Sharp MX-M550U Service Manual page 286

Signal
Code
name
MPED MPED Manual feed paper empty
detector
MPFD1 MPFD1 Manual feed paper pass
detector 1
MPFPWS MPFPWS Manual feed paper width
detector
MPLD1 MPLD1 Manual feed paper length
detector 1
MPLD2 MPLD2 Manual feed paper length
detector 2
MTOP1 MTOP1 Manual tray pull-out position
detector 1
MTOP2 MTOP2 Manual tray pull-out position
detector 2
DSW-R DSW-R Manual feed unit open/close
Switch
MPFC MPFC Paper feed clutch
(Manual paper feed)
MFPUS MFPUS Paper pickup solenoid
(Manual paper feed)
MPFGS MPFGS Manual paper feed gate
solenoid
No. Name
1 Separation roller (Manual paper feed tray)
2 Paper feed roller (Manual paper feed tray)
3 Paper pickup roller (Manual paper feed tray)
4 Torque limiter
2. Operational descriptions
A. Outline
The paper feed tray 1 holds 900 sheets, the paper feed tray 2 holds 1,300 sheets, the multi-purpose paper feed tray 3 holds 500 sheets, the
paper feed tray 4 holds 500 sheets, and the manual paper feed tray holds 100 sheets. Those paper feed units are standard provisions.
3. Disassembly and assembly
No. Unit No.
A Multi manual a
paper feed tray
unit
b
c
d
e
f
g
h
i
j
k
l
m
n
o
Name
Manual paper feed tray paper empty detection
Manual tray paper pass detection
Manual feed paper width detection
Manual paper feed tray paper length detection
(Paper feed side)
Manual paper feed tray paper length detection (Outside)
Manual paper feed tray pull-out position detection
(Storing position)
Manual paper feed tray pull-out position detection
(Pull-out position)
Manual paper feed unit open/close detection, Main charger
power source, Developing bias power line open/close.
Controls the manual paper feed section paper feed roller ON/
OFF.
Presses the paper pickup roller onto paper.
Manual feed gate solenoid open/close control.
Separates paper to prevent against double feed.
Feeds paper to the paper transport section.
Sends paper to the paper feed roller.
A fixed level of resistance is applied to the paper separation roller to prevent against double feed.
Mainte
Parts
nance
Manual paper feed unit open/
close switch
Manual feed empty detector
Pickup roller
Paper feed roller
Separation roller
Torque limiter
Manual feed gate solenoid
Manual feed paper pass
detector 1
Paper feed clutch
Paper pickup solenoid
Manual paper width size
detection PWB
Manual feed paper length
detector 1
Manual feed paper length
detector 2
Manual tray pull-out position
detector 1
Manual tray pull-out position
detector 2
MX-M700N MANUAL PAPER FEED SECTION E – 2
Function/Operation
✕
✕
✕
✕
(1)-a
Type
Transmission
type
Transmission
type
Volume resistor
Transmission
type
Transmission
type
Contact type
Contact type
Micro switch
Electromagnetic
clutch
Electromagnetic
solenoid
Electromagnetic
solenoid
Function/Operation
(1) (1)-f (1)-j (1)-i
(1)-h (1)-b
(1)-g (1)-d (1)-k
(1)-e (1)-c
NOTE
Manual paper
feed unit
Paper transport
system sensor
Analog detector
Manual paper
feed unit
Manual paper
feed unit
Manual paper
feed unit
Manual paper
feed unit
(1)-n (1)-o
(1)- l (1)- m