Samsung CLX-9252 Series Service Manual page 431

7.3.9 Low image density
A. Typical faulty images yp
B. Troubleshooting procedure
Step
1 Toner is empty or toner exhaust section is
2 2 One of 2 beams is fail Print the S600 patte One of 2 beams is fail. Print the S600 patte
1*4 pattern. (Refer to the image of S600 in
page)
3 Toner carriers and toner level is too low in
Check weight of imaging unit. If less than 2
imaging unit needs replacement.
4 Transfer belt unit makes positive contact w
rails.
5 Is abnormality found in the cam gear?
6 Execute the Normal TRC Control, Quick T
or Full TRC Control (Service Mode > Diag
Color Management > Color Tone Adjustme
TRC Control > Execute Now). Then check
density is improved density is improved.
Service Manual
y g
Check item
7. Troubles shooting
blocked.
ern and check ern and check
n the next
imaging unit.
2150g
with plates on
TRC Control,
nostics >
ent > Normal
k if the image
7-1 34
Action
Change toner cartridge.
Change the LSU. Change the LSU
Check the high voltage terminal.
Replace the imaging unit.
Check and correct contacts.
Change transfer belt unit.
Go to next step.
To be continued on next page...
SAMSUNG ELECTRONICS