Read Sharp MX-LC12 (serv.man10) Service Manual online
MX-LC12 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 – 2
2. PWB, sensor, switch, heater
*Option
No.
Parts
Code
Signal name
Name
Type
Function/Operation
Active condition
7
MAIN PWB
-
LCC main
PWB
PWB
Controls and drives the LCC.
8
LDD
LDD
Lower limit
sensor
sensor
The lower limit of the tray is detected.
When the tray is at the lower limit, "H"
level.
level.
9
LRE
LRE
Lift motor
encoder
encoder
The lift motor rotation is detected.
Pulse signal
10
LCSW
LCSW
Cassette
detection
detection
The tray insertion is detected.
When inserted, "H" level.
11
LTOD
LTOD
The main unit
connection
sensor
connection
sensor
Detects connection to the main unit.
When connected, "L" level.
12
LPFD
LPFD
Transport
sensor
sensor
Detects paper transport.
L level at paper remaining detection.
13
LUD
LUD
Upper limit
sensor
sensor
Detects the paper upper limit position.
When "H" level (ON), the lift-up motor
stops.
stops.
14
LPED
LPED
Paper
presence/
empty sensor
presence/
empty sensor
Detects paper presence/empty on the
paper tray.
paper tray.
When paper is detected, "L".
* When lifting up, if "L" with LRE 800
* When lifting up, if "L" with LRE 800
pulse, the paper feed solenoid is ON.
15
LLSW
LLSW
Upper limit
switch
switch
Protects the paper feed unit from breakage
due to lifting the tray too high.
due to lifting the tray too high.
16
LDSW
LDSW
Upper open/
close switch
close switch
Detects open/close of the upper door.
17*
DH
DH
Thermal
heater
heater
Keeps temperature in the LCC tray.
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