Brother HL-1260 service manual Basic Operations, Mechanical Configuration

CHAPTER II THEORY OF OPERATION

This chapter describes the printer functions, the relationship between the electrical systems and

mechanical systems, and the timing of operations. Striped conduits () indicate mechanical

linkages; solid thin arrows ( ) appearing with a signal name indicate the transmission of

single control signals and outlined thick arrows () indicate the transmission of groups of signals.

1. BASIC OPERATIONS

1.1 Mechanical Configuration

The printer functions can be divided into four blocks: the laser/scanner system, the image formation system, the paper pick-up/feed system and the control system.

	Font cartridge/card	Optional I/O
Expansion memory		(MIO)
(SIMM)

Main PCB

Control panel

CONTROL SYSTEM

IMAGE FORMATION SYSTEM

External Device

Cleaning unit

Delivery rollers Fixing unit Feeder

PAPER PICK-UP/FEED SYSTEM

Photosensitive drum	Laser/scanner
	unit
Developing
unit

LASER/SCANNER

SYSTEM

Transfer

separation unit

MP tray

Tray 1

Tray 2 (Option)

Figure 2.1

II - 1