Cq20 Spots - Xerox 3001 Service Manual

CQ 20 Spots Probable Cause Corrective Action
Definition
1.
These defects are 0.2 inches (5mm) or
smaller i n diameter. These could appear
at intervals that are in the process
direction.
Contaminated or damaged photoreceptor 1.
drum.
Contaminated or damaged fuser heat roll 2.
or fuser wick.
Contaminated or damaged upper media 3.
feed rolls or media idler rolls.
Defective or damaged media. 4.
Developer material has more than 30K
5.
feet (9K metres) of copies on it.
Low toner concentration or the developer 6.
material is contaminated.
WARNING
There will be a time delay between the time
the code [lo] is entered and the time the
motor starts t o turn. The motor will not start
until the fuser is at the correct temperature.
Wash (General Procedures) or replace (REP
9.3) the photoreceptor drum as required.
Perform the Electrostatic Series (ADJ 9.2)
Clean or replace the fuser heat roll (PL10.2)
and wick.
Clean or replace (PL 8.1) as required.
Try t o make a copy using a Xerox approved
media t o see if the defect is corrected.
Replace the media if required.
Replace the developer material (REP 9.8) and
perform the Electrostatic Series (ADJ 9.2).
Inspect and clean any contamination on the
developer housing. Check the developer for
correct operation.
Perform the Electrostatic Series (ADJ 9.2).
Enter the code [25] t o check the toner
concentration. Then enter code [4] and check
the value. If the value in code[25] is 2 or more
units less than the value in code [4], go t o the
J1 Toner Concentration RAP in Section 2.
(Continued)
1 2/98
C Q 20 Spots
3-52 3001