Operation; Imaging Unit Detection; Imaging Unit Consumption Rate Detection; Imaging Unit Life Detection - Konica Minolta bizhub C35 Service Manual

DRAFT
Theory of operation Ver. 1.0 Feb. 2010

10.2 Operation

10.2.1

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.
A. In-box imaging unit
• The in-box imaging unit has no CSIC board and the toner level sensor is used to deter-
mine 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 misfeed.
The condition is detected as a paper size error or a paper misfeed, though paper of a
small size may be fed out.
B. Replacement imaging unit
• The main body accesses the CSIC 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.
C. Combination of alternative (used) imaging unit
• The main body allows an alternative (used) imaging unit to be used among main body
variations of the same model in consideration of a case in which a new imaging unit is
not ready when the imaging unit near-life or life message appears.
Note, however, that, even if the in-box imaging unit is remounted after the replacement
imaging unit has once been mounted, a message appears telling that the imaging unit is
yet to be mounted and the in-box imaging unit is not usable.
When the alternative imaging unit is mounted, the consumption rate display succeeds
the information of the alternative imaging unit.
10.2.2

Imaging unit consumption rate detection

• The consumption rate is calculated based on the period of time through which the main
motor and the color PC drum motor are energized and displayed on the statistics page
and PSWC.
10.2.3

Imaging unit life detection

• The life of the imaging unit is determined based on the main motor drive time, color PC
drum motor drive time, and the number of printed pages produced.
• When any one of the main motor drive time, color PC drum motor drive time, and the
number of printed pages produced reaches a life value, the near-life and life message is
displayed on the control panel.
• When the life value (empty) is reached, the main body is brought to a stop and a mes-
sage prompting replacement is displayed on the control panel.
10. IMAGING UNIT SECTION (overall composition)
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