Canon imageRUNNER 2545 Series Service Manual page 245

3. Fixed environment of HH. (Temperature of 28 deg C and humidity of 80%)
2: Make the print density lower. Set the forward rotation time for fixing to 3 seconds. Does not
do it if the forward rotation elongation time has been set to 3 seconds or longer in another
service mode.
● <136: Adjustment of the point to start writing in laser's main scanning
direction (A)>
When replacing the laser unit, enter the unit-specific delay value shown on the label affixed to
the unit.
● <140: Left-end registration adjustment (double-sided small) >
Adjust the left-end registration margin needed when the duplex feeding unit picks up paper
(small paper). Incrementing the value by 1 increases the left-end margin of the image by 0.1
mm.
● <141: Left-end registration adjustment (double-sided large)>
Adjust the left-end registration margin needed when the duplex feeding unit picks up paper
(large paper). Incrementing the value by 1 increases the left-end margin of the image by 0.1
mm.
● <142: Adjustment of margin at leading edge at normal speed (230mm/
sec)>
Adjust the margin at the leading edge (registration roller clutch ON timing) at normal speed.
Adjust the leading-edge registration margin needed at pickup. Increasing the value makes the
margin at the leading edge of the copy larger.
● <143: Adjustment of margin at leading edge at half speed (137mm/
sec)>
Adjust the margin at the leading edge (registration roller clutch ON timing) at half speed.
Adjust the leading-edge registration margin needed at pickup (large paper). Increasing the
value makes the margin at the leading edge of the copy larger.
*This mode is effective only when paper is fed from the manual feed tray of iR2545/2535.
● <144: Laser trail edge OFF adjustment>
Laser trail edge OFF adjustment (input only).
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● <145: Adjustment of the magnification to write image in laser's main
scanning direction (A-B)>
Magnification between lasers A and B
Amount of adjustment of the magnification of laser B of the laser scanner unit. Adjust the
magnification of laser B with reference to that of laser A. If the input value is inappropriate, the
image quality is degraded.
● <146: Adjustment of the magnification to write image in laser's main
scanning direction (A-C)>
Magnification between lasers A and C
Amount of adjustment of the magnification of laser D of the laser scanner unit. Adjust the
magnification of laser C with reference to that of laser A. If the input value is inappropriate,
the image quality is degraded.
● <147: Magnification between lasers A and D>
Magnification between lasers A and D
Amount of adjustment of the magnification of laser C of the laser scanner unit. Adjust the
magnification of laser D with reference to that of laser A. If the input value is inappropriate,
the image quality is degraded.
● <148: Adjustment of the point to start writing in main scanning
direction (A-B)>
When replacing the laser, enter the delay value (laser main scanning adjustment).
● <149: Adjustment of the point to start writing in main scanning
direction (A-C)>
When replacing the laser, enter the delay value (laser main scanning adjustment).
● <150: Adjustment of the point to start writing in main scanning
direction (A-D)>
When replacing the laser, enter the delay value (laser main scanning adjustment).
● <151: Developing bias offset for DC>
Enter the developing bias offset for DC.
When a fault in image occurs (foggy image or light density), enter the developing bias offset
for DC. Increasing the value makes the image darker.
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