Laser; Img-Reg - Canon imageRUNNER ADVANCE 6075 Series Service Manual

■ LASER

COPIER > ADJUST > LASER
PVE-OFST Adj of write start position of laser
Lv.1 Details To adjust the image position by changing the laser emitting position.
When replacing the DC Controller PCB/clearing RAM data, enter the
value of service label.
As the value is incremented by 1, the image moves by 0.1mm.
+: Toward rear
-: Toward front
Use case When adjusting image position
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Use this only when replacing the DC Controller PCB/Laser Scanner
Unit. When adjusting the image write start position, use COPIER>
ADJUST> FEED-ADJ> ADJ-C1/C2/C3/C4/MF/DK. If it is not
sufficient enough, execute mechanical adjustment.
Display/adj/set range -300 to 300
Unit 0.1 mm
Appropriate target value 0
Default value 0
Related service mode COPIER> ADJUST> FEED-ADJ> ADJ-C1, ADJ-C2, ADJ-C3,
ADJ-C4, ADJ-MF, ADJ-DK
POWER Adj laser power at no potential control
Lv.1 Details To adjust the laser power when the potential control is not performed.
Display/adj/set range 0 to 255
Related service mode COPIER > OPTION > FNC-SW > PO-CNT
COPIER > OPTION > TEMPO > F-POT-SW
8
Service Mode > COPIER > ADJUST > IMG-REG
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8 Service Mode > COPIER > ADJUST > IMG-REG

■ IMG-REG

COPIER > ADJUST > IMG-REG
MAG-H-K Fine adj of magnification: horz scan
Lv.1 Details To make a fine adjustment of image magnification in horizontal
scanning direction by adjusting the rotation speed of the Polygon
Mirror/modulating clock.
Convert the magnification measurement line length of PG for image
position adjustment into a percentage, and enter the amount of
change in percentage.
As the value is incremented by 1, the image magnification changes
by 0.01%.
+: Enlarge
-: Reduce
Use case - When checking image at initial installation
- At check operation when replacing the Laser Scanner Unit
- When adjustment is requested by a user
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Do not use this at the normal service.
Display/adj/set range -100 to 100
Unit 0.01%
Default value 0
MAG-V Fine adj of magnification: vertical scan
Lv.1 Details To make a fine adjustment of image magnification in vertical
scanning direction by adjusting the rotation speed of the Polygon
Mirror/modulating clock.
Convert the magnification measurement line length of PG for image
position adjustment into a percentage, and enter the amount of
change in percentage.
As the value is incremented by 1, the image magnification changes
by 0.01%.
+: Enlarge
-: Reduce
The setting value is reflected to the rotation speed of the Polygon
Mirror set to the DC Controller at the time of shipment.
Use case - When checking image at initial installation
- At check operation when replacing the Laser Scanner Unit
- When adjustment is requested by a user
Adj/set/operate method Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
Caution Do not use this at the normal service.
Display/adj/set range -100 to 100
Unit 0.01%
Default value 0
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