Question about Gestetner C7435n Laser Printer

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Just changed black PCU but there are still black lines on the page

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Bad fuser

Posted on Nov 27, 2013

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Posted on Jan 02, 2017

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1 Answer

Ricoh aficio c420dn wont print black


Hi, my experience with this machine is that the gear that drives the black pcu breaks or cracks. Usually caused by the pcu being too hard to turn. I always turn the developer gear in the pcu before installing it just to loosen the toner.

Mar 15, 2017 | Ricoh Aficio Office Equipment & Supplies

1 Answer

I have a Ricoh Aficio CL3500N When I print a vertical page there are thin black lines going down the left side of the page. What causes it?? And what can I do??


Hi, thin black lines are most likely (but not definitely) caused by something in the black PCU (photoconductor unit), either the drum or the charger. Replacing the black PCU will likely get rid of your lines. The Ricoh code for a black PCU if you don't already have one is 402448.

Jan 29, 2011 | Ricoh Aficio CL3500N Laser Printer

2 Answers

Balck and white streaks on left side of paper


Usually if there are streaks you need to change the pcu that is the same color as the lines. If the streaks are gray it also could be the fuser, but i would think it is the pcu.

May 18, 2009 | Ricoh Aficio CL3500N Laser Printer

3 Answers

Thin lines along left side of Ricoh CL2000N laser printer


Printing B&W? Colour? or both?
Depending on your answer, replace the applicable Photoconductor.

Mar 02, 2009 | Ricoh Aficio CL2000N Laser Printer

1 Answer

Black Lines running down the right side outside of the print area


It may be the fuser. Take it out and inspect the roller on it:

  1. Switch off the device, disconnect the mains plug and wait for 30 minutes before continuing.
  2. Ensure that the bypass tray is closed, or you will not be able to open the front cover.
  3. Open the front cover by pressing the release buttons as shown.
  4. Pull the front cover down towards you.
  5. Disconnect the green plug - squeeze the sides of the plug and pull.
  6. Push the left and right levers outward to unlock the unit.
  7. Pull the unit towards you as shown and lift it clear of the device.
  8. Check the roller for wear marks, If so replace it.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


Oct 21, 2008 | Ricoh Aficio CL3500N Laser Printer

3 Answers

Vetical lines printing on page


If the lines are blue, check the color PCU.

Oct 25, 2007 | Ricoh Aficio CL3500N Laser Printer

1 Answer

Black lines down page


It must be the black pcu , the cleaning blade picks up dirt and causes these lines , it can also be the black developer giving you trouble , if you want be very carefull aand strip the pcu open you will see the lines only on the inside and not from outside , then you will know if it is developer or the cleaning blade

Oct 24, 2007 | Ricoh CL4000DN Laser Printer

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