Removing The Paper Feed Drive Unit - Riso RZ3xx Series Technical Manual

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7. Removing the Paper Feed Drive Unit

(1) Switch off the machine power, remove the rear cover, and then swing open the PCB bracket of the power
supply and mechnical control PCB.
(2) Insert jig (8mm dia.) into the position-B phase alignment hole on the main shaft assembly of the main
drive.
Jig shaft ( 8 mm dia.) inserted into position-B
phase alignment hole on the main shaft
assembly.
(3) Remove the following springs :
- Sector gear spring
- Guide roller pressure spring
- Timing roller bearing assembly
- Paper feed drive cover
- Sector gear assembly
- Continues on next page -
Timing roller bearing assembly
RISO Inc. Technical Communications
CHAPTER 5: SECOND PAPER FEED SECTION
Paper feed drive cover
Guide roller pressure spring
[ 5 - 13 ]
0520
Sector gear assembly
0521
Sector gear spring
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