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Registration Sensor
S6
S7
Paper Exit Sensor
s8
Scanner Home
Position Sensor
S9
Toner Overflow Sensor
Slo
Oil End Sensor
Sll
Paper Lift Sensor
S12
Original ID Sensor
Printed Circuit Boards
PCB1
Main PCB
PCB2
Lamp Control PCB
PCB3
AC Drive PCB
PCB4
Operation Panel PCB
Lamps
L1
Quenching Lamp
L2
Exposure Lamp
L3
Pre-Transfer Lamp
L4
Fusing Lamp
Power Packs
P1
Separation Power
Pack
P2
CTB Power Pack
Counters
Col
Total Counter
C02
Key Counter
Misfeed detector; also sets operation
timing.
Misfeed detector.
Informs the CPU when the scanner is
at the home position.
Detects when the used toner tank is
full .
Detects when the oil level is low.
Determines when the paper has
reached the correct feed position.
Senses the background density of the
original document.
Controls all copier functions both
directly and through other PCBS.
Maintains stable lamp output.
Drives the main motor, optics cooling
fan, and the neon lamps.
The operator controls the machine
through this
board.
Neutralizes any charge remaining on
the drum surface after cleaning.
Exposes the original with high
intensity light.
Reduces charge on the drum surface
before transfer.
Heats the fusing unit.
Provides ac voltage for the separation
corona.
Provides high voltage power for the
charge corona, transfer corona, and
the development roller bias.
Keeps track of the total number of
copies made.
Prevents the use of the copier until
installed. Keeps a separate count of
copies for administrative purposes.
(Option)
1-13
1
N o v .
' 8 7
31
38
6
4
40
26
30
21
43
12
34
10
1
36
39
5
24
32
22
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