Overview; Printer Mechanism - Epson Stylus CX4900 Service Manual

EPSON Stylus CX4900/CX4905/CX5000/DX5000/DX5050/CX5900/CX6000/DX6000/DX6050

2.1 Overview

This section describes the operating principles of the Printer Mechanism, Scanner
Mechanism and Electrical Circuit Boards.
Main Board
C657 Main Board
Power Supply Board
C610 PSB/PSE Board
Panel Board
C571 PNL Board (EPSON Stylus CX4900/CX4905/CX5000/DX5000/
DX5050)
C657 PNL Board (EPSON Stylus CX5900/CX6000/DX6000/DX6050)
I/F Board
C610 I/F Board
Head Board
C654 HEAD Board

2.2 Printer Mechanism

2.2.1 Printer Mechanism
This printer consists of the Print Head, Carriage Mechanism, Paper Loading
Mechanism, Paper Feeding Mechanism, Ink System.
Like the previous printers, EPSON Stylus CX4900/CX4905/CX5000/DX5000/
DX5050/CX5900/CX6000/DX6000/DX6050 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
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