Ricoh LDD280 - Paper Eject

ELECTRICAL COMPONENT DEFECTS
SM 4-19 C262/C265
Trouble-
shooting
Name State Symptoms
Stays on (detects that
clamper is closed, but it is
not)
If the sensor does not turn off when the
clamper motor is opening and closing the
clamper, SC313 (clamper motor lock)
occurs.
Clamper close
position sensor
Stays off (detects that
clamper is not closed, but
it is)
If the sensor does not turn on when the
clamper motor is opening and closing the
clamper, SC313 (clamper motor lock)
occurs.
Detects that the image
shift mechanism is not at
HP, but it is at HP.
If the sensor does not turn on for 12
seconds after the main switch is turned
on, SC303 occurs.
Image shift HP sensor
Detects that the image
shift mechanism is at HP,
but it is not.
If the sensor does not turn off for 12
seconds after the main switch is turned
on, SC303 occurs.
Feed encoder Does not detect the signal SC502
4.4.8 PAPER EJECT
Name State Symptoms
Stays on (detects that the
wing is at the upper
position, but it is not)
If the sensor does not turn off when the
wing guide motor moves down, SC507
(wing guide motor lock) occurs.
Wing upper position
sensor
Stays off (detects that the
wing is not at the upper
position, but it is)
If the sensor does not turn on when the
wing guide motor moves up, SC507 (wing
guide motor lock) occurs.
Stays on (detects that the
wing is at the lower
position, but it is not)
If the sensor does not turn off when the
wing guide motor moves up, SC506 (wing
guide motor lock) occurs.
Wing lower position
sensor
Stays off (detects that the
wing is not at the lower
position, but it is)
If the sensor does not turn on when the
wing guide motor moves down, SC506
(wing guide motor lock) occurs.
Detects paper, but there
is no paper
A C jam occurs after the main switch is
turned on.
Paper exit sensor
Does not detect paper,
but there is paper
A paper upper wrapping jam occurs when
the Print button is pushed.
Stays on (detects the
cam, but it is not at the A4
position)
If the cam does not move for 5 seconds
when the Start button is pushed, SC309
(pressure cam shift motor) occurs.
A4 cam sensor
Stays off (does not detect
the cam, but it is at the A4
cam position.
If the cam does not move for 5 seconds
when the Start button is pushed, SC309
(pressure cam shift motor) occurs.
Stays on (detects the A3
cam, but it is not at the A3
position)
If the cam does not move for 5 seconds
when the Start button is pushed, SC310
(pressure cam shift motor) occurs.
A3 cam sensor
Stays off (does not detect
the cam, but it is at the A3
cam position.
If the cam does not move for 5 seconds
when the Start button is pushed, SC310
(pressure cam shift motor) occurs.
Lower wrapping jam
sensor
Detect paper, but there is
no paper.
The machine displays “lower wrapping
jam” after the main switch is turned on.