Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man12) Service Manual ▷ View online
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 57
D. Maintenance and parts replacement
(1) Maintenance list
(2) Maintenance and parts replacement
Unit name
No.
Part name
When
calling
100K
200K
300K
400K
500K
600K
700K
800K
Remark
DSPF
section
section
1
Pick-up roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
2
Paper feed roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
3
Separation mylar lower
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
4
Separation pad
❍
❍
❍
❍
❍
❍
❍
❍
❍
Note 2
5
PS roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
6
Paper exit roller
❍
❍
❍
❍
❍
❍
❍
❍
❍
7
Sensors
❍
❍
❍
❍
❍
❍
❍
❍
Clean with air.
Note 2: Replacement reference: Replace by using the SPF counter value as an indication.
Paper feed section pickup roller, paper feed roller, separation pad, separation lower mylar lower:
100K or 1 year
100K or 1 year
3
7
6
7
4
1
2
5
7
No.
Unit
Parts
a
SPF unit
1
SPF document stopper solenoid
2
SPF document resist front
sensor
sensor
3
SPF paper feed cover sensor
4
SPF document set sensor
5
SPF control PWB
6
SPF original length sensor 1
7
SPF original length sensor 2
8
SPF original width detection
volume PWB
volume PWB
9
Pick-up roller
❍
10
Paper feed roller
❍
11
CIS unit
12
CIS control PWB
13
SPF open sensor
14
SPF original exit sensor
15
Paper exit roller
❍
16
SPF motor
17
Resist roller
18
Resist roller clutch
19
SPF original paper feed solenoid
20
SPF original paper feed clutch
21
Separation mylar lower
❍
22
Separation pad
❍
a-21
a-22
a-14
a-15
a-3
a-11
a-16
a-1
a-19
a-12
a-5
a-6
a-7
a-10
a-9
a-2
a-4
a-18
a-20
a-8
a-17
a-13
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 58
a. SPF unit
1) Remove the rear cabinet of the scanner section.
2) Disconnect the connector.
3) Disconnect the grounding wire.
4) Slide the SPF unit to the bottom, then remove it.
a-1. SPF document stopper solenoid
1) Remove the upper transport unit cover.
2) Remove the stopper solenoid.
a-2. SPF document resist front sensor
a-3. SPF paper feed cover sensor
a-4. SPF document set sensor
1) Remove the upper transport unit cover.
2) Remove the sensors.
a-5. SPF control PWB
1) Remove the SPF PWB, and remove the SPF control PWB.
1)
1)
2)
3)
3)
4)
5)
5)
5)
6)
7)
2)
3)
4)
2)
1)
1)
2)
1)
1)
1)
2)
1)
2)
3)
4)
3)
4)
3)
4)
1)
2)
3)
3)
3)
4)
5)
4)
4)
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 59
a-6. SPF original length sensor 1
a-7. SPF original length sensor 2
1) Remove the OC cover.
2) Remove the original length sensor cover, and remove the sen-
sor.
a-8. SPF original width detection volume PWB
1) Remove the OC cover.
2) Remove the original length sensor cover.
3) Remove the volume cover and remove the volume.
(SPF original width detection volume installation)
<1> Extend the original guide to the maximum position.
<2> Adjust so that the mark on the width detection pinion gear is
fitted with the mark on the volume mounting plate.
<3> Fix the mounting plate with the screw.
∗
When the rotational volume sensor is replaced, the sensor value
must be adjusted to the paper size (mark on the tray).
(Refer to the SIM 53-6 or 53-7.)
must be adjusted to the paper size (mark on the tray).
(Refer to the SIM 53-6 or 53-7.)
a-9. Pick-up roller
a-10. Paper feed roller
1) Remove the upper transport unit cover.
2) Remove the paper feed roller cover.
3) Remove the hook of each roller, and remove each roller.
1)
1)
2)
3)
4)
3)
1)
1)
2)
3)
3)
4)
4)
1)
1)
2)
3)
4)
1)
2)
3)
4)
MX-M350/M450 N/U MAINTENANCE AND DETAILS OF EACH SECTION 7 - 60
a-11. CIS unit
a-12. CIS control PWB
1) Remove the upper transport unit cover.
2) Remove the CIS unit.
∗
When the CIS unit is replaced, the CIS shading adjustment must
be performed. (Refer to the descriptions of ADJUSTMENTS.)
be performed. (Refer to the descriptions of ADJUSTMENTS.)
3) Remove the harness, the cover, the earth wire, and remove
the CIS control PWB.
For easy installation of the cover, slide the earth line to the con-
nector side when attaching.
nector side when attaching.
a-13. SPF open sensor
1) Remove the open sensor.
a-14. SPF original exit sensor
1) Remove the paper exit sensor.
a-15. Paper exit roller
1) Remove the original paper feed unit.
2) Remove the paper exit roller gear.
3) Remove the paper exit frame, and remove the paper exit roller.
Note: Never touch the screws marked (a). These screws are for
factory use only. The CIS is adjusted in the factory with
special tools.
special tools.
a
a
a
1)
2)
1)
2)
1)
2)
3)
4)
5)
6)
1)
2)
3)
3)
3)
4)
5)
7)
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