Read Sharp AR-M550 (serv.man13) Service Manual online
AR-M550/M620 DETAILS OF EACH SECTION 6 - 138
a. 1/2 paper feed drive unit
1) Remove the main motor. (See “a-1. Main motor” in the “[Paper
feed/paper transport drive section]”)
2) Remove the high voltage PWB unit. (See “a. Manual paper feed
drive unit” in the “[Manual paper feed drive section]”)
3) Pull out the left door.
4) Disconnect the connector and remove the harness clamp. Remove
the DV fan unit.
5) Disconnect the connector and remove the harness holder.
6) Remove the plastic E-ring, the belt holding sheet, the belt, and the
pulley. Remove the joint plate.
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When installing, be careful of the direction of the belt holding sheet.
7) Remove the harness, and remove the drive joint plate.
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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.
main unit, and install the drive joint plate. Then tighten the screw of
the drive unit securely.
8) Disconnect the connector and remove the harness clamp. Remove
the 1/2 paper feed drive unit.
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Remove the screw which was indicated with the arrow mark.
a-1. Vertical paper transport motor
1) Remove the 1/2 paper feed drive unit. (See “a. 1/2 paper feed drive
unit” in this section)
2) Loosen the screw to release the tension, and remove the belt.
3) Remove the parts.
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