Derek Meinke (ME, PM) Matthew Liff (ME) Tony Zhang (EE) Zaw Htoo - - PowerPoint PPT Presentation

Derek Meinke (ME, PM) Matthew Liff (ME) Tony Zhang (EE) Zaw Htoo (ISE)

Project Description

 The scope of P10511 is to create a test fixture that will

allow the use of various charging devices along with multiple diameters of photoreceptors.

 Test affect of charge uniformity with various device

configurations and input parameters.

 Xerox test fixture is currently limited in versatility.

Project Description (cont.)

 Reasons for Reducing Drum Diameter

• Advances in Charging Technologies
• Reducing Wear Rate of Photoreceptor
• Higher Rotational Speeds for Higher PPM
• Reduced Footprint for Charging Devices
• Cost Effective
• Increased Reliability

System Objectives

 Different Charger Configurations

• BCR versus Scorotron

 Photoreceptor Diameter  Variable Drum Speed

• Ion Transfer

 Charge Measurement (ESV)

Stakeholders

 Xerox Corporation

• Faculty Guides

 Mike Zona  Bill Nowak

• Customers

 John Knapp  Dale Mashtare

• Faculty Consultant

 Marcos Esterman

 RIT KGCOE

Roles and Responsibilities

Name Discipline Role / Skills Mike Zona and Bill Nowak Xerox Faculty Guide, will work closely with the team on an on-going basis to facilitate success. Marcos Esterman Xerox Faculty Consultant, will provide discipline technical support on an intermittant basis. Dale Mashtare Xerox Industrial Consultant Derek Meinke ME Project Manager, fixture design, charge device mounting, drum to motor coupling. Matthew Liff ME Fixture design, charge device mounting, drum to motor coupling. Tony Zhang EE Electrical integration of high voltage and drive motor to data acquisition. Zaw Htoo ISE Labview coder for user interface and system control/status.

Team Values and Norms

 Reasonably late to

meetings is acceptable but not repeatable. Leave a message for a team member if cannot attend.

 At start of meeting,

discuss team objectives for 5 to 10 minutes.

 CC all group members

when emailing project information; respond within 24 hours.

 An understood consensus

must be made for all decision making.

 Record meeting minutes.

Customer Needs List

Customer Need Importance Uniform charge distribution 14% Accept multiple photoreceptor diameters 12% Uniform pre-charge erase 12% Allow any charge device configuration 11% Accurate drum speed control 11% Parallel ESV axis with photoreceptor 9% Easily changeable components 6% Voltage reading across entire drum length 6% Data for both aluminum substrate & prod. PR 6% Proper safety measures 4% Generate minimal ozone 3% Below target budget 3% Allow different dielectric thicknesses 2% Easy to use data acquisition menu 0%

Specifications List

Engineering Specification Importance Voltage Input (5-8kV) 5% Surface Speed (≤1m/s) 13% Drum Size (24-84mm) 9% Charger Type (BCR or Scorotron) 8% Charger Gap (1-2mm) 15% Dielectric Thickness (~25µm) 5% ESV distance (1-2mm) 10% Budget ($2k) 11% Uniform Erase Charge (-100V) 13% Surface Charge (-300 to -800V) 11%

House of Quality

Customer Requirements Customer Weights

Voltage Input (5-8kV) Surface Speed (≤1m/s) Drum Size (24-84mm) Charger Type (BCR or Scorotron) Charger Gap (1-2mm) Dielectric Thickness (~25µm) ESV distance (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%

Unknowns and Open Issues

 How to Attach Varying

Photoreceptor Diameters

• V-flange?

 How to Align Charger with

Photoreceptor Surface

• Dial Gauges?
• Tangency
• Parallel

 Degrees of Error

• Drum Velocity
• Surface Charge

 Labview Hardware Interface

• No Prior Experience

within Team

Concept Generation Phase

 Clarify the Problem

 Need for Interchangeability

 Internal/External Searches

 Needs and Specifications  Review Existing Model

 Systematic Exploration

 Planning

 Reflection of Product Concepts

Action Items

 Project Planning Documents  Affinity Diagram of Activities  Gantt Chart and Time Optimization  Work on Systems Design

• Specs and Risk Assessment

 Keep everything well documented in logbooks  Peer Review and EDGE website  Seek Feedback

Questions?