Canon IR6000 uneven density front to back and background with feeder

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  • Desert Rat
    Service Manager

    Site Contributor
    1,000+ Posts
    • May 2008
    • 1089
    #1

    Canon IR6000 uneven density front to back and background with feeder

    I noticed an uneven density from front to back. The back being lighter in density.
    This was not noticed by the customer. What he noticed was the background
    on the copy through the feeder.
    I'm not quite sure what is causing this, I have check the dv unit, even coating of toner and collars
    sorta clean. I cleaned 'em. The drum was polished 6 months ago when I replaceld the coronas.
    The chargers looked clean except the pre-transfer, I may have a scraper for it. I cleaned the erase
    lamp that was not dirty. Dusted the optics. It stopped long enough for me to get down the road
    about 5 miles. I hate when that happens.
    The feeder appears to sit flush with the glass. One other thing, the original recognition off the glass
    is not working.
    My customer hand scanned 200 pages so he could run the job. He ran it all and said it came out good.
    He had some old photos for a year book. Class of 1959 from the looks of the people.
    I will have to see this machine next week.
    Has anyone else ever seen these symptoms on the IR 6000?

    Thanks

    DR
    Tags: 200, 600, 6000, back, background, book, business, canon, copy, customer, dirty, drum, feeder, flush, front, glass, good, ir 6000, ir6000, job, long, pages, scan, scanned, skype, stopped, symptoms, toner, transfer, unit
    • SCREWTAPE
      East Coast Imaging

      Site Contributor
      2,500+ Posts
      • Jan 2009
      • 3396
      #2
      The white plate could be dirty.

      The lamp could be going weak.

      You can try doing a CCD.

      When you mean the original recognition off the glass isn't working, its not reading the paper size correctly.

      How does the internal pages from service mode look, lets say a PG5.

        Comment

        • melanieok
          Technician
          • Jun 2010
          • 37
          #3
          Hi,we're a manufactuere of copier and laser printer parts&consumables in China.We can supply u good quality products at competitive prices.If u have such needs,pls do not hesitate to contact me.Looking forward to hearing from u.
          best wishes,
          melanie

          Guangzhou Anling Office Equipment Co,Ltd.
          Website: http://www.gzanling.com
          http://gzanling.cn
          tel: 86-020-82582141
          fax: 86-020-82573170
          e-mail:           melanie1224@yahoo.cn
          melanie@gzanling.com
          skype: melanie25131
          msn: melanieok@msn.cn
          ali wangwang: cn220042767
          Manufacturer of copier and laser printer parts&consumables in China.

            Comment

            • teckat
              Field Supervisor

              Site Contributor
              10,000+ Posts
              • Jan 2010
              • 16092
              #4
              Originally posted by melanieok
              Hi,we're a manufactuere of copier and laser printer parts&consumables in China.We can supply u good quality products at competitive prices.If u have such needs,pls do not hesitate to contact me.Looking forward to hearing from u.
              best wishes,
              melanie

              Guangzhou Anling Office Equipment Co,Ltd.
              Website: http://www.gzanling.com
              http://gzanling.cn
              tel: 86-020-82582141
              fax: 86-020-82573170
              e-mail:               melanie1224@yahoo.cn
              melanie@gzanling.com
              skype: melanie25131
              msn: melanieok@msn.cn
              ali wangwang: cn220042767

              not the place to post Personal Business info.
              **Knowledge is time consuming, exhausting and costly for a trained Tech.**

                Comment

                • Desert Rat
                  Service Manager

                  Site Contributor
                  1,000+ Posts
                  • May 2008
                  • 1089
                  #5
                  Screwtape, I will check the white plate again. If the lamp is weak, why would it only show up when using the feeder?

                  DR

                    Comment

                    • D_L_P
                      Self Employed

                      1,000+ Posts
                      • Oct 2009
                      • 1196
                      #6
                      I seem to remember a tech replacing the slit glass for a similar issue. To determine if it is due to wear on the slit glass adjust Copier->Adjust->STRD-POS. I'd go +/-10 and see if it makes any difference.

                      How does a test page 5 (halftone) look?

                      Kinda off topic, but I remember installing a binder minder on a copier once. Regular copies with text looked fine but glossy photos looked like crap....and 80% of what they copied were photos I soon realized just how sensitive CCD's are while trying to adjust it so the photos looked OK. After adjusting everything the only thing that worked for the glossy photos was putting a couple books on top to keep it perfectly flat. If there was the slightest wrinkle or curve it would show up as either a white or dark cloudy area on the copy.

                        Comment

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