The roll is loose on the spindle
The roll may need to be replaced or reloaded.
Recalibrate the paper advance
Accurate paper advance is important to image quality because it is part of controlling the proper placement
of dots on the paper. If the paper is not advanced the proper distance between printhead passes, light or dark
bands appear in the print and image grain may increase.
The printer is calibrated to advance correctly with all the papers appearing in the front panel. When you
select the type of loaded paper, the printer adjusts the rate at which to advance the paper while printing.
However, if you are not satisfied with the default calibration of your paper, you may need to recalibrate the
rate at which the paper advances. See
Troubleshooting print-quality issues on page 129 for steps to
determine if paper advance calibration will solve your issue.
You can check the paper advance calibration status of the currently loaded paper from the front panel at any
time by pressing
, then , then Image-quality maintenance > Calibration Status. The status may
be one of the following.
●
DEFAULT: This status appears when loading any paper that has not been calibrated. HP papers in the
Front Panel have been optimized by default and unless you experience image quality problems in your
printed image such as banding or graininess it is not recommended to recalibrate the paper advance.
●
OK: This status indicates that the loaded paper has been calibrated before. However you may need to
repeat the calibration if you experience image quality problems such as banding or graininess in your
printed image.
NOTE: Whenever you update the printer’s firmware, the paper advance calibration values are reset to
factory default, see
Update the firmware on page 108.
CAUTION: Transparent papers and films must be calibrated by pressing , then , then Image-
quality maintenance > Paper advance calibration > Adjust paper advance, from step four in Recalibrating
the paper advance procedure.
Recalibrating the paper advance procedure
1.
From the front panel, press
, then , then Image-quality maintenance > Paper advance
calibration > Calibrate paper advance. The printer automatically recalibrates the paper advance and
prints a paper advance calibration image.
2. Wait until the front panel displays the status screen and re-print your print.
NOTE: The recalibration procedure takes approximately three minutes. Do not worry about the paper
advance calibration image. The front-panel display shows any errors in the process.
If you are satisfied with your print continue using this calibration for your paper type. If you see
improvement in your print, continue with step three. If you are dissatisfied with the recalibration, return
to the default calibration, see
Return to default calibration on page 128.
3.
If you would like to fine-tune the calibration or are using a transparent paper, press
, then ,
then Image-quality maintenance > Paper advance calibration > Adjust paper advance.
ENWW The roll is loose on the spindle 127
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