7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
1/27
ML-2240 & ML-2245 & ML-1640 Series t rainingFebruary 2008
ML-2240 & ML-2245 & ML-1640 Series t rainingFebruary 2008
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
2/27
AgendaAgenda
1. Overview
2. Block & Connection Diagram
3. Schematic Key concept
4. Cover Open Sensing
5. Q&A
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
3/27
. Introduction
Main BoardSMPS
1-1. Overview(ML2240 & ML-2245)
HVPS
W aste Sensor( On ly ML- 224 5 )
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
4/27
. Introduction
1-2. Overview(ML1640)
Main BoardSMPS
HVPS
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
5/27
. Introduction
2. Block & Connection Diagram of ML-2240 & 2245
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
6/27
. Introduction
2-2. Block Diagram of ML-1640
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
7/27
. Introduction
3. Schematic - Key Concepts
3-1. Main PBA 1(ML-2240&2245)
Mai n Cl ock and SSCG
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
8/27
. Introduction
3-1. Main PBA 2(ML-2240&2245)
CPU Jupi t er 4e
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
9/27
. Introduction
SDRAM 8MB * 1ea
3-1. Main PBA 3(ML-2240&2245)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
10/27
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
11/27
. Introduction
Mai n Mot or Cont r ol
( BLDC)
3-1. Main PBA 5(ML-2240&2245)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
12/27
. Introduction
Fuser Cont r ol
3-1. Main PBA 6(ML-2240&2245)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
13/27
3-1. Main PBA 7(ML-2240&2245)
. Introduction
USB 1. 1
( Compat i bl e wi t h USB2. 0)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
14/27
3-1. Main PBA 8(Only ML-2245)
. Introduction
Toner Wast e- Sensor
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
15/27
. Introduction
3-2. Main PBA 1(ML-1640)
Mai n Cl ock and SSCG
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
16/27
. Introduction
3-2. Main PBA 2(ML-1640)
CPU Jupi t er 4e
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
17/27
. Introduction
SDRAM 8MB * 1ea
3-2. Main PBA 3(ML-1640)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
18/27
. Introduction
EEPROM
GroundGND
Supply VoltageVCC
Organization SelectORG
Serial Data InputDI
Serial Data OutputDO
Serial ClockSK
Chip Select InputCS
3-2. Main PBA 4(ML-1640)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
19/27
. Introduction
Mai n Mot or Cont r ol( A3983)
3-2. Main PBA 5(ML-1640)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
20/27
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
21/27
3-2. Main PBA 7(ML-1640)
. Introduction
USB 1. 1
( Compat i bl e wi t h USB2. 0)
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
22/27
II. Summary of Product
3-3. SMPS PBA
AC Input
Socket
Heat LampConnector
Main SMPSConnector
Rear Cover OpenS/W
Paper Feed Sensor
ML- 2240/ 2245
ML- 1640
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
23/27
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
24/27
Two cover open switches are near front cover & rear cover.If two switches open, 24VS2 for DC fan, main motor, polygonmotor part of LSU and high voltage of HVPS and 5VS for LSU arecut off.And Online/Error LED emits Red light.
Cut off mechanism is like below.
II. Summary of Product
4. Cover Open Sensing
SMPSMain PBA
HVPS
Near front cover
Near rear cover
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
25/27
II. Summary of Product
5-1. UI
Embody UI using RED LED & 3 color LED.
3 color LED
RED LED
Cancel KEY
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
26/27
II. Summary of Product
5-2. UI State Diplay
ML-1640 & ML-2240 UI is same.
ML-2245 UI is diferrent from ML-1640& ML-2240 UI.
Because Developer Unit of ML-2245 isseparated into Toner cartridge &Imaging Unit.
7/31/2019 ml-1640, ml-2240, ml-2241, ml-2245 general
27/27
Top Related