Ricoh G104 Service Manual page 112

ELECTRICAL COMPONENT DEFECTS
Sensor Name/
No.
Sensor Board Name
17 Duplex Jam Sensor 2
By-pass Paper
18
Detection Sensor
By-pass Paper Size
19
Sensor
20 Inverter Sensor
21 Fusing Exit Sensor
Paper Overflow
22
Sensor
23 Paper Exit Sensor
24 ID Sensors
25 Fusing Thermistor
26 Fusing Set Sensor
27 Top Cover Sensor
LDU Shutter Sensor
28
29 Registration Sensor
30 Paper Width Sensor
Paper Height Sensor
31
1/2
32 Paper End Sensor
G104
CÓPIA NÃO CONTROLADA
CN No./
Active
Pin No.
Open
L CN213/3
Short
Open
L CN211/22
Shorted
CN211/17 Open
CN211/16
L
CN211/20
Shorted
CN211/19
Open
L CN211/2
Shorted
Open
L CN210/13
Shorted
Open
L CN210/10
Shorted
Open
L CN210/7
Shorted
Open
A CN209
Shorted
Open
A CN209/1
Shorted
Open
L CN209/3
L CN209/4
Shorted
Open
H CN208/2
Shorted
Open
H CN207/17
Shorted
Open
L CN207/14
Shorted
Open
H CN207/11
Shorted
Open
CN207/5
H
CN207/8
Shorted
Open
H CN2072
Shorted
4-28
CÓPIA NÃO CONTROLADA
Symptom
Condition
Paper jam is not detected even
if there is a paper
Paper jam is detected even if
the there is no paper.
Paper is not detected on the
by-pass tray
Paper is detected even if there
is no paper on the by-pass
tray.
Paper size error
Paper jam Z
Paper Jam A
The paper overflow message
is not displayed even when a
paper overflow condition
exists, causing paper jam.
The paper overflow message
is displayed.
Paper Jam A
SC400/418
SC541
"Reset Fusing Unit correctly" is
displayed.
"Close Top Cover" is
displayed.
The top cover open cannot be
detected.
SC270
Paper Jam A
Always, small paper is detects,
causing printing speed down.
Small paper size does not
detect.
Remaining paper volume is
wrong on Web Image Monitor.
The paper end detects even if
paper is placed in the paper
tray.
The paper end does not detect
even if there is no paper in the
paper tray, causing paper jam.
SM