Service manual

TROUBLESHOOTING GUIDE 2
G130/G131 4-54 SM
G130T517.WMF
Adjust the color
development motor
Check the color shift at
the center of the image
Replace the laser
optics housing unit.
End
A
Check the color shift at
both edges of the image
No shift
No shift
Leading
edge
Adjust the main scan
registration.
SP5-993-10 to 21
Shifted by 1.4 mm or less
Execute the line position
adjustment.
SP5-993-002
Set the factory settings with
the following SPs:
SP5-993-10 to 21
Execute the line position
adjustment.
SP5-993-002
Print out a 1 dot grid (F)
pattern.
SP5-997-007: "Execute"
Check the
color shift .
Shifted by
1.4 mm or more
Check the
transfer belt.
B
No Scratch
C
Replace the
transfer belt unit.
Scratch
Adjust the color shift
between the fusing unit
and transfer belt unit.
Trailing
edge
Print out a 1 dot grid (F)
pattern.
SP5-997-007: "Execute"
Check the
color shift.
Replace the transfer
belt unit.
Cannot adjust
the color shift.
End
OK
Print out a 1 dot grid (F)
pattern.
SP5-997-007: "Execute"