Fig. 4-49 Replenishment Lever Adjustment - Canon NP-70 Service Manual

NP-70
4~1
a)
Remove the roller lowering wires (on the right and left end positions) from the roller.
b) Disengage the spring from its retainer. As the spring is rightly stretched, use care when
disengaging.
c)
Remove both of the pivot housings with their attached hardware holding the sgeezing
roller.
d) Pull the roller, with its attaching hardware, from the developer reservoir, grasping both
ends of the roller. Be careful not to damage the roller cleaner when removing the roller.
e) Remove the stop screws to detach the roller from its associated hardware.
When installing the squeezing roller perform the previous steps in reverse order.
4.6-4 REPAIR/SERVICING ACTIONS
1) TONER REPLENISHMENT LEVER ADJUSTMENT
To ensure that toner replenishment actions are adequate, perform the following (reference-
Fig. 4-49)
a)
Remove the Developer Assembly from the copier and detach the cap from the toner bottle.
b) Fit this cap into the valve entry hole so as to simulate the same condition as that of a
toner bottle inserted.
c) Pull the replenishment lever and observe the amount of movement of the valve shaft in the
cap.
d) If the valve movement is greater than 2.5 mm upward when the lever is tripped, adjust the
lever position away from the control lever.
e)
If the valve movement is less than 2.5 mm upward when the lever is tripped, adjust the
lever position closer to the control lever.
Control Lever
Toner Replenishment
Lever
Retaining Screws
Fig. 4-49 Replenishment Lever Adjustment
© CANON INC.
Second Printing~lune, 1974