Sharp AR-D28 (serv.man2) Service Manual ▷ View online
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 3
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
4
3
3
1
5
4
5
2
5
2
4
5
5
4
5
5
2
5
1
4
5
2
2
1
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 4
(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 multi-purpose 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
u
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
T a n d e m t r a y
paper feed unit
paper feed unit
1
Pick up roller
b
2
Paper feed roller
b
3
Separate roller
b
4
Torque limiter
u
5
Belts
u
c
Transfer unit
1
Transfer roller
u
d
Multi-purpose
drive unit
drive unit
1
Gears
u
,
e
Tandem drive
unit
unit
1
Gears
u
,
2
Belts
u
f
Other
1
Rear edge size PWB
2
Remaining paper quantity sensor
u
3
Control PWB
4
Sensor PWB
5
Paper transfer sensor
u
6
Tandem tray open/close sensor
u
a-1
b
c
b-2
b-1
c-1
b-2
b-6
a-8
f-1
a-2
a-7
b-1
b-3
c-1
b-4
b-5
b-3
b-4
b-4
a-6
a-10
a-9
a-4
f-2
f-4
f-5
f-5
f-4
f-3
f-3
b-5
a-5
f-2
f-2
a
a-10
a-5
a-3
b-1
b
e-2
e
e-1
e-1
1)
2)
2)
1)
1)
8)
6)
7)
6)
3)
4)
5)
AR-D28/D27/MU2
DISASSEMBLY AND ASSEMBLY, MAINTENANCE
7 – 5
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.
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 – 6
a-10. Transfer rollers
1) Remove the paper feed unit.
b. Tandem tray paper feed unit
1) Remove the stopper screw, and pull out the large capacity tray.
2) Remove the left door.
3) Remove the tandem paper feed unit.
b-1. Pick up roller
b-2. Paper feed roller
b-3. Separate roller
b-4. Torque limiter
1) Remove the stopper, and pull out the large capacity tray.
2) Disengage the roller hook, and remove the roller and the torque lim-
iter.
• Tandem tray 1
• Tandem tray 2
*
When installing the roller, check to ensure that the hook is securely
engaged in the groove.
engaged in the groove.
*
When installing the torque limiter, check to ensure that the pin is fully
inserted into the torque limiter groove.
a
b
b
a
b
a
1)
2)
2)
2)
1)
1)
1)
2)
2)
2)
b
a
a
b
2)
a
2)
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