Table of contents
1
Theory of operation
..........................................................................................................
1
Basic operation
........................................................................................................................
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
............................................................................................................
5
Sleep mode
..............................................................................................................
5
Input/output
.............................................................................................................
6
CPU
........................................................................................................................
6
Memory
...................................................................................................................
6
Firmware
...................................................................................................
6
Nonvolatile memory
...................................................................................
6
PJL overview
.............................................................................................................
6
PML
.........................................................................................................................
7
Control panel
...........................................................................................................
7
Engine-control system
................................................................................................................
8
DC controller
............................................................................................................
9
Motors
....................................................................................................
12
Fans
.......................................................................................................
14
Fuser-control circuit
...................................................................................
15
Fuser temperature control
...........................................................
16
Fuser protective function
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17
Fuser failure detection
................................................................
18
Low-voltage power supply
.........................................................................
19
Overcurrent/overvoltage protection
.............................................
21
High-voltage power supply
........................................................................
22
Laser scanner system
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24
Laser failure detection
...............................................................................
25
Image-formation system
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26
Electrophotographic process
.....................................................................................
26
Image formation process
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28
ENWW
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