Overview; Printer Mechanism - Epson Stylus COLOR 670 Service Manual

EPSON Stylus COLOR 670

2.1 Overview

This section describes the operating principles of the printer mechanism and
electrical circuit boards. The EPSON Stylus COLOR 670 has the following
boards:
o
Main board: C301MAIN
o
Power supply board: C301PSB/PSE
o
Panel board: C209PNL Board

2.1.1 Printer Mechanism

EPSON Stylus COLOR 670 is based on Stylus COLOR 660 and the basic
specifications for its mechanism are almost same as Stylus COLOR 660.
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 EPSON Stylus COLOR 670 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
design is the same as Stylus COLOR 660.
For cap assembly, EPSON Stylus COLOR 670 uses valveless mechanism; new
design for this model.
Figure 2-1 on page 32 shows the outline of the printer mechanism.
The table below shows the compatibility of the mechanical units among ,
Stylus COLOR 660 and EPSON Stylus COLOR 670.
Operating Principles
Table 2-1. Printer Mechanism Comparison
Item
Printhead
CR motor
(coil resistance)
PF moto
(coil resistance)
ASF unit
Paper feeding mechanism
Pump unit
Capping unit
Frame parts
Main board
PSB/PSE board
Overview
Stylus COLOR 660 Stylus COLOR 670
E-CHIPS E-CHIPS +
7.8 7.8
7 7
Quiet noise type Quiet noise type
Bottom edge: 14m Bottom edge:
enabled 3mm enabled
Valve type Valve less type
SC640 Type SC 640 type
C256MAIN-B C301MAIN
C206PSB\PSE C301PSB/PSE
Revision A
31