Chapter 2 Before the Repair
2-19
2.5.8 Framework
No.
Name
Function
Reference on replacement
method
1
Cleaning brush
Clean the light condenser of the
optical unit.
•
Brush only:
the Brush (Cleaning Unit)
(Page 5-131)"
•
Whole cleaner:
Replacing the Cleaning Unit
(Page 5-135)"
2
MDU
A circuit board to control the
motors excluding subscan motors,
sensors, LED, LCD, operation
switches, speaker, and cooling
fans.
"5.10.2 Replacing the MDU
(Page 5-120)"
3
CIU
Controls the system with the
firmware.
"5.10.1 Replacing the CIU (Page
5-119)"
4
Tumbler (top)
A circuit board to fix the push plate
unit to read position with a spring.
"5.10.9 Replacing the Tumbler
(Upper) (Page 5-133)"
5
Transporter motor
Move the push plate unit.
"5.10.6 Replacing the
Transporter Motor (Page 5-127)"
6
Transporter read sensor
It goes ON when the push plate is
at the read position.
"5.10.5 Replacing the
Transporter Read Sensor (Page
5-126)"
7
Transporter HP sensor
It goes ON when the push plate
unit is at the home position.
"5.10.4 Replacing the
Transporter HP Sensor (Page 5-
125)"
8
Back plate absorption
detection
sensor
It goes ON when the push plate is
at the read position and back plate
is absorbed.
"5.10.7 Replacing the Back Plate
Absorption Detection Sensor
(Page 5-130)"
3
2
8
7
1
6
4
4
5
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