Epson Stylus Photo PX650 - 2.1.1 Printer Mechanism

Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635 Revision C
OPERATING PRINCIPLES Overview 35
Confidential
2.1 Overview
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.
Figure 2-1. Schematic Printer Mechanism
C H E C K
P O I N T
Description in this chapter is applied to Epson Stylus Photo PX650/
TX650/TX659/PX660/PX660 Premiun/Artisan 635.
PF Motor
CR Motor
CR Encoder
PE Sensor
PF Roller Shaft
APG Sensor
PF Encoder
APG Unit
I/S Assy
CR Lock Lever
Cap Assy
CR Guide Shaft
Eject Roller Shaft
CR Lock Lever
CR Assy
PW Sensor
Case Open
Sensor
CD-R Guide
Sensor
CD-R Tray
Sensor
ASF Unit
LD Roller
Retard Roller
Printhead