JS-505
T
roubleshooting
Field Service Ver.
1
.0 J
u
n. 2008
6
.
Jam display
A. Detection timing
Relevant electrical parts
Paper exit sensor (PS2)
Lower tray exit sensor (PS1)
Upper tray exit sensor (PS2)
JS control board (JSCB)
Printer control board (PRCB)
6
.3.
4
Job separator transport section misfeed
B. Action
WIRING DIAGRAM
Control signal
Location (Electrical
components)
1
Initial checks
—
—
2
PS2 (paper exit sensor) I/O check,
sensor check
—
—
3
PS1 I/O check, sensor check
JSCB PJ7-6 (ON)
JS-505 F-4 to 5
4
PS2 (Upper tray exit sensor) I/O check,
sensor check
JSCB PJ7-9 (ON)
JS-505 F-4
5
JSCB replacement
—
—
6
PRCB replacement
—
—
Type
Description
Transport section misfeed
detection
The lower tray exit sensor (PS1) is not turned ON even after the set period
of time has elapsed after the copier’s paper exit sensor (PS2) is turned ON
by the paper.
The upper tray exit sensor (PS2) is not turned ON even after the set period
of time has elapsed after the copier’s paper exit sensor (PS2) is turned ON
by the paper.
The lower tray exit sensor (PS1) is not turned OFF even after the set
period of time has elapsed after the copier’s paper exit sensor (PS2) is
turned OFF by the paper.
The upper tray exit sensor (PS2) is not turned OFF even after the set
period of time has elapsed after the copier’s paper exit sensor (PS2) is
turned OFF by the paper.
The paper exit sensor (PS25) is not turned ON even after the set period of
time has elapsed after the copier’s paper exit sensor (PS2) is turned ON
by the paper.
Detection of paper remain-
ing in the transport section
The lower tray exit sensor (PS1) is turned ON when the power switch is set
to ON, a door or cover is opened and closed, or a misfeed or malfunction
is reset.
The upper tray exit sensor (PS2) is turned ON when the power switch is
set to ON, a door or cover is opened and closed, or a misfeed or malfunc-
tion is reset.
Ste
p
WIRING DIAGRAM
Control signal
Location (Electrical
components)
1
Initial checks
—
—
2
PS25 I/O check, sensor check
—
—
3
PS1 I/O check, sensor check
JSCB PJ7-6 (ON)
JS-505 F-4 to 5
4
PS2 I/O check, sensor check
JSCB PJ7-9 (ON)
JS-505 F-4
5
JSCB replacement
—
—
6
PRCB replacement
—
—
d-Color MF201
d-Color MF201Plus - d-Color MF250 -
Ste
p
Action
Action
d-Color MF305
2
5
Y109081-8 Sevice Manual
