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Changed black PCU and am now getting a SC304 error help

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Can you please give me the model machine we are dealing here so i can give you the right diagnosis please

Posted on Aug 14, 2008

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I have a ricoh aficio cl7000 and there is a error code black pcu type f - is that the black toner?


No, the PCU is separate from the toner. It is basically the drum imaging unit, and it can easily be replaced if you have a new one. When you open the printer's front door there are a row of black units running diagonally down the front of the copier -- the black PCU is the upper left most one.

You can buy a new black PCU from your local dealer, or else you can find one online from many different sites. Make sure you get the black one -- the color PCUs are separate.

Aug 19, 2011 | Ricoh Aficio CL7000 Laser Printer

1 Answer

On a ricoh aficio 3500n color laser printer getting a replace black cpu error after changing the black cartridge. How do i take care of this?


replace the black pcu(drum unit).
the life of the pcu(s) are 15k each(blk & col) .
the machine will work but copy quality will reduce and the error will be there.
replacing the cartridge has nothing to do with this error.

Jan 14, 2010 | 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

I get an error sc361 and sc364


sc 361 Magenta TD sensor (pcu)

sc 364 Black TD sensor (pcu)

check if the pcu's are in position tight


May 08, 2009 | Ricoh CL4000DN Laser Printer

1 Answer

Ricoh aficio cl3500n reads replace colr pcu what is this?


The PCU is the photconductor unit. There is a black pcu and a color pcu. Did you replace these or replace the toner cartridges??

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

Jan 19, 2009 | Ricoh Aficio CL3500N Laser Printer

4 Answers

SC 441


Hi there the following is the description from the service manual hope this helps you Thanks J

441 PCU (CMY) motor error
The drive motor of the CMY
PCU is not locked.
• Defective gear
• Voltage between pins 2 and 14 (CN12 on engine
control board) abnormal (not +24V), or pin 12
(CN12 on engine control board) unable to send
motor clock
• Defective CMY PCU drive motor
1. Replace the CMY PCU.
2. Replace the engine control board.
3. Replace the main drive unit assembly.

I would try replacing the CMY PCU (Drums (Photo Conductor Units) first before any of the others.

Thanks J

Jan 06, 2008 | Ricoh Aficio CL2000 Laser Printer

4 Answers

Ricoh Aficio Color Registration Error


One of our Ricoh CL3500N printers- less than a year old- gave us a "color regist error" after changing the transfer belt.

Ran the "adjust color regist" without results. It would just finish and pop back up with the same error.

Color test page printed no color, just BW

I reseated everything, and even replaced the PCU without positive results.

A couple hours later I went back, took everything out (be sure to keep the pcus out of the light!), and vaccuumed the heck outta that printer.

For whatever reason- maybe there was a chunk of toner hanging out, maybe I knocked something loose or back in place, whatever- but when I put all the parts in and turned it on, the error was gone and color printed great!

Dec 11, 2007 | Ricoh Aficio CL3500N Laser Printer

2 Answers

Gettin a Error: replace Black PCU.


Hi yes you can fix it yourself it is just a warning that says the black pcu is almost warn out , but if the quality is still good you can clear the message is the sp modes by holding down online and escape whilst switching on the machine , under the menu "engine " is a sub menu called data log enter it and execute pm counter reset
hope this helps

Oct 15, 2007 | Ricoh CL3000E Laser Printer

3 Answers

Error Message: Replace Black PCU


I'm not sure how to obtain one, but "Black PCU" stands for Black Photoconductor Unit, and according to a manual for a different Ricoh printer model, it should be fairly simple to replace if you can find one.

Nov 10, 2006 | Ricoh Aficio CL2000 Laser Printer

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