Overview; Printer Mechanism - Epson Stylus CX7300 Service Manual

EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C

2.1 Overview

This section describes the operating principles of the Printer Mechanism and Electrical
Circuit Boards of EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200/TX203/
TX209/SX200/SX205 and Stylus CX8300/CX8400/DX8400/NX400/TX400/TX405/
TX409/SX400/SX405.
EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200/TX203/TX209/SX200/
SX205 and Stylus CX8300/CX8400/DX8400/NX400/TX400/TX405/TX409/SX400/
SX405 employs a newly developed printer mechanism that is different from the
previous model, Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/
CX6000/DX6000/DX6050. The CIS for the scanner is the same as that of the previous
models, however, the origin point is changed to front right from the far left due to the
change in appearance.

2.1.1 Printer Mechanism

EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200/TX203/TX209/SX200/
SX205 and Stylus CX8300/CX8400/DX8400/NX400/TX400/TX405/TX409/SX400/
SX405 printer mechanism consists of printhead, carriage mechanism, paper loading
mechanism, paper feed mechanism, and ink system.
As the conventional models, EPSON Stylus CX7300/CX7400/DX7400/NX200/
TX200/TX203/TX209/SX200/SX205 and Stylus CX8300/CX8400/DX8400/NX400/
TX400/TX405/TX409/SX400/SX405 is equipped with two DC motors; one is used to
drive the paper loading, paper feed mechanisms, and the pump mechanism that
includes the carriage lock mechanism, and another one is used to drive the carriage
mechanism. A paper is fed from the rear ASF unit by means of the LD roller and
Retard roller and ejected to the front tray.
OPERATING PRINCIPLES
PF Encoder Sensor
PF Roller
Star Wheel
Carriage Unit
EJ Roller
Ink System
Figure 2-1. Printer Mechanism block diagram
Overview
PF Scale
PF Motor
CR Timing Belt
CR Scale
CR Encoder Sensor
LD Roller
Retard Roller
Compression Spring
PE Sensor
Change Lever
CR Motor
Confidential
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