ML620/ML621 User’s Guide 4
Chapter 5: Maintenance .............................................................. 69
Replacing the Ribbon Cartridge ........................................................69
Ribbon Cartridge Handling ....................................................69
If ribbon should contact the eyes: ..........................................72
If ribbon should contact the skin ............................................72
For more information .............................................................72
Clearing Paper Jams ...........................................................................72
Continuous Feed Paper Jams ..................................................72
Cut Sheet Paper Jams ..............................................................74
Cleaning the Printer ............................................................................75
Printer Exterior ..........................................................................75
Printer Interior ...........................................................................76
Testing the Printer ...............................................................................77
Font Sample Test .....................................................................77
Rolling ASCII Test ....................................................................78
Hexadecimal Dump Mode ........................................................79
Chapter 6: Troubleshooting ....................................................... 80
General Information ............................................................................80
Responding to Alarm Conditions ......................................................81
Problems / Solutions............................................................................82
Appendix A: Parts & Accessories .............................................. 88
Purchasing Parts & Accessories .......................................................88
Consumables .......................................................................................89
Accessories .........................................................................................89
Appendix B: Printer Control Codes ........................................... 90
IBM Proprinter III Commands .............................................................90
Epson FX Commands .........................................................................93
Oki MICROLINE Standard Commands ..............................................95
Appendix C: Specications ........................................................ 97
Print Method .............................................................................97
Printhead ..................................................................................97
Interfaces ..................................................................................97
Receive Buffer Size ..................................................................97
Printhead Life .........................................................................97
Reliability ..................................................................................97
Ribbon Life .............................................................................97
Emulations (co-resident) ...........................................................97
Physical Specications .............................................................97
ML620 ....................................................................................97
ML621 ....................................................................................97
Print Speed ...............................................................................98
Characters per Line (cpl) ..........................................................98
Graphics Resolution .................................................................98
Resident Fonts ..........................................................................98
Bar Codes .................................................................................99
Paper Thickness: Tractor Feed ................................................99
Environmental Requirements ...................................................99
Temperature ..........................................................................99
Humidity .................................................................................99
Electrical Requirements ............................................................99
Paper Specications ...............................................................100
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