Oki ML521, ML520 manual Illustrated Parts Listing

Table of Contents	Page
....4.4.04 Tips for Preventing Image Problems	123
....4.4.05 Common Problems	124
4.5 Abnormal Output - Output Samples	125
....Left Margin Drifting Problem	126
4.6 Fault Alarms	127
....4.6.02 ALARM/LED Display Troubleshooting Table Index	128
....4.6.03 ALARM/LED Display Troubleshooting Tables	129
4.7 Repair Analysis Procedures (Raps)	130
....4.7.02 RAP Index	131
........RAP 01 No Power Supplied to Printer	132
........RAP 02 No Spacing Operation	133
........RAP 03 Printhead Homing Error	134
........RAP 04 Paper Jam During Paper Loading	135
........RAP 05 Printhead Pins Not Firing	136
........RAP 06 Poor Print Quality	137
........RAP 07 Ribbon Feed Problem	138
........RAP 08 Line Feed Problem	139
........RAP 09 Operation Panel Malfunction	140
........RAP 10 Parallel Interface Problem	141
........RAP 11 Serial Interface Problem	142
4.8 Printer Tests	143
....4.8.02 Rolling ASCII Test	144
....4.8.03 Font Test	145
....4.8.04 Serial Interface Loopback Test	146
........Serial Cable Information	147
........Serial Interface Signal Requirements	148
........Commonly Used Serial Cable Configurations	149
....4.8.05 Hexadecimal Dump Mode	150
4.9 Resistance Checks	151
........Layout Diagram	152
....4.9.02 Printhead	153
....4.9.03 Line Feed Motor Resistance	154
....4.9.04 Space Motor Resistance	155
A Reference Charts
A.1 Overview - A.1.01 General Information	156
A.2 Index To Charts	157
........Board Layout	158
....A.2.01 Main Controller Board (FJIM)	159
....A.2.02 Operator Panel Board (LEOP)	160
....A.2.03 Power Supply Assembly	161
....A.2.04 Space Motor Board	162
....A.2.05 RS232-C Serial Interface Board - Option (LXHI)	163
B Illustrated Parts Listing
B.1 Overview - B.1.01 General Information	164