Ricoh DD 5450, Field Service Manual, Page: 398 / 403

396
Chapter 9 Electrical Parts Layout and Their Functions
9
(5) PCB unit/Others
Item No. Functions
CCD PCB unit 1 Reading the picture image.
Panel LED PCB 2 LED indication.
Panel PCB 3 Control panel key, display.
Color LCD panel 4 Liquid crystal display
Touch panel 5 Control panel key
Main PCB unit 6 Image memory and controlling the parallel communication
Drive PCB unit 7 Driving the motor.
Relay PCB unit 8 To control the 24V power and to supply the thermal head power.
24V power supply 9 24V supply
5V power supply 10 5V power (to supply 5V)
Main motor PCB unit 11 Controlling the main motor.
USB PCB unit 12 -
Ink detection PCB unit 13 Detecting Ink amount in the drum.
Inlet 14 -
LED Lamp 15 -
Thermal head 16 Thermal head
USB expansion PCB unit 17 -
Battery PCB unit 18 -
4
3
15
16
12
11
8
10
7
9
2
13
1
6
14
18
17
5
1