Overview; Printer Mechanism - Epson STYLUS CX3500 Service Manual

EPSON Stylus CX3500/CX3600/CX3650/CX4500/CX4600

2.1 Overview

This section describes the operating principles of the Printer Mechanism, Scanner
Mechanism and Electrical Circuit Boards.
V Main Board
T
C577 Main Board (Stylus CX3500/CX3600/CX3650)
T
C571 Main Board (Stylus CX4500/CX4600)
V Power Supply Board
T
C571 PSB/PSE Board
V Panel Board
T
C571 PNL Board

2.2 Printer Mechanism

2.2.1 Printer Mechanism
The Printer Mechanism for the Stylus CX3500/CX3600/CX3650 is newly designed.
But, the basic component of the Printer Mechanism is almost the same as the previous
printer (Stylus Photo R300/R310). And also, the Stylus CX4500/CX4600 is successor
to the Stylus CX3500/CX3600/CX3650 and is the same as its Printer Mechanism.
This printer consists of the Print Head, Carriage Mechanism, Paper Loading
Mechanism, Paper Feeding Mechanism, Ink System.
Like the previous printers, the Stylus CX3500/CX3600/CX3650/CX4500/CX4600 is
equipped with two DC motors; one for the Paper Loading/Feeding Mechanism and the
Pump Mechanism with the CR Lock Mechanism, and one for the CR Mechanism. The
ASF Unit for the Paper Loading Mechanism uses rear entry front eject system. The
Paper Feeding Mechanism uses the LD Roller and Retard Roller to feed paper to the
Printer Mechanism in the same way as previous printers.
OPERATING PRINCIPLES
PF Encoder Sensor
PG Sensor
PF Roller
Star Wheel
PW Sensor
Carriage Unit
EJ Roller
Change lever
Cap Unit
Figure 2-1. Printer Mechanism block diagram
Overview
Revision A
PF Scale
CR Motor
PF Motor
Timing Belt
CR Encoder
Sensor
LD Roller
Retard Roller
Compression
Spring
PE Sensor
Clutch mechanism
Pump Unit
53