P10511: Miniaturization of Xerography

Derek Meinke (ME, PM)Matthew Liff (ME)

Tony Zhang (EE)Zaw Htoo (ISE)

Where We AreOn schedule!

Full understanding of Customer Needs

Project Plan and Gannt Chart

Risk Assessment

Began process of Concept Generation

Long Awaited Team Logo

AMORFIX - A Morphing Fixture for Photoreceptor Charge Testing

Team’s House of Quality

Customer RequirementsCustomer Weights

Voltage Input

(5-8kV)

Surface

Speed

(≤1m/s)

Drum Size (24-84m

m)

Charger

Type (BCR

or Scorotron)

Charger

Gap (1-

2mm)

Dielectric

Thickness (~25

µm)

ESV dista

nce (1-

2mm)

Budget

($2k)

Uniform

Erase Charge (-100V

)

Surface

Charge (-300 to -

800V)

Uniform charge distribution 14%   9 1 3 9 1 9 3 9 3

Accept multiple photoreceptor diameters 12% 1 9 9 1 9 3 9 9 9 3

Uniform pre-charge erase 12%   3 1  3 1    9 3

Allow any charge device config 11% 3 3 3 9 9 1  9 1 3

Accurate drum speed control 11% 1 9 3 3 9 3  3 9 9

Parallel ESV axis with photoreceptor 9%     3    1 9 1  9

Easily changeable components 6%     9 9 9  3 9 1 

Voltage reading across entire drum length 6%     3      3 1  1

Data for both aluminum substrate & prod. PR 6% 9 9 1  3 9 1 1 3 9

Proper safety measures 4% 9 1  1           

Generate minimal ozone 3% 9    9      1  3

Below target budget 3%   3 9 9 1  1 9  1

Allow different dielectric thicknesses 2% 1 3 3  1 9 1  3 3

Easy to use data acquisition menu 0%                    

Customer’s House of Quality

Customer Requirements Customer Weights

Voltage

Input (5-

8kV)

Surface

Speed (≤1m/

s)

Drum Size (24-

84mm)

Charger

Type (BCR

or Scorot

ron)

Charger Gap

(1-2mm)

Dielectric

Thickness

(~25µm)

ESV distance (1-2mm)

Budget ($2k)

Uniform

Erase Charg

e (-100V)

Surface

Charge (-

300 to -

800V)

Allow any charge device config 13% 3 3 3 9 9 1  9 1 3

Easily changeable components 11%     9 9 9  3 9 1 

Allow different dielectric thicknesses 11% 1 3 3  1 9 1  3 3

Voltage reading across entire drum length 9%     3      3 1  1

Parallel ESV axis with photoreceptor 8%     3    1 9 1  9

Easy to use data acquisition menu 8%                    

Repeatability 8%                    

Data for both aluminum substrate and prod. PR 8% 9 9 1  3 9 1 1 3 9

Uniform pre-charge erase 7%   3 1  3 1    9 3

Accurate drum speed control 6% 1 9 3 3 9 3  3 9 9

Proper safety measures 4% 9 1  1           

Alignment of charger with photoreceptor 4%   9 1 3 9 1 9 3 1 3

Accept multiple photoreceptor diameters 3% 1 9 9 1 9 3 9 9 9 3

Below target budget 1%   3 9 9 1  1 9  1

Generate minimal ozone 0% 9    9      1  3

What We LearnedCharge device configuration is most

important (previously 4th).

Easily interchangeable parts.

Repeatability is new customer need.

Don’t assume.

Gantt Chart

Risk AssessmentRisk Management Table - Revision 1 - 12/17/2009

ID Risk Item

Likelyhood

Severit

y

Importance Action to Minimize Risk Owner

6 Faulty equipment 2 2 4Obtain quality equipment, look into obtaining MSD locker All members

7ESV/Erase Lamp/Charger gap problems 2 2 4

Run multiple tests to determine best location, have faculty guide review fixture, make it variable Mechanical Engineer

8 Weather affecting travel 2 1 2

Have good communication, use Tortoise SVN and EDGE, online chat discussions available All members

9 Customer priority changes 1 2 2 Constant communication with customer All members

14 Hard to change components 2 3 6Create a manual, use more clips than screws Mechnaical Engineer

15Aluminum substrate is in contact with motor ground 1 3 3

Include a switch, use insulating material at contact, generate many concepts

Mechanical / Electrical Engineer

18 Lack of Labview skillset 3 2 6Additional research time, utilize faculty expertise

Industrial Systems Engineer

*19 total risks so far

Concept Generation (ME)https://edge.rit.edu/content/P10511/public/H

ome

Concept Generation (EE)Power supplies will be provided to us from

our customer, Xerox.Trek Cor-a-trol Model 610C High Voltage

Supply o High Voltage Supply (0 to ±10kV)o Current Supply (0 to 2mA rms)

Concept Generation (EE)Recommended motors and specs have also

been provided. For Photoreceptor Drive (S83-93)

For ESV slide (S57-51)

Concept Generation (ISE/EE)LabView User Interface

Input Data Output Data

Start/Stop Voltage across photoreceptor

Velocity of photoreceptor

Graph (Voltage Vs cross-sectional length of photoreceptor)

Diameter of photoreceptor

Graph (Current Vs Voltage if aluminum substrate is attached)

Type of photoreceptor (Finished or Unfinished)

Slope of the voltage across the photoreceptor

Type of Charger

Action ItemsHow much does inner diameter of

photoreceptor vary with outer diameter?

Should ESV scan speed vary with photoreceptor rotational speed?

Can power supply be turned on through LabView?

Questions?