Overview; Printer Mechanism - Epson Stylus Photo PX650 Service Manual

Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635

2.1 Overview

Description in this chapter is applied to Epson Stylus Photo PX650/
C H E C K
TX650/TX659/PX660/PX660 Premiun/Artisan 635.
P O I N T
This section describes the operating principles of the printer mechanism of Epson
Stylus Photo PX650/TX650/TX659/PX660/PX660 Premiun/Artisan 635.

2.1.1 Printer Mechanism

The printer mechanism of this product consists of the printhead, carriage mechanism,
paper loading mechanism, paper feed mechanism, and the ink system.
As the conventional models, this product is equipped with two DC motors; one is used
to drive the paper loading and paper feed mechanisms, and also the pump mechanism
that includes the carriage lock mechanism. The other one is used to drive the carriage
mechanism. Paper is fed from the rear at the ASF unit with the LD roller and Retard
roller, and ejected to the front at the tray.
OPERATING PRINCIPLES
CD-R Guide
Sensor
CD-R Tray
Sensor
PW Sensor
Case Open
Sensor
Printhead
CR Assy
Eject Roller Shaft
CR Guide Shaft
CR Lock Lever CR Lock Lever
Cap Assy
I/S Assy
APG Unit
Figure 2-1. Schematic Printer Mechanism
Overview
PF Encoder APG Sensor
Revision C
PF Motor
PF Roller Shaft
CR Encoder
Retard Roller
LD Roller
PE Sensor
ASF Unit
CR Motor
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