Sharp AR-M700 (serv.man21) Service Manual ▷ View online
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 105
(2) Maintenance list (AR-M700N/U)
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
AR-M700U/N (PM: 300K)
When
calling
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Remark
Unit name No.
Part name
Fusing
section
section
1
Heat roller
✕
▲
▲
▲
▲
▲
▲
▲
▲
2
Pressure roller
✕
▲
▲
▲
▲
▲
▲
▲
▲
3
Sub heat roller
✕
▲
▲
▲
▲
▲
▲
▲
▲
4
Cleaning sheet
✕
▲
▲
▲
▲
▲
▲
▲
▲
6
Heat roller separation pawl
✕
▲
▲
▲
▲
▲
▲
▲
▲
7
Pressure roller separation pawl
✕
▲
▲
▲
▲
▲
▲
▲
▲
8
Thermistor
✕
✕
✕
✕
✕
✕
✕
✕
✕
Paper dust removal
is required.
is required.
9
Heat roller gear (Grease)
✕
✕
✕
✕
✕
✕
✕
✕
UKOG-0235FCZZ
10 Sub heat roller bearing
▲
▲
▲
▲
▲
▲
▲
▲
11 Paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
12 Shaft (Grease)
✩
✩
✩
✩
✩
✩
✩
✩
UKOG-0235FCZZ
13 Oil roller
✕
▲
▲
▲
▲
▲
▲
▲
▲
14 Cleaning plate
✕
▲
▲
▲
▲
▲
▲
▲
▲
15 CL roller bearing
✕
▲
▲
▲
▲
▲
▲
▲
▲
1
8
3
11
6
7
7
6
2
13
4
1
8
8
10
12
12
9
14
12
12
10
15
15
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 106
(3) Maintenance and parts replacement
(Replacement parts)
■
AR-M550N/U, AR-M620N/U
■
AR-M700N/U
a. Fusing unit
1) Open the left door unit.
2) Remove the blue fixing screw on the front side.
No.
Unit
Parts
a
Fusing unit
1
Heat roller separation pawl
✕▲
2
Pressure roller separation pawl
✕▲
3
Heat roller
✕▲
4
Heater lamp 1
5
Heater lamp 2
6
Heat roller gear
✕▲
7
Thermistor (upper)
✕▲
8
Pressure roller
✕▲
9
Cleaning scraper
(AR-M550N/U, AR-M620N/U)
(AR-M550N/U, AR-M620N/U)
✕▲
10
Oil roller (AR-M700N/U)
✕▲
11
CL roller bearing (AR-M700N/U)
✕▲
12
Paper guide
❍
13
Cleaning plate (AR-M700N/U)
✕▲
14
Sub heat roller
✕▲
15
Sub heat roller bearing
▲
16
Thermistor (lower)
✕▲
17
Sub heater lamp
18
Thermostat 1
19
Thermostat 2
20
Thermostat 3
21
Discharge brush
❍
22
Cleaning sheet
✕▲
1
1
a-7
a-3
a-6
a-15
a-15
a-9
a-3
a-3
a-12
a-21
a-1
a-1
a-1
a-2
a-2
a-2
a-8
a-9
a-22
a-14
a-17
a-20
a-20
a-13
a-16
a-4
a-5
a-7
a-7
a-18
a-19
1
a-7
a-3
a-6
a-15
a-15
a-10
a-3
a-3
a-12
a-21
a-1
a-1
a-1
a-2
a-2
a-2
a-8
a-10
a-22
a-14
a-17
a-20
a-20
a-16
a-13
a-16
a-4
a-5
a-7
a-7
a-18
a-19
a-11
a-11
2
1
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 107
3) Release the fixing members on the rear frame side.
4) Release the right and left lock levers of the fusing unit to remove
the fusing unit.
a-1. Heat roller separation pawl
1) Remove the fusing unit. (See “a. Fusing unit” in this section)
2) Remove the heat roller separation pawl unit.
3) Remove the heat roller separation pawl.
a-2. Pressure roller separation pawl
1) Remove the fusing unit. (See “a. Fusing unit” in this section)
2) Open the pressure roller separation pawl unit.
3) Remove the pressure roller separation pawl.
a-3. Heat roller
a-4. Heater lamp 1
a-5. Heater lamp 2
a-6. Heat roller gear
a-7. Thermistor (upper)
1) Remove the fusing unit. (See “a. Fusing unit” in this section)
2) Alternately tighten the screws to release pressure.
• Caution for handling at a high temperature
(Hold the both sides of the unit.)
• When removing the unit, be careful not to tilt it, and remove slowly.
(This is because the unit includes paper dust scraped by the
scraper.)
scraper.)
NOTE: When installing the unit, install to the standard position
.
(If the picture quality may be degraded damaged by the roller
damage, change the installing position to
damage, change the installing position to
.)
1
1
Marks
Marks
B
B
A
A
A
B
NOTE: When tightening the screws and releasing the pressure, do
not apply any force to the shaded area. (Otherwise, the PG on
the paper entry side may be deformed.)
the paper entry side may be deformed.)
1
: Feb. 6 2004
1
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 108
4) Remove the lamp fixing screw.
5) Remove the heater lamp 1 and 2.
6) Remove the heat roller unit.
7) Clean the upper thermistor.
8) Remove the ring to remove the gear bearing.
[Caution when Attaching]
• Affix the lamp fixing screw from the opposite side of the drive.
3) Remove the screws to open the fusing unit.
• When assembling, tighten the screws in the front side (drawer CN
side) and then in the rear side (gear side) in this sequence.
• Check that the screw is securely tightened again. (If the screw is
loose, the contact becomes defective to cause an overcurrent and
overheating.)
overheating.)
1
1
Rear side
Front side
NOTE: Be careful of deformation of the plate spring of the ther-
mistor.
NOTE: The thermistor position can be changed by shifting the
thermistor mounting plate. (If the picture quality may be
degraded damaged by the roller damage, change the
installing position to
degraded damaged by the roller damage, change the
installing position to
.)
1
1
B
B
A
B
A
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