Konica Minolta bizhub C203 Service Manual

7. Jam display Field Service Ver. 1.0 Jul. 2007
26
PC-104/204
Troubleshooting
7.3.2 Tray3 feed section/vertical transport section misfeed (PC-104/204)
A. Detection timing
B. Action
Type Description
Tray3 feed section/
vertical transport
section misfeed
detection
The leading edge of the paper does not block the tray3 vertical transport sensor
(PS117) even after the set period of time has elapsed after the tray3 paper feed
motor (M122) is energized.
The paper feed tray 2 vertical transport sensor (PS16) is not blocked even after
the lapse of a given period of time after the tray3 vertical transport sensor (PS117)
has been blocked by a paper.
Tray 3 vertical
transport section
loop registration
reversing jam
Rise timing of load for registration is earlier than the one for making the loop at
front of the registration roller at tray 3 paper feed.
Tray3 detection of
paper remaining
The tray3 vertical transport sensor (PS117) is blocked when the main power
switch is set to ON, a door or cover is opened and closed, or a misfeed or mal-
function is reset.
The tray3 paper feed sensor (PS116) is blocked when the main power switch is
set to ON, a door or cover is opened and closed, or a misfeed or malfunction is
reset.
Misfeed detected
as a result of
delayed deactiva-
tion of sensor
The tray3 vertical transport sensor (PS117) is not unblocked even after the lapse
of a given period of time after PS117 has been blocked by a paper.
Relevant electrical parts
Tray3 paper feed sensor (PS116)
Tray3 vertical transport sensor (PS117)
Paper feed tray 2 vertical transport sensor (PS16)
Tray3 paper feed motor (M122)
Sensor in front of tim. roller (PS23)
PC control board (PCCB)
Step Action
WIRING DIAGRAM
Control signal
Location
(Electrical
components)
1 Initial check items — —
2 PS23 I/O check, sensor check PRCB CN1PRCB-3 (ON)
bizhub C353/
C253/C203
D-18
3 PS116 I/O check, sensor check PCCB PJ6PCCB-8 (ON)
PC-104, PC-204
B-2
4 PS117 I/O check, sensor check PCCB PJ6PCCB-11 (ON)
PC-104, PC-204
B-2
5 PS16 I/O check, sensor check PCCB CN9PRCB-11 (ON)
bizhub C353/
C253/C203
D-11
6 M122 operation check PCCB PJ5PCCB-1 to 4
PC-104, PC-204
B-3
7 PCCB replacement — —

Konica Minolta bizhub C203 Specifications

General

Print Resolution	600 x 600 dpi
Print Technology	Laser
Memory (Standard)	1 GB
Paper Output	250 sheets
Scan Resolution	600 x 600 dpi
Print Speed	20 ppm (black/color)
Copy Speed	20 cpm (black/color)
Standard Paper Size	A4, A5, B5
Connectivity	Ethernet (10/100Base-TX), USB 2.0
Weight	85 kg
Functions	Print, Copy, Scan
First Print Time (Color)	15 seconds
Duplex Printing	Yes
Scan to	Email, FTP, USB
Paper Capacity	Standard: 1, 150 sheets
Type	Color Multifunction Printer