Sharp AR-D28 (serv.man2) Service Manual ▷ View online
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 11
B. MAINTENANCE LIST
(1) MAINTENANCE LIST
*
1: Replacement reference: Use the counter value of each paper feed port as the replacement reference.
Paper feed section pickup roller, paper feed roller: 100K or 1 year
u
Check (Clean, replace, or adjust as necessary.)
F
Clean
b
Replace
v
Adjust
,
Lubricate
k
Move position
Unit name
No.
Part name
When
calling
100K
200K
300K
400K
Remark
Paper feed separation section
1
Paper feed rollers
u
u
u
u
u
*
1
Transport section
2
Transport rollers
u
F
F
F
F
Drive section
3
Gears
u
,
,
,
,
(Specified position)
4
Belts
u
u
u
u
u
Other
5
Sensors
u
u
u
u
u
3
3
3
1
5
4
4
2
1
4
5
5
5
1
5
4
2
1
4
5
5
5
1
5
4
5
2
5
2
1
4
5
5
5
2
2
3
3
3
3
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 12
(2) MAINTENANCE AND PARTS REPLACEMENT
(List of Replacement Parts)
a. Paper feed unit
1) Pull out the multi-purpose tray.
First, pull out the right side of the tray, and then pull out the left side.
2) Remove the left door.
3) Remove the paper feed unit.
No.
Unit
Parts
a
Paper feed unit
1
Pick up roller
b
2
Paper feed roller
b
3
Separate roller
b
4
Torque limiter
5
Belts
u
6
Upper limit sensor
u
7
Paper empty sensor
u
8
Paper transport sensor
u
9
Side door open/close sensor
u
10 Transfer rollers
u
b
Multi-purpose
drive unit
drive unit
1
Gears
u
,
c
Drive unit
1
Gears
u
,
2
Belts
u
d
Other
1
Rear edge size PWB
2
Remaining paper quantity sensor
u
3
Control PWBs
b-1
b
a-1
a-8
d-1
a-2
a-7
a-6
a-10
a-9
a-4
a-5
d-2
a
a-10
a-5
a-3
a-1
a-8
d-1
a-2
a-7
a-6
a-4
a-5
a
d-2
d-3
a-10
a-5
a-3
a-1
a-8
d-1
a-2
a-7
a-6
a-4
a-5
d-2
a
a-10
a-5
a-3
c-1
c-1
c-1
c-2
c
1)
2)
2)
1)
1)
8)
6)
6)
6)
7)
8)
5)
6)
4)
4)
5)
5)
5)
3)
3)
8)
6)
6)
3)
4)
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 13
a-1. Pick up roller
a-2. Paper feed roller
a-3. Separate roller
a-4. Torque limiter
1) Pull out the multi-purpose tray.
2) Remove the paper guide.
3) Disengage the roller hook, and remove the roller.
*
When installing the roller, check to ensure that the hook is securely
engaged in the groove.
4) After removing the roller, remove the torque limiter.
*
When installing the torque limiter, check to ensure that the pin is fully
inserted into the torque limiter groove.
a-5. Belts
1) Remove the paper feed unit.
2) Remove the pickup roller and paper feed roller.
a-6. Upper limit sensor
a-7. Paper empty sensor
a-8. Paper transport sensor
a-9. Side door open/close sensor
1) Remove the paper feed unit.
2)
a
3)
b
a
a
a
1)
1)
1)
1)
2)
3)
4)
3)
3)
4)
4)
a
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 14
a-10. Transfer rollers
1) Remove the left door.
b. Multi-purpose drive unit
1) Remove the rear cabinet.
2) Remove the multi-purpose tray drive section.
b-1. Gears
1) Remove the multi-purpose tray drive section.
c. Drive unit
1) Remove thr rear cabinet.
2) Remove the tandem tray drive section.
c-1. Gears
c-2. Belts
1) Remove the tandem tray drive section.
2)
1)
1)
a
b
b
a
b
a
a
2)
1)
1)
5)
3)
4)
4)
11)
9)
9)
9)
10)
10)
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