Overview; Printer Mechanism - Epson Stylus CX3700 Service Manual

EPSON Stylus CX3700/CX3800/CX3805/CX3810/DX3800/DX3850

2.1 Overview

This section describes the operating principles of the Printer Mechanism, Scanner
Mechanism and Electrical Circuit Boards.
Main Board
C612 Main Board
Power Supply Board
C610 PSB/PSE Board
Panel Board
C612 PNL 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, the Stylus CX3700/CX3800/CX3805/CX3810/DX3800/
DX3850 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
PF Roller
Star Wheel
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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