LX-105O+
Service Manual Operating Principles

2.1 OVERVIEW

This section describes the operating principles of the printer mechanism and the electrical circuitsof the LX-105O+.

2.2

OPERATING PRINCIPLES OF THE PRINTER MECHANISM

The
LX-105O+
printer mechanism is composed of the printhead unit, paper feed mechanism,carriage drive mechanism, and various sensors. The figure below shows a block diagram of theprinter mechanism.Q
Printhead
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Phase
CR HOME
Phase
PE
AA
v
v
Stepper Motor Stepper Motor
carnage
Home Paper End
Carriage Drive
Paper
Feed
I
1
I
I
1160nlStep
11216
’lStep
or
ll120*lStep
Figure 2-1. Block Diagram of the Printer Mechanism
RELEASE
FRICTIOtV
TRACTOR
1
Release
Lever
Position
Rev.
A
2-1