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Table of Contents
Page
4.1 Overview
119
4.2 Reporting Problems
120
4.3 Troubleshooting Updates
121
4.4 Troubleshooting Tips - Preliminary Checks
122
....4.4.02 Problem Categories
123
....4.4.03 START HERE Flowchart
124
....4.4.04 Tips for Preventing Image Problems
125
....4.4.05 Common Problems
126
........Epson / IBM, Self Test Revision 1.16 (FCO 7681)
127
........Missing Spaces When Printing Wide Reports (FCO 7693)
128
........Self Test Revisions 1.07 and 1.10 (FCO 7730)
129
........Parallel Timing Specification Changes
130
........Jumper SP2 Added to Main Control Board
131
........Font Name Changes in Menu Mode
132
........Modifications to Q6, Main Control Board
133
4.5 Abnormal Output
134
4.6 Fault Alarms
135
4.7 Repair Analysis Procedures (RAPS)
136
....RAP 01: Power Lamp Does Not Light
137
....RAP 02: Space Error (ALARM 57)
138
....RAP 03: Head Homing Error (ALARM 53)
139
....RAP 04: Ribbon Homing Error (ALARM 5B)
140
....RAP 05: Bail Home Error (ALARM 5C)
141
....RAP 06: Wrong Character, Character Omission, or Dot
Omission
142
....RAP 07: Ribbon Feed Trouble
143
....RAP 08: Line Feed Trouble
144
....RAP 09: Malfunction of Operator Panel Switch
145
....RAP 10A: Data Receive Failure
146
....RAP 10B: Parallel Interface Problem
147
....RAP 10C: Serial Interface Problem
148
....RAP 10D: Data Receive Failure (Alarm Light Lit)
149
....RAP 11: Color Ribbon Shift Problem
150
4.8 Printer Tests - General Information
151
....4.8.02 Rolling ASCII Print Test
152
....4.8.03 Font Test
153
....4.8.04 Serial Interface - Loopback Test
154
....4.8.05 Hexadecimal Dump
155
4.9 Resistance Checks - General Information
156
....4.9.02 Printhead Resistance Check
157
....4.9.03 Line Feed Motor Resistance Check
158
....4.9.04 Space Motor Resistance Check
159
....4.9.05 Ribbon Motor Resistance Check
160
A Board Diagrams