Operation; Vertical Transport Control; Transport Clutch Control; Operation Timing - Konica Minolta BizHub C360 Service Manual

Theory of Operation Ver. 1.0 Jul. 2009

18.3 Operation

18.3.1

Vertical transport control

• The vertical transport section transports paper fed from tray1, 2, or optional paper feed
unit onto the registration section.
• The paper fed from tray1 is transported onto the registration section by the tray 1 paper
feed roller.
• The paper fed from the manual tray is transported onto the registration section by the
manual tray paper feed roller.
• The paper fed from tray2 is transported onto the registration section by the tray2 vertical
transport roller.
18.3.2

Transport clutch control

A. Tray2 vertical transport clutch
• The paper feed tray 2 vertical transport clutch is connected to the tray 2 vertical transport
roller. When the paper feed tray 2 vertical transport clutch is energized, the driving force
of the transport motor is transmitted, so that the paper feed tray 2 vertical transport roller
is rotated.
18.3.3

Operation timing

A. Tray2 vertical transport roller
• The tray2 vertical transport roller starts rotating after the lapse of a predetermined period
of time after the print start signal.
• The tray2 vertical transport sensor located downstream of the tray2 vertical transport
roller along the paper path detects the paper that has moved past the tray2 vertical trans-
port roller.
• If the paper feed tray 2 vertical transport sensor is unable to detect the leading edge of
the paper even after the lapse of a predetermined period of time after a paper feed
sequence is started, the machine determines that there is a paper misfeed at the paper
feed section.
• If the paper feed tray 2 vertical transport sensor is unable to detect the trailing edge of
the paper even after the lapse of a predetermined period of time after it has detected the
leading edge of the paper, the machine determines that there is a paper misfeed at the
vertical transport section.
• For a print job that uses an optional paper feed unit, if the paper feed tray 2 vertical trans-
port sensor is unable to detect paper even after the lapse of a predetermined period of
time after the tray 3 vertical transport sensor has detected the paper, the machine deter-
mines that there is a paper misfeed at the vertical transport section.
• If the paper feed tray 2 paper feed sensor detects paper earlier than a predetermined
time, the paper feed tray 2 paper feed clutch is temporarily deenergized, so that the tim-
ing at which the paper being controlled is to be transported is retarded. This corrects the
time at which the paper reaches the registration roller (paper transport deceleration con-
trol).
18. VERTICAL TRANSPORT SECTION
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