Ricoh ADF DF7010 Field Service Manual page 25

Chapter 3
1 Exterior ..................................................... 24
(1) Removing the Document Tray .......... 24
(2) Removing the ADF ............................ 24
(3) Removing the ADF Front / Rear Cover .. 27
(4) Removing the ADF Document Cover .. 27
(5) Removing the ADF Unit .................... 28
(6)
Removing the ADF Document Cover Open/Close Switch
2 ADF Section ............................................. 30
(1) Removing the ADF Cover ................. 30
(2) Removing the ADF Document Sensor .. 30
(3) Removing the ADF Feed Shaft Assy ... 31
(4) Removing the ADF Feed Roller ........ 31
(5) Removing the ADF Feed Roller ........ 32
(6) Removing the ADF Document Jam Sensor .. 32
(7) Removing the Timing Belt ................. 33
(8) Removing the ADF Clutch A/B .......... 33
(9) Removing the ADF Cover Switch ..... 34
(10) Removing the ADF Stepping Motor .. 34
(11) Removing the ADF Document Lead Edge Sensor .. 35
• Always remove the power cord plug from the outlet before starting work.
• Cautions Regarding Disassembly and Assembly
• In principle, do not operate this machine with parts removed.
• When assembling:
• Unless specified otherwise, perform the disassembly procedure in reverse.
• Make sure that screw types (radius, length) and locations are correct.
• Be sure to use rosette washers when they are specified.
(Rosette washers are used with installation screws to prevent static electricity.)
• To ensure electrical current, a rosette washer is used with the installation screw on the
ground wire. Be sure to use the rosette washer during assembly.
Mechanism
3 Electrical System ..................................... 36
(1) Removing the ADF Cover ................. 36
(2) Removing the ADF Document Size PCB UNIT .. 37
.. 28
CAUTION
３