Electrical Component Defects; Sensors - Ricoh G104 Service Manual

4.4 ELECTRICAL COMPONENT DEFECTS

4.4.1 SENSORS

Sensor Name/
No.
Sensor Board Name
Color Drum Gear
1
Position Sensor
Black Drum Gear
2
Position Sensor
Toner End Sensor (K)
Toner End Sensor (M)
3
Toner End Sensor (C)
Toner End Sensor (Y)
Transfer Belt Contact
4
Sensor
Transfer Roller
5
Contact Sensor
TD Sensor (K)
TD Sensor (M)
6
TD Sensor (C)
TD Sensor (Y)
8 Transfer Belt Rotation
10 Front Door Sensor
Waste Toner Overflow
11
Sensor
12 Left Cover Sensor
Temperature/Humidity
13
Sensor
14 Paper Size Sensor
Fusing Entrance
15
Sensor
16 Duplex Jam Sensor 1
SM
CÓPIA NÃO CONTROLADA
ELECTRICAL COMPONENT DEFECTS
CN No./
Active Condition
Pin No.
Open
H CN222/2
Shorted
Open
H CN222/5
Shorted
Open
CN222/8
CN230/13
L
CN230/26
Shorted
CN230/29
Open
H CN222/11
Shorted
Open
L CN222/14
Shorted
Open
CN222/20
CN225/4
A
CN230/4
Shorted
CN230/20
Open
Shorted
L CN222/27
Open
H CN206/1
Shorted
Open
H CN230/10
Shorted
Open
H C230/15
Shorted
Open
A CN231/1
Shorted
A CN231/3
CN214/17 Open
CN214/15
L
CN214/14
Shorted
CN214/13
Open
L CN213/6
Shorted
Open
L CN213/1
Shorted
4-27
CÓPIA NÃO CONTROLADA
Symptom
SC380
SC380
Toner end cannot be detected.
Toner end is detected even if
the there is enough toner.
SC442
SC452
SC368 (K)
SC369 (M)
SC370 (C)
SC371 (Y)
Automatic line position
adjustment error: Transfer belt
unit speed cannot be detected,
causing the image skew.
"Close Front/Left Cover" is
displayed.
The front cover open cannot
be detected.
Waste Toner near full is
indicated.
Waste toner full cannot be
detected even if the waste
toner bottle is full.
"Close Front/Left Cover" is
displayed.
The left cover open cannot be
detected.
Printed image is wrong such
as rough image, dirty
background or weak image.
Paper size error
Paper jam is not detected even
if there is a paper
Paper jam is detected even if
the there is no paper.
Paper jam is not detected even
if there is a paper
Paper jam is detected even if
the there is no paper.
G104