Read Sharp AR-M351U / AR-M451U (serv.man14) Service Manual online
AR-M351U/M451U, AR-M355U/M455U 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.
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