Toner Consumption Rate Detection; Toner Life Detection; Toner Near-Empty Condition Detection; Toner Empty Condition Detection - Konica Minolta bizhub C35 Service Manual

DRAFT
Theory of operation Ver. 1.0 Feb. 2010
9.3.5

Toner consumption rate detection

• The toner consumption rate is calculated based on the toner supply time (the number of
times the toner supply clutch is energized).
• The toner level (approximate threshold) can be checked with Statistics page, control
panel, or PWSC.
9.3.6

Toner life detection

• A near life (near-empty) condition of the toner cartridge is detected based on the toner
supply time (the number of times the toner supply clutch is energized) of each color of
toner.
• When a near life condition is detected, a corresponding message will appear on the con-
trol panel.
• A life (empty) condition of the toner cartridge is detected by the toner level sensor.
• If the toner level sensor detects a life (empty) condition and toner is not replenished after
the lapse of a predetermined period of time thereafter, the main body determines that
there is an empty condition, giving a corresponding message on the control panel and
stopping to operate.
9.3.7

Toner near-empty condition detection

• Different approximate threshold values apply for the toner near-empty condition (toner
level) detection according to the type of toner cartridge: the in-box cartridge shipped with
the main body and the replacement toner cartridge.
Toner cartridge: Equivalent to 6,000 printed pages
*: Based on the standard original with a coverage rate of 5%
• The toner near-empty condition is reset when a new toner cartridge is detected.
9.3.8

Toner empty condition detection

• The toner level sensor is used for the detection.
An empty condition is determined, if toner is not replenished even after the lapse of a
predetermined period of time after a toner replenishing sequence is started.
• The toner empty condition is reset when a new toner cartridge is detected.
9.3.9

Monochrome prints

• The color print is disabled when any of the C, M, and Y toner cartridges is empty. Mono-
chrome print only is, however, enabled if the K toner cartridge is not empty.
• The monochrome print is also controlled by the ordinary near-empty and empty condition
detection methods.
Toner cartridge
9. TONER SUPPLY SECTION
Toner level (target value)
30%
27