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LX-105O+
Service Manual
Operating Principles
2.1 OVERVIEW
This section describes the operating principles of the printer mechanism and the electrical circuits
of 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 the
printer mechanism.
Q
Printhead
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Phase
CR HOME
Phase
PE
A
A
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