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- Turn the printer off.
- Open the cover on the right side (as you're looking at the front of the printer).
- There are two green levers, one toward the front of the printer and one toward the back -- pull these out and lift the cover that they're holding all the way up (it should stay in place).
- Remove the black PCU by pinching the green lever and sliding the unit straight out.
- Take the new PCU out of the box, take off the tape around it and remove the cover on top of the unit.
- Align the new PCU along the rails the same way the old one was aligned (using the green arrow) and slowly slide it in. As you slide it in it will slide out of the bottom cover -- throw that cover away.
- Lower the PCU cover and slide the levers into place.
- Close the side door.
- Turn the printer on.
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
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.