Read Sharp MX-LC16 Service Manual online
MX-LC16 OPERATIONAL DESCRIPTIONS 4 – 3
C. Lowering operation by paper supply
If the tray is pulled out when it is at the paper supply position the
tray lock solenoid keeps the lock open. when the tray is pulled out
the tray LED turns OFF. when the paper upper surface sensor
(LPUD) is turned ON for 2sec while the tray is pulled out the lift
motor is turned ON to lower the tray.
tray lock solenoid keeps the lock open. when the tray is pulled out
the tray LED turns OFF. when the paper upper surface sensor
(LPUD) is turned ON for 2sec while the tray is pulled out the lift
motor is turned ON to lower the tray.
When the paper upper surface sensor (LPUD) is turned OFF while
the tray is lowered the lift motor is turned OFF to stop the tray.
when the lower limit detector (LDD) is turned ON while the tray is
lower the lift motor is turned OFF to stop the tray regardless of the
state of the paper upper surface sensor (LPUD)
the tray is lowered the lift motor is turned OFF to stop the tray.
when the lower limit detector (LDD) is turned ON while the tray is
lower the lift motor is turned OFF to stop the tray regardless of the
state of the paper upper surface sensor (LPUD)
Lowering operation (when paper is supplied or when the paper
front surface sensor is turned ON)
front surface sensor is turned ON)
Lowering operation (when paper is supplied or when the lower
limit sensor is turned ON)
limit sensor is turned ON)
3. Paper Feed Operation
When the tray is stationary at the paper feed position (upper limit
sensor (LUD) on position and there is paper on the tray paper feed
operation can be performed. paper feed operation is performed by
the paper feed motor (LPFM) the transport clutch (LTRC) the paper
feed clutch (LPFC) and the paper feed solenoid (LPFS) at the fol-
lowing timing.
sensor (LUD) on position and there is paper on the tray paper feed
operation can be performed. paper feed operation is performed by
the paper feed motor (LPFM) the transport clutch (LTRC) the paper
feed clutch (LPFC) and the paper feed solenoid (LPFS) at the fol-
lowing timing.
When the transport clutch (LTRC) is turned ON with the paper feed
motor (LPFM) ON rotating the transport roller rotates when the
paper feed clutch (LPFC) is turned on under this state the paper
feed roller and the take-up roller rotate when the paper feed sole-
noid (LPFS) is turned ON the take-up roller is pushed down to
press paper.
motor (LPFM) ON rotating the transport roller rotates when the
paper feed clutch (LPFC) is turned on under this state the paper
feed roller and the take-up roller rotate when the paper feed sole-
noid (LPFS) is turned ON the take-up roller is pushed down to
press paper.
Paper feed time chart
4. Paper empty detection
When the tray lifts and stops at the paper feed position and during
paper feed operation, paper presence/empty is detected by the
paper presence/empty sensor (LPED). when paper empty is
detected in the tray during paper feeding, paper feeding is stopped.
paper feed operation, paper presence/empty is detected by the
paper presence/empty sensor (LPED). when paper empty is
detected in the tray during paper feeding, paper feeding is stopped.
LLM
(Lift motor output)
LDD
(Lower limit detector)
LPUD
(Paper upper surface
sensor)
LRE
(Encoder signal)
2 [sec]
LLM
(Lift motor output)
LDD
(Lower limit detector)
LPUD
(Paper upper surface
sensor)
LRE
(Encoder signal)
2 [sec]
1
Paper feed roller clutch
2
Take-up roller
3
Paper feed roller
4
Paper feed solenoid
5
Transport clutch
6
Transport motor
7
Lift-up motor
Resist stop
LPFM
(Paper feed motor)
LPFD
(Paper pass detector)
TRC-LCC
(Main unit
synchronous signal)
LTRC
(Transport clutch)
LPFC
(Paper feed clutch)
LPFS
(Paper feed solenoid)
Paper feed start
Clearance-between-
papers control timer
Clearance-between-
papers control timer
PIC drop timer
PIC drop timer
p
o
ts
ts
is
e
R
Paper feed clutch
OFF timer
Paper feed clutch
OFF timer
Preliminary
paper feed start
First sheet
Preliminary paper
feed complete
Paper feed start
Preliminary
paper feed start
Second sheet
Preliminary paper
feed complete
Paper feed start
Clearance-between-
papers control timer
PIC drop timer
Paper feed clutch
OFF timer
Preliminary
paper feed start
Third sheet
Preliminary paper
feed complete
Paper feed start
1
2
3
4
5
6
7
Click on the first or last page to see other MX-LC16 service manuals if exist.