Sharp AR-285 (serv.man13) Service Manual ▷ View online
2. Counter clear
Maintenance cycle setting
SIM21-01
Maintenance counter clear
SIM24-04
At drum replacement
Developing counter clear
SIM24-05
At developer replacement
OPC drum membrane decrease correction counter clear
SIM24-07
At drum replacement
Jam/trouble counter clear
SIM24-01
Paper feed counter clear
SIM24-02
At maintenance
DF/Scan/Stapler counter clear
SIM24-03
At maintenance
Zaurus print clear
SIM24-08
Printer, other counter clear
SIM24-09
3. Details of maintenance
A. Drum and its peripheral
(1) OPC drum
No.
Name
Work item
Cycle
Model
Remark
1
Drum
Check
80 K
Replace
160 K
Execute SIM 24-7 after replacement.
1
9 – 3
(2) OPC drum peripheral
No.
Name
Work item
Cycle
Model
Remark
1
Cleaner blade
Replace
80 K
2
Drum mark sensor
Clean
80 K
After cleaning, perform SIM 44-2.
3
Drum density sensor
Clean
80 K
After cleaning, perform SIM 44-2.
4
Drum separation pawl unit
Replace
80 K
Change the installing position at every 80 K
5
Toner reception seal
Replace
80 K
6
Toner reception auxiliary blad
Clean
80 K
1
2
3
4
5
6
[Note]
If the drum separation pawl is brought into contact with the
drum at a same position for 160K life period, the drum may
be worn down remarkably. In order to prevent against this,
change the installing position of the separation pawl at 80K
maintenance.
drum at a same position for 160K life period, the drum may
be worn down remarkably. In order to prevent against this,
change the installing position of the separation pawl at 80K
maintenance.
<Procedure>
When replacing the drum separation pawl unit, change the
marking position (which is fit with the positioning rib) from A
marking position (which is fit with the positioning rib) from A
→
B
→
A ... at every 80K to change the contact position
between the separation pawl and the drum.
A
B
9 – 4
(3) Transfer/separation charger
No.
Name
Work item
Cycle
Model
Remark
1
Charger wire
Replace
80 K
2
Charger case
Clean
80 K
(4) Discharge lamp
No.
Name
Work item
Cycle
Model
Remark
1
Discharge lamp
Clean
80 K
1
2
1
9 – 5
(5) Main charger
No.
Name
Work item
Cycle
Model
Remark
1
Charging plate (Saw teeth)
Replace
80 K
2
Screen grid
Replace
80 K
B. Developing section
(1) Developing box
No.
Name
Work item
Cycle
Model
Remark
1
DV seal
Check
80 K
For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.
DISASSEMBLY AND ASSEMBLY.
Replace
160 K
For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.
DISASSEMBLY AND ASSEMBLY.
2
DSD collar
Clean
80 K
For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.
DISASSEMBLY AND ASSEMBLY.
3
DV side seal F
Check
80 K
Replace
160 K
For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.
DISASSEMBLY AND ASSEMBLY.
4
DV side seal R
Check
80 K
Replace
160 K
For attachment position, refer to
DISASSEMBLY AND ASSEMBLY.
DISASSEMBLY AND ASSEMBLY.
1
2
2
4
2
3
1
9 – 6
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