Sharp AR-M700 (serv.man20) Service Manual ▷ View online
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 93
D. Maintenance and parts replacement
(1) Maintenance list
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
AR-M550U/N (PM: 250K)
When
calling
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
Remark
AR-M620U/N, AR-M700U/N (PM: 300k)
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Unit name No.
Part name
Scanner
section
section
1
Lens
❍
❍
❍
❍
❍
❍
❍
❍
2
CCD
❍
❍
❍
❍
❍
❍
❍
❍
3
Sensor
❍
❍
❍
❍
❍
❍
❍
❍
4
CIS filter glass
❍
❍
❍
❍
❍
❍
❍
❍
5
Table glass
❍
❍
❍
❍
❍
❍
❍
❍
6
Slit glass (SPF scan mode)
❍
❍
❍
❍
❍
❍
❍
❍
7
Reflector
❍
❍
❍
❍
❍
❍
❍
❍
8
Scanner lamp
❍
❍
❍
❍
❍
❍
❍
❍
9
Document mat
❍
❍
❍
❍
❍
❍
❍
❍
10
Rail (Grease)
✩
✩
✩
✩
✩
✩
✩
✩
11
Drive belt
✕
✕
✕
✕
✕
✕
✕
✕
12
Drive wire
✕
✕
✕
✕
✕
✕
✕
✕
1
5
12
1
2
10
9
7
3
3
10
3
8
3
4
6
11
12
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 94
(2) Maintenance and parts replacement
(Replacement parts)
a. Scanner unit
1) Remove the SPF unit. (See “a. SPF unit” in the “SPF section”)
2) Remove the table glass. (See “a-1. Table glass” in this section)
3) Remove the panel lock connector. (For dehumidifier heater)
4) Remove the flat cable, the connector, and harness from the cable
clamp.
5) Remove the right side cabinets upper and lower.
6) Remove the screw and the fixing plate.
No.
Unit
Parts
a
Scanner
unit
unit
1
Table glass
❍
2
Slit glass (SPF scan mode)
❍
3
Mirror
❍
4
Lens
❍
5
Reflector
❍
6
Scanner dry heater
7
Rails
✩
8
Drive belt
✕
9
Drive wire
✕
10
Pulley
✕
a
Scanner
unit
unit
11
Scanner lamp
❍
12
Inverter PWB
13
CCD lens unit
❍
14
Scanner relay PWB
15
Scanner motor
16
Scanner FLASH PWB
17
Scanner control PWB
18
SPF open/close detector
19
Scanner home position sensor
detector
detector
20
Document size detection light emitting
PWB
PWB
21
Document size detection light
receiving PWB
receiving PWB
a-1
a-2
a-3
a-8
a-4
a-5
a-6
a-9
a-9
a-7
a-7
a-10
a-10
a-11
a-12
a-13
a-14
a-15
a-16
a-17
a-18
a-19
a-20
a-21
a-22
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 95
7) Remove the tray.
8) Remove the left side cabinets front and rear.
9) Remove the screw.
10) Hold the both sides of the scanner base, and slide it toward you to
remove.
a-1. Table glass
a-2. Slit glass (SPF scan mode)
3) Remove the right glass holder.
4) Using a cloth, etc. on the right glass surface to prevent fingerprints,
remove the cover.
5) Remove the white reference glass unit.
(When executing internal maintenance of the scanner)
1) Loosen the screws in the hinge section, and lower the two metal
fixtures.
2) Open the SPF, and slide the SPF drop-preventing stopper pin of
the Hinge L to the drop preventing position.
NOTE: When assembling or disassembling the table glass, check that
the glass does not cover the steel plate on the front side.
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1
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 96
a-3. Mirror
a-4. Lens
a-5. Reflector
1) Remove the table glass. (See “a-1. Table glass” in this section)
2) Move the lamp unit.
3) Clean mirrors 2 and 3.
5) Remove the lens cover.
6) Cary out cleaning of the lens and CCD.
7) Cary out cleaning of the reflector.
a-6. Scanner dry heater
1) Remove the table glass. (See “a-1. Table glass” in this section)
4) Remove the harness clamp and the dark box.
NOTE: When attaching the dark box cover, check to insure that the
blade spring is in the original position.
1
2) Shift the lamp unit, and remove the dark box. (See “a-3. Mirror” in
this section)
3) Remove the dark box and remove the harness clamp, and remove
the scanner dry heater.
1
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