Epson Stylus CX4300 - 2.2 Printer Mechanism

EPSON Stylus CX4300/CX4400/CX5500/CX5600/DX4400/DX4450 Revision A
OPERATING PRINCIPLES Overview 24
2.1 Overview
This section describes the operating principles of the Printer Mechanism, Scanner
Mechanism and Electrical Circuit Boards.
2.2 Printer Mechanism
Printer mechanism of Stylus CX4300/CX4400/CX5500/CX5600/DX4400/DX4450
consists of printhead, carriage mechanism, paper loading/feeding mechanism, and ink
system.
As in the case of conventional models, Stylus CX4300/CX4400/CX5500/CX5600/
DX4400/DX4450 has two motors; one is a stepping motor for paper loading/feeding
mechanism, and the other is a DC motor for carriage mechanism.
Papers are fed from the backside and ejected from the front side of the printer.
Paper feeding mechanism feeds papers using the LD roller and the retard roller.
Figure 2-1. Printer Mechanism Outline
PF motor
Carriage unit
CR motor
Pump unit
Clutch
Cam, large
Compression
spring
LD roller
Cam, small
CR encoder
sensor
CR timing belt
PF roller
PE sensor
Star wheel
rollers
Paper eject
roller
CR lock lever
Cap unit
Retard roller