Toner End Detection - Gestetner G056 Service Manual

Toner End Detection

[A]: Toner tank
[B]: Toner end sensor
• The toner end sensor detects toner near-end by the voltage output.
Toner near-end:
When the CPU detects that the output from the toner density sensor is below a
certain level, the machine warns the user by displaying "Low on Toner" on the
operation panel.
Toner end:
After toner near-end is detected, the machine can print 200 more pages, then it
disables printing. At this time, "Replace Toner Cartridge" is displayed. The 200-
page limit can be changed with engine service mode ("Toner End Count").
The machine also displays "Replace Toner Cartridge" when the output from the
toner density sensor is below a certain level.
• To avoid waste toner tank overflow, the machine can also stop printing if the total
number of prints per cartridge exceeds a certain limit (default setting: 30k).
This number can be adjusted with "Waste Lim Count" in the engine service
mode.
SM 6-13
PRINTING PROCESS
[B]
G058D115.WMF
G056/G058
[A]