Post on 26-Nov-2015
FrameMaker Ver5.5E(PC) COVER [GENERAL] FOR Di251/Di35105.03.01
Di251 / Di351
SERVICE MANUAL
[GENERAL]
4011-7990-11
FrameMaker Ver.5.5(PC) Di251/Di35105.03.01
INDEX (GENERAL)
GENERAL
MECHANICAL/ELECTRICAL
FrameMaker Ver5.5E(PC) Di251/Di351 GENERAL05.03.01
GENERAL
FrameMaker Ver5.5E(PC) Di251/Di351 GENERAL05.03.01
i
CONTENTS1. SAFETY INFORMATION .................................................................................G-12. SPECIFICATION .............................................................................................G-63. PRECAUTIONS FOR INSTALLATION ............................................................G-9
3-1. Installation Site ........................................................................................G-93-2. Power Source ..........................................................................................G-93-3. Grounding ................................................................................................G-9
4. PRECAUTIONS FOR USE ..............................................................................G-104-1. To ensure that the copier is used in an optimum condition .....................G-104-2. Operating Environment ............................................................................G-104-3. Power Requirements ...............................................................................G-104-4. Note .........................................................................................................G-10
5. HANDLING OF CONSUMABLES ....................................................................G-116. OTHER PRECAUTIONS .................................................................................G-127. SYSTEM OPTIONS .........................................................................................G-13
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
1. SAFETY INFORMATIONLaser Safety
Internal Laser RadiationMaximum Average Radiation Power: 19.5 W (Di251)/27.8 W (Di351) at laser aperture ofthe print head unit
Wavelength: 770-79775-79
This product employThe Laser Diode andThe print head unit isTherefore, the print h
CDRH regulatioThis copier is certifiedard according to theLaser products markRadiological Health (ment of Health and Hhazardous laser radi
CAUTION: The use of controls, adjustments or performance of proceduresother than those specified in this manual may result in hazardous radiationexposure. Because of this, Minolta strongly recommends that you operateyour copy machine only as described in this documentation.
ThiDooG-1
5 nm (Di251)5 nm (Di351)s a Class 3b Laser Diode that emits an invisible laser beam.
Scanning Polygon Mirror are incorporated in the print head unit.NOT A FIELD SERVICE ITEM.
ead unit should not be opened under any circumstances.
nd as a Class I Laser product under the Radiation Performance Stan-Food, Drug and Cosmetic Act of 1990. Compliance is mandatory for
eted in the United States and is reported to the Center for Devices andCDRH) of the U.S. Food and Drug Administration of the U.S. Depart-uman Services (DHHS). This means that the device does not produceation.
1166O263AB
Laser Aperture ofthe Print Head Unit
s figure shows the view inside the Rightr with the Imaging Unit removed.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
The label shown to page G-4 indicates compliance with the CDRH regulations and must beattached to laser products marketed in the United States.
This is a semiconductor laser. The maximum power of the laser diode is 5 mW (Di251)15 mW (Di351) and the wavelength is 770-795 nm (Di251)/775-795 nm (Di351).For Europe
For Denmark
For Finland
For Sweden
CAUTION: Use of controls, adjustments or performance of procedures other than thosespecified in this manual may result in hazardous radiation exposure.
CAUTION: Use of controls, adjustments or performance of procedures other than thosespecified in this manual may result in hazardous radiation exposure.
This is a semicond15 mW (Di351) and
ADVARSELUsynlig laserstrlinUndg udsttelsekravene.
Dansk: Dette er en15 mW (Di351) og
LUOKAN 1 LASER
VAROITUSLaitteen kyttminekyttjn turvallisu
VAROAvattaessa ja suojakatso steeseen.
Tm on puolijohdaallonpituus on 770
KLASS 1 LASER A
VARNINGOm apparaten anvanvndaren utsttaG-2
uctor laser. The maximum power of the laser diode is 5 mW (Di251)the wavelength is 770-795 nm (Di251)/775-795 nm (Di351).
g ved bning, nr sikkerhedsafbrydere er ude af funktion.for strling. Klasse 1 laser produkt der opfylder IEC60825 sikkerheds
halvlederlaser. Laserdiodens hjeste styrke er 5 mW (Di251)blgelngden er 770-795 nm (Di251)/775-795 nm (Di351).
LAITE
n muulla kuin tss kyttohjeessa mainitulla tavalla saattaa altistaausluokan 1 ylittvlle nkymttmlle lasersteilylle.
lukitus ohitettaessa olet alttiina nkymttomlle lasersteilylle. l
elaser. Laserdiodin suurin teho on 5 mW (Di251)/15 mW (Di351) ja-795 nm (Di251)/775-795 nm (Di351).
PPARAT
nds p annat stt n i denna bruksanvisning specificerats, kans fr osynlig laserstrlning, som verskrider grnsen fr laserklass 1.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
For Norway
Laser Safety LaA laser safety label is
The Manufacturers NPlease write down th
VARNINGOsynlig laserstrining nr denna del r ppnad och sprren r urkopplad. Betrakta ejstrien.
Det hr r en halvledarlaser. Den maximala effekten fr laserdioden r 5 mW (Di251)15 mW (Di351) och vglngden r 770-795 nm (Di251)/775-795 nm (Di351).
ADVERSELDersom apparatet brukes p annen mte enn spesifisert i denne bruksanvisning, kanbrukeren utsettes fr unsynlig laserstrlning, som overskrider grensen for laser klass 1.
Dette en halveder log blgelengde er
Model:Serial No.:
CLASS 1LASER KL
Laser safety labeG-3
belattached to the outside of the copy machine as shown below.
ame Plate is affixed at the position illustrated above.e Model Name and Serial No. of your copier here.
aser. Maksimal effekt till laserdiode er 5 mW (Di251)/15 mW (Di351)770-795 nm (Di251)/775-795 nm (Di351).
LASER PRODUCTASSE 1 PRODUKT
1166O252BA 4015O020AB
l
ManufacturersName Plate
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
Label inside copy machineThe following laser safety label will be attached inside the copy machine as shown below.
Please read the following for your own protection.
Opening the cover indicated by the Caution label may expose you to harmful laser radiationwhich could cause damage or loss of eyesight. Do not open the cover when the power ison.
CautionG-4
1166O234AA
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
ALL AreasCAUTION
Danger of explosion if battery is incorrectly replaced.Replace only with the same or equivalent type recommended by the manufacturer.Dispose of used batteries according to the manufacturers instructions.
Germany onlyVORSICHT!
Explosinsgefahr bei unsachgemen austausch der batterie.Ersatz nur durch denselben oder einen vom hersteller empfohlenen hnlichen typ.Entsorgung gebrauchter batterien nach angaben des herstellers.
Denmark only
Lithiumbatteri - Ekspteri af samme fabrikaLevr det brugte batt
Norway only
Eksplosjonsfare vedBenytt samme batterBrukte batterier kass
Sweden only
Explosionsfara vid feAnvnd samma batteapparattillverkaren.Kassera anvnt batte
Finland only
Paristo voi rjht,Vaihda paristo ainoaHvit Kytetty paris
ALL Areas
Replace only with thDispose of used IC P
Germany only
Austausch nur durchtyp. Entsorgung gebrG-5
ADVARSEL!losionsfare ved fejlagtig hndtering Udskiftning m kun ske med bat-t og type.eri tilbage til leverandren.
ADVARSELfeilaktig skifte av batteri.itype eller en tilsvarende type anbefalt av apparatfabrikanten.eres i henhold til fabrikantens instruksjoner.
VARNINGlaktigt batteribyte.rityp eller en ekvivalent typ som rekommenderas av
ri enligt fabrikantens instruktion.
VAROlTUSlos se on virheellisesti asennettu.staan laitevalmistajan suosittelemaan tyyppiin.to valmistajan ohjeiden mukaisesti.
CAUTIONe same or equivalent type recommended by the manufacturer.ackage according to the manufacturers instructions.
VORSICHT!denselben oder einen vom Hersteller empfohlenen, gleichwertigen
auchter Batterien nach Angaben des Herstellers.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
2. SPECIFICATION
COPY PAPER TYPE
: Reliably fed
TYPEORIGINAL SCANNING SYSTEMPHOTOCONDUCTORCOPYING SYSTEM
RESOLUTIONPAPER FEEDING SYSTEM
EXPOSURE SYSTEDEVELOPING SYSCHARGING SYSTE
IMAGE TRANSFERPAPER SEPARATIN
FUSING SYSTEMPAPER DISCHARGMAX. ORIGINAL SI
::::
::
Console/Desktop TypeCCD Line SensorOrganic PhotoconductorElectrostatic Dry Powdered Image Transfer to PlainPaper with a Laser600 dpi3-way systemManual Feed Tray ...Single1st Drawer...............250 Sheets (Plain paper)
Pa
Type
P
T
DimensionsMM
MULTIPLE COPIESWARMING-UP TIME
FIRST COPY TIMEG-6
MTEMM
SYSTEMG SYSTEM
ING SYSTEMZE
:::
::
:::
50 Sheets (Special paper)2nd Drawer .............500 Sheets (Plain paper)
35 CPM/25 CPM: StandardMirror Scanning, Slit ExposureMT-HG SystemComb Electrode (1) DC Negative Corona withScorotron SystemRoller Image TransferPaper Separator Fingers and Charge NeutralizingPlateHeat RollerCharge Neutralizing BrushA3L, 11 17L
per Source 1st Drawer Manual Feed Tray
lain paper (60 to 90 g/m2) Transparencies
hick paper (91 to 157 g/m2) Postcards (190 g/m2)
Recycled paper aximum (Width Length) 297 432 mm 297 432 mminimum (Width Length) 90 140 mm 90 140 mm
::
:
35 CPM (1 to 999), 25 CPM(1 to 99)35 CPM (70 sec. or less)25 CPM (60 sec. or less)A4C, 1st Drawer, full size mode35 CPM (4.6 sec.), 25 CPM (5.8 sec.)
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
CONTINUOUS COPY SPEED (copies/min)
ZOOM RATIOS
POWER/CURRENT
ENVIRONMENTAL C
- Metric - - Inch -Size Speed Size SpeedA3LB4LA4LA4CB5LB5C
202327353040
11 17L8-1/2 14L8-1/2 11L8-1/2 11C
20232835
Fixed
Variable
LENSEXPOSURE LAMPFUSING TEMPERA
Exposure Lamp(Rating)
24 V20 W
POWER REQUIREM
TemperatureHumidityAmbient IlluminationLevelnessG-7
CONSUMPTION (copier only)
ONDITIONS
- Metric - - Inch -Full Size 1.000 1.000
Enlargement 2.000 1.414 1.224 1.154
2.000 1.545 1.294 1.214
Reduction
0.866 0.816 0.707 0.500
0.785 0.733 0.647 0.500
25 % to 400 % (in 0.1 % increments)
TURE
:::
Through Lens (F = 4.0, f = 62 mm)Fluorescent Lamp190 C
Fusing RollerHeater Lamp
(Rating)
Max. PowerConsumption(full system)
Max. CurrentConsumption(full system)
35 CPM: 800 W25 CPM: 800 W 230 V: 1450 W
Metric area35 CPM/25 CPM: 6 A
Inch area35 CPM/25 CPM: 11.5 A
ENTS : 230 V, 50/60 Hz
10 to 32 C with a fluctuation of 10 C or less per hour15 to 85 % RH with a fluctuation of 10 % RH or less per hour3,000 lux or less1 (1.75 mm/100 mm)
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
COPIER DIMENSIONS
COPIER WEIGHT
:
:
Metric area35 CPM: W...632 mm, D...707 mm, H...647 mm25 CPM: W...594 mm, D...707 mm, H...647 mmInch area35 CPM: W...25, D...27-3/4, H...25-1/225 CPM: W...23-1/2, D...27-3/4, H...25-1/2Metric area35 CPM: 60.5 kg, 25 CPM: 58.7 kgInch area35 CPM: 133-1/2 lb, 25 CPM: 129-1/2 lbG-8
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
3. PRECAUTIONS FOR INSTALLATION3-1. Installation SiteTo ensure safety and utmost performance of the copier, the copier should NOT be used in aplace: Where it will be subjected to extremely high or low temperature or humidity. Where it will be subjected to sudden fluctuations in either temperature or humidity. Which is exposed to direct sunlight. Which is in the direct air stream of an air conditioner, heater, or ventilator. Which has poor ventilation or is dusty. Which does not have a stable, level floor or where it will receive undue vibration. Which is near any kind of heating device. Which is near vola Where it may be s Which puts the op Where ammonia g
3-2. Power S If any other electri
the capacity of the Use a power sourc Never connect by
outlet being used f Ensure that the co
electrical equipmenism.
Make the following Is the power plug a Are there any crac Has the power plu Does something, i
Use an outlet with a
3-3. Ground Always ground the
leakage. Connect the groun
complies with the Never connect the
arrester, or a wateG-9
tile flammables (thinner, gasoline, etc.).plashed with water.erator in the direct stream of exhaust from the copier.as might be generated.
ource
cal equipment is sourced from the same power outlet, make sure thatoutlet is not exceeded.e with little voltage fluctuation.
means of a multiple socket any other appliances or machines to theor the copier.pier does not ride on the power cord or communication cable of othernt, and that it does not become wedged into or underneath the mecha-
checks at frequent intervals:bnormally hot?
ks or scrapes in the cord?g been inserted fully into the outlet?ncluding the copier itself, ride on the power cord?
capacity of 15 A or more. 220 to 240 V, 10 A or more.
ingcopier to prevent receiving electrical shocks in the case of electrical
d wire to the ground terminal of the outlet or a grounding contact whichlocal electrical standards.ground wire to a gas pipe, the ground wire for a telephone, lightningr pipe for fear of fire and electrical shock.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
4. PRECAUTIONS FOR USE4-1. To ensure that the copier is used in an optimum condition Never place a heavy object on the copier or subject the copier to shocks. Insert the power plug all the way into the outlet. Do not attempt to remove any panel or cover which is secured while the copier is making
copies. Do not turn OFF the copier while it is making copies. Provide good ventilation when making a large number of copies continuously. Never use flammable sprays near the copier. If the copier becomes inordinately hot or produces abnormal noise, turn it OFF and
unplug it. Do not turn ON the
outlet. When unplugging Do not bring any m Do not place a vas Be sure to turn OF Use care not to dr
4-2. OperatinThe operating enviro Temperature: 10 to Humidity: 15 to 85 Rate of temperatu Rate of humidity c
4-3. Power RThe power source vo Voltage fluctuation
Frequency fluctuat
4-4. Note It is prohibited to c
bonds (even when For fear of infringe
including books, mwhen the copy is tG-10
power switch at the same time when you plug the power cord into the
the power cord, do not pull on the cord; hold the plug and pull it out.agnetized object near the copier.e or vessel containing water on the copier.F the power switch at the end of the workday or upon power failure.
op paper clips, staples, or other small pieces of metal into the copier.
g Environmentnmental requirements of the copier are as follows.32 C
% RHre change: 10 C/hhange: 10 % RH/h
equirementsltage requirements are as follows.: AC 220 to 240 V 10 %
(copying performance assured)+10 %/-15 % (paper feeding performance assured)
ion: 50/60 Hz 0.3 %
opy paper and hard currencies, government securities, and municipalthey are stamped as Sample).ment of copyright, it is also prohibited to copy copyrighted works,usic, works of art, maps, drawings, motion pictures, and photos excepto be used only personally.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
5. HANDLING OF CONSUMABLESBefore using any consumables, always read the label on its container carefully. Paper can be easily damaged by dampness. To prevent absorption of moisture, store
paper, which has been removed from its wrapper but not loaded in the drawer, in asealed plastic bag in a cool, dark place.
Keep consumables out of the reach of children. Do not touch the PC Drum with bare hands. The same sized paper is of two kinds, short grain and long grain. Short grain paper
should only be fed through the copier crosswise, long grain paper should only be fedlengthwise.
If your hands become soiled with toner, wash them with soap and water. Do not throw away
collected. Do not burn, bury
starter, toner, etc.) Do not store consu Is hot and humid. Is subject to direct Has an open flameG-11
any used consumables (PC Drum, starter, toner, etc.). They are to be
in the ground, or throw into the water any consumables (PC Drum,.
mables in a place which:
sunlight.nearby.
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
6. OTHER PRECAUTIONSUse the following precautions when performing service jobs for a copier that uses a laser. When a service job needs to be performed in the laser beam path, such as when working
around the printerhead or PC Drum, be sure first to unplug the power cord of the copierfrom the outlet.
If the job requires that the power cord be left plugged in, observe the following precau-tions.
1. Take off your watch, ring and any other reflective object and wear laser protective gog-gles.
2. Keep users away from the job site.3. Do not bring a highly reflective tool into the laser beam path during the service job.G-12
FrameMaker Ver5.5E(PC)Di251/Di351 GENERAL05.03.01
7. SYSTEM OPTIONS
1. Duplexing Docum2. Automatic Docum3. Original Cover K4. Plug-In Counter5. Duplex Unit AD-6. Paper Feed Unit7. Paper Feed Unit
(35 CPM/25 CPM8. Large Capacity C9. Copy Table
1166O014AA 1166O007AA
1 2 3
1166O012AA
1166O011AA
4015O218AA
1
14, 1
1
18 191166O008AA
1145M035AA
4
13G-13
ent Feeder AFR-17ent Feeder AF-9
it OC-3
15 (35 CPM: Standard)PF-118PF-119: Standard)abinet PF-117
10. Copy Desk11. Printer Controller Pi350212. 8MB/16MB/32MB Memory13. Data Terminal DT-10314. Finisher FN-10915. Finisher FN-11016. Job Tray JS-20117. Shift Tray OT-10218. Option Tray JS-10019. Mailbin Finisher FN-504
4015O025AB 4015O028AB
5
4015O027AA
4015O029AA
1166O190AA
1166O191AB
6, 7
10
8
94002O099AA
4002O102AA
6
5
7
11
12
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
MECHANICAL/ELECTRICAL
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
CONTENTS1. CROSS-SECTIONAL VIEW ............................................................................M-12. COPYING PROCESS ......................................................................................M-23. DRIVE SYSTEM ..............................................................................................M-44. OPERATING SEQUENCE ..............................................................................M-55. CPU OVERRUN MONITOR FUNCTION .........................................................M-6
5-1. Processing Performed during Watchdog Function ..................................M-66. IMAGE STABILIZATION SYSTEM ..................................................................M-77. IMAGING CARTRIDGE (I/C) ...........................................................................M-8
7-1. I/C Drive Mechanism ...............................................................................M-97-2. Identification and Life of I/C .....................................................................M-9
8. PC DRUM ....8-1. Groundin
9. DRUM CHAR(1) Ozo
10. IR SECTION10-1.Construc10-2.Image P10-3.Scanner
(1) Sca(2) 2nd
11. ORIGINAL SI11-1.Original11-2.Original11-3.Original
12. PH SECTION12-1.Laser Em
13. DEVELOPING13-1.Sleeve/M13-2.Develop13-3.ATDC S
(1) ATD(2) Ton(3) Ton
13-4.Toner Bo13-5.Toner Bo13-6.Main Ho13-7.Sub Hop13-8.Sub Hop
14. PAPER TAKE14-1.1st Draw14-2.1st Draw14-3.1st Draw14-4.1st Draw14-5.1st Draw
(1) Pap14-6.Drawer Pi
....................................................................................................M-10g of the PC Drum ......................................................................M-10GING ..........................................................................................M-11ne Fan .......................................................................................M-12....................................................................................................M-13tion of the Exposure Section .....................................................M-14rocessing Flow ...........................................................................M-15and 2nd/3rd Mirrors Carriage Moving Mechanism ....................M-16nner Moving Mechanism ...........................................................M-16/3rd Mirrors Carriage Moving Mechanism .................................M-16ZE DETECTING SYSTEM .........................................................M-17Size Detecting Operation ...........................................................M-18Size Detection ............................................................................M-18Size Detection Timing ................................................................M-19...................................................................................................M-20ission Timing ............................................................................M-21UNIT ........................................................................................M-22
agnet Roller ..............................................................................M-23ing Bias .......................................................................................M-23ensor ..........................................................................................M-24
C Sensor Automatic Adjustment ..............................................M-24er Replenishing Control .............................................................M-24er Empty Control (T/C Recovery Mode) ....................................M-25ttle Home Position Detection Mechanism .................................M-26ttle Vibration Mechanism ..........................................................M-26
pper Toner Replenishing Mechanism ........................................M-27per Toner Replenishing Mechanism ..........................................M-28per Toner Empty Detection Control ...........................................M-28-UP/FEED SECTION ................................................................M-29er-in-Position Detection .............................................................M-29er Paper Empty Detection .........................................................M-30er Paper Near-Empty Detection ................................................M-30er Paper Lifting Plate .................................................................M-31er Paper Size Detection ............................................................M-31er Size Table According to Sensor/Switch Conditions ..............M-32aper Take-Up Mechanism ........................................................M-33
FrameMaker Ver5.5E(PC) Di200/Di251/Di351 MECHANICAL/ELECTRICAL01.02.05
(1) Paper Separating Mechanism .........................................................M-3314-7.Drawer Paper Take-Up Control ...............................................................M-34
(1) Paper Take-Up Roll .........................................................................M-34(2) Paper Take-Up Retry Control ..........................................................M-34(3) Paper Take-Up Interval Control .......................................................M-34(4) Double Feed Paper Take-Up Control (35-cpm copier only) ............M-35
15. MANUAL BYPASS TRAY ................................................................................M-3615-1.Manual Bypass Paper Take-Up Control ..................................................M-3615-2.Manual Bypass Paper Empty Detection ..................................................M-36
16. SYNCHRONIZING ROLLERS .........................................................................M-3716-1.Paper Dust Remover ...............................................................................M-3716-2.Synchro
17. IMAGE TRAN17-1.PC Drum
18. PC DRUM CL19. ERASE LAMP20. FUSING UNIT
20-1.Fusing U20-2.Fusing T
(1) Tem20-3.CPM Co
21. PAPER EXIT22. OTHER UNIT
22-1.Memory22-2.Flash Me22-3.Interior C
(1) I/C(2) Fus(3) Powii
nizing Roller Drive Mechanism ...................................................M-38SFER AND PAPER SEPARATION ...........................................M-39Paper Separator Fingers .........................................................M-39
EANING .....................................................................................M-40..................................................................................................M-41..................................................................................................M-42
nit Drive Mechanism ..................................................................M-43emperature Control ....................................................................M-44perature Control Table during Standby State and Copy Cycle M-44
ntrol ............................................................................................M-44UNIT ..........................................................................................M-45S AND MECHANISMS ..............................................................M-46Backup .......................................................................................M-46mory ..........................................................................................M-46ooling Mechanism .....................................................................M-47
Cooling Mechanism ...................................................................M-47ing Section Cooling Mechanism ................................................M-48er Supply Section Cooling Mechanism .....................................M-49
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
1. CROSS-SECTIONAL VIEW
1. 2nd Mirror2. 3rd Mirror3. Exposure Lamp4. 1st Mirror5. Lens6. CCD Unit7. Paper Exit Rolle8. Fusing Transpor9. Right Fusing Ro
2 31 4 5 6 7 8
18M-1
rt Rollerller
10. Image Transfer Roller11. Synchronizing Roller12. Manual Bypass Tray13. Manual Feed Paper Take-Up Roll14. Paper Separator Pad15. Paper Take-Up Roll16. Imaging Cartridge I/C17. PH Unit18. Left Fusing Roller
4011M001AA
9
1011
1314151617
12
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
2. COPYING PROCESS
1. PC Drum Changes the imag
sponding electrost2. Drum Charging Generates a nega3. Photoelectric Co The CCD converts
and outputs it to th4. MFB2 Board Converts the elect
corrections, and ou Compresses and s
image processing After going throug
responding analog5. Laser Exposure A laser beam strik6. Development Negatively charge
visible image. AC/DC negative b
ing toner from stick Toner scraped off7. Paper Feed Feeds sheets of pa8. Manual Bypass Feeds sheets of pa9. Image Transfer A positive charge i
the surface of the10. Paper Separation The PC Drum Sep
4. MFB2 Board10. Paper Separation
2. Drum Charging
11. Cleaning
13. Fusing
3. Photoelectric Conversion Section
12. Erase
14. Paper ExitM-2
e of the original projected onto the surface of the drum to a corre-atic latent image.
tive DC charged layer on the surface of the PC Drum.nversion Sectionthe light reflected off the original to a corresponding electrical signale IR image processing section.
rical signal to a corresponding 8-bit digital image signal, makes varioustputs the results to the memory.tores in memory the digital image signal, and then outputs it to the PHsection.h necessary corrections, the digital image signal is converted to a cor-
signal, based on which the intensity of the laser light is controlled.
es the surface of the PC Drum, creating an electrostatic latent image.
d toner adheres to the latent image on the PC Drum surface, creating a
ias voltages are applied to the Sleeve/Magnet Roller, thereby prevent-ing to the background.
by the cleaning mechanism is recycled.
per from the appropriate paper source.
per from the Manual Bypass Tray.
s applied to the Image Transfer Roller to transfer the visible image onPC Drum onto the paper.
arator Fingers remove paper from the surface of the PC Drum.
1. PC Drum
9. Image Transfer
8. Manual Bypass
6. Development
7. Paper Feed
5. Laser Exposure
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
11. Cleaning Residual toner is scraped off the surface of the PC Drum. The toner is then recycled back to the Developing Unit.12. Erase The PC Drum is exposed to light, which effectively neutralize any residual charge on the
surface of the PC Drum.13. Fusing Heat and pressure applied by the Right and Left Fusing Rollers fuse toner on the paper.14. Paper Exit Feeds paper out of the copier onto the Exit Tray.M-3
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
3. DRIVE SYSTEM
1. Scanner Motor M2. Main Motor M23. I/C Motor M1
1M-4
10
3 2 4011M002AA
Fra
meM
akerVe
r5.5E(PC)D
i251/Di351
MECHANICAL/ELECTR
ICAL.05.03
.01
M-5
4.O
PERATING
SEQUENCE
4011M028C
A
Power Unit Cooling Fan Motor M4
Power Switch ON Start key ON
Cooling Fan Motor M3
Ozone Fan Motor M8
Main Motor M2
Fusing Roller Heater Lamp H1
Manual Feed Paper Take-Up Clutch CL2
1st Drawer Paper Take-Up Solenoid SL1
Polygon
Synchro
Synchro
Paper Ex
I/C Moto
Laser
Drum Ch
Image T
Develop
Full speed
Full speed
170
Full speed
Full speed
gized for a continuous 300-ms period.nergized for a continuous 10-s period.
Half speed
Half speed
*1 *2
Half speed
Half speed
Warm-up completed
Predrive Fusing predriveMotor M5
nizing Roller Sensor PC2
nizing Clutch CL1
it Sensor PC3
r M1
arge Bias
ransfer Bias
ing Bias*1: When the Main Motor or I/C Motor remains ener*2: When the Main Motor and I/C Motor remain dee
Agitation predrive
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
5. CPU OVERRUN MONITOR FUNCTION The CPU overrun monitor function (watchdog function) is a self-monitoring function that
determines whether any of the CPUs mounted on the copier overruns. If this function detects that a CPU overruns, the copier automatically resets the CPU,
restarting the logic circuit and mechanism. The copier CPU not only performs the self-monitoring function, but also checks the com-
munication status with the options CPU.
5-1. Processing Performed during Watchdog FunctionThe following operations are performed when a CPU operates erratically.If a copier CPU overruns: All CPUs including If the overrun occu
itself before resettiis detected as a sh
If an erratic operation The copier turns O
option. If the overrun occu
feeds all sheets ofM-6
those of the options are reset and a restart sequence is performed.rs during a copy cycle, the copier tries to feed all sheets of paper out ofng the CPU. (Any sheet of paper that could not be fed out of the copiereet of paper left when the restart sequence is later carried out.)is detected in communications with the options CPU:
FF and ON the options relay and performs a restart sequence of the
rs during a copy cycle, the copier stops the paper take-up operation,paper out of itself, and then performs a restart sequence of the option.
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
6. IMAGE STABILIZATION SYSTEM The following image stabilization controls are provided to ensure stabilized copy image.
Item Purpose ControlPC Drum temperaturecorrection
To compensate for any changein ID due to changing PC Drumtemperatures.
I/C Thermistor is used to detecttemperature and, according tothe detected temperature, Vg/Vb is corrected.
PC Drum deteriorationcorrection
To compensate for degradedsensitivity caused by a deterio-rating PC Drum.
Vg is corrected according to theperiod of time during which thePC Drum has turned.
Grid Voltage: VgM-7
1171M028AA
PC Drum Charge Corona
PC Drum RevolutionCounter
I/C Thermistor TH2
Developing Bias: Vb
Sleeve/Magnet Roller
CPU
PC Drum
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
7. IMAGING CARTRIDGE (I/C) This copier employs an Imaging Cartridge (I/C in this manual). The I/C contains a PC Drum, Developing Unit, PC Drum Charge Corona, and a Cleaning
Unit as one unit.
TonerM-8
Supply Port
1171M002AA1171M003AA
ATDC Sensor UN2
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
7-1. I/C Drive Mechanism Drive from the I/C Motor is transmitted via a gear train to the PC Drum and Hopper.
7-2. Identific When the Start ke
mines whether the The copier monito
PC Drum has turn
Electrical ComponM1
PC Drum Drive GearM-9
ation and Life of I/Cy is pressed or the Side Cover is opened and closed, the copier deter-I/C is new or one which has been used previously.
rs the I/C life by storing in memory the period of time during which theed. The data is cleared when a new I/C is installed in the copier.
ent Control Signal ON OFF Wiring DiagramPJ5A-3 L H 5-G
4011M021AA
Hopper Drive Gear
I/C Motor M1
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
8. PC DRUM The PC Drum consists of an aluminum base coated with a charge generation layer and a
charge transport layer.
8-1. Ground The potential of th
grounded to the fra
(PC Drum Cross-Section)
Gear
PC DrumCharge Transport Layer
Charge Generation Layer
Aluminum Base
Ground Plate
ShaftM-10
ing of the PC Drume areas on the surface of the PC Drum exposed to the laser light isme.
1139M007AA
1167M007AA
1171M005AA
Ground Point PC Drum
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
9. DRUM CHARGING The PC Drum Charge Corona has a grid mesh to deposit a charge evenly across the sur-
face of the PC Drum. The corona unit has a comb electrode that discharges only toward the grid mesh, thus
minimizing the amount of ozone produced.
Electrical ComponDrum charging out
PC Drum
PC Drum Charge CoronaM-11
ent Control Signal ON OFF Wiring Diagramput PJ15A-4A L H 6-E
1171M006AB
1171M008AC
Comb ElectrodeGrid Mesh
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
(1) Ozone Fan Ozone produced by the PC Drum Charge Corona is absorbed from the air, which is being
drawn out of the copier by the Ozone Fan Motor, by the ozone filter located beneath themotor.
Electrical ComponM8
I/COzone Fan Motor M8
Ozone FM-12
ent Control Signal ON OFF Wiring DiagramPJ10A-4 H L 8-F
4011M025AAilter
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
10. IR SECTION The surface of the original is exposed to a light and the light reflected off the original is
converted to an electrical signal. The electrical image signal is then output to the MFB2 Board.
1. BCR Board BCR2. Original Size De3. Original Cover D4. Original Size De5. Exposure Lamp6. Original Size De7. Scanner Motor M8. Original Size De9. Original Size De
12
34
56
7
910
8
1718M-13
tecting Sensor 5 UN7etecting Sensor PC14tecting Sensor 4 UN6LA2tecting Sensor 6 UN810
tecting Sensor 1 UN3tecting Sensor 2 UN4
10. Original Size Detecting Sensor 3 UN511. Scanner Home Position Sensor 1 PC1212. Size Reset Switch S613. CCD2 Board CCD214. Lens15. Scanner16. Scanner Home Position Sensor 2 PC1317. 2nd/3rd Mirrors Carriage18. Inverter Board 1 INV
11
12
1413
15
164011M008AA
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
10-1. Construction of the Exposure Section
1. Auxiliary ReflectoWhen a book orgenerally fails toally too dark. TheExposure Lamp o
2. Exposure Lamp LA fluorescent lam
3. 1st MirrorDirects the light r
Electrical ComponLA2
2. Exposure Lamp1. Auxiliary ReflectorM-14
rother bound original is copied, the paper in the area near the bindingcome flush against the glass, so that the copy of these areas is gener-Auxiliary Reflector reduces this problem by reflecting light from thento these areas of the original.A2p is used to illuminate the original.
eflected off the original to the 2nd Mirror.
ent Control Signal ON OFF Wiring DiagramCN13BCR-1 L H 14-B
1167M089AA3. 1st Mirror
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
10-2. Image Processing Flow Image processing consists of the following blocks.
1. Photoelectric Co Light reflected off
which, in turn, outp2. MFB2 Board After converting th
it to 8-bit image da Compresses the im The image memor
cpm copier and 16(optional).
20-cpm copier: U.S3. PH Emits a laser beam
the surface of the
1. Photoelectric Conversion (CCD Sensor)
2. MFB2 Board
3. PH (Laser Emission)M-15
nversion (CCD Sensor)the original is received through mirrors and lens by the CCD Sensoruts the corresponding data to the MFB2 Board.
e data received from the CCD to an analog signal, the board convertsta (A/D conversion). It further makes various corrections.age data, stores it, and uncompresses it.
y has a standard capacity of 32MB for the 35-cpm copier and the 25-MB for the 20-cpm copier, and can be expanded up to 64MB
.A. and Canada Only
according to the image data provided by the MFB2 Board to exposePC Drum.
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
10-3. Scanner and 2nd/3rd Mirrors Carriage Moving Mechanism(1) Scanner Moving Mechanism The Scanner is driven by the Scanner Motor at a speed according to the set zoom ratio
calculated with reference to the speed of the full size mode. The Scanner is detected at its home position by Scanner Home Position Sensor 1. Scanner Home Position Sensor 2 determines the home position of the Scanner when the
AF-9 is used.
(2) 2nd/3rd Mirrors Carriage Moving Mechanism The 2nd/3rd Mirrors Carriage travels at a speed half that of the Scanner, thereby keeping
constant the optical path length between the original and PC Drum.
Electrical Compon
M10
Electrical ComponPC12PC13
2nd/3rd Mirrors CaM-16
ent Control Signal ForwardRotationBackwardRotation Wiring Diagram
CN3BCR-1 to 3 Pulse output 14-C
ent Control Signal Activated Deactivated Wiring DiagramCN11BCR-1 L H 15-C
CN12BCR-12 L H 15-D
1167M112AA
Scanner Motor M10
Scanner HomePosition Sensor 1PC12
Scanner
Scanner Home PositionSensor 2 PC13
rriage
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
11. ORIGINAL SIZE DETECTING SYSTEM When the copier is in Auto Paper or Auto Size mode, the Original Size Detecting Sensors
mounted at the optical section are used to determine the size of the original.
UN3: Optional only foUN5, UN7: OptionalUN8: Optional for the
Electrical ComponUN3UN4UN5UN6UN7
UN8 (metric)UN8 (inch)
Original Size DetecSensor 5 UN7
Original Size DetectingOriginal Size DetectSensor 4 UN6
Original Size DetectingSensor 6 UN8
Original Size DetectingSensor 1 UN3
Original Size DetectingSensor 2 UN4M-17
r the metric areas; not available for the inch areas
inch areas; standard for the metric areas
ent Control Signal Activated Deactivated Wiring DiagramCN2DSN-4 L H 17-DCN5BCR-7 L H 14-A
CN5DSNS-4 L H 17-ECN6BCR-4 L H 15-B
CN3DSNS-1 L H 17-ECN8BCR-4 L H 15-CCN4DSN-4 L H 15-F
4011M011AA
ting
Sensor 3 UN5ing
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
11-1. Original Size Detecting Operation The copier determines that there is an original placed on the glass when a photo receiver
of the original size detecting sensor receives the light of a given level or higher of inten-sity.
11-2. Original The copier CPU d
tuses of the originasensors.
: Detected by sens
Original SizeU
11 17A3LA4LA4CA5LB4LB5LB5CLetter LLetter CLegalM-18
Size Detectionetermines the correct original size based on the combination of sta-l, either present or absent, as detected by the original size detecting
or
N3 UN4 UN5 UN6 UN7 UN8S1 S2 S3 S4 S5 S6 S7 S8 S9
1136M020AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
11-3. Original Size Detection Timing Takes size readings:
When the Original Cover is raised to an angle of 15 or more (Original Cover DetectingSensor is unblocked).
Affirms size readings:When the Original Cover is lowered to an angle of 15 or less (Original Cover DetectingSensor is blocked) and the Size Reset Switch is actuated.Or, when the Start key is pressed with the Original Cover Detecting Sensor unblocked.
Resets size readings:When the Original Cover is raised and the Size Reset Switch is just deactuated from theactuated state.
Electrical ComponS6
Electrical ComponPC14
Size Reset Switch SM-19
ent Control Signal ON OFF Wiring DiagramCN9BCR-2 L H 15-D
ent Control Signal Activated Deactivated Wiring DiagramCN10BCR-2 L H 15-C
1167M113AB
Original Cover DetectingSensor PC14
6
Magnet
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
12. PH SECTION Image data sent from the memory section is corrected and, based on the corrected data,
a laser light is projected onto the surface of the PC Drum to form a corresponding latentimage.
PH UnitM-20
1167M022AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
12-1. Laser Emission Timing The laser diode is forced to turn ON to project the laser beam onto the SOS Sensor
Board, which generates an SOS signal. The SOS signal determines the laser emission timing.
A to B: LD activationB to C: LD OFFC to D: Laser beam e
Electrical ComponM5
Polygon Mirror
f- Lens
Polygon Motor M5 SOS Mirror
Cylindrical Lens Collimator Lens
Laser Diode BoardPWB-B
SOS Sensor
PC Drum
DM-21
xposure area according to the image data
ent Control Signal Energized Deenergized Wiring DiagramPJ9A-3 L H 7-G
1167M024AD
PC Drum
1171M038AA
SOS Mirror SOSSensor
SOS SignalABC
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
13. DEVELOPING UNIT The Developing Unit agitates and triboelectrically charges toner so that it sticks to the
electrostatic latent image formed on the surface of the PC Drum, then changing theimage to a visible, developed one.
1. Spent Toner Rec2. PC Drum Charg3. Spent Toner Fee4. Cleaning Blade5. Spent Toner Fee6. PC Drum Paper7. PC Drum Protec
1 2 3 4 56
1213
14M-22
ycling Coile Coronad Roller 2
d Roller 1Separator Fingertive Shutter
8. PC Drum9. Sleeve/Magnet Roller10. 1st Toner Conveying Roller11. ATDC Sensor UN212. 2nd Toner Conveying Roller13. 3rd Toner Conveying Roller14. Spent Toner Recycling Duct
7
8
9
10111171M011AB
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
13-1. Sleeve/Magnet Roller The Sleeve/Magnet Roller, which consists of an outer sleeve roller and an inner magnet
roller, conveys developer to the point of development. The magnetic force of the magnet roller at the point of development is the strongest so
that the developer brush stands straight up to deliver the greatest amount of toner to thepoint of development.
13-2. Develop A developing bias
from sticking to the The amount of ton
lower the PC Drum When the potentia When the potentia
Electrical ComponVb
PC DrumSleeve/Magnet Roller
SleeveM-23
ing Biasvoltage (Vb) is applied to the Sleeve/Magnet Roller to prevent tonerbackground of the image.
er attracted onto the surface of the PC Drum depends on how muchsurface potential (Vi) is than Vb (i.e., potential difference).
l difference is large, a greater amount of toner is attracted.l difference is small, a smaller amount of toner is attracted.
ent Control Signal ON OFF Wiring DiagramPJ15A-2A L H 6-E
1167M076AB
Sleeve/MagnetRoller
1st Toner ConveyingRoller
1171M027AA
4011M019AA
PC Drum
/Magnet Roller
Developing Bias Terminal
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
13-3. ATDC Sensor The ATDC Sensor detects the toner-to-carrier ratio (T/C) of the developer in the Devel-
oper Mixing Chamber.1. An LED emits infrared rays to toner.2. There is a phototransistor that converts the intensity of the light reflected off the toner to
a corresponding voltage value and outputs it.3. T/C is determined based on the output voltage value.
(1) ATDC Sensor Automatic Adjustment The reference value for the ATDC Sensor is automatically adjusted as detailed below
using the ATDC Sensor Automatic Adjustment mode.
(2) Toner Replen While the I/C Moto
ings, the copier pro
Toner replenishmeMotor.
T/C (%)More than 19
14 to 19
13 to 14
12 to 13
10 to 12
7 to 10Less than 7
Install a new I/C. Th
The developer is mi
The ATDC Sensor cand outputs it.
Does the output vol
YESThe voltage input tothe Master Board atreference voltage.M-24
ishing Controlr is turning, the ATDC Sensor samples T/C and, according to the read-vides the following controls.
nt represents the operation of the Sub Hopper Toner Replenishing
Sampling Data (V) Control DetailsLess than 1.41 Defective ATDC Sensor
2.32 to 1.41 Toner replenished for 0 ms.
2.50 to 2.32 Toner replenished for 54 ms at intervalsof approx. 1 s.
2.68 to 2.50 Toner replenished for 150 ms at intervalsof approx. 1 s.
3.10 to 2.68 Toner replenished for 378 ms at intervalsof approx. 500 ms.
3.92 to 3.10 Passed onto the T/C recovery mode.More than 3.92 Defective ATDC Sensor
The voltage input to the ATDC Sensorfrom the Master Board is varied.2.55 V or more: Decrease the voltage.2.45 V or less: Increase the voltage.
is sets the copier into the ATDC Sensor Automatic Adjustment mode.
xed.
onverts the reference T/C (14 %) to a corresponding voltage value
tage fall within the range from 2.46 to 2.54 V?
NOthe ATDC Sensor fromthis time is fixed as the
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
(3) Toner Empty Control (T/C Recovery Mode) When control is passed onto the T/C recovery mode, the Sub Hopper Toner Replenish-
ing Motor is energized to replenish the supply of toner into the Developing Unit. If T/C isnot recovered to a level of 13 % or higher (2.50 V or less) within a given period of time, atoner-empty condition results.
Given period of time: 35-cpm copier = 150 s; 25/20-cpm copier = approx. 209 s 20-cpm copier: U.S.A. and Canada OnlyM-25
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
13-4. Toner Bottle Home Position Detection Mechanism The Toner Bottle Home Position Sensor detects the Toner Bottle at its home position.
When the Toner Bottle is at the home position (stationary), its toner supply port shouldface up.
13-5. Toner B When the dents in
Toner Bottle is vibrbottle.
Electrical ComponPC10
Toner Bottle HomeSensor PC10M-26
ottle Vibration Mechanismthe Toner Bottle move past the protrusion of the Bottle Holder, theated to prevent some of the toner from remaining unconsumed in the
ent Control Signal Activated Deactivated Wiring DiagramPJ15A-4B L H 4 to 5-F
4011M004AA
Position
1139M029AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
13-6. Main Hopper Toner Replenishing Mechanism The Main Hopper Toner Replenishing Motor gives the drive for supplying toner from the
Toner Bottle to Sub Hopper. Toner is replenished each time the Sub Hopper Toner Empty Switch (S4) provided in the
Sub Hopper is actuated and deactuated.
Electrical Compon
M6S4
Toner Bottle
Main Hopper TonerReplenishM-27
ent Control Signal Energized/ActuatedDeenergized/Deactuated Wiring Diagram
PJ15A-1B L H 5-FPJ3A-15B L H 5-H
4011M020AA
ing Motor M6
Sub Hopper
Sub Hopper Toner EmptySwitch S4
Magnet
1171M021AA
Sub Hopper
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
13-7. Sub Hopper Toner Replenishing Mechanism The Sub Hopper Toner Replenishing Motor replenishes toner from the Sub Hopper to the
Developer Mixing Chamber. The toner replenishing time is determined according to the T/C reading.
13-8. Sub Hop If T/C is not recove
copier has entered Given period of tim If T/C drops below
dition has been decopier displays the
20-cpm copier: U.S
Electrical ComponM7M-28
per Toner Empty Detection Controlred to a level of 13 % or higher within a given period of time after thethe T/C recovery mode, a toner-empty condition is detected.e: 35-cpm copier = 150 s; 25/20-cpm copier = approx. 209 s7 % as a result of making additional copies after the toner-empty con-tected of the Sub Hopper, a defective ATDC Sensor results and thecorresponding malfunction code..A. and Canada Only
ent Control Signal Energized Deenergized Wiring DiagramPJ3A-14A L H 6-I
Sub Hopper
Sub Hopper Toner Replenishing Motor M74011M005AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
14. PAPER TAKE-UP/FEED SECTION
14-1. 1st Draw When the 1st Draw
the drawer blockshas been slid into
Electrical ComponPC6
Paper Size DetectingBoard PWB-I
Paper Take-Up Roll
Paper Size DetectingSensor (CD) S5
Ligh
1st DM-29
er-in-Position Detectioner is slid into the copier, the light blocking plate located in the rear of
the 1st Drawer Set Sensor and the copier determines that the drawerposition.
ent Control Signal Activated Deactivated Wiring DiagramPJ3A-5B L H 6-H
4011M006AC
t Blocking Plate
4011M007AB
rawer Set Sensor PC6
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
14-2. 1st Drawer Paper Empty Detection The 1st Drawer Paper Empty Sensor detects a paper-empty condition. When a paper-empty condition is detected (sensor is blocked), the Paper Level LED
lights up.
14-3. 1st Draw The 1st Drawer Pa When a paper nea
starts blinking. A pused after the pap
Electrical ComponPC4
Electrical ComponPC5
1st Drawer Paper EmptySensor PC4
1st DrEmptyM-30
er Paper Near-Empty Detectionper Near Empty Sensor detects a paper near-empty condition.r-empty condition is detected (sensor is blocked), the Paper Level LEDaper-empty condition results when about 50 more sheets of paper areer near-empty condition has been detected.
ent Control Signal Activated Deactivated Wiring DiagramPJ15A-14A L H 6-E
ent Control Signal Activated Deactivated Wiring DiagramPJ3A-2B L H 6-H
1167M073ADEmpty Lever
4011M026AB
awer Paper NearSensor PC5
Near-Empty Lever
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
14-4. 1st Drawer Paper Lifting Plate The Paper Lifting Plate installed in the 1st Drawer is spring-loaded to push the paper
stack upward. When the drawer is slid into the copier, the lever that locks down the Paper Lifting Plate is
pushed and unlocked, allowing the Paper Lifting Plate to push the paper stack upward.
14-5. 1st Draw The Paper Size De
Size Detecting Sen A lever is connecte
connected to the EPaper Size DetectThe combination osensor determines
Paper Lifting
Paper SizSensor (CM-31
er Paper Size Detectiontecting Board detects the length of the paper (FD), while the Papersor (CD) detects the width of the paper (CD).d to the Trailing Edge Stop of the 1st Drawer, while another lever isdge Guide of the drawer. These levers activate and deactivate the
ing Sensor (CD), and the switches on the Paper Size Detecting Board.f ON or OFF, or activated or deactivated, condition of each switch andthe paper size.
Plate
Lever
1167M080AA
1 2 3 4
Paper Size Detecting Board PWB-Ie DetectingD) S5
4011M009AA
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
(1) Paper Size Table According to Sensor/Switch Conditions
Paper Size Detecting Board PWB-IS5 Paper Size
1 2 3 4H L L L L A3LL L L L L 11 14 LL L L L H B4C, Folio, Legal LL L L H H FLS, G. Legal LL H H H H A4C
H H B5L, Letter L, G. Letter L,
H HH HH HH HH LL H
Electrical ComponPWB-I (1)PWB-I (2)PWB-I (3)PWB-I (4)
S5M-32
H H H Executive L, 8 10 LH L L Letter CH L H Invoice LL L L A4C, G. Letter C, 8 10 CL L H A5LL H H B5C, B6L, Executive CL L H A5C, A6L, Invoice C
ent Control Signal Activated Deactivated Wiring DiagramPJ15A-6B L H 6-FPJ15A-7B L H 6-FPJ15A-8B L H 6-FPJ15A-9B L H 6-FPJ3A-8B L H 6-H
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
14-6. Drawer Paper Take-Up Mechanism(1) Paper Separating Mechanism The coefficient of friction between the Paper Take-Up Roll and Separator Pad is effec-
tively used to prevent double feed of paper.
When one sheet of paperis taken up
: The coefficient of friction on the front side of the sheet ofpaper taken up and fed through the space between thePaper Take-Up Roll and Separator Pad is the same as thaton the backside of the sheet of paper, allowing the paper tobe properly fed into the copier.
When two or more sheetsof paper are taken u
: The coefficient of friction between the paper and the Sepa-
Paper TakeM-33
p rator Pad is greater than that between the sheets of paper,which allows only the top sheet of paper to be fed into thecopier.
-Up Roll
Separator Pad
1167M054AB
Paper
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
14-7. Drawer Paper Take-Up Control(1) Paper Take-Up Roll Drive from the Main Motor is transmitted via a gear train to the Paper Take-Up Clutch
(spring clutch). The Paper Take-Up Roll is turned when the 1st Drawer Paper Take-UpSolenoid is then energized.
(2) Paper Take-Up To minimize the oc
rarily halted and areach the Synchroup sequence has b
(3) Paper Take-Up To minimize the oc
interval between twtype and size of pa
Electrical ComponSL1
Paper Take-U
Main Motor M2
Paper Take-Up Clutch
1st DM-34
Retry Controlcurrence of a paper misfeed, the paper take-up sequence is tempo-paper take-up retry sequence is initiated if the sheet of paper does notnizing Roller Sensor within a given period of time after the paper take-een started. This sequence is repeated a given number of times.
Interval Controlcurrence of a paper misfeed due to improper paper separation, theo paper take-up sequences is automatically varied according to theper being used.
ent Control Signal Energized Deenergized Wiring DiagramPJ3A-13B L H 5-H
Given No. of Paper Take-UpRetry Sequences
p Retry 2
4011M022AA
Paper Take-Up Roll
rawer Paper Take-Up Solenoid SL1
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
(4) Double Feed Paper Take-Up Control (35-cpm copier only) The following control is provided to minimize the occurrence of a paper misfeed due to
double feed. If the Double Feed Detecting Board detects a sheet of paper, the copierretards the start of paper take-up sequence for the subsequent sheet of paper a period oftime equivalent to about 10 mm.
Electrical ComponPWB-H
Paper Take-Up RollM-35
ent Control Signal Activated Deactivated Wiring DiagramPJ4A-2 L H 6-G
Double Feed DetectingBoard PWB-H
4011M010AA
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
15. MANUAL BYPASS TRAY
15-1. Manual Drive from the Mai
Up Roll when the M
15-2. Manual The Manual Feed
of the Manual Byp
Electrical ComponCL2
Electrical ComponPC8
Main Motor M2
Manual Feed Paper Take-Up Roll
Manual Feed P
Manual Feed Paper Take-Up Clutch CL2
When Pa
Manual Feed PaperTake-Up Sensor PCM-36
Bypass Paper Take-Up Controln Motor is transmitted via a gear train to the Manual Feed Paper Take-
anual Feed Paper Take-Up Clutch is energized.
Bypass Paper Empty DetectionPaper Take-Up Sensor is used for detecting a paper-empty conditionass Tray.
ent Control Signal Energized Deenergized Wiring DiagramPJ2A-9A L H 4-I
ent Control Signal Activated Deactivated Wiring DiagramPJ2A-7B L H 4-H
4011M023AB
aper Take-Up Sensor PC8
Manual Bypass Tray
1167M086AA 1167M085AA
per is Present When Paper is not Present
8
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
16. SYNCHRONIZING ROLLERS The Synchronizing Rollers synchronize the timing of the exposure section (PH) with that
of the paper transport section.
16-1. Paper D Paper dust attracte
ferred onto the Pap
SynchronizingClutch CL1
Paper Dust RemoM-37
ust Removerd from the paper to the surface of the Synchronizing Roller is trans-er Dust Remover.
Synchronizing Roller
4011M018AA
1171M026AB
ver
Synchronizing Roller
Synchronizing Roller Sensor PC2
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
16-2. Synchronizing Roller Drive Mechanism Drive for the Synchronizing Rollers is provided by the Main Motor through the Synchro-
nizing Clutch.
Electrical ComponCL1
Main Motor M2
Synchronizing Clutch CL1M-38
ent Control Signal Energized Deenergized Wiring DiagramPJ3A-2A L H 5-I
Synchronizing Roller1167M064AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
17. IMAGE TRANSFER AND PAPER SEPARATIONImage Transfer A charge is applied to the Image Transfer Roller to transfer the toner image formed on the
surface of the PC Drum onto the paper. To ensure that image transfer efficiency is stabilized, the image transfer current is auto-
matically varied according to the paper size, paper type, and the B/W ratio of the original. To prevent toner from sticking to the Image Transfer Roller, a negative image transfer
voltage is applied to the roller.Paper Separation To neutralize any charge left on the paper, to which the image has been transferred, a
negative voltage is applied to the Charge Neutralizing Plate.
17-1. PC Drum The PC Drum Pap
the PC Drum to en
Electrical ComponImage Transfer Out
PC Dru
Image Transfer R
PC Drum
PC DrumM-39
Paper Separator Fingerser Separator Fingers mechanically separate paper from the surface ofsure good and positive paper separation.
ent Control Signal ON OFF Wiring Diagramput PJ15A-5/6A L H 6-E
m
Charge Neutralizing Plate
oller 4011M012AA
PC Drum Paper Separator Fingers
Protective Shutter4011M013AA
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
18. PC DRUM CLEANING The Cleaning Blade is used to scrape residual toner off the surface of the PC Drum. The spent toner is conveyed by Spent Toner Feed Rollers 1 and 2 to the Recycling Duct
and eventually back to the Developer Mixing Chamber. To prevent paper dust from being compacted on the edge of the Cleaning Blade, the PC
Drum is turned backward as soon as a copy cycle is completed if the drum has beendriven for more than a given period of time.
Given period of time: 35-cpm copier = 170 s; 25/20-cpm copier = 240 s 20-cpm copier: U.S.A. and Canada Only
Cleaning B
Spent Toner Feed
Spent TonerRecycling CoilM-40
1171M015AA
lade
PC Drum
1171M016AA
Toner ConveyingRollers
Recycling Duct
Spent Toner Feed Roller 1
Roller 2
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
19. ERASE LAMP Any potential remaining on the surface of the PC Drum is neutralized by both light from
the Erase Lamp and a negative voltage applied by the Charge Neutralizing Sheet. The Charge Neutralizing Sheet applies a negative charge on the surface of the PC Drum
which is positively charged by the Image Transfer Roller. The Erase Lamp then illumi-nates the surface of the PC Drum to further neutralize it.
Electrical ComponLA1
Erase Lamp LA1
PC Dru
Sleeve/M
Erase LampM-41
ent Control Signal All lamps ON Standby ON Wiring DiagramPJ10A-7 L H 8-F
1171M009AD
I/C
PC Drum
1171M010AD
PC Drum
m Charge Corona
agnet Roller
(LA1)
Charge Neutralizing Sheet
Cleaning Blade
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
20. FUSING UNIT The heat and pressure applied by the Fusing Rollers to the paper fixes the image perma-
nently to the paper.
1. Paper Exit Rolle2. Fusing Unit Pres3. Fusing Transpor4. Paper Exit Sens5. Fusing Paper Se
1
4
32
9
10M-42
rsure Levert Rolleror PC3parator Finger
6. Right Fusing Roller7. Fusing Roller Heater Lamp H18. Left Fusing Roller9. Fusing Roller Thermostat TS110. Fusing Paper Separator Finger
4011M014AB7
6
8
5
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
20-1. Fusing Unit Drive Mechanism Drive from the Main Motor is transmitted via a gear train to the Left Fusing Roller.
Electrical ComponM2
Main Motor M2
Left Fusing RollerM-43
ent Control Signal Energized Deenergized Wiring DiagramPJ5A-1 L H 4 to 5-F
4011M017AB
Paper Exit Roller
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
20-2. Fusing Temperature Control The Fusing Roller Heater Lamp is turned ON and OFF so that the surface temperature of
the Fusing Roller is maintained at a preset temperature. The surface temperature of the Fusing Roller is detected by converting the temperature
read by the thermistor to a corresponding electrical signal. When the temperature of the Fusing Roller rises to an abnormally high level, power to the
Fusing Roller Heater Lamp is shut down.
Temperature reach35-cpm copier = 1
Temperature is inc 20-cpm copier: U.S
(1) Temperature C
20-3. CPM Co If special paper of
cycle, the temperapaper passes) tendfeed interval is ma
CPM control is actsize, as counted w
If no special papermore, the counter
StandbyPlain paper(width 251 mm or mPlain paper(width 250 mm or le2-sided modeSpecial paperOHP transparencies
- Temperature Control During Standby State -
200 C185M-44
ed upon completion of warm-up cycle:90 C; 25/20-cpm copier = 183 Creased to 200 C after the warm-up cycle has been completed..A. and Canada Only
ontrol Table during Standby State and Copy Cycle
ntrola small size (width of 250 mm or less) is used to run a multi-copyture on the edges of the Fusing Rollers (over which no part of thes to run high, which can damage the copier. To prevent this, the paper
de greater.ivated when the number of copies made on special paper of the smallith an internal counter, exceeds 30.of the small size is fed through the copier for a period of 2 min. or
is cleared, canceling CPM control.
Paper Mode 1 Mode 2 Mode 3200 C 185 C 185 C
ore)1-sided
35-cpm copier 190 C 170 C 170 C25/20-cpm copier 183 C 170 C 170 C
ss)35-cpm copier 185 C 170 C 170 C
25/20-cpm copier 183 C 160 C 160 C200 C 180 C 180 C210 C 200 C 200 C155 C 155 C 155 C
C
5 min. 1 min.
Mode 1 Mode 2 Mode 3
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
21. PAPER EXIT UNIT The paper exit unit feeds the paper, which has been transported from the Fusing Unit,
out of the copier. The Charge Neutralizing Brush touches the surface of the sheet of paper being fed out to
neutralize any static charge left on it.
Charge Neutralizing BrushM-45
Paper Exit Roller
4011M027AA
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
22. OTHER UNITS AND MECHANISMS22-1. Memory Backup IC3 mounted on the Master Board (PWB-A) stores the values set and adjusted with the
Tech. Rep. Mode and other functions, as well as counter values. When replacing PWB-A,therefore, it is necessary to remount IC3.
NOTE When replacing PWB-A (Master Board), care should be used not to change IC3 together
with the board.
For details, see DIS/REASSEMBLY, ADJUSTMENT.
22-2. Flash M To respond to the
controller.M-46
emoryneed of upgrading software, data is written in flash memory using the
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
22-3. Interior Cooling Mechanism(1) I/C Cooling Mechanism A fan motor is used to blow outside air against the I/C, thereby preventing low ID and a
foggy background from occurring due to an increased temperature of the developer.
Electrical ComponM9
I/C
I/C CM-47
ent Control Signal Energized Deenergized Wiring DiagramPJ15A-13B L H 6-F
1171M032ABooling Fan Motor M9
FrameMaker Ver5.5E(PC)Di251/Di351 MECHANICAL/ELECTRICAL05.03.01
(2) Fusing Section Cooling Mechanism A fan motor draws air from the area around the Fusing Unit to the outside to prevent the
copier interior temperature from running high.
Electrical ComponM3
Fusing UnitM-48
ent Control Signal Energized Deenergized Wiring DiagramPJ3A-3A L H 5-I
Cooling FanMotor M3
4011M015AA
FrameMaker Ver5.5E(PC) Di251/Di351 MECHANICAL/ELECTRICAL.05.03.01
(3) Power Supply Section Cooling Mechanism A fan motor draws air from the area around the Power Supply Unit to the outside to pre-
vent the temperature of the unit from running high.
Electrical ComponM4
Power Unit CoolFan Motor M4M-49
ent Control Signal Energized Deenergized Wiring DiagramPJ10A-1 L H 8-F
4011M016AAPower Supply Unit PU1
ing
FrameMaker Ver5.5E(PC) COVER [GENERAL] FOR Di251/Di35105.03.01
Copyright2001 MINOLTA ME GmbH
Printed in Germany
Use of this manual shouldbe strictly supervised toavoid disclosure ofconfidential information.
MINOLTA ME GmbH 4011-7990-11
FrameMaker Ver5.5E(PC) COVER [FIELD SERVICE] FOR Di251/Di35105.03.01
Di251 / Di351
SERVICE MANUAL
[FIELD SERVICE]
4011-7991-11
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
Safety Precautions for Inspection and ServiceWhen performing inspection and service procedures, observe the following precautions toprevent accidents and ensure utmost safety.
Depending on the model, some of the precautions given in the following do not apply.
1. Always observe precautions.
2. Before starting th
3. Use the specified
4. Handle the powe
5. Be careful with th
6. Do not work with
WARNING
Parts requiring special attention in this product will include a label containing themark shotions.
Be sure to
This prodcapacity t
The produ If this pro
blindness
For replacturers patric breakelectric sh
Replace apart specmake or rthe tempeto elimina
Do not brobject onpossible f
Do not usnected.
Be sure th
A part maing it coulbefore se
Do not uninspectionP-1
e procedures, be sure to unplug the power cord.
parts.
r cord with care and never use a multiple outlet.
e high-voltage parts.
wet hands.
wn on the left plus precautionary notes. Be sure to observe the precau-
observe the Safety Information given in the Operators Manual.
uct contains a high-voltage unit and a circuit with a large currenthat may cause an electric shock or burn.ct also contains parts that can jerk suddenly and cause injury.
duct uses a laser, laser beam leakage may cause eye damage or.
ement parts, always use the genuine parts specified in the manufac-rts manual. Installing a wrong or unauthorized part could cause dielec-down, overload, or undermine safety devices resulting in possibleock or fire.blown electrical fuse or thermal fuse with its corresponding genuine
ified in the manufacturers parts manual. Installing a fuse of a differentating could lead to a possible fire. If a thermal fuse blows frequently,rature control system may have a problem and action must be takente the cause of the problem.
eak, crush or otherwise damage the power cord. Placing a heavythe power cord, or pulling or bending it may damage it, resulting in aire or electric shock.e a multiple outlet to which any other appliance or machine is con-
e power outlet meets or exceeds the specified capacity.
rked with the symbol shown on the left carries a high voltage. Touch-d result in an electric shock or burn. Be sure to unplug the power cordrvicing this part or the parts near it.
plug or plug in the power cord, or perform any kind of service orwith wet hands. Doing so could result in an electric shock.
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
7. Do not touch a high-temperature part.
8. Maintain a grounded connection at all times. (This item may not apply in the USA.)
9. Do not remodel t
10. Restore all parts
A part marked with the symbol shown on the left and other parts such as theexposure lamp and fusing roller can be very hot while the machine is energized.Touching them may result in a burn.
Wait until these parts have cooled down before replacing them or any surround-ing parts.
Be sure to connect the ground wire to the ground terminal even when perform-ing an inspection or repair. Without proper grounding, electrical leakage couldresult in an electric shock or fire.
Never connect the ground wire to a gas pipe, water pipe, telephone ground wire,or a lightn
Modifyingresult in amay caus
To promoreturned tdles in orcrushed.
To promoreturned ton the cirP-2
he product.
and harnesses to their original positions.
ing conductor.
this product in a manner not authorized by the manufacturer mayfire or electric shock. If this product uses a laser, laser beam leakage
e eye damage or blindness.
te safety and prevent product damage, make sure the harnesses areo their original positions and properly secured in their clamps and sad-der to avoid hot parts, high-voltage parts, sharp edges, or being
te safety, make sure that all tubing and other insulating materials areo their original positions. Make sure that floating components mountedcuit boards are at their correct distance and position off the boards.
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
1. Precautions for Service Jobs
2. Precautions for S
3. Precautions for th
4. Precautions for H
CAUTION
A toothed washer and spring washer, if used originally, must be reinstalled.Omitting them may result in contact failure which could cause an electric shockor fire.
When reassembling parts, make sure that the correct screws (size, type) areused in the correct places. Using the wrong screw could lead to strippedthreads, poorly secured parts, poor insulating or grounding, and result in a mal-function, electric shock or injury.
Take great care to avoid personal injury from possible burrs and sharp edges onthe parts,
When moback or a
Whereverproduct.
If energiztouch anycaught in
Never plafalling intoshock or
Never use Make sur
boards or Always us
a cover ismay damshock, inj
The produ Never pla
servicing. Provide g
confined Avoid dus Avoid wor
Replace aturers pa
Before instion or the
Dispose othem at thP-3
ervicing with Covers and Parts Removed
e Working Environment
andling Batteries (Lithium, Nickel-Cadmium, etc.)
frames and chassis of the product.ving the product or removing an option, use care not to injure yourllow your hands to be caught in mechanisms.
feasible, keep all parts and covers mounted when energizing the
ing the product with a cover removed is absolutely unavoidable, do notexposed live parts and use care not to allow your clothing to bethe moving parts. Never leave a product in this condition unattended.ce disassembled parts or a container of liquid on the product. Parts, or the liquid spilling inside, the mechanism could result in an electric
fire.a flammable spray near the product. This could result in a fire.
e the power cord is unplugged before removing or installing circuitplugging in or unplugging connectors.e the interlock switch actuating jig to actuate an interlock switch whenopened or removed. The use of folded paper or some other object
age the interlock switch mechanism, possibly resulting in an electricury or blindness.
ct must be placed on a flat, level surface that is stable and secure.ce this product or its parts on an unsteady or tilting workbench when
ood ventilation at regular intervals if a service job must be done in aspace for a long period of time.ty locations and places exposed to oil or steam.king positions that may block the ventilation ports of the product.
rundown battery with the same type as specified in the manufac-rts manual.talling a new battery, make sure of the correct polarity of the installa-battery could burst.f used batteries according to the local regulations. Never dispose ofe users premises or attempt to try to discharge one.
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
5. Precautions for the Laser Beam (Only for Products Employing a Laser)
When handling cir The PC Drum is a
DLING OF THE P Note that replacem
ular items, or softw
Removing the cover marked with the following caution label could lead to possi-ble exposure to the laser beam, resulting in eye damage or blindness. Be sureto unplug the power cord before removing this cover.
If removing this cover while the power is ON is unavoidable, be sure to wearprotective laser goggles that meet specifications.
Make sure that no one enters the room when the machine is in this condition. When handling the laser unit, observe the Precautions for Handling Laser
Equipment.P-4
cuit boards, observe the HANDLING of PWBs.very delicate component. Observe the precautions given in HAN-
C DRUM because mishandling may result in serious image problems.ent of a circuit board may call for readjustments or resetting of partic-are installation.
DANGERInvisible laser radiation when open.AVOID DIRECT EXPOSURETO BEAM
0947-7127-01
1144D270AA
1167P001AA
Other Precautions
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
ALL AreasCAUTION
Danger of explosion if battery is incorrectly replaced.Replace only with the same or equivalent type recommended by the manufacturer.Dispose of used batteries according to the manufacturers instructions.
GermanyVORSICHT!
Explosionsgefahr bei unsachgemem Austausch der Batterie.Ersatz nur durch denEntsorgung gebrauc
France
Ily a danger dexplosRemplacer uniquememande par le construMettre au rebut les b
Denmark
Lithiumbatteri - Ekspteri af samme fabrikaLevr det brugte batt
Norway
Eksplosjonsfare vedBenytt samme batterBrukte batterier kass
Sweden
Explosionsfara vid feAnvnd samma battetillverkaren.Kassera anvnt batte
Finland
Paristo voi rjht,Vaihda paristo ainoavalmistajan ohjeiden
Used Batteries PrecautionsP-5
selben oder einen vom Hersteller empfohlenen hnlichen Typ.hter batterien nach Angaben des Herstellers.
ATTENTIONion sily a remplacement incorrec de la batterie.nt avec une batterie du meme type ou dun type quivalent recom-ctueur.atteries usages conformment aux instructions du fabricant.
ADVARSEL!losionsfare ved fejlagtig hndtering Udskiftning m kun ske med bat-t og type.eri tilbage til leverandren.
ADVARSELfeilaktig skifte av batteri.itype eller en tilsvarende type anbefalt av apparatfabrikanten.eres i henhold til fabrikantens instruksjoner.
VARNINGlaktigt batteribyte.rityp eller en ekvivalent typ som rekommenderas av apparat-
ri enligt fabrikantens instruktion.
VAROlTUSlos se on virheellisesti asennettu.staan laitevalmistajan suosittelemaan tyyppiin. Hvit Kytetty paristomukaisesti.
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
Precautions for ServiceWhen performing inspection and service procedures, observe the following precautions toprevent mishandling of the machine and its parts. Depending on the model, some of the precautions given in the following do not apply.
When the user is using a word processor or personal computer from a wall outlet of thesame line, take necessary steps to prevent the circuit breaker from opening due to over-loads.
Never disturb the LAN by breaking or making a network connection, altering termination,installing or removdevices without thethe shop superviso
1. DIS/REASSEMB To reassemble the2. TROUBLESHOO If a component on
text only instructs ybleshooting proced
All troubleshootingharnesses and cor
The procedures pr
Check the area surepair.
Keep all disassembe lost or damage
After completing aand screws are ret
Do not pull out thedamaged motor or
If the product is tothe locked position
Do not use an air gsors, as they can ccontaining these s
Precautions Before ServiceP-6
ing networking hardware or software, or shutting down networkedknowledge and express permission of the network administrator or
r.
LY, ADJUSTMENTproduct, reverse the order of disassembly unless otherwise specified.TINGa PWB or any other functional unit including a motor is defective, theou to replace the whole PWB or functional unit and does not give trou-ures applicable within the defective unit.procedures contained herein assume that there are no breaks in theds and all connectors are plugged into the right positions.eclude possible malfunctions due to noise and other external causes.
rrounding the service site for any signs of damage, wear or need of
bled parts in good order and keep tools under control so that none willd.service job, perform a safety check. Make sure that all parts, wiringurned to their original positions.toner hopper while the toner bottle is turning. This could result in alocking mechanism.be run with the front door open, make sure that the toner hopper is in.
un or vacuum cleaner for cleaning the ATDC Sensor and other sen-ause electrostatic destruction. Use a blower brush and cloth. If a unitensors is to be cleaned, first remove the sensors from the unit.
How to Use this Book
Precautions for Service
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
Be sure to unplug the copier from the outlet before attempting to service the copier. The basic rule is not to operate the copier anytime during disassembly. If it is absolutely
necessary to run the copier with its covers removed, use care not to allow your clothing tobe caught in revolving parts such as the timing belt and gears.
Before attempting to replace parts and unplug connectors, make sure that the powercord of the copier has been unplugged from the wall outlet.
Be sure to use the Interlock Switch Actuating Jig whenever it is necessary to actuate theInterlock Switch with the covers left open or removed.
While the product is energized, do not unplug or plug connectors into the circuit boardsor harnesses.
Never use flamma A used battery sho
carded casually or When reassemblin
washer are used in If it becomes nece
board, be sure to umarked on the fuschange without no
Never create a cloon the printed circ
When creating a cin the text, be sure
Precautions for Dis/ReassemblyP-7
ble sprays near the copier.uld be disposed of according to the local regulations and never be dis-left unattended at the users premises.g parts, make sure that the correct screws (size, type) and toothedthe correct places.
ssary to replace the thermal fuse or any other fuse mounted on ase one of the rating marked on the blown fuse. Always note the rating
e, as the rating and mounting site or number used are subject totice.
sed circuit across connector pins except those specified in the text anduit.losed circuit and measuring a voltage across connector pins specifiedto use the GND wire.
Precautions for Circuit Inspection
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
1. During Transportation/Storage: During transportation or when in storage, new P.W. Boards must not be indiscriminately
removed from their protective conductive bags. Do not store or place P.W. Boards in a location exposed to direct sunlight and high tem-
perature. When it becomes absolutely necessary to remove a Board from its conductive bag or
case, always place it on its conductive mat in an area as free as possible from static elec-tricity.
Do not touch the pins of the ICs with your bare hands. Protect the PWBs from any external force so that they are not bent or damaged.
2. During Inspection Avoid checking the Never create a clo Before unplugging
been unplugged fr When removing a
pins of the ICs or tBoard.
When touching theplace whenever pocharge static elect
Note that replacemitems.
The magnet rollerdisk, magnetic car
Handling of PWBsP-8
/Replacement:IC directly with a multimeter; use connectors on the Board.
sed circuit across IC pins with a metal tool.connectors from the P.W. Boards, make sure that the power cord has
om the outlet.Board from its conductive bag or conductive case, do not touch thehe printed pattern. Place it in position by holding only the edges of the
PWB, wear a wrist strap and connect its cord to a securely groundedssible. If you cannot wear a wrist strap, touch a metal part to dis-ricity before touching the PWB.ent of a PWB may call for readjustments or resetting of particular
generates a strong magnetic field. Do not bring it near a watch, floppyd, or CRT tube.
Handling of Other Parts
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
Only for Products Not Employing an Imaging Cartridge.1. During Transportation/Storage: Use the specified carton whenever moving or storing the PC Drum. The storage temperature is in the range between 20C and +40C. In summer, avoid leaving the PC Drum in a car for a long time.
2. Handling: Ensure that the correct PC Drum is used. Whenever the PC Drum has been removed from the copier, store it in its carton or protect
it with a Drum Cloth. The PC Drum exh
extended period o Use care not to co
prints, and other fo Do not scratch the Do not apply chem Do not attempt to
If, however, the surfadure.
Handling of the PC DrumP-9
ibits greatest light fatigue after being exposed to strong light over anf time. Never, therefore, expose it to direct sunlight.ntaminate the surface of the PC Drum with oil-base solvent, finger-reign matter.surface of the PC Drum.icals to the surface of the PC Drum.
wipe clean the surface of the PC Drum.
ce is contaminated with fingerprints, clean it using the following proce-
1. Place the PC Drum into one half of its carton.
1076D001
2. Gently wipe the residual toner off the surface of thePC Drum with a dry, Dust-Free Cotton Pad.
A. Turn the PC Drum so that the area of its surface onwhich the line of toner left by the Cleaning Blade ispresent is facing straight up. Wipe the surface inone continuous movement from the rear edge ofthe PC Drum to the front edge and off the surfaceof the PC Drum.
B. Turn the PC Drum slightly and wipe the newlyexposed surface area with a CLEAN face of theDust-Free Cotton Pad. Repeat this procedure untilthe entire surface of the PC Drum has been thor-oughly cleaned.
At this time, always use a CLEAN face of the dryDust-Free Cotton Pad until no toner is evident on theface of the Pad after wiping.
1076D002
FrameMaker Ver.5.5E(PC) PL/PS Standard Document Ver.0105.03.01
NOTES Even when the PC Do not expose the
interior illumination If dirt remains afte
time.
Only for Products1. During Transport The storage tempe In summer, avoid l
2. Handling: Store the Imaging
3. Precautionary Inf Use care not to co
prints, and other fo Do not scratch the Do not attempt to
3. Soak a small amount of either ethyl alcohol or iso-propyl alcohol into a clean, unused Dust-Free Cot-ton Pad which has been folded over into quarters.Now, wipe the surface of the PC Drum in one con-tinuous movement from its rear edge to its frontedge and off its surface one to two times.
Never move the Pad back and forth.
1076D003
4. Using the SAME face of the Pad, repeat the proce-dure explained in the latter half of step 3 until theP-10
Drum is only locally dirtied, wipe the entire surface.PC Drum to direct sunlight. Clean it as quickly as possible even under.
r cleaning, repeat the entire procedure from the beginning one more
Employing an Imaging Cartridge.ation/Storage:rature is in the range between 20C and +40C.
eaving the Imaging Cartridge in a car for a long time.
Cartridge in a place that is not exposed to direct sunlight.
ormation on the PC Drum Inside the Imaging Cartridge:ntaminate the surface of the PC Drum with oil-base solvent, finger-reign matter.surface of the PC Drum.
wipe clean the surface of the PC Drum.
entire surface of the PC Drum has been wiped.Always OVERLAP the areas when wiping. Twocomplete turns of the PC Drum would be appropri-ate for cleaning.
1076D004
Handling of the Imaging Cartridge
FrameMaker Ver.5.5(PC) Di200/Di251/Di35101.02.02
INDEX (FIELD SERVICE)
DIS/REASSEMBLY,ADJUSTMENT
SWITCHES ON PWBs,TECH. REP. SETTINGS
TROUBLESHOOTING
INSTALLATION
right
Allg
emei
n