How to troubleshoot the 79:04 system error ..................................................................................................... 25
3 System error codes ...................................................................................................................................... 37
What to do if the front panel is blank ................................................................................................................. 38
System error codes .............................................................................................................................................. 38
Explanation of system error codes and warnings .............................................................................................. 38
Continuable and non-continuable error codes ................................................................................................... 41
4 Ink supplies ................................................................................................................................................ 69
What are ink supplies? ......................................................................................................................................... 70
General information about the ink supplies ....................................................................................................... 72
General precautions when handling ink supplies ............................................................................................... 72
Priming the ink system ........................................................................................................................................ 73
When should you replace the ink supplies? ........................................................................................................ 73
Obtaining Ink Cartridge information ................................................................................................................... 73
Obtaining Printhead information ........................................................................................................................ 74
Summary of solving ink supplies problems ........................................................................................................ 77
Troubleshooting Printhead error codes .............................................................................................................. 78
Carriage Interconnect Wiper ................................................................................................................................ 79
Warranty information for ink supplies ................................................................................................................ 79
5 Service tests and utilities ............................................................................................................................. 81
Introduction ......................................................................................................................................................... 82
Diagnostics—self test ......................................................................................................................................... 82
Phone support ..................................................................................................................................................... 82
Service tests (diagnostics) .................................................................................................................................. 82
Entering the Service Tests menu ........................................................................................................................ 83
Service utilities .................................................................................................................................................... 98
6 Service calibrations ................................................................................................................................... 113
Service calibrations ........................................................................................................................................... 114
Entering the Service Calibrations menu ............................................................................................................ 115
7 Print quality .............................................................................................................................................. 137
Initial print-quality troubleshooting actions .................................................................................................... 138
Troubleshooting tools ....................................................................................................................................... 139
How to use the Image Quality Service Diagnostic Print ................................................................................... 142
Print-quality issues by symptom ...................................................................................................................... 157
Working with other commercially available papers ......................................................................................... 170
8 Parts and diagrams .................................................................................................................................... 175
Printer ................................................................................................................................................................ 176
Stacker ............................................................................................................................................................... 194
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