Question about Ricoh CL3000E Laser Printer

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Gettin a Error: replace Black PCU.

Hi, after a jam has been cleared the printer is giving a Black PCU replacement error. It still prints fine, is this something I can fix myself?

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Re: 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

Posted on Nov 16, 2007

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Re: Gettin a Error: replace Black PCU. - Ricoh CL3000E Laser Printer Printers & Copiers

Replace Black PCU

Posted on Mar 26, 2009

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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.

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A 440-1 is a black drum motor lock. The waste toner in the black pcu is backed up, more then likley. It is not easy to fix. You could replace the black pcu but it will happen again. The usual problem is oil in the main waste toner system. It clumps up the toner and clogs the part where all the waste toner comes together for entry into the waste toner bottle.

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Paper jam leading to error code sc440-01

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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

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You may have to replace the transfer belt or the drum. I would start with the drum first

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Cleaned the roller & carriage assembly, If possible service the printer your printer will work fine.

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Smearned Printing on Ricoh Aficio AP3800C Laser Printer

Hi there the smudges are most likely down to the black PCU (Drum Unit) and following are the reasons for the two fault caode you have given me.

SC 261 LD HP sensor
not switched
off (for K only)
After the laser beam pitch was
changed, it takes more than
five seconds for the HP sensor
to switch off.
• Defective motor
• Defective sensor
• Mechanical problem
when switching the
• Brown fuse (FU81) on
the Power supply unit
1. Turn the main switch off and on.
2. Check the sensor actuator position of
the LD positioning motor.
3. Replace the LD positioning motor.
4. Replace the LD home position
5. Check and/or replace the PSU.

SC 380 Black
motor error
SC 381 Color
motor error
When the motor speed is
within the target level, the
motor sends a lock signal
(High to Low at CN214-5) to
the BCU.
SC380 is detected under the
following conditions:
• The Lock signal stays High
2 seconds after the motor
turns on.
• The Lock signal stays Low 2
seconds after the motor
turns off.
• The Lock signal stays High
for more than 2 seconds
while the motor is on.
• Defective motor
• Defective BCU
1. Turn the main switch off and on.
2. Replace the motor.
3. Replace the BCU.

Hope this is any help

Thanks J

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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!

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