Overview; Printer Mechanism - Epson STYLUS COLOR 580 Service Manual

EPSON Stylus COLOR 580

2.1 Overview

This section describes the operating principles of the printer mechanism and electrical
circuit boards. The Stylus COLOR 580 has only the following two circuit boards and
dose not have control panel:
o
Main board:C379MAIN-C (or C379MAIN-B) *1
o
Power supply board:C367 PSB/PSE
NOTE: *1): C379MAIN-B board is used for the product in the first mass
production and it will be changed to C379MAIN-C board at an early
date. The major difference is that C379MAIN-C has one chip CPU
which include the ASCI function. This section describes the operation
principle of C379MAIN-C.

2.1.1 Printer Mechanism

The printer mechanism for Stylus COLOR 580 is designed newly. But, the basic
component of the printer mechanism is same as previous product.
This printer consists of Print Head, Carriage Mechanism, Paper Feeding Mechanism,
Paper Loading Mechanism, Ink System (Pump Mechanism, Cap Mechanism, and
Carriage Lock Mechanism).
Like other EPSON ink jet printers, the Stylus COLOR 580 is equipped with two
stepping motors; one for ASF, Paper feeding/ Pump mechanism, and one for CR
mechanism. ASF unit uses rear entry front eject system. This ASF unit is also designed
newly and single LD roller loads the paper to the printer mechanism.
For cap assembly, Stylus COLOR 580 uses valveless mechanism; new design for this
model.
Operating Principles
Paper Eject Roller
Star Wheel Roller
CR unit
Cap Assembly
CR lock lever
Pump Assembly
Figure 2-1. Printer Mechanism block diagram
Overview
Revision A
PF Roller
CR Timing belt
HP/PE/IC Sensor
LD Roller
Paper feed back plate
Paper separation pad
ASF Hopper Spring
Clutch mechanism
PF Motor
CR Motor
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