EPSON Stylus COLOR 3000
EPSON Stylus Color 3000 Service Manual
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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.
Release Lever
Disengage Mechanism
PF Motor
CR Motor
Color
Push Tractor Mechanism
Paper Feed Mechanism
ASF Mechanism
(For Cut sheets only.)
Pump Mechanism
CR Unit
Pump Motor
Black
Printhead
Printhead
Figure 2-1. Printer Mechanism Block Diagram