Basic printer functions

This chapter presents a generalized functional overview of the printer and the printing processes. The following printer systems are discussed:

lDC Controller System/ Power System

lFormatter System

lImage Formation System

lPaper Feed System

lLaser/Scanner System

Figure 5-1 is a generalized block diagram of the printer:

Front Output Slot

Paper Output Bin

Laser/Scanner System

 

 

 

Formatter System

Control

 

 

 

 

 

 

 

 

 

 

 

 

Scanning Mirror

 

 

 

Formatter

 

 

Panel

 

 

 

 

 

 

 

 

 

 

 

 

 

Laser

 

 

BD

 

 

 

DC Controller/Power System

 

 

 

 

 

 

 

 

 

 

Diode

 

 

Circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC Controller

 

 

Scanner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor

 

 

 

 

 

 

 

 

 

Image Formation

 

 

 

 

 

 

 

 

System

 

 

 

 

 

 

SingleSheet Input Slot

PaperInput Tray

 

 

 

Roller

 

 

 

Unit

 

 

 

Primary

 

 

 

Developing

 

 

 

 

 

Charging

 

 

 

 

 

 

 

 

 

 

 

Photo-

 

 

 

 

 

 

 

Cleaner

sensitive

 

Pick-

 

 

 

 

 

drum

 

 

 

Fusing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

up

 

 

Assembly

 

 

 

 

 

Transfer

 

Unit

 

 

 

 

 

 

 

 

 

 

 

 

 

Charging

Roller

Pick Up/Feed System

Figure 5-1Printer functional block diagram

54 Functional overview

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