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7.3.7 Uneven pitch and jitter image
A. Typical faulty images
B. Troubleshooting procedure
Step
1
Print the halftone pattern.
Check if the jitter has occurred.
2
1.7mm or 1.2mm or 2.7mm periodic jitter
occurred.
3
0.78mm or 1.1mm periodic jitter has occu
4
After replacing the E-Clutch in main drive
0.78mm or 1.1mm periodic jitter has occu
5
0.508mm or 0.65mm periodic jitter has oc
6
2.5mm periodic jitter has occurred.
7
94mm periodic jitter has occurred.
8
After replacing the imaging unit, 94 mm p
or band has occurred.
9
35mm or 62mm or 43mm periodic jitter or
occurred.
10
After replacing the imaging unit, 35 mm p
or band has occurred.
or band has occurred
11
52mm periodic band has occurred.
12
55~56mm periodic band has occurred.
Service Manual
7. Troubles
Paper feeding
direction
Check item
shooting
Follow next steps.
has
Replace the imaging unit.
urred.
Replace the E-Clutch in Main Drive
unit.
unit,
Replace the Main Drive unit.
urred.
Replace the Laser Scanning Unit
ccurred.
(LSU).
Replace the Regi Roll Gear in
main unit.
Replace the imaging unit.
periodic jitter
Replace the Main Drive unit.
r band has
Replace the imaging unit.
periodic jitter
Replace the Main Drive unit.
Replace the Transfer Belt unit.
Replace the T2 roller.
7-1
32
Action
SAMSUNG ELECTRONICS
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