Canon GP215 Service Handbook page 158

SERVICE MODE
8. Adjusting the Transfer Charging Roller Bias
Item
TRNS-1 Use it to adjust the transfer roller bias occur-
ring when copying on the 1st side.
TRNS-2TS Use it to adjust the transfer roller bias occur-
ring when copying on the 2nd side of a two-
sided copy.
TRNS-2OL Use it to adjust the transfer roller bias occur-
ring when copying on the 2nd side of an
overlay copy.
Note:
Settings are between 0 and 10; however, a value higher than 10 may be entered. (Any such number
will be treated as '5' for control.)
7–50
*3* ADJUST 08
TRNS-1 : xxxxx <– (xxxxx)
TRNS-2TS : xxxxx <– (xxxxx)
TRNS-2OL : xxxxx <– (xxxxx)
Description
CANCEL
+
–
OK
Settings
0~10
0~10
0~10
Remarks
Make adjustments
if image faults
occur because of
an incorrect trans-
fer roller bias.
Guide
• If fogging
caused by stray
toner occurs in
the trailing
edge margin,
increase the
value.
• If the density
grows higher
(darker) at
intervals of
about 94 mm
when copying
an entirely
halftone image,
decrease the
value.