Summary - Ricoh G176 Service Manual

How does the machine know if the AIO is a new one?
The AIO has serial number information on a chip. The machine checks this number when
the AIO is placed in the machine.
Why is this feature disabled?
Ricoh does not support the practice of refilling old AIOs with fresh toner, so the feature is
disabled by default. But if field service stations know that this practice occurs in their
region, or they know a customer who is doing this, then they can enable the feature.

Summary

In the illustration below [A], [B], and [C] have these meanings:
[A] Heavy usage (jobs that require large amounts of toner)
Toner coverage is 5% more than normal. The machine detects toner near end
[B] based on main motor rotation before the toner end sensor detects that toner is
low.
Toner coverage is 5% lower than normal. The machine detects toner near end
based on main motor rotation before the toner end sensor detects that toner is
[C]
low. The toner overflow prevention mechanism is triggered before toner is
completely exhausted.
SM 6-15
Printing Process
G176/G177/G176L