106 Theory of operation ENWW
Basic operation
The HP Color LaserJet 3500 and 3700 series printer functions are divided into four systems:
● engine control system
● laser/scanner system
● image formation system
● pickup/feed system
Upon receipt of printing commands from the external device via the formatter, the engine control
system provides control for the laser/scanner system, the image formation system, and the pickup/
feed system and performs print operations. The engine control system receives status from each
system and sends the necessary information back to the formatter.
Figure 5-1 Basic system operation
Note The terms fixing and fuser refer to the same operation (or assembly) and are used interchangeably
in this document. Also, ITB unit and transfer unit refer to the same assembly and are used
interchangeably throughout this document.
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