Intermec EasyCoder 501 – Service Manual Ed. 7
78
Chapter 10 Ribbon Save Device
10.6 Print Unit Assy,
cont.
Label Stop/Black Mark Sensor Description
The label stop/black mark sensor (LSS) consists of two main parts,
a carriage that moves in a dovetail-shaped channel in the extruded
profi le between the inner and outer gables, and a bracket with two
sets of sensors.
The movement of the carriage is controlled by a screw running
through the outer lower gable. The carriage cannot be remove
without extensive dismantling of the print unit.
Label Stop/Black Mark Sensor Replacement
To remove the LSS bracket from the carriage, for example when
cleaning or replacing a sensor, proceed as follows (see illustration
on the next page):
• Remove the upper and lower plastic guide plates.
• Remove the printhead.
• Adjust the LSS to approximately center position.
• Disconnect the cables from P-600 and P-601 on the CPU
board.
• Disengage the snap-lock, using a screwdriver from the media
compartment side, and push the outer end of the LSS bracket
upward. Then pull the bracket out from the carriage, taking care
not to damage the cables.
Note! The snap-lock is fragile.
Upper Sensor
Lower Sensor
Adjustment Screw
Carriage
Profi le
LSS Bracket
E-Ring
Note!
Cables not shown