Sensors And Motors; Mechanical Parts - Sony UP-55MD Service Manual

4-1. Sensors and Motors

No. Name
1
Mode sensor
(Two photointerrupter sensors)
2
Ribbon sensor
(Transmission sensor)
3
Paper edge sensor
(Transmission sensor)
4
Paper detection sensor
(Photointerrupter sensor)
5
Eject detection sensor
(Photointerrupter type)
6
Jamming detection sensor
(Transmission sensor)
7
Bottom cover sensor (Switch)
8
Front panel sensor (Switch)
9
Head thermistor
!/
In-unit thermistor
!-
Paper drive motor
(Stepping motor)
!=
Ribbon motor (DC motor)
![
Mode motor (DC motor)
!]
Antenna
!\
Head cooling fan
!;
In-unit cooling fan

4-2. Mechanical Parts

No. Name
!'
Platen
!,
Grip roller
!.
Pinch roller
@/
Thermal head
@-
Separation pad
@=
Press roller
@[
Load roller
4-2
Board Function
SE-746 board Detects the head position.
SE-747 board Detects the cue-up of each ribbon color.
SE-748 board
SE-749 board Detects the paper edge.
SE-750 board
SE-751 board Detects the existence of paper in a paper feed
SE-762 board tray.
SE-752 board Detects that paper is incorrectly ejected
and that the paper in an eject tray is full.
SE-753 board Detects the paper edge.
SE-754 board
SE-755 board Detects that the bottom cover (chassis cover)
is opened and closed.
SE-756 board Detects that the ribbon door is opened and
closed.
Temperature detection _
of thermal head
SE-754 board Detects the temperature in this unit.
_ _
_ _
_ _
Detection of ribbon _
information
_ _
_ _
No. Name
@]
Eject roller
@\
Ink ribbon
@;
Take-up limiter
@'
Supply limiter
@,
Ribbon guide
@.
Mode lever
#/
Cam gear
UP-55MD