Read Sharp AR-M256 (serv.man11) Service Manual online
AR-M256/M257/M258/M316/M317/M318/5625/5631 DISASSEMBLY, ASSEMBLY AND MAINTENANCE 10 - 1
[10] DISASSEMBLY, ASSEMBLY AND MAINTENANCE
1. Maintenance table
(For 25cpm)
✕: Check (Check, clean, replace or adjust according to necessity.)
❍: Cleaning ▲: Replace ✩: Lubricate
❍: Cleaning ▲: Replace ✩: Lubricate
Unit
Parts
75k
150k
225k
300k
375k
450k
525k
600k
Note
Process unit
Drum
▲
▲
▲
▲
▲
▲
▲
▲
Cleaner blade
▲
▲
▲
▲
▲
▲
▲
▲
Seal F/R
✕
✕
✕
✕
✕
✕
✕
✕
Drum frame unit
(Toner reception sheet)
(Toner reception sheet)
✕
✕
▲
✕
✕
▲
✕
✕
Usable for three PM cycles
MC unit
▲
▲
▲
▲
▲
▲
▲
▲
Separation pawl unit
✕
▲
✕
▲
✕
▲
✕
▲
Star ring
▲
▲
▲
▲
▲
▲
▲
▲
DV unit
Developer
▲
▲
▲
▲
▲
▲
▲
▲
DV blade
✕
▲
✕
▲
✕
▲
✕
▲
DV side seal N
✕
▲
✕
▲
✕
▲
✕
▲
DV side seal N2
✕
▲
✕
▲
✕
▲
✕
▲
DV side mylar
✕
▲
✕
▲
✕
▲
✕
▲
DV moquette
✕
✕
✕
✕
✕
✕
✕
✕
Toner sensor
✕
✕
✕
✕
✕
✕
✕
✕
Fusing unit
Fusing unit
✕
▲
✕
▲
✕
▲
✕
▲
Upper heat roller
❍
▲
❍
▲
❍
▲
❍
▲
Lower heat roller
❍
❍
❍
▲
❍
❍
❍
▲
Upper separation pawl
❍
▲
❍
▲
❍
▲
❍
▲
Upper cleaning pad
✕
▲
✕
▲
✕
▲
✕
▲
Lower separation pawl
❍
❍
❍
▲
❍
❍
❍
▲
Thermistor
❍
❍
❍
❍
❍
❍
❍
❍
Fuser gear
✩
▲
✩
▲
✩
▲
✩
▲
Upper heat roller bearing
✕
▲
✕
▲
✕
▲
✕
▲
Lower fuser bearing
✕
✕
✕
▲
✕
✕
✕
▲
Paper guide
❍
❍
❍
❍
❍
❍
❍
❍
Paper feed
Pickup roller
✕
✕
✕
✕
✕
✕
✕
✕
Changing criteria for parts: 100k
Paper feeding sheet
✕
✕
✕
✕
✕
✕
✕
✕
Pickup roller and feed roller
(RSPF)
(RSPF)
✕
✕
✕
✕
✕
✕
✕
✕
Transport unit Transport roller unit
❍
▲
❍
▲
❍
▲
❍
▲
Gear
✕
–
✕
–
✕
–
✕
–
Others
Paper feed rollers
❍
❍
❍
❍
❍
❍
❍
❍
Gears
✩
✩
✩
✩
✩
✩
✩
✩
Ozone filter
▲
▲
▲
▲
▲
▲
▲
▲
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