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Ricoh mpc 2500. apparently i took out the pcu unit, and dumped all the developer out thinking this would solve my black lines issue. well if i buy a new one, would that fix it, or would i need a technician come out and put it in.. How can i fix this without paying $1,100 for a new pcu unit? thanks

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Hello sir; You did it right,but only missing one place that is transfer belt unit, there have a cleaning unit (at the end of the unit) just replace cleaning blade should take care your problem.

Posted on Jul 13, 2009

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1 Answer

SC 491 error message


sc 491 is error signal is detected for 0.2 seconds when charging the drum or development.
• High voltage leak
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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.

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Ricoh Aficio AP3800c--message to replace black PCU, have done same and still get message?


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2 Answers

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Sc 491 straight from manual

High voltage power: Drum/ development bias output error
An error signal is detected for 0.2 seconds when charging the drum or
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 High voltage leak
 Broken harness
 Defective drum unit or development unit
 Defective high voltage supply unit

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2. Replace the drum unit or paper transfer unit.
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1 Answer

Installing PCU on Ricoh Aficio MP2510.


Hello sir; The procedure little bit difficult, Remove PCU, remove the front cover(two screws), remove the rear bushing by remove one lock ring, remove the front joint, remove the developer hopper cover( 3 hook ) dump the old one out vacuum entire unit ( magnet roller ), fill in new developer, replace hopper cover, after replace PCU and developer you need to do some simulation, #1, press "clear mode" "107" and press hold "clear/stop" for 3 seconds, then touch screen on "copier sp". #2, enter sp3902-9 to1 for black drum unit, sp 3902-10 to 1 for yellow, sp3902-11 to 1 for cyan, sp3902-12 to 1 for magenta, #3, enter 3902-005 for black, 3902-006 for yellow, 3902-007 for cyan, 3902-008 for magenta, set 3902 to 1 for each of these if replaceing developer, press "exit" twice to end the service.

Sep 18, 2009 | Office Equipment & Supplies

1 Answer

Ricoh Aficio CL3500N PCU issues


These machines were actually made by Panasonic and they eat PCU's there is no rhyme or reason, they just do. I would replace all of them as soon as possible. These printers were pretty much interim technology for Ricoh until they developed thier own engine. I highly recommend the new 400 color series, low cost per page, vg color and consumables last a long time!

www.mfpsolutions.blogspot.com
http://www.websitetoolbox.com/mb/copierquestions

Jan 19, 2009 | 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

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You need a new drum. Photoconducter unit. Cost about 140.00 I sell them or you can shop on EBAY

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