Sharp AR-C330 (serv.man5) Service Manual ▷ View online
AR-C330 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 6
(2) Operation section
(3) Paper feed, transport section
a. Paper tray
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active
condition
1
Operation UN
Displays various information and makes setups.
2
MAIN SW
Main switch
Rocker switch
Turns on/off the main power.
3
Operation PWB L
Outputs key operation signals.
4
OP control PWB
Controls the whole operation unit. (Displays
information from PCU PWB and sends operational
information to PCU PWB.)
information from PCU PWB and sends operational
information to PCU PWB.)
5
Operation PWB R
Outputs key operation signals.
6
LCD back light
inverter PWB
inverter PWB
Drives the LCD back light.
7
LCD
LCD
Displays various information. Functions as a key.
2
1
3
4
4
5
6
7
Right door lower
Vertical paper
transport lower
transport lower
Right door
Vertical paper
transport upper
transport upper
Paper tray
Paper feed unit
Lift-up unit
2
3
4
5
7
6
8
9
1
AR-C330 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 7
b. Paper tray lift unit
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active
condition
1
Paper trays
Stores print paper.
2
Paper position (longitudinal direction)
adjustment plate lock lever
adjustment plate lock lever
Locks or releases the paper position (longitudinal
direction) adjustment plate.
direction) adjustment plate.
3
Paper position (longitudinal direction)
adjustment plate
adjustment plate
Positions paper (longitudinal direction).
4
Lift plate
Lifts up paper to press it onto the pickup roller.
5
Paper position (traverse direction)
adjustment plate
adjustment plate
Positions paper (traverse direction).
6
Paper size set block
Makes the paper size detector detect the paper
size.
size.
7
Lift gear
Transmits the lift motor power to the lift plate.
8
Paper size display plate
Displays the paper size.
9
Paper position (traverse direction)
adjustment plate lock lever
adjustment plate lock lever
Locks or releases the paper position (traverse
direction) adjustment plate.
direction) adjustment plate.
No.
Parts
Note
Code
Signal
name
Name
Type
Function/Operation
Active
condition
1
Paper tray lift unit
Drives the paper tray lift
plate.
plate.
2
Paper size detection
actuator
actuator
Transmits protrusion
pattern of the paper size set
block to the paper size
detector.
pattern of the paper size set
block to the paper size
detector.
3
Paper tray lift unit control
PWB
PWB
Controls the paper tray lift
unit.
unit.
4
LUMx
LUMx
Lift motor
Synchronous motor
Drives the lift plate.
The numbering is
made in the
sequence of 1 - 4
from the top to the
bottom.
made in the
sequence of 1 - 4
from the top to the
bottom.
5
CxSSx
CxSSx
Paper size detector (SW)
Tact switch
Detects the paper size set
by the paper size set block.
by the paper size set block.
The numbering is
made in the
sequence of 1 - 4
from the top to the
bottom.
made in the
sequence of 1 - 4
from the top to the
bottom.
6
CxPDx
CxPDx
Lift position sensor
Photo sensor (Photo
transmission)
transmission)
Detects the lift plate
position. (Detects paper
quantity.)
position. (Detects paper
quantity.)
H when
detecting
detecting
The numbering is
made in the
sequence of 1 - 4
from the top to the
bottom.
made in the
sequence of 1 - 4
from the top to the
bottom.
2
3
4
5
6
1
AR-C330 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 8
c. Paper tray paper feed unit
d. Paper transport unit (upper)
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active condition
1
Paper tray paper
feed unit
feed unit
Feeds paper in the paper tray to the paper
transport section.
transport section.
2A
PEDx
PEDx
Paper empty
detector
detector
Photo sensor (Photo
transmission)
transmission)
Detects paper empty in the paper tray.
L(0V) when paper
is detected.
is detected.
2B
LUDx
LUDx
Paper upper limit
detector
detector
Photo sensor (Photo
transmission)
transmission)
Detects the paper upper limit (Keeps friction
between the paper pickup roller and paper
constant).
between the paper pickup roller and paper
constant).
L when the paper
upper limit is
detected
upper limit is
detected
3
Paper pickup roller
Feeds paper to the paper feed roller.
4
CPFSx
CPFSx
Pickup solenoid
Presses paper onto the paper pickup roller.
5
CPFCx
CPFCx
Paper feed clutch
Electromagnetic
clutch
clutch
Controls ON/OFF of the paper feed roller.
6
Separation roller
Separates paper and prevents against double feed.
7
Paper feed roller
Feed paper to the paper transport section.
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active
condition
1
Paper transport unit (Upper)
Transports paper to the transfer section.
2
Paper transport roller 1
Transports paper to the transfer resist
roller.
roller.
3
Idle roller
Reduces the load of paper transport
power.
power.
4
PFD1
PFD1
Paper detector (Actuator) 1
Photo sensor (Photo
transmission)
transmission)
No. 1 paper tray (Duplex) paper exit
detection
detection
L with paper
presence
presence
5
RDSW-U
RDSW-U
Right upper door open/close
detector (Actuator)
detector (Actuator)
Photo sensor (Photo
transmission)
transmission)
Right upper door open/close detection
H when the
door is open
door is open
6
PFD2
PFD2
Paper detector (Actuator) 2
Photo sensor (Photo
transmission)
transmission)
No. 2 paper tray paper exit detection
L with paper
presence
presence
2B
3
4
5
6
7
2A
1
2
3
4
5
6
7
8
10
9
1
AR-C330 EXTERNAL VIEW AND INTERNAL STRUCTURE 5 - 9
e. Paper transport unit (lower)
f. Right door upper unit
7
IFD PWB
Photo sensor (Photo
transmission)
transmission)
Provided with No. 1/2 paper tray paper
exit detector and the right upper door
open/close detector.
exit detector and the right upper door
open/close detector.
8
Idle roller
Reduces the load of paper transport
power.
power.
9
Idle roller
Applies a pressure to paper and the
transport roller to give the transport roller
power to the paper.
transport roller to give the transport roller
power to the paper.
10
Paper transport roller 2
Transports paper to the transport roller 1.
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active condition
1
Paper transport unit
(lower)
(lower)
Transports paper to the transfer
section.
section.
2
PFD PWB
Photo sensor (Photo
transmission)
transmission)
Provided with No. 3/4 paper tray
paper exit detector and the right lower
door open/close detector.
paper exit detector and the right lower
door open/close detector.
3
RDSW-L
RDSW-L
Right lower door open/
close detector (actuator)
close detector (actuator)
Photo sensor (Photo
transmission)
transmission)
Right lower door open/close detection
H when the door
is open
is open
4
PFD3
PFD3
Paper detector
(actuator) 3
(actuator) 3
Photo sensor (Photo
transmission)
transmission)
No. 3 paper tray paper exit detection
L when the upper
limit is detected
limit is detected
5
PFD4
PFD4
Paper detector
(actuator) 4
(actuator) 4
Photo sensor (Photo
transmission)
transmission)
No. 4 paper tray paper exit detection
L with paper
presence
presence
6
Idle roller
Reduces the load of paper transport
power.
power.
7
Paper transport roller 3
Transports paper to the transport
roller 2.
roller 2.
8
Paper transport roller 4
Transports paper to the transport
roller 3.
roller 3.
No.
Parts
Code
Signal
name
Name
Type
Function/Operation
Active
condition
2
3
4
5
7
6
8
1
2
3
4
1
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