aficio 850

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • tecnoacre
    Technician
    • May 2009
    • 29
    #1

    aficio 850

    I'm friends with a problem on a Ricoh aficio 850, the copies are coming out white at the top of copies, already reviewed the laser, optical drive and not sucesso.imprimo got the meter and the part where you have the arrow is blank. I would like to help a

    tecnoacre
    Tags: 850, act, aficio, developer unit, gap
    • KopyKat
      Nurse Ratched of Repair

      250+ Posts
      • Nov 2008
      • 366
      #2
      Originally posted by tecnoacre
      I'm friends with a problem on a Ricoh aficio 850, the copies are coming out white at the top of copies, already reviewed the laser, optical drive and not sucesso.imprimo got the meter and the part where you have the arrow is blank. I would like to help a

      tecnoacre
      Check the developer unit. You may have blockage under the doctor blade. There should be developer fully coating both upper and lower mag rollers. Use the mylar cleaning tool to clean the back of the blade described in your service and parts manual. DO NOT remove the white painted screws.

      You can rule out the optics since an internal counter page has the problem.

      Oh and also check your laser slit glass which sits above and slightly to the right of the drum unit.
      sigpic

      Relax! This firmware injection won't hurt...but it will take 45 minutes.

        Comment

        • tecnoacre
          Technician
          • May 2009
          • 29
          #3
          aficio 850

          now replaces unit.developer for another and still the problem, already cleaned throughout the laser. already dismantled all the top to reach the laser and clean it inteiro.e still the problem persists get the look of more suggestions.

            Comment

            • KenB
              Geek Extraordinaire

              2,500+ Posts
              • Dec 2007
              • 3945
              #4
              Is there a clutch which "cams in" the developer unit to contact the drum?

              If so, and if it is slipping, it will cause uneven pressure, which creates a gap, resulting in uneven prints.
              “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

                Comment

                • copytechman
                  Senior Tech

                  Site Contributor
                  500+ Posts
                  • Nov 2008
                  • 926
                  #5
                  Nope, no cam in mechanism, how bout the charger unit.. I know that usually the cleaner unit will cause black lines if not @ home but just worth a look regardless.. also is the xfer belt unit properly locked in? Both springs (iirc) under the belt in place? ..
                  Food for thought!

                  Regards!
                  A.

                    Comment

                    • KenB
                      Geek Extraordinaire

                      2,500+ Posts
                      • Dec 2007
                      • 3945
                      #6
                      Is it possible to stop a print midstream, and check to see if there is a good image on the drum?

                      If there is, then it's a transfer problem, like you mentioned.
                      “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

                        Comment

                        • copytechman
                          Senior Tech

                          Site Contributor
                          500+ Posts
                          • Nov 2008
                          • 926
                          #7
                          I agree try a sky shot and stop it half way to see what the image is like on the drum, probably easiest with 11x17 on that machine due to it's speed though!

                          Regards!
                          A.

                            Comment

                            • tecnoacre
                              Technician
                              • May 2009
                              • 29
                              #8
                              aficio 850

                              I will check and give it back, but I appreciate the tips

                                Comment

                                Previous template Next
                                Working...