DOWNLOAD Sharp AR-M550 (serv.man13) Service Manual ↓ Size: 7.63 MB | Pages: 26 in PDF or view online for FREE

Model
AR-M550 (serv.man13)
Pages
26
Size
7.63 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / (6c) Drive section, Filters, PWB section, Power section, Fan motors, Sensors and Switches
File
ar-m550-sm13.pdf
Date

Sharp AR-M550 (serv.man13) Service Manual ▷ View online

AR-M550/M620  DETAILS OF EACH SECTION  6 - 141
b-1. Remove the paper tray lift-up motor (paper feed tray 1)
1) Remove the rear cabinet.
2) Remove the plastic E-ring, the belt holding sheet, the belt, and the
pulley.
When installing, be careful of the direction of the belt holding sheet.
3) Disconnect the connector, and remove the lift-up motor unit.
4) Release the pawl, and remove the lift-up coupling. Remove the lift-
up spring from the paper tray lift-up motor.
b-2. Paper tray lift-up motor (Paper feed tray 2)
1) Remove the high voltage PWB unit. (See “a. Manual paper feed
drive unit” in the “[Manual paper feed drive section]”)
2) Disconnect the connector, and remove the lift-up motor unit.
3) Release the pawl, and remove the lift-up coupling. Remove the lift-
up spring from the lift-up motor.
b-3. Paper pickup solenoid (Paper feed tray 2)
1) Remove the high voltage PWB unit. (See “a. Manual paper feed
drive unit” in the “[Manual paper feed drive section]”)
2) Disconnect the connector, and remove the paper pickup solenoid
unit. 
3) Remove the paper pickup solenoid.
When installing, check that the solenoid plunger is inserted in the
arm.
AR-M550/M620  DETAILS OF EACH SECTION  6 - 142
[3/4 paper feed drive section]
(Replacement parts)
a. 3/4 paper feed drive unit
1) Remove the paper tray lift-up motor. (See “b-1. Paper tray lift-up
motor (Paper feed tray 3)” in this section)
2) Remove the parts and remove the drive joint plate.
When installing, be careful of the direction of the belt holding sheet.
When installing, temporarily fix the 1/2 paper feed drive unit to the
main unit, and install the drive joint plate. Then tighten the screw of
the drive unit securely. 
3) Remove the external outfit mounting plate.
4) Disconnect the connector and remove the harness clamp. Remove
the 3/4 paper feed drive unit.
Remove the screw which was indicated with the arrow mark.
a-1. Paper feed clutch (Paper feed tray 3)
1) Remove the 3/4 paper feed drive unit. (See “a. 3/4 paper feed drive
unit” in this section)
2) Remove the E-ring and remove the parts.
3) Remove the 3/4 drive frame lower.
No.
Unit
Parts
a
3/4 paper feed drive unit
1
Paper feed clutch (Paper feed 
tray 3)
2
Paper feed clutch (Paper feed 
tray 4)
3
Paper feed tray 3/4 paper 
transport clutch 1
b
Other
1
Paper tray lift-up motor (Paper 
feed tray 3)
2
Paper tray lift-up motor (Paper 
feed tray 4)
b-1
b-2
a-2
a
a-1
a-3
AR-M550/M620  DETAILS OF EACH SECTION  6 - 143
4) Disconnect the connector, and remove the paper feed clutch unit.
5) Remove the E-ring, and remove the paper feed clutch.
a-2. Paper feed clutch (Paper feed tray 4)
1)  Remove the 3/4 paper feed drive unit. (See “a. 3/4 paper feed
drive unit” in this section)
2) Remove the 3/4 drive frame lower. (See “a-1. Paper feed clutch
(Paper feed tray 3)” in this section)
3) Disconnect the connector, and remove the paper feed clutch unit.
4) Remove the E-ring, and remove the paper feed clutch.
a-3. Paper feed tray 3/4 paper transport clutch 1
1) Remove the 3/4 paper feed drive unit. (See “a. 3/4 paper feed drive
unit” in this section)
2) Remove the parts, and remove the belt.
3) Remove the 3/4 drive frame lower. (See “a-1. Paper feed clutch
(Paper feed tray 3)” in this section)
4) Disconnect the connector, and remove the paper feed tray 3/4
paper transport clutch 1 unit.
5) Remove the E-ring, and remove the paper feed tray 3/4 and the
paper transport clutch 1.
AR-M550/M620  DETAILS OF EACH SECTION  6 - 144
b-1. Paper tray lift-up motor (Paper feed tray 3)
b-2. Paper tray lift-up motor (Paper feed tray 4)
1) Remove the rear cabinet.
2) Disconnect the connector, and remove the paper tray lift-up motor
(paper feed tray 3) (A) and the paper tray lift-up motor (Paper feed
tray 4) (B).
3) Release the pawl, and remove the lift-up coupling. Remove the lift-
up spring from the lift-up motor.
A
B
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