xiv Contents

Troubleshooting, continued

 

Italics (Epson Emulation)

123

Print Positioning

123

Paper Problems

124

Switch Panel

127

Communications

129

Printhead Performance

130

Troubleshooting Aids

131

Power-Up Sequence Test

131

Hex Dump Mode

132

Control Commands—An Introduction

 

Communication Basics

135

Identifying Data Bytes

136

Binary Number System

137

Decimal Number System

137

Hexadecimal Number System

138

Three Categories of Data Bytes

140

Sending Control Codes and Control Sequences

141

Using BASIC to Send Commands

142

Using Batch Files to Send Commands

142

Sending Commands From The DOS Command Line

144

Using Control Key Sequences To Send Commands

144

Typographic Conventions

146

Format

146

Parameters

147

Data Byte Values of Command Parameters

148

Zeros and Ones

148

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Image 14
Epson 4100 manual Control Commands-An Introduction