Oki Microline 520 - Power Up and Load Paper

4.6 FAULT ALARMS......................................................................................................... 4-18
4.6.01 General Information........................................................................................4-18
4.6.02 ALARM/LED Display Troubleshooting Table Index ....................................4-19
4.6.03 ALARM/LED Display Troubleshooting Tables.............................................4-20
4.7 REPAIR ANALYSIS PROCEDURES (RAPs)............................................................. 4-22
4.7.01 Using the RAPs...............................................................................................4-22
4.7.02 RAP Index....................................................................................................... 4-23
RAP 01 No Power Supplied to Printer.....................................................................4-24
RAP 02 No Spacing Operation................................................................................4-26
RAP 03 Printhead Homing Error.............................................................................4-28
RAP 04 Paper Jam During Paper Loading ..............................................................4-30
RAP 05 Printhead Pins Not Firing........................................................................... 4-31
RAP 06 Poor Print Quality....................................................................................... 4-32
RAP 07 Ribbon Feed Problem.................................................................................4-33
RAP 08 Line Feed Problem.....................................................................................4-34
RAP 09 Operation Panel Malfunction..................................................................... 4-37
RAP 10 Parallel Interface Problem..........................................................................4-38
RAP 11 Serial Interface Problem............................................................................. 4-40
4.8 PRINTER TESTS..........................................................................................................4-43
4.8.01 General Information........................................................................................4-43
4.8.02 Rolling ASCII Test .........................................................................................4-44
General Information.................................................................................................4-44
Procedure .................................................................................................................4-44
Sample......................................................................................................................4-45
4.8.03 Font Test .........................................................................................................4-46
General Information.................................................................................................4-46
Procedure .................................................................................................................4-46
Sample......................................................................................................................4-47
4.8.04 Serial Interface Loopback Test....................................................................... 4-48
Loopback Connector Configuration ........................................................................4-49
Serial Cable Information.......................................................................................... 4-50
Serial Interface Signal Requirements....................................................................... 4-50
Commonly Used Serial Cable Configurations......................................................... 4-51
IBM 25-Pin Cable Configuration.......................................................................4-51
IBM 9-Pin Cable Configuration.........................................................................4-51
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