Ricoh G104, Service Manual

Page: 562 / 601

Process Control
G160/G161 6-12 SM
chip.
Toner End Recovery
The machine detects that the toner bottle was replaced if one of the following events
occurs during a toner end condition:
ƒ The top cover is opened and closed.
ƒ The main switch is turned off and on.
The machine then starts to supply toner to the development unit. After this, the machine
resets the toner end condition.
ƒ When “Toner near end” is detected, “Toner end recovery” is not done. If there is no
“Toner end” information in the ID chip, the machine detects that there is toner in
the toner bottle and “Toner end recovery” is done.
6.3.5 DEVELOPER INITIALIZATION
When the machine detects that a new PCU was installed, it initializes the developer.
To do this, the machine mixes the developer for a few seconds, and adjusts V
CNT
(control
voltage for TD sensor) to make V
T
(TD sensor output) equal to 2.5 ± 0.1 volts. The machine
stores this V
T
as V
REF
.
During PCU initialization, the machine automatically supplies toner because there is no
toner in the toner supply pipe at installation. Then the machine does the process control
self-check.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA