Misfeed At Tray 2 Vertical Transport Section - Konica Minolta bizhub C353 Service Manual

15. Jam display
15.3.7

Misfeed at tray 2 vertical transport section

A. Detection timing
Type
Detection of
misfeed at vertical
transport section
Vertical transport
section loop
registration
reversing jam
B. Action
Transport motor (M1)
Paper feed tray 2 vertical transport clutch (CL3)
Paper feed tray 2 vertical transport sensor (PS16)
Sensor in front of tim. roller (PS23)
Step
2
1 Initial check items
2 PS16 I/O check, sensor check
3 PS23 I/O check, sensor check
4 CL3 operation check
5 M1 operation check
6 Change PRCB
474
2
• The leading edge of the paper does not turn ON the sensor in front of tim. roller
(PS23) even after the lapse of a given period of time after the paper has
blocked the paper feed tray 2 vertical transport sensor (PS16).
• The paper feed tray 2 vertical transport sensor (PS16) is not unblocked even
after the lapse of a given period of time after the paper has blocked the PS16.
• For paper fed from the tray 2, loop forming has not been complete before a
sheet enters the timing roller because the rise timing of load to perform registra-
tion is earlier than the rise timing of load to form a loop.
Relevant parts
Action
Field Service Ver. 3.0 Jan. 2008
Description
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
—
PRCB CN9-11 (ON)
PRCB CN1-3 (ON)
PRCB CN9-17 (ON)
PRCB CN34-10 (REM)
PRCB CN34-13 (LOCK)
—
Location (Electri-
cal component)
—
D-10
D-18
D-11
D-23
—