8 ] Disassembly, Assembly, Maintenance - Sharp AR-285 Service Manual

[8] DISASSEMBLY, ASSEMBLY, MAINTENANCE
1 Maintenance table
A. AR-250/280/281/285/286/335/336
Unit/Option name
Drum section OPC Drum
Drum
TC / AC
Discharge Lamp
Main charger
Developing section Developer Box
Developer
Toner cartridge
Waste toner bottle
Optical section Mirror base unit
Copy lamp unit
Rail
Glass
Scanner
OC
Paper feed section Manual feed tray
Paper tray
Transport section Transport
Suction
Fusing section Fusing unit 1
Fusing unit 2
Paper exit section 2 Tray paper exit unit Paper exit follower roller
Drive section
Filters
Print Quality
[Note 1] Rough guide of replacement intervals
The rollers should be replaced, using the values indicated by the counter of each paper feed port as a rough guide.
•
500-sheets cassette: 80 K or 2 years (this also applies to built-in 500-sheets container.)
•
Manual feed tray: 40 K or 2 years
•
Torque limitor of Manual feed tray: 120 K or 2 years
5 Check (Check, clean, replace or adjust according to necessity.)
Change ∆ Adjustment
Cleaning
Part name
Drum
Cleaner Blade
Drum mark sensor
Drum destiny sensor
Drum separation pawl
Toner reception seal
Toner reception auxiliary blade
Charger wire ( )
Charger case
Discharge Lamp
Charging plate (Saw blade)
Screen grid ( )
DV seal
DSD collar
DV side seal F
DV side seal R
Developer
Toner cartridge
Waste toner bottle
Mirror
Pulley
Refractor
Mirror
Rail
Table glass
Dust proof glass
White reference glass
Lens
Sensors
Drive belt
Drive wire
OC
Rollers ( )
Torque limitor
Rollers ( )
Brake spring
Torque limitor
Transport rollers ( )
Resist roller ( )
Suction belt ( )
Upper heat roller ( )
Lower heat roller ( )
Upper separation pawl ( )
Lower separation pawl ( )
Insulation bush
Thermistor
Upper heat roller gear
Gears
Transport rollers ( )
Gears
Belts
Lubrication
Call 80K 160K 240K
( ) ( )
( ) ( )
8 – 1
Installing position change
320K Remark
To be factory attached
Change the installing position at every 80
K
To be charged at the time of installation
To be charged at the time of installation /
To be replaced by user about 17.5 K
To be replaced by user about every 40 K
[Note 1]
[Note 1]
[Note 1]
(Specified positions)
8/6/1999