Electrophotographic Development and Transfer Station Update Week 3 Progress Report Ben Nguyen Dan Prosser Adam Regula Steve Snyder Amar Mohamed

Team Norms and Values Meeting Times ◦ Fridays: Weekly ◦ Monday 8-10 pm: Weekly ◦ Wednesdays 2-4 pm: If needed  Project Report Presentation  Finish any other deliverables Meeting Attendance ◦ Friday and Monday Meetings  Attendance is mandatory. If a team member cannot make the meeting for any reason, he should notify the rest of the team ASAP and get an update later from a team member. ◦ Wednesday meeting  All members do not necessarily have to attend, but should if possible, especially if there are outstanding deliverables. Get update from team. Ethical Concerns ◦ All work done belongs to the group and should be shared with the group. ◦ Cite sources whenever necessary in documents and presentations  Pictures  Information Decision Making ◦ Majority rule for major decisions ◦ Subsystem leads get greatest influence in decisions about their subsystems. Presentations ◦ Every group member should participate equally in the presentations.

Pairwise Comparison of Needs Subsystems FunctionalX 2Expose in Dark1X 3Improve Lifting System11X 4Visually Describe Process for observers100X 5Illustrate Operational Metrics on UI1000X 6Ease of Use10000X 7Able to test new subsystems110111X 8Modularize system components X 9Replace Velcro Roller X 10Include Transfer Station Roller Pressure Control X 11Provide Instructions to operate product X 12Senior Design Documents X 13Hardware Specifications X 14Determine High Voltage/Pinch Points (Safety) X 15Include Carriage velocity control X 16Stop-gap measures to prevent carriage damage X

Carriage movement to each station Charging Station Exposure Station Development Station Pre-Transfer Erase Transfer Station Process Flow Apply uniform charge to photoreceptor Light reduces voltage in exposed area of photoreceptor Apply charged toner particles to photoreceptor Normalize voltage on photoreceptor Transfer toner from photoreceptor to paper System Functional Diagram

Apply uniform charge to photoreceptor Light reduces voltage in exposed area of photoreceptor Apply charged toner particles to photoreceptor Normalize voltage on photoreceptor Transfer toner from photoreceptor to paper Functional Specs Map Function Uniform Final Voltage Functional Spec Exposed Voltage Developed Mass/Area (DMA) Photoreceptor Erased Voltage Transferred Mass/Area (TMA)

LabView Components Front-EndBack-End Controls OutputsWiringVI Code - Stepper motor control - Velocity - Acceleration - Voltage - Time spent at each station - Reinitialization control - Interface (Ease of use)*** - Plots of voltage, velocity - Record charge before/after charge, etc. - Show which station is being utilized - Interface (Ease of use)*** - Document wiring diagram - Physically label wires for future projects - Modularize design - Use SubVI's to reduce programming complexity

Gantt Chart

Summary Accomplishments ◦ Team Norms/Values ◦ Pair-wise Comparison ◦ Functional Diagram ◦ Gantt Chart Look Ahead ◦ Concept Generation ◦ Risk Assessment ◦ Engineering Specifications ◦ Quality Functional Deployment