Service manual
HTTP://BBS.FIXCLUB.COM.CN
EPSON LQ-300+ Revision C
Operating Principles Overview 31
2.1 Overview
LQ-300+ consists of the printer mechanism and electric circuit boards.
Figure 2-1. Component Unit
Circuit board
Main (control circuit): C395MAIN Board
Power: C294PSB / C294PSE Board
Panel: C294PNL Board
The following sections describe the operating principles of each unit.
Power Supply
Board
C294PSB/PSE
Main Board
C395MAIN
Printer
Mechanism
Panel Board
C294PNL