Read Sharp MX-LC16 Service Manual online
MX-LC16 OPERATIONAL DESCRIPTIONS 4 – 2
2. Lift Operation
A. Lifting by insertion of the tray
When insertion of the tray is detected. the tray is locked by the tray
lock solenoid so that the tray cannot be pulled out. when tray lock is
set by turning ON the tray lock sensor (LTLD). the lift motor is
turned ON to lift the tray. when the tray is lifted the tray LED blinks
and stops at the paper feed position (upper limit) by turned ON the
upper limit sensor (LUD). when the tray stops at the paper feed
position (upper limit) the tray LED turns on.
lock solenoid so that the tray cannot be pulled out. when tray lock is
set by turning ON the tray lock sensor (LTLD). the lift motor is
turned ON to lift the tray. when the tray is lifted the tray LED blinks
and stops at the paper feed position (upper limit) by turned ON the
upper limit sensor (LUD). when the tray stops at the paper feed
position (upper limit) the tray LED turns on.
When the paper empty detector (LPED) turns ON within 1097
pulses of the encoder signal from start of the tray lifting, the lift
motor is turned OFF to stop the tray.and the paper feed solenoid
(LPFS) is turned ON to lower the pick roller. after that the lift motor
is turned ON again to lift the tray and stop it at the upper limit sen-
sor (LUD) ON position.
pulses of the encoder signal from start of the tray lifting, the lift
motor is turned OFF to stop the tray.and the paper feed solenoid
(LPFS) is turned ON to lower the pick roller. after that the lift motor
is turned ON again to lift the tray and stop it at the upper limit sen-
sor (LUD) ON position.
When the paper empty detector (LPED) does not turn ON within
1097 pulses the paper feed solenoid (LPFS) is turned ON with the
lift motor ON to lower the pick roller. the lift motor is stopped at the
upper limit sensor (LUD) ON position and the paper feed solenoid
is turned OFF
1097 pulses the paper feed solenoid (LPFS) is turned ON with the
lift motor ON to lower the pick roller. the lift motor is stopped at the
upper limit sensor (LUD) ON position and the paper feed solenoid
is turned OFF
Lift operation is not performed if the power to the main unit is turned
ON with the tray at a position where it can feed paper.
ON with the tray at a position where it can feed paper.
Lifting (when LPED turns ON within 1097 pulses during lifting)
Lifting (When LPED does not turn ON within 1097 pulses
during lifting)
during lifting)
B. Lowering operation by paper empty detection
or pressing the tray SW
When the paper empty detector (LPED) turns OFF with the tray at
the paper feed position (upper limit) or when the tray SW (LTLS) is
pressed the tray is lowered by 542 pulses of the encoder signal and
stopped at the paper supply position. when the lower limit detector
(LDD) turns ON before lowering the tray by 542 pulses of the
encoder signal the lift motor is turned OFF to stop the tray.
the paper feed position (upper limit) or when the tray SW (LTLS) is
pressed the tray is lowered by 542 pulses of the encoder signal and
stopped at the paper supply position. when the lower limit detector
(LDD) turns ON before lowering the tray by 542 pulses of the
encoder signal the lift motor is turned OFF to stop the tray.
When the tray is moving down the tray LED blinks. when the tray is
stopped at the paper supply position the tray LED turns OFF.when
the tray is stopped at the paper supply position the tray lock sole-
noid release the lock so that the tray can be pulled out. when the
tray is lowered with the paper empty detector (LPED) OFF the tray
remains at the paper supply position and the tray lock is released.
stopped at the paper supply position the tray LED turns OFF.when
the tray is stopped at the paper supply position the tray lock sole-
noid release the lock so that the tray can be pulled out. when the
tray is lowered with the paper empty detector (LPED) OFF the tray
remains at the paper supply position and the tray lock is released.
When the tray is lowered by pressing the tray SW (LTLS) if the tray
is not pulled out from the paper supply position for 90sec the tray
lock solenoid locks the tray when the tray is locked securely the lift
motor is turns ON to lift the tray. when the tray is lifting the tray LED
blinks when the upper limit sensor (LUD) is turned ON the tray
stops at the paper feed position (upper limit). when the tray stops at
the paper feed position (upper limit) the tray LED turns ON.
is not pulled out from the paper supply position for 90sec the tray
lock solenoid locks the tray when the tray is locked securely the lift
motor is turns ON to lift the tray. when the tray is lifting the tray LED
blinks when the upper limit sensor (LUD) is turned ON the tray
stops at the paper feed position (upper limit). when the tray stops at
the paper feed position (upper limit) the tray LED turns ON.
Lowering operation (when paper empty is detected)
Lowering operation (when tray SW is pressed)
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detector)
LPFS
(Solenoid)
Within 1097 pulses
LRE
(Encoder signal)
200msec
LLM
(Lift motor output)
LDD
(Lower limit sensor)
LUD
(Upper limit sensor)
LPED
(Paper empty detector)
LPFS
(Solenoid)
LRE
(Encoder signal)
1097
LLM
(Lift motor output)
LDD
(Lower limit detector)
LUD
(Upper limit sensor)
LPED
(Paper empty detector)
LTLS
(Tray SW)
LRE
(Encoder signal)
542
LLM
(Lift motor output)
LDD
(Lower limit detector)
LUD
(Upper limit sensor)
LPED
(Paper empty detector)
LTLS
(Tray SW)
LRE
(Encoder signal)
Less than 542
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