Question about Ricoh Aficio AP3800C Laser Printer

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Error message What does REPLACE BLACK PCU (TYPE F) mean? Is it the toner?

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  • sherij Jan 13, 2009

    Never mind, one of the guys in our office figured out that it is the Printer Maintenance Kit. Thanks!!



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The pcu stands for photo conductor unit it is more commonly known as the drum.

Posted on Mar 01, 2009


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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

What is replace color cpu toner?

Could the message have been "Replace color PCU (Type A)"? In that case, you need to replace all three color photoconductor units (order Printer Maintenance Kit Type 7100A).

I do not know of any Replace CPU error messages. I hope this helps.

Cindy Wells

Aug 18, 2010 | Ricoh Aficio CL7100 Printer

1 Answer

I just replaced my black cartridge and my Aficio 41000 still says replace blank pcu - why?

The life counter of the black pcu has run out. It had nothing to do with replacing the toner. The replace pcu message comes on at around 50k on this model I think.

Apr 26, 2010 | Ricoh Aficio 1224C Black and White Copier

2 Answers


The 511 error relates to the PCU rotation sensor. There are several causes and solutions.
Causes 1. Toner build up on PCU foil square 2. Toner powder build up on sensor 3. Misalignment of PCU band 4. Damaged PCU foil square.
Solutions 1. Toner build up on PCU foil square Remove PCU from printer and carefully rotate the PCU band around until you see a silver foil square. Remove any excess toner from foil square. Inspect condition of foil square, if damaged go to solution 4. Reinsert PCU and test.
note: PCU band is best described as a black rubber-band type looking material that rotates around the PCU. Be careful not to touch it with fingers or expose to bright light as this can damage it. Clean foil with simple tissue cloth or similar.
2. Toner powder build up on sensor. Remove PCU unit and using a vacuum and/or can of compressed air spray/**** off excess toner powder from sensor inside of printer. The powder can block the sensors ability to sense the foil square, giving you the error.
Note: Sensor is hard to find, but looking at the foil square on PCU band you should be able to judge by line of sight the approximate location, you are looking for a box with a small tab wire with 2 wires coming out from it. Spray / vacuum in that area. Make sure printer is unplugged be careful not to create a excess of static electricity with the vacuum.
3. Misalignment of PCU band If your PCU band has moved off to the right or left of the roller, it will need to be realigned. A simple check of the right and left position on the roller will determine if you need to realign. To realign take apart PCU and carefully manipulate into correct position.
Note: Wear gloves and expect this to be messy with toner. Try not handle PCU band excessively as once it is damaged print quality will be ruined and PCU will need to be replaced.
4. Damaged PCU foil square. If the square is damaged, replace with a piece of tin foil. Superglue on carefully.
note: You don't need to put the new square in exactly the same place, just above or below on the belt is fine.

Mar 27, 2010 | Epson Aculaser C1100 Printer

1 Answer

I have a Lanier LP226cn printer. Under the alert status it is telling me to ''Prepare a New PCU'' and ''Replace CPU Black Soon'' I understand it means to replace my Black Toner soon as someone mentioned...

Sorry, You do not need Black toner, you need a Black PCU (Photo Conductor Unit).
I have this same printer with the same warning.
Unfortunately, This unit seems to be rather expensive.
Good Luck

Mar 01, 2010 | Lanier Office Equipment & Supplies

1 Answer

My Ricoh Afficio 2232C doesn't print and it gives me this message: "Functional problems within your computer. Turn operation on then off. If the error appears again, call service. SC 440-01."Several times...

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.

May 26, 2009 | Ricoh Aficio CL7200 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

2 Answers

Add Toner stuck on & Replace Photo Conductor Unit (PCU)

I suspect that it is the PCU causing the problem, and the message should clear once the PCU is installed and it (automatically) runs it's calibration cycle. Likely the toner auger gear has seized on the PCU, and broken. If the light does not go off after installing the PCU, then you may need a technician, as the toner motor may not be working, or there is a blockage within the toner hopper itself.....but again it is likely the PCU, especially if the toner bottle was empty when it needed replacement. Was it empty?? Did the machine work for a few days, or at least for a while? If so, it seems like too much of a coincidence that this problem would come up at this time.

Good Luck :)

Mar 18, 2009 | Office Equipment & Supplies

2 Answers

Ricoh Aficio cl2000

Most of the time when I find this happening on a printer, not just Ricoh's it turns out to be the PCU (photo conductor unit). The color PCU is one unit and the black is a seperate unit. Hope this helps.

Dec 17, 2007 | Ricoh Aficio CL2000 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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