Table of contents 1 Theory of operation .......................................................................................................... 1 Basic operation ........................................................................................................................ 2 Major print systems ................................................................................................... 2 Internal components .................................................................................................. 3 Operating sequence ..................................................................................................
7 Formatter system ...................................................................................................................... 8 Sleep mode .............................................................................................................. 8 Input/output ............................................................................................................. 8 USB .......................................................................................................... 8 Embedded print server ................................................................................
9 Hard-disk .................................................................................................. 9 CPU ......................................................................................................... 9 Memory ................................................................................................................... 9 Random-access memory .............................................................................. 9 Nonvolatile memory ................................................................................... 9 DIMM slot ................................................................................................................
9 PJL overview ........................................................................................................... 10 PML ....................................................................................................................... 10 Control panel ......................................................................................................... 10 Engine-control system .............................................................................................................. 11 DC controller PCA ...................................................................................................
12 Sensors, solenoids, and switches ............................................................................... 13 Motors and fans ...................................................................................................... 14 Failure detection ...................................................................................... 14 Motor failure ............................................................................ 14 Fan motor failure ....................................................................... 14 Engine power supply ................................................................................
15 Fuser-control circuit .................................................................... 15 Low-voltage power supply .......................................................... 17 High-voltage power supply ......................................................... 18 Overcurrent/overvoltage protection ............................................. 19 Image-formation system ........................................................................................................... 20 ENWW v