
3–10
TROUBLESHOOTING IMAGE PROBLEMS
7
The copy has black lines. (vertical, thin)
Cause
Exposure sys-
tem
Primary charg-
ing assembly
Photosensitive
drum
Fixing assem-
bly
Step
1
2
3
4
Checks
Generate a test print using ‘L-
TEST2’ in service mode (*4*).
Does the generated copy have
black lines?
Clean the primary charging
roller in user mode. Is the prob-
lem corrected?
Are there scratches or black
lines on the surface of the pho-
tosensitive drum in peripheral
direction?
• Try wiping off the black lines,
if any, on the photosensitive
drum with cloth coated with
toner to see if they disap-
pear from copies too.
Are there scratches or black
lines in the peripheral direction
of the surface of the fixing film?
Yes/No
NO
YES
YES
YES
NO
Action
The scanner system may be
faulty.
Clean the No. 1 through No. 3
mirrors.
End.
Replace the drum unit.
• If there are scratches, be
sure to investigate the
cause.
Replace the fixing assembly.
Check the inlet of the fixing
assembly for dirt.
Summary of Contents for GP215
Page 4: ......
Page 36: ......
Page 38: ...3 2 TROUBLESHOOTING IMAGE PROBLEMS ...
Page 39: ...3 3 TROUBLESHOOTING IMAGE PROBLEMS ...
Page 40: ...3 4 B Image Fault Samples ...
Page 80: ......
Page 92: ...6 6 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS C Fans Figure 6 603 FM6 FM5 FM2 FM3 FM1 FM4 ...
Page 105: ...6 19 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS 3 Composite Power Supply PCB Figure 6 610 ...
Page 204: ...C GENERAL CIRCUIT DIAGRAM General Circuit Diagram 1 4 A 3 ...
Page 205: ...General Circuit Diagram 2 4 A 4 ...
Page 206: ...General Circuit Diagram 3 4 A 5 ...
Page 207: ...General Circuit Diagram 4 4 A 6 ...