Ricoh fax4700l Operator's Manual page 541

LOOKING AFTER THE MACHINE
Replacing the Photoconductor
You should replace the photoconductor to maintain the copy quality after about
every 30,000 sheets.
If the following display appears, replace the photoconductor.
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MEMORY TRANS. PROBLEM
REPLACE PC
To check how many sheets you've printed, please refer the section titled
"Counters" (See page 161).
1. Lift up the operation panel.
2. Open the upper cover.
3. Remove the toner cassette.
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