Read Sharp AR-M700 (serv.man22) Service Manual online
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 120
B. Operational descriptions
(1) Document feed, transport, scan, paper exit, and
operating speed
The document fed by the take-up roller is sent through the paper feed
roller and the transport roller to the resist roller section.
roller and the transport roller to the resist roller section.
In the resist roller section, the document lead edge and the scan start
position are synchronized. The document is transported to the scan
section. After being scanned, the document discharged to the docu-
ment exit tray by the paper exit roller.
position are synchronized. The document is transported to the scan
section. After being scanned, the document discharged to the docu-
ment exit tray by the paper exit roller.
The document transport speed varies depending on the scan mode
and the scan magnification ratio as shown below.
and the scan magnification ratio as shown below.
C. Maintenance and parts replacement
(1) Maintenance list
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
Scan mode
Magnification ratio
Document transport
speed
Single surface scan
Up to 117%
360mm/sec
Single surface scan
118% or above
220mm/sec
Duplex scan
Up to 100%
220mm/sec
Duplex scan
101% or above
110mm/sec
AR-M550U/N (PM: 250K)
When
calling
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
Remark
AR-M620U/N, AR-M700U/N
(PM: 300k)
(PM: 300k)
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Unit name
No.
Part name
SPF
Document
feed/
transport
section
feed/
transport
section
1
Document feed roller
✕
✕
✕
✕
✕
✕
✕
✕
✕
(Note 1)
2
Paper pickup roller (SPF)
✕
✕
✕
✕
✕
✕
✕
✕
✕
(Note 1)
3
Separation roller
✕
✕
✕
✕
✕
✕
✕
✕
✕
(Note 1)
4
No. 1 resist roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
5
Torque limiter
✕
✕
✕
✕
✕
✕
✕
✕
(Note 1)
6
Transport roller 1
❍
❍
❍
❍
❍
❍
❍
❍
❍
7
Transport roller 2
❍
❍
❍
❍
❍
❍
❍
❍
❍
(Note 1)
Replacement reference: For replacement, refer to each paper feed port counter value.
DSPF section : 100K or 1 year
1
1
2
6
4
7
1
3
5
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