Disassembly, Assembly, Maintenance - Sharp AR-LC6 Service Manual

[5] DISASSEMBLY, ASSEMBLY, MAINTENANCE

1. Maintenance system table
✕: Checking (clean, replace or adjust as required) ❍: Cleaning L: Replace ∆: Adjust ✩: Lubricate ❏: Position shift
AR-M550U/M550N
(PM: 250K)
AR-M620U/M620N
(PM: 300K)
Unit name No. Part name
Paper feed 1 Paper pickup roller/
separation Paper feed rollers
section
2 Torque limiter
Transport 3 Transport rollers
section
4 Transport paper guides
Drive 5 Gears
section
6 Belt
Others 7 Sensors
(Note) Replacement reference: For replacement, refer to each paper feed port counter value.
Paper feed roller related section: 200K or 1 year
Torque limiter: 800K
2. Maintenance parts replacement procedures
A. Paper feed roller
1) Pull the lever, and open the upper cover.
2) Remove the screw, and remove the sheet.
3) Remove the pawl, and remove the pickup roller and the paper feed
roller.
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
When
calling
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
✕ ❍ ❍ ❍
✕ ✕ ✕ ✕
✕ ❍ ❍ ❍
❍ ❍ ❍ ❍
✕ ✩ ✩ ✩
✕ ✕ ✕
✕ ✕ ✕ ✕
AR-LC6 DISASSEMBLY, ASSEMBLY, MAINTENANCE 5 - 1
❍ ❍ ❍ ❍
✕ ✕ ✕ ✕
❍ ❍ ❍ ❍
❍ ❍ ❍ ❍
✩ ✩ ✩ ✩
✕ ✕ ✕ ✕
✕ ✕ ✕ ✕
4) Remove the screw, and remove the paper guide block.
5) Remove the pawl, and remove the reverse roller.
Remark
(Note)
(Note)
❍
✕
❍
❍
Gears (Specified position)
✩
✕
✕