Reset pcu black for cl3500dn - Ricoh Aficio CL3500N Laser Printer

Sometimes you have to power the machine off to get it to reset.

Hi, my experience with this machine is that the gear that drives the black pcu breaks or cracks. Usually caused by the pcu being too hard to turn. I always turn the developer gear in the pcu before installing it just to loosen the toner.

SC 441 - development motor lock.Possible causes:
too much load on the drive mechanism
development motor defective
poor drum motor connector connection
interface board defective

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.

That is correct.

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

open rhs panel, lift flap, remove waste toner container and then slide out black pcu.

1. PCU needs R/R
2. You should replace the PCU if prints show any of the following symptoms.
   • Colors are missing, faint, or partially blurred.
   • Toner smears appear.
   • White or color rivers appear.
   • White or colored streaks appear.
4. Important: Switch off the device and disconnect it at the mains.
5. Open the right side cover.
6. Pull the green levers as shown to release the inner cover.
7. Lift the inner cover upwards.
8. Squeeze the green lever on the black PCU.
9. Pull the unit carefully out of the device and dispose of it in accordance with your local environmental policy.
10. Place the new PCU on a flat surface.
11. Peel off the tape from around the new PCU.
12. Remove the top cover from the PCU. DO NOT remove the bottom cover at this stage.
13. Rest the new PCU in the device as shown.

1. Push the PCU into the device while holding the bottom cover. You will hear a click when the PCU has locked into place.
2. Lower the inner cover.
3. Push the two green levers as shown to secure the cover.
4. Close the side cover.
5. Connect the device at the mains, switch it on and wait for the self-test operation to finish.
6. Please remember to rate all users who assist you for free :)
   

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

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

you need to replace the black cpu, if you go to their website it will tell you how to replace it step by step