Team Xerox Team Xerox Final Design ReportFinal Design Report

Mechanical Engineering Design Team

Jeff CarpenterCharlie Morris

David PostelJeremy Ryatt

Electrical and Computer Engineering Design TeamReuben Bellika

Viet Bui

PSU Faculty AdvisorMark Weislogel, PhD

Xerox Industry AdvisorTrevor Snyder, PhD

SummarySystem Comparison

DODVSVibration Testing

BTMBTM Automation

OpticsLighting

Questions

OverviewOverview

SummarySummary

• Oil is transferred from the maintenance roller to the drum before ink is transferred by the print head

• Ink transfer from drum to paper as the paper feeds between the transfix roller and drum

• Objective: produce a imaging system that is capable of capturing ink drops on the drum of a solid ink printer and on the paper

• The imaging systems will be used by Xerox, Portland State Undergraduate and Graduate students for research of the solid-ink printing process.

• There is no specific imaging system that compares the drum images to paper images

SummarySummary

Previous SystemPrevious System

• Clumsy to use• Vibrates excessively• Optical system does not meet desired image quality

Bench Top Microscope Drop on Drum Vision System Computer Software

(BTM) (DODVS)

Final SystemFinal System

Bench Top Microscope Drop on Drum Vision System Computer Software

(BTM) (DODVS)

DODVS Final Frame DesignDODVS Final Frame Design

DODVS FrameDODVS Frame

• Uses 3x6 inch T-Slot vertical supports

• 3/4 inch thick aluminum base and top plate

• Added gussets increase natural frequency and decrease amplitude of oscillation

• Previous system was heavy and cumbersome

DODVS Optic MountingDODVS Optic Mounting

• New system rotates camera to side

DODVS Optic MountingDODVS Optic Mounting

DODVS Optic Mounting DODVS Optic Mounting (view from rear)(view from rear)

Support Rod

Thumbscrew

DODVS Optic Mounting DODVS Optic Mounting

Vibration TestingVibration Testing

• ANSYS simulation was verified using strain gage analysis

• Same 3x6 inch T-Slot material

• Same 3/4 inch thick base and top plate

• Features cover plates to hide messy electronics and wires

• Very similar to DODVS construction

BTM Frame DesignBTM Frame Design

BTM AutomationBTM Automation

• The BTM uses a stationary camera • X-Y Stage donated by Xerox

BTM AutomationBTM Automation

• Stage can be controlled electronically by the joystick control interface

• Hand-cranks added for finer adjustments

• Existing camera and optic components reused to reduce cost

• An identical camera and optics purchased for BTM

• New optics system has magnification range 3x to 22x

OpticsOptics

DODVS Image Comparison @ DODVS Image Comparison @ 10X10X

OLD NEW

DODVS Image ResultsDODVS Image Results

15X 22X

LightingLighting

7.0X6.0X

RingGoosenecksRingGoosenecks

Lighting system: Schott Mini Ringlight Light Source: Dolan-Jenner PL-800 (100%

intensity level) Optics: Thales Optem XL70, 2X TV, 2X Aux

lens (Iris completely opened) Test Sample: US 5 dollar bill

Lighting system: Schott Combination Dual Goosenecks w/ Bundle (A08520)

Light Source: Dolan-Jenner PL-800 (100% intensity level)

Optics: Thales Optem XL70, 2X TV, 2X Aux lens (Iris completely opened)

Test Sample: US 5 dollar bill

System 2System 1

• Gooseneck lighting system took too long to damping out

• Not enough light at maximum magnification with working distance (89 mm) of the lens

• Schott goosenecks to be stable but still did not provide sufficient lighting

• They did not provide focusing of the light output. • A pair of focusing lenses were purchased for

goosenecks

LightingLighting

Total CostTotal Cost

Total Cost: $4,561.56

Xerox donated time and raw materials for all machined parts

Questions???Questions???