Ricoh MP C4500 PCU Full of toner

[muhammadreza]

you can make some full one color copy after i think it will be Ok. like if problem is m pcu you have to make magenta copy.

[mikadonovan]

try changing the entire drum unit

they need a new PCDU.

contaminating the PCU. It needs a new one and a new bag of dev on that colour.

My advice is that you replace entire PCU unit

That PCU is probably shot though.

Sounds like you need a new PCU.