Chapter 3 — Troubleshooting and Maintaining the Printer
PF8d and PF8t Desktop Printer User’s Guide 59
If you are using Gap sensing or Continuous stock, this sensor MUST
be in the default, far-right position, or “Out of Paper”, “Media not
Loaded”, or other media fault errors may continually occur.
To locate and adjust the black mark/label stop sensor
1 Open the top of the printer.
2 Lift the printhead.
The black mark sensor is near the front of the printer, behind the
roller, in a groove that runs from the left side to the middle of the
printer. The sensor optics are visible as a small slit on the left, and
there is a ridged finger-notch to the right.
3 If the sensor is not all the way to the right, put your fingertip in
the ridged finger-notch and slide the sensor all the way to the
right. Do not touch the sensor itself, because natural finger oils
may dirty the optics.
4 Lower the printhead, close the printer, and try printing again.
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