Ricoh LDD280 - Master Making Unit; Drum

ELECTRICAL COMPONENT DEFECTS
SM 4-13 C262/C265
Trouble-
shooting
4.4.3 MASTER MAKING UNIT
Name State Symptoms
Detects a master on the
roll, but no master is
present
The machine will display ‘master end’ after
master making. (In normal operation,
‘master end’ will be shown before master
making.)
Master end sensor
Detects no master on the
roll, but a master is
present
The machine detects the end of the
master roll and will not start to make a
master
Detect a master, but no
master is present
If there is no master at the master set
roller, the machine will show a D jam.
Master set sensor
Detects no master, but a
master is present
The machine displays “set the master”,
but the master is set correctly.
Detect a master, but no
master is present
A D jam will be displayed when the Start
button is pushed (master clamp error)
Master edge sensor
Detects no master, but a
master is present
A D jam occurs because the machine tries
to feed the master to the standby position;
but a master is already there (master set
error).
Stays on (detects that
platen pressure is
applied, but it is not)
If the sensor does not turn off 5 seconds
after the start button is pushed, SC211
occurs (platen release motor lock).
Platen release sensor
Stays off (detects that
platen pressure is
released, but it is applied)
If the sensor does not turn on 5 seconds
after the start button is pushed or the
platen release motor starts, SC211 occurs
(platen release motor lock).
Stays on (detects that the
cutter is not at home
position, but it is)
If the cutter HP switch does not turn off 3
seconds after the start button is pushed
and the cutter motor starts, SC210 occurs
(cutter unit error).
Cutter HP switch
Stays off (detects that the
cutter is at home position,
but it is not)
If the cutter HP switch does not turn off 3
seconds after the start button is pushed
and the cutter motor starts, SC210 occurs
(cutter unit error).
Detects ‘locked’, but the
unit is not locked
If the sensor does not turn off when the
machine tries to release the lock, SC213
occurs.
Master making unit
lock sensor
Detects ‘unlocked’, but
the unit is locked
If the sensor does not turn on after the
start button is pushed to try to lock the
master making unit, the machine displays
“master making unit is not set”.
4.4.4 DRUM
Name State Symptoms
1
st
drum master
sensor
Detects a master, but
there is no master at the
sensor
The machine displays “E jam” when
master making is started.
A paper upper wrapping jam occurs when
printing is started.