Printronix T4204 Maintenance Manual page 10

Table of Contents
Communications Failures .................................................................... 43
Ribbon Wrinkle Adjustment ................................................................. 45
4 Replacing Printer Components ........................... 49
Removal Procedures ........................................................................... 49
Required Tools .............................................................................. 49
Torque Requirements ................................................................... 50
List Of Removal And Replacement Procedures............................ 50
Top Cover Assembly ..................................................................... 52
Printhead....................................................................................... 54
Power Supply ................................................................................ 56
Converting Power Supply Voltage ................................................ 58
Power Supply Fuse ....................................................................... 60
AC Power Switch .......................................................................... 61
Controller PCBA ............................................................................ 62
Label Guide And Sensor Assembly .............................................. 64
Control Panel Assembly ................................................................ 66
Front Door Assembly .................................................................... 68
Motor Assembly ............................................................................ 70
Printhead Data/Power Cable Assembly ........................................ 72
Flash SIMM And DRAM SIMM...................................................... 74
Ribbon Drive Belt (324 Tooth)....................................................... 76
Platen Drive Belt (120 Tooth) ........................................................ 78
Platen ............................................................................................ 80
Platen Bearing, Flanged................................................................ 82
Clutch Pulley ................................................................................. 82
Label Rewind Pulley...................................................................... 84
Ribbon Take-Up Pulley ................................................................. 86
Printhead Carriage Assembly ....................................................... 88
Label And Ribbon Tube Assemblies ............................................. 90
Shaft Support Housings ................................................................ 92
Media Support Assembly .............................................................. 93
Checking And Adjusting Cable Clearances .................................. 94
Sensor And Printhead Data/Power Cable Clamp ......................... 96
Terminating Resistors ................................................................... 98
5 Illustrated Parts Breakdown ................................ 99
Organization Of This Chapter .............................................................. 99
Illustrated Parts Breakdown................................................................. 99
A Specifications ................................................... 117
Printer Specifications ......................................................................... 117
Printing Specifications ....................................................................... 119