Casio UP-250 Technical Manual page 7

Lubricants ..................................................................................................................... 66
Standard Lubrication ........................................................................................................ 66
Lubricants ......................................................................................................................... 66
Lubrication Points ............................................................................................................. 67
Tool List ........................................................................................................................ 67
Chapter 4 Troubleshooting ...................................................................................... 68
Self-test ......................................................................................................................... 68
Initiating the Self-test ........................................................................................................ 68
Self-test Standby .............................................................................................................. 68
Ending the Self-test .......................................................................................................... 68
Troubleshooting Flowchart ......................................................................................... 69
Troubleshooting Tables ............................................................................................... 76
Error Types and Countermeasures ............................................................................ 82
Chapter 5 Disassembly, Assembly, and Adjustment ............................................. 87
Small Part Specifications ............................................................................................ 87
Disassembly ................................................................................................................. 88
Removing the fuse ............................................................................................................ 88
Removing the print head unit ............................................................................................ 89
Removing the auto-cutter ................................................................................................. 91
Removing the main circuit board assembly ...................................................................... 92
Sub-assembly A ........................................................................................................... 94
Paper feed frame unit assembly ....................................................................................... 94
Main Assembly 1 .......................................................................................................... 98
Ribbon switch lever, ribbon release spring, ribbon release lever,
ribbon intermediate gear, ribbon transmission gear, ribbon take-up assembly,
and ribbon drive plate assembly ....................................................................................... 98
Main Assembly 2 ........................................................................................................ 100
Tension plate assembly .................................................................................................. 100
Main Assembly 3 ........................................................................................................ 100
Paper feed frame assembly ............................................................................................ 100
Main Assembly 4 ........................................................................................................ 101
Carriage motor assembly................................................................................................ 101
Main Assembly 5 ........................................................................................................ 102
Carriage sub assembly ................................................................................................... 102
Main Assembly 6 ........................................................................................................ 103
Carriage shaft assembly ................................................................................................. 103
Main Assembly 7 ........................................................................................................ 104
Adjustment roller shaft holder assembly ......................................................................... 104
Main Assembly 8 ........................................................................................................ 105
Carriage guide shaft assembly ....................................................................................... 105
Main Assembly 9 ........................................................................................................ 105
Belt tension spring assembly .......................................................................................... 105