Ricoh LDD280 - Page 248

ELECTRICAL COMPONENT DEFECTS
C262/C265 4-14 SM
Name State Symptoms
Does not detect a master,
but there is a master at
the sensor
The machine displays “no master” after
the main switch is turned on.
After the Start button is pushed:
• When a master is on the drum,
another master will be wrapped
around the drum. This means that
two layers of master will be on the
drum.
• When there is no master on the
drum, printing cannot be done.
Detects a master, but
there is no master at the
sensor
The trial print will cause an upper
wrapping jam.
2
nd
drum master
sensor
Does not detect a master,
but there is a master at
the sensor
A master clamp error occurs.
The sensor detects the
drum is not at the 1
st
position, but it is
If the sensor does not turn off more than
3.74 seconds after the main switch is
turned on, SC300 occurs (main motor
lock)
1
st
drum position
sensor (symptom after
the main switch is
turned on)
The sensor detects the
drum is at the 1
st
position,
but it is not
If the sensor does not turn on more than
3.74 seconds after the main switch is
turned on, SC300 occurs (main motor
lock)
The sensor detects the
drum is not at the 1
st
position, but it is
Drum rotation (low speed) will not stop
when the Start button is pushed.
1
st
drum position
sensor (symptom
during master making)
The sensor detects the
drum is at the 1
st
position,
but it is not
SC313 (clamper lock) when the Start
button is pushed
The sensor detects the
drum is not at the 1
st
position, but it is
Drum rotation will not stop when the Start
button is pushed.
1
st
drum position
sensor (symptom
during printing)
The sensor detects the
drum is at the 1
st
position,
but it is not
Drum rotation will not stop when the Start
button is pushed.
The sensor detects the
drum is not at the 2
nd
position, but it is
Nothing happens after the main switch is
turned on.
2
nd
drum position
sensor (symptom after
the main switch is
turned on)
The sensor detects the
drum is at the 2
nd
position, but it is not
Nothing happens after the main switch is
turned on.
The sensor detects the
drum is not at the 2
nd
position, but it is
SC313 (clamper lock) when the Start
button is pushed
2
nd
drum position
sensor (symptom
during master making)
The sensor detects the
drum is at the 2
nd
position, but it is not
The master eject mechanism will not stop
when the Start button is pushed.
2
nd
drum position
sensor (symptom
during printing)
The sensor detects the
drum is not at the 2
nd
position, but it is
An upper wrapping jam occurs when the
Start button is pushed.