Xerox DODVS by huangyuarong

VIEWS: 12 PAGES: 23

									Team Xerox
Final Design Report
                          Mechanical Engineering Design Team
                                                Jeff Carpenter
                                                Charlie Morris
                                                  David Postel
                                                 Jeremy Ryatt

              Electrical and Computer Engineering Design Team
                                                Reuben Bellika
                                                       Viet Bui

                                          PSU Faculty Advisor
                                          Mark Weislogel, PhD

                                        Xerox Industry Advisor
                                           Trevor Snyder, PhD
Overview
                     Summary
           System Comparison
                      DODVS
             Vibration Testing
                         BTM
             BTM Automation
                        Optics
                      Lighting
                    Questions
      Summary
• 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
Summary
• 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
                       Previous System




Bench Top Microscope    Drop on Drum Vision System       Computer Software
      (BTM)                      (DODVS)
  • Clumsy to use
  • Vibrates excessively
  • Optical system does not meet desired image quality
 Final System




Bench Top Microscope   Drop on Drum Vision System   Computer Software
      (BTM)                     (DODVS)
DODVS Final Frame Design
DODVS 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
DODVS Optic Mounting
 • Previous system was heavy and cumbersome
DODVS Optic Mounting
 • New system rotates camera to side
DODVS Optic Mounting
(view from rear)

              upr o
                t d
             Spo R



              h b rw
               u s
              T mce
DODVS Optic Mounting
Vibration Testing
• ANSYS simulation
  was verified using
  strain gage analysis
BTM Frame Design
               • 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 Automation
 • The BTM uses a stationary camera
 • X-Y Stage donated by Xerox
BTM Automation

                          • Stage can be controlled
                          electronically by the
                          joystick control interface




• Hand-cranks added for
finer adjustments
Optics
   • 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
DODVS Image Comparison @ 10X




      OLD           NEW
DODVS Image Results




      15X             22X
Lighting

 •  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
Total Cost

           Total Cost: $4,561.56

   Xerox donated time and raw materials
           for all machined parts
Questions???

								
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