Samsung CLX-9250ND - Uneven Pitch and Jitter Image

7. Trouble
s
7.3.7 Uneven pitch and jitter image
A. Typical faulty images
Paper feeding
direction
B. Troubleshooting procedure
Step Section Check item
1 Test Printing Print the halftone pattern.
Check if the jitter has occ
u
2 Imaging unit 1.7mm or 1.2mm or 2.7m
jitter has occurred.
3 Main Drive Unit 0.78mm or 1.1mm period
i
occurred.
4 Main Drive Unit After replacing the E-Clut
c
drive unit, 0.78mm or 1.1
m
periodic jitter has occurre
d
5
Laser
Scanning Unit
0.508mm or 0.65mm peri
o
has occurred.
6
Regi roll Gear
2.5mm periodic jitter has
o
7Ima
g
in
g
unit 94mm periodic
j
itter has
o
gg
j
8 Main Drive Unit
A
fter replacing the imagin
mm periodic jitter or band
occurred.
9 Imaging unit 35mm or 62mm or 43mm
jitter or band has occurre
d
10 Main Drive Unit
A
fter replacing the imagin
mm periodic jitter or band
occurred.
11 Transfer belt
unit
52mm periodic band has
o
12 Transfer 2
roller
55~56mm periodic band
h
occurred
Service Manual
CLX-9250/9350 series
7-1
roller
occurred
.
s
hooting
Result Action
u
rred.
Yes Follow next steps.
m periodic Yes Replace the imaging unit.
i
c jitter has Yes Replace the E-Clutch in
Main Drive unit.
c
h in main
m
m
Yes Replace the Main Drive
unit.
d
.
o
dic jitter Yes
Replace the Laser
Scanning Unit (LSU).
o
ccurred. Yes
Replace the Regi Roll
Gear in main unit.
o
ccurred. Yes Replace the ima
g
in
g
unit.
gg
g unit, 94
has
Yes Replace the Main Drive
unit.
periodic
d
.
Yes Replace the imaging unit.
g unit, 35
has
Yes Replace the Main Drive
unit.
o
ccurred. Yes Replace the Transfer Belt
unit.
h
as Yes Replace the T2 roller.
SAMSUNG ELECTRONICS
57