Rear Pressure Assy - Oki ML420 Maintenance Manual

3.3.21 Rear Pressure Assy

(1) Remove the upper cover (see 3.3.4 (1) – (5)).
(2) Remove the change lever and gears (see 3.3.17).
(3) Remove the paper pan (see 3.3.19).
(4) Remove the rear pressure roller 1.
(5) Rotate the release shaft 2 and move it to the left to detach the release shaft 2.
Match the Main Frame Rib A with the protrusion B of the Release Shaft.
(6) Remove rear pressure SP assy 3.
(7) To install, follow the removal step in the reverse order.
Note: (1) At mounting release shaft 2, pay attention to the gear engagement of release
(2) There are 5 Rear pressure Spring Assemblies. Use two pieces which have
(3) Make sure that the Release Shaft 2 will be on top of the Support spring 4.
(4) To assemble the Release Shaft 2, make sure that the protrusion of the switch
5
2
42113901TH01 Rev.3
shaft 2, change arm lever 6, change gear shaft 7.
larger spring diameter on the right side. Use three remaining pieces on the
left side (for PD427).
lever 5 is in the U groove of the Release Shaft 2.
1
3
3
2
3
Oki Data CONFIDENTIAL
A
B
4
7
6
2
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