Overview; Printer Mechanism Operating Principles; Printer Mechanism - Epson STYLUS COLOR 3000 Service Manual

2.1 Overview

This chapter describes the operating principles of the printer mechanism and electrical circuits.

2.2 Printer Mechanism Operating Principles

Printer Mechanism

The printer mechanism is composed of the printhead unit, paper feed mechanism, CR (Carriage)
mechanism and the pump mechanism. The block chart for the printer mechanism is shown in Figure 2-1.
The printer mechanism has 3 motors: CR motor, PF (Paper Feed) motor, and pump motor. Torque from the
CR motor moves the CR in the column direction. The PF motor loads, feeds, and ejects paper. The pump
motor drives the pump mechanism. The release lever switches from the PF motor side to the tractor side to
feed continuous paper.
Disengage Mechanism
PF Motor
CR Motor
EPSON Stylus Color 3000 Service Manual
Release Lever
Black
Color
Printhead
Printhead
Pump Motor
Figure 2-1. Printer Mechanism Block Diagram
EPSON Stylus COLOR 3000
Push Tractor Mechanism
Paper Feed Mechanism
ASF Mechanism
(For Cut sheets only.)
CR Unit
Pump Mechanism
2-1