Table of contents
1 Theory of operation ....................................................................................................................................... 1
Basic operation ...................................................................................................................................................... 2
Sequence of operation ........................................................................................................................ 4
Formatter-control system ..................................................................................................................................... 5
Formatter hardware ............................................................................................................................ 5
Sleep mode ....................................................................................................................... 6
Input/output ...................................................................................................................... 6
CPU .................................................................................................................................... 6
Memory ............................................................................................................................. 6
Firmware ........................................................................................................................... 6
Nonvolatile memory ......................................................................................................... 7
PJL overview ..................................................................................................................... 7
PML .................................................................................................................................... 7
Control panel ....................................................................................................................................... 7
Engine-control system .......................................................................................................................................... 8
DC controller ........................................................................................................................................ 9
Solenoids ......................................................................................................................... 10
Clutches ........................................................................................................................... 10
Switches .......................................................................................................................... 10
Sensors ............................................................................................................................ 11
Motors ............................................................................................................................. 12
Fans ................................................................................................................................. 13
High-voltage power supply ............................................................................................ 14
Low-voltage power supply ............................................................................................. 16
Over-current/over-voltage protection ........................................................ 17
Safety ............................................................................................................ 17
Function ........................................................................................................ 18
Voltage detection ......................................................................................... 18
Sleep (power save) mode ............................................................................. 18
Low-voltage power supply failure ............................................................... 19
Fuser control ................................................................................................................... 19
Fuser temperature control ........................................................................... 20
ENWW v
To Next Page
Loading...