Auxiliary Toner Replenishing Control For Developing Unit - Konica Minolta BizHub C360 Service Manual

12. TONER SUPPLY SECTION
12.3.8

Auxiliary toner replenishing control for developing unit

• If the T/C ratio detected by the TCR sensor is equal to, or lower than, a predetermined
value at the start of a print cycle, initiation of the print cycle is prohibited and the develop-
ing unit is replenished with toner from the toner hopper until the T/C value reaches the
predetermined value (for a period of about 4 min. maximum).
• The auxiliary toner replenishing control for developing unit is terminated as soon as the
predetermined T/C ratio is recovered.
It is also terminated if the auxiliary toner replenishing control for developing unit is
repeated ten sets. The control is also terminated when a toner empty condition is
detected in the toner cartridge.
Initial developing unit agitation time
Toner replenishing time
T/C ratio detection time
Developing unit agitation time during replenishing
Developing unit agitation time after replenishing
Number of times replenishing control (replenish + agitation) is
repeated per one set of auxiliary toner replenishing control
Max. number of sets the auxiliary toner replenishing control for
developing unit is repeated
10 sec. 1.3 sec.
Initial developing unit agitation
T/C ratio detection
Repleni-
Agitation
shment
(0.7 sec.) (2.7 sec.)
98
Description
One set (Max: ten sets)
20.2 sec. 1.3 sec.
Replenishing control
T/C ratio detection
Repleni- Repleni-
Agitation Agitation Developing unit agitation
shment shment
(0.7 sec.) (2.7 sec.) (0.7 sec.) (2.7 sec.) after replenishing (10 sec.)
20.2 sec.
Theory of Operation Ver. 1.0 Jul. 2009
Operation time
20.2 sec. 1.3 sec.
Replenishing control Replenishing control
T/C ratio detection
10 sec.
0.7 sec.
1.3 sec.
2.7 sec.
10 sec.
3 times
10 sets
20.2 sec. 1.3 sec.
T/C ratio detection
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