Specifications

Contents 7193 Service Guide
August 1998viii
Chapter 4: Troubleshooting 33
Operator Panel Lights.............................................................................................................33
Field Effect Transistors (FETs))............................................................................................. 34
Operating Problems................................................................................................................ 35
Electronic Problems................................................................................................................ 37
Printing Problems ................................................................................................................... 37
Chapter 5: Disassembling and Reassembling the Printer 39
Getting Started......................................................................................................................... 39
Tools................................................................................................................................... 39
Removing the Receipt Cover..........................................................................................40
Removing the L Cover.....................................................................................................41
Removing the Print Mechanism and PC Board Assembly................................................ 42
Separating the Print Mechanism and PC Board Assembly...............................................44
Disconnecting Cables.......................................................................................................45
Disassembling the Print Mechanism.................................................................................... 46
Removing the Knife Assembly....................................................................................... 46
Replacing the Knife Assembly.......................................................................................47
Removing the Printhead................................................................................................. 48
Replacing the Printhead.................................................................................................. 49
Removing the Knife Motor............................................................................................. 49
Replacing the Knife Motor..............................................................................................50
Removing the Switches................................................................................................... 50
Replacing the Switches.................................................................................................... 51
Removing the Paper Feed Motor................................................................................... 51
Replacing the Paper Feed Motor.................................................................................... 51
Disassembling the PC Board Assembly............................................................................... 52
Removing the ESD/EMC Shield.................................................................................... 52
Replacing the ESD/EMC Shield....................................................................................52
Replacing the Print Mechanism ............................................................................................53
Replacing the PC Board Assembly on the Print Mechanism.....................................53
Reconnecting the Cables and Harnesses.......................................................................53
Replacing the Print Mechanism ............................................................................................54
Finishing Up............................................................................................................................54
Replacing the L-Cover.....................................................................................................54
Replacing the Receipt Cover...........................................................................................54
Checking out the Printer................................................................................................. 54
Appendix A: Specifications 55
Features....................................................................................................................................55
Reliability................................................................................................................................. 55
Environmental Conditions..................................................................................................... 55
Power Requirements...............................................................................................................56
Dimensions and Weight.........................................................................................................56
Printing Specifications............................................................................................................57
Density of Receipt Print Lines...............................................................................................58
Duty Cycle Restrictions (Printing Solid Blocks).................................................................. 58