Table of contents
1
Theory of operation
........................................................................................................................................
1
Basic operation
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2
Major product systems
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2
Product block diagram
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2
Sequence of operation
.........................................................................................................
3
Normal sequence of operation
............................................................................
3
Formatter-control system
.....................................................................................................................
4
Sleep mode
..........................................................................................................................
4
Input/output
..........................................................................................................................
4
CPU
.....................................................................................................................................
4
Memory
................................................................................................................................
4
Firmware
.............................................................................................................
5
Memory use
........................................................................................................
5
PJL overview
.......................................................................................................................
5
LEDM overview
....................................................................................................................
5
ACL overview
.......................................................................................................................
5
Control panel
.......................................................................................................................
6
Wireless PCA
.......................................................................................................................
6
Engine-control system
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7
Motors, fans, clutches, solenoids, switches, and sensors
...................................................
8
DC controller operations
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11
Fuser-control circuit
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12
Fuser failure detection
.......................................................................................
13
Fuser temperature control
.................................................................................
14
Fuser protective function
...................................................................................
15
Pressure roller cleaning
....................................................................................
15
Low-voltage power supply
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16
Overcurrent/overvoltage protection
...................................................................
17
High-voltage power supply
................................................................................................
18
Laser/scanner system
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19
Laser failure detection
.......................................................................................
20
Image-formation system
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21
Electrophotographic process
.............................................................................................
21
Image formation process
...................................................................................................
23
ENWW
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