Ricoh C211 Service Manual page 244

INDEX
NAME
No.
Printed Circuit Board
Power Supply PCB
7
AC Drive PCB
31
Ink Detection PCB
38
CCD PCB
39
A/D Conversion PCB
40
Operation Panel
43
Main Control PCB
48
Image Processing PCB
50
Counters
Copy Counter
55
Master Counter
56
Others
Fluorescent Lamp Stabilizer
5
Thermal Head
8
Fluorescent Lamp
20
Encoder
26
Circuit Breaker
58
SM
FUNCTION
Rectifies 100V AC input and supplies DC voltage.
Controls the AC component by relays.
Control the ink supply.
Converts the light intensity into the electrical signal.
Converts the analogue signal into the digital signal.
Controls the LED performance and monitors the key
operation.
Controls all machine functions both directly and
through other boards.
Controls the master processing performance.
Keeps track of the total number of copies made.
Keeps track of the total number of masters made.
Stabilizes the power supplement to the fluorescent
lamp.
Burns the image on to the master.
Exposes the original.
Converts 16 image positions to 4 bit data.
Cuts the ac line.
1-8 C216