Ricoh DD 5450, Field Service Manual

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Chapter 4 Paper Feed Section
(7) Removing the Timing Roller
1. Remove the paper eject unit.
2. Remove the rear cover.
3. Remove the drum unit.
4. Remove the sub-frame B.
5. Remove the spring.
6. Remove the two E-rings to remove the link.
7. Release the stopper of the release lever.
8. Remove the three screws to remove the
bearing stopper and the spring.
(2pcs:S tight hexagon head WH rounded end
screw 4 x 8)
(1pce:Pan head screw with spring plain washer
4 x 12)
9. Remove the two screws. Lifting the guide A
unit, remove the timing roller from the rear side
(opposite of operation side).
(S tight hexagon head WH rounded end screw
3 x 6)
● After installing the timing roller, separate
the press roller from the drum and then set
the drum.
● Adjust the sensitivity of the double feed
detect sensor after it is installed.
6. Remove the drum unit.
7. Remove the four cord clamps and remove the
two screws, and then remove the bracket.
(Hexagon head upset screw with spring washer
4 x 8)
8. Remove the three photo-receiving sensors.
● 3 screws (3 places: 1 screw each)
(Pan head screw with spring plain washer 3 x
14, washer 3, nut 3)
(Pan head screw with spring plain washer 3 x
14)
(Pan head screw with spring plain washer 3 x
14, washer 3 x 12 x 1.0)
● 3 connectors (3 places: 1 connector each)
Reinstallation
Reinstallation
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Screw
Cord clamp
Screw
Bracket
● Photo receiving side
Paper top detect sensor
Signal sensor
Link
Stopper
Spring
Spring
E-ring
E-ring
Bearing stopper
Bearing stopper
Guide A unit
Timing roller
→See Page212
→See Page172
→See Page206
4
IMPORTANT
IMPORTANT
Screw