Ricoh Di-C1.5a Manual page 53

Di-C1.5 Training
Check the Toner Hopper Shutter
The toner hopper shutter must be fully closed (as shown
on the left).
If the toner hopper shutter is not fully closed and the inlet
of the toner hopper unit is visible (as shown on the right),
the toner bottle cannot be installed properly.
Slide 53
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