Service manual

TROUBLESHOOTING GUIDE 2
SM 4-53 G130/G131
Adjustment Standard: Max. 150 µ m
Adjust the skew image for each color.
SP2-908-002：C
SP2-908-003：M
SP2-908-004：Y
・If the left side of each image is skewed in
trailing edge direction against an image of
BK, increase the value of these SPs.
・If the left side of each image is skewed in
leading edge direction against an image of
BK, decrease the value of these SPs.
When you change these values by 10, the
image gets skewed by C: 0.2mm, M: 0.1mm,
Y: 0.07mm.
Start
Clean the ID sensors.
Execute the Forced Toner Density Adjustment:
SP3-126-002
1. Execute the line position adujstment:
SP5-993-002
C
2. Print out a pattern with the following settings:
SP5-997-001：Select the tray for A3 size.
SP5-997-002："1-dot grid (F)"
SP5-997-004："Full Color"
SP5-997-005："600X600"
SP5-997-007："Execute"
Result of 1.A NO
Result of 2.
OK
Skew
Print out a "1 dot grid (F)" pattern.
Check the
skew.
Replace the laser
optics housing unit.
No change
1. Execute the line position adujstment:
SP5-993-002 : "Execute"
Change
Result
Result of 2.
NO
End
OK
End
OK
Skew
Shift
NO
Replace the laser
optics housing unit.
NO
A
D
Shift
2. Print out a pattern with following settings:
SP5-997-002："1 dot grid (R)"
SP5-997-004："Full Color"
SP5-997-005："600X600"
SP5-997-007 : "Execute"
Result of 1.
OK
G130T506.WMFF
The flowchart illustrates the procedure to adjust line positions.
NOTE: The allowance of color shift is 150µm. Keep the color shift in the range of 0 to
150µm.