Ricoh FAX7000L, Field Service Manual

Page: 246 / 377

Symptom Action
Faint copy at leading
or trailing edge
Dirty background on 1.
entire copy image
2.
If the paper is curled, correct the curl before installing the cassette.
If the paper is damp, change the paper in the cassette.
Instruct the operator how to store paper when it is not to be used for a long time.
Thick or thin paper sometimes makes faint copies.
Instruct the operator to use a recommended brand of paper.
If “Call Service” is lit, replace the laser diode unit and the LDDR.
Make a printer test (service function 09, mode 0). Is the printout normal?
Y N
• Reinstall the incorrectly installed master.
• Replace the master (worn out OPC belt).
• Clean the quenching lamp.
• If the toner in the development unit contains dust or paper
particles, change the toner.
• Tighten the toner metering blade securing screws (see page 3-31).
• Clean the charge and transfer corona wires.
• Clean the grounding plates on the master unit (there is
one on each side of the exposure slit).
• Clean the grid plate grounding terminal (at the far right
corner of the master unit as seen from the paper feed direction).
• Replace the varistor if it is shorted.
• Clean the cleaning blade inside the master unit.
Continued on the next page
5-11