Electrical Component Defects; Sensors - Ricoh D129 Service Manual

6.2 ELECTRICAL COMPONENT DEFECTS

6.2.1 SENSORS

Component
(Symbol)
By-pass Paper 236-2
Length Sensor (IOB)
Duplex Entrance 217-A8 (IOB)
217-A11
Duplex Cover
(IOB)
217-A14
Duplex Exit
(IOB)
By-pass Paper End 217-B3 (IOB)
217-B9,
By-pass Paper Size B10,B12,B13
(IOB)
217-B15
Toner Overflow
(IOB)
SM
CN Condition
Open
Shorted
Open
Shorted
Open
Shorted
Open
Shorted
Open
Shorted
Open
Shorted
Open
Shorted
6-71
Electrical Component Defects
Symptom
Paper size error
Jam Z
Jam Z
"Open Cover" is displayed.
"Open cover" cannot be detected.
Jam Z
am Z (Jam 1)
The Paper End indicator lights
even if paper is placed on the
by-pass tray.
The Paper End indicator does not
light even if there is no paper on
the by-pass tray.
Paper size error
CPU cannot detect the toner
overflow even the waste toner in
the transfer belt unit is full.
CPU detects the toner overflow
even the waste toner in the
transfer belt unit is not full.
D129/D130