Cleaning Roller; Imaging Unit Detection; Imaging Unit Consumption Rate Detection; Imaging Unit Life Detection - Konica Minolta BIZHUB C3100P Service Manual

• As compared with the charge wire, the charge roller applies a lower voltage and thus produces a smaller amount of ozone. The main body
is not therefore mounted with any ozone filter.
• The charge roller is driven to follow the movement of the photo conductor.
Charge wire
(Electric dissociation: High)
Photo conductor

3.3.3 Cleaning roller

• The cleaning roller removes toner stick to the charge roller.
• The cleaning roller rotates by following the movement of the charge roller.
[1] Charge roller

3.3.4 Imaging unit detection

• Different imaging unit detection methods apply according to the type of imaging unit: the in-box imaging unit shipped with the main body and
the replacement imaging unit.
Control also varies when the life is reached. The following describe details.
(1) In-box imaging unit
• The in-box imaging unit has no imaging unit detection board and the toner level sensor is used to determine whether the imaging unit is
mounted or not.
• The detection is made during the print cycle and image stabilization sequence.
• A condition of the imaging unit yet to be mounted as detected during the print cycle is detected as a paper size error or a paper jam.
The condition is detected as a paper size error or a paper jam, though paper of a small size may be fed out.
(2) Replacement imaging unit
• The main body accesses the imaging unit detection board when the front door is opened and closed, thereby determining whether or not
the imaging unit is mounted.
• After the imaging unit has been detected, the main body then determines whether the imaging unit is new or not.
(3) Combination of alternative (used) imaging unit
• It is prohibited to use the alternative (used) imaging unit among the same model.
NOTE
• Whenever an imaging unit is replaced, it must be replaced with an unused new one. If the imaging unit is replaced with a used
one, the message may not be cleared or the consumption rate of the imaging unit is not correctly reflected.

3.3.5 Imaging unit consumption rate detection

• The consumption rate is calculated based on the period of time through which the transport motor and the color PC drum motor are
energized and displayed on the statistics page, control panel and PageScope Web Connection.

3.3.6 Imaging unit life detection

NOTE
• When the "life end display" appears, the machine prohibits all print cycles.
The service mode does not allow "life display" to be set to be "disabled" or "life end display" to be set to be "disabled (but
printing enabled)". It should, however, be noted that the service mode allows the number of printed pages to be produced
between "life display" and "life end display" to be changed.
• Life-related display default settings
Charge wire
[2]
O THEORY OF OPERATION bizhub C3100P > 3. PHOTO
Charge roller
(Electric dissociation: Low)
Charge roller
Photo conductor
[1]
[2] Cleaning roller
O-8
CONDUCTOR SECTION