
7–46
SERVICE MODE
Item
DENS-ADJ
ADJ-S
LASER-OFF
PWM 600 MIN
PWM 600 MAX
PWM 200 MIN
PWM 200 MAX
Description
Use it to make adjustments if the copy
image is foggy as a result of executing copy
density auto correction.
Use it to fine-adjust the point at which data
for shading correction is measured on the
standard white plate.
• The adjustment is in units of 1/12 mm
(about 0.083 mm).
• The presence of scratches on the stan-
dard white plate can cause noticeable
white, vertical lines on copies. If such is
the case, shift the point of measurement
in ADJ-S.
Use it to adjust the laser OFF timing (trailing
edge).
Use it to enter laser basic values.
Label on the image processor PCB
Settings
1~9
50~80
0~65535
0~65535
Remarks
If you have initial-
ized the RAM or
replaced the
image processor
PCB, enter the
value recorded on
the label attached
to the image
processor PCB.
Copy density
Original density
Black
Black
White
White
Higher setting
Lower
setting
Point of measurement
Standard white plate
(reverse)
P6L
P6H
P2L
P2H
xx
xx
xx
xx
––> Enter under ‘PWM600MIN’.
––> Enter under ‘PWM600MAX’.
––> Enter under ‘PWM20MIN’.
––> Enter under ‘PWM200MAX’.
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 ...