Sharp AR-651 Service Handbook page 294

Defective area
Developer material/
Toner/Photoconductive
drum
Cleaning roller
Fuser roller
Cleaning web
Cleaning blade
Toner recovery auger
Recycle unit
AR-651/810 TROUBLESHOOTING
Step Check Items
1 Using the specified developer material, Use the specified developer material,
toner and photoconductive drum?
2 Is the cleaning roller damaged or has Replace the roller.
it reached its PM life?
3 Is the pressurization of the cleaning
roller normal?
4 Are there bubble-like scratches on
the fuser roller (188mm pitch on the
printed image)?
5 Has the fuser roller reached its PM life? Replace it.
6 Is the pressurization of the fuser roller Check and adjust the pressurization
normal?
7 Is the temperature of the fuser roller
normal?
8 Is the pressurization of the cleaning
web normal?
9 Is the cleaning web transported
normally?
10 Has the cleaning web reached its
PM life?
11 Using the specified cleaning web?
12 Is the blade in proper contact with the drum?
13 Has the cleaning blade been turned
up?
14 Is the toner recovered normally?
15 Is the recycle unit installed properly?
16 Is the recycle toner transport
motor performed?
17 Is the hopper motor performed?
Prescription
toner and photoconductive drum.
Check and correct the
pressurization mechanism.
Replace the fuser roller.
Check and adjust the temperature
control circuit.
mechanism.
Check the adjustment value of
fuser roller temperature.
(08-410, 411, 883)
Check the installation state of the
cleaning web mechanism.
Check the drive system of the
cleaning web.
Check and correct the setting.
(08-940)
Replace it.
Use the specified cleaning web.
Check the blade.
Replace the blade.
Check and replace the drum
if necessary.
Clean the toner recovery auger.
Check the pressure of the cleaning blade.
Check and correct the installation.
Check if the connector comes off.
Replace the motor if necessary.
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Remarks