Reset pcu correctly - Gestetner Office Equipment & Supplies

sc302 is usually PCU or charge roller.
As you say you have recently replaced the Drum/PCU, is the drum turning correctly?

Check charge connectors and connectors on the back of the pcu. To reset that code, simply turn main power off and on again. If problem comes right back....the machine detects the cause still exists. May be an issue with the HVT.

Perhaps, it is a faulty PCU. Try by shutting off power and using another but wait a few minutes before turning it on again.

I had the same issue with my CL3500N. I kept taking out and reinserting the color PCU with the same resulting error. However, I fixed my problem. My color PCU is now reset and printing
Instructions on how I fixed the issue:
1) Turn off the printer and remove the color PCU from the printer
2) Look inside the printer where you removed the color PCU and you will notice three attach points (gears) that each of the three color PCU rollers connect to the printer.
3) Notice that each roller inside the printer has an arrow stamped in metal pointing toward it. On my printer, one at approximately the 2 o'clock position, 9 o'clock position and 3 o'clock position.
4) On the color PCU look at the end of unit that you insert into the printer. Notice the white female connectors on each of three rollers. Look closely and you will see that there are notches inside each connector (gears). One of those notches is longer than the others.
5) For each roller insert your finger into the white connector (gear) to rotate the roller so the long notch aligns with the arrow inside the printer. Be careful not to touch the photo sensitive area of the roller.
6) Insert the color PCU into the printer and turn it on. May need trial and error to align the notch correctly, but it certainly worked for me.

Cant remember if these models use the rebuildable pcus or not.
If it does:
change the developer / blade / charge roller/brush and drum if needed then run the TD initilization .
If copy quality is good then you can run td ini without changing those parts and just replace them at failure.

If it doent:
Change the whole pcu
it will reset itself
or if copy quality is good run the td ini and the message will clear.

This must be done before drum is replaced.
Resets counter.

Start the SP mode and execute the
New Unit Set:
• PCU: SP5-999-001 ∼ 004

you must reset the pcu unit. make sure connections are correct. you put the correct developer in?

The reset chip will not provide you with a long term solution to your problem. The photoconductor unit is now full of waste toner and the photoconductive drum, prime charge roller and wiper blade are all worn, this is the cause of the message. Your only real and the correct solution is to replace the Photoconductor unit with a new one. Remember that this is part of the consumable set for this printer and is therefor costed in as part of the cost per page.
Should you proceed with the replacement chip, you will be opening yourself to deminishing quality print and eventual failure of the unit.

Gremlin11

have you tightened the two screws either end of the brown retaining bar (inner cover) ? Is there a small white plastic bar sticking out from the front of the yellow PCU ? This white "stick" activates a switch in the inner cover

switch the machine off at the switch hold down online and escape while switching on the switch , hold the buttons till you see service mode on screen , you need to go to engine , then drum , there you will find the setting to reset the pcu , or under data log is a function pm counter clear if it is giving you replace pcu on the screen

You get this message because the PCU isn't seated properly. This is a link for the user manual for this printer: http://www.ricoh-usa.com/downloads/manuals/printers/cl2000.pdf On page 13 shows a diagram that indicates the photoconductor unit on the printer. Page 60 shows you different error messages, what they mean and how to fix it. It means you have to take out the pcu and reseat it into the printer, it is not in correctly. Page 29 shows you how to do this. It has pictures of how to take out the pcu and put it in correctly. I hope you get it fixed.