Samsung SCX 6322DN Service Manual - Page 95

Irregular Density

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Troubleshooting Irregular Density OK after taking out and NO rocking the toner cartridge? YES When gray pattern printing, NO irregular density persists? YES transfer/ charge/developing NO Defective agitator in the toner supplying part voltage drops while of the toner cartridge printing? ->Replace the toner cartridge Check if the 'guide deve YES spring' works OK and repair/repalce Check high voltage output and repair/ replace terminals, HVPS It is over the guaranty life of toner cartridge (Check the counter and replace it) PTL lamp NO works OK? YES Replace lamp Any obstacles NO on the PTL lamp? YES Bad images NO around the no image area? YES Irregularity of toner supply from the toner cartridge -> Replace the toner cartridge Clean the window of PTL Light distortion due to the mirror ruined or LSU's diffused reflection -> Replace LSU 6-18 Service Manual Samsung Electronics

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Service Manual
Troubleshooting
6-18
Samsung Electronics
Irregular Density
OK after
taking out and
rocking the toner
cartridge?
It is over the guaranty
life of toner cartridge
(Check the counter
and replace it)
When gray
pattern printing,
irregular density
persists?
PTL lamp
works OK?
Any obstacles
on the PTL lamp?
transfer/
charge/developing
voltage drops while
printing?
Defective agitator in
the toner supplying part
of the
toner cartridge
->Replace the
toner cartridge
Check if the 'guide deve
spring' works OK and
repair/repalce
Check high voltage
output and repair/
replace terminals, HVPS
Replace lamp
Clean the window of PTL
Bad images
around the no image
area?
Irregularity of toner
supply from the
toner cartridge
-> Replace the
toner cartridge
Light distortion due to
the mirror ruined or
LSU's diffused reflection
-> Replace LSU
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES