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5. Hold the printhead assembly by the printhead cover as it is released.
6. Push the release tab down on the power supply cable assembly and
remove the cable from the printhead assembly.
7. Use the pull-tab to remove the printhead controller cable assembly from
the printhead assembly.
8. Push the release tab down on the upper media sensor cable assembly
and remove the cable from the printhead assembly.
NOTE: 1. Older printers do not have this sensor or cable. (The printhead
operates correctly in older printers without this sensor.)
2. The position of the upper media sensor connector varies with the
width of the printer: it is in the middle on 4 inch models, the left side
on 6 inch models (Figure 42), and the right side on 8 inch models.
Installation
CAUTION
To prevent electrostatic damage to electronic components, ground
yourself by touching an unpainted part of the printer frame before
removing or installing the printhead assembly.
1. Touch an unpainted part of the printer frame before touching the
printhead assembly.
2. Position the new printhead assembly below the pivoting deck and connect
the printhead controller, power supply, and upper media sensor cable
assemblies. (Figure 42.)
NOTE: You may need to gently pull the lower tabs of the retainer clips
upward to install the printhead assembly.
3. Slide the printhead assembly upward into the pivoting deck until the
retainer clips snap it in place. Make sure that the cable assemblies do not
extend past the printhead cover and into the media or ribbon path.
4. Restore the printer to operation (page 224).
Printhead Assembly
251
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Troubleshooting
