Technical information

Tools Required ......................................................................................5-2
Test Equipment Required ....................................................................5-2
Print Darkness Adjustment .................................................................5-2
Tear-Off Position Adjustment.............................................................5-3
Media Sensor Position Adjustment ...................................................5-4
Media and Ribbon Sensor Sensitivity Adjustment .........................5-5
Supplemental Media Sensor Sensitivity Adjustment..............5-6
Label Available Sensor Adjustment...................................................5-7
Printhead Maintenance ........................................................................5-7
Type A Printhead Removal, Replacement, and Adjustment ..5-8
Type B Printhead Removal, Replacement, and Adjustment5-13
Type C Printhead Removal, Replacement, and Adjustment5-16
Printhead Voltage Adjustment ......................................................... 5-20
Printhead Pressure Adjustment ....................................................... 5-21
Cutter Voltage Adjustment ............................................................... 5-22
Strip Plate Adjustment...................................................................... 5-24
Ribbon Supply Spindle Replacement............................................. 5-24
Dual-Tension Ribbon Supply Spindle Adjustment...................... 5-26
Ribbon Take-Up Spindle Tension Adjustment.............................. 5-27
Alternate Ribbon Take-Up Spindle Tension Adjustment............ 5-28
Backing Rewind Spindle Adjustment............................................. 5-29
Media Sensor Assembly Removal................................................... 5-30
Media Sensor Assembly Replacement ........................................... 5-30
Control Panel Assembly Removal .................................................. 5-31
Control Panel Circuit Board Replacement .................................... 5-31
Main Logic Board Removal ............................................................. 5-32
Main Logic Board Installation ........................................................ 5-32
EPROM Software Installation ......................................................... 5-33
Parts Supplied ............................................................................. 5-33
Upgrade Procedure..................................................................... 5-33
Main Drive Belt Removal, Replacement, and Adjustment
for Printers Without the Peel-Off Option .............................. 5-35
Main Drive Belt Removal, Replacement, and Adjustment
for Printers Equipped with the Peel-Off Option................... 5-36
Platen Replacement ........................................................................... 5-37
Ribbon Take-Up Motor Replacement............................................. 5-38
Stepper Motor Replacement ............................................................ 5-38
Motor Balance Procedure................................................................. 5-39
Power Supply Removal..................................................................... 5-40
Power Supply Replacement ............................................................. 5-40
AC Power Fuse Replacement .......................................................... 5-41
Battery Replacement ......................................................................... 5-42
44868L Page 5-1