HP Designjet T920 ePrinter series - Manual (Page 169)

4. Select the percentage of change from –100% to +100%. To correct light banding, decrease the
percentage.
To correct dark banding, increase the percentage.
5. Press OK on the front panel, to save the value.
6. Wait until the front panel displays the status screen and reprint your print.
Return to default calibration
Returning to the default calibration sets all the corrections made by the paper advance calibration to zero. To
return to the default paper advance calibration value, you must reset the calibration.
1.
From the front panel, press , then , then Image quality maintenance > Paper advance
calibration > Reset paper advance.
2. Wait until the front panel displays the operation has completed successfully.
Horizontal lines across the image (banding)
If your printed image suffers from added horizontal lines as shown (the color may vary):
ENWW Horizontal lines across the image (banding) 161