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 Faculty Guide, will work closely with the team on an on-going Xerox Bill Nowak basis to facilitate success. Faculty Consultant, will provide discipline technical support on Marcos Esterman Xerox an intermittant basis. Dale Mashtare Xerox Industrial Consultant Project Manager, fixture design, charge device mounting, drum Derek Meinke ME to motor coupling. Fixture design, charge device mounting, drum to motor Matthew Liff ME coupling. Electrical integration of high voltage and drive motor to data Tony Zhang EE acquisition. Zaw Htoo ISE Labview coder for user interface and system control/status.
Team Values and Norms Reasonably late to CC all group members meetings is acceptable but when emailing project not repeatable. Leave a information; respond message for a team within 24 hours. member if cannot attend. An understood consensus At start of meeting, must be made for all discuss team objectives decision making. for 5 to 10 minutes. 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 Voltage Input (5-8kV) Surface Speed ( ≤ 1m/s) Drum Size (24-84mm) Charger Type (BCR or Scorotron) Charger Gap (1-2mm) Dielectric Thickness (~25 µm) ESV distance (1-2mm) Budget ($2k) Uniform Erase Charge (-100V) Surface Charge (-300 to -800V) Customer Weights Customer Requirements Uniform charge distribution 9 1 3 9 1 9 3 9 3 14% Accept multiple photoreceptor diameters 1 9 9 1 9 3 9 9 9 3 12% Uniform pre-charge erase 3 1 3 1 9 3 12% Allow any charge device config 3 3 3 9 9 1 9 1 3 11% Accurate drum speed control 1 9 3 3 9 3 3 9 9 11% Parallel ESV axis with photoreceptor 3 1 9 1 9 9% Easily changeable components 9 9 9 3 9 1 6% Voltage reading across entire drum length 3 3 1 1 6% Data for both aluminum substrate & prod. PR 9 9 1 3 9 1 1 3 9 6% Proper safety measures 9 1 1 4% Generate minimal ozone 9 9 1 3 3% Below target budget 3 9 9 1 1 9 1 3% Allow different dielectric thicknesses 1 3 3 1 9 1 3 3 2% Easy to use data acquisition menu 0%
Unknowns and Open Issues How to Attach Varying Degrees of Error Photoreceptor Diameters Drum Velocity V-flange? Surface Charge How to Align Charger with Labview Hardware Interface Photoreceptor Surface No Prior Experience Dial Gauges? within Team Tangency Parallel
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
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