NovaJet 800 Series Training Guide
15
5.
Final Calibration Check - Deadband Calibration
To activate the Deadband calibration select
Utility Menu - Service Menu - Calibration
Menu - Deadband.
The deadband pattern will print very quickly in all color ranges. This
is a final check of printer calibrations to ensure alignment has been achieved. Ensure the
vertical lines are straight with respect to each color, if severely out of alignment, as in this
example, then a re-calibration of the printer is necessary or cleaning of the encoder strip
is necessary. Note: The pattern does not have to be perfect, just close to maintaining
vertical alignments.
6. Controlling
Media
Skew
(not
image
skew)
The
NovaJet 800
series of printers are designed with self-aligning pinch rollers. The
alignment process takes place when media is advancing forward, but not backwards.
Loading media is critical to the media alignment and reducing skew. Many times the
media is loaded at a slight skew and will take several feet of advancing media to get it
aligned properly. This can be improved by following the steps below.
1. Load the media and align the rear media guides.
2. Advance the media though the printer about 1 foot, using the Feed Media Menu/Forward
button.
3. Put the printer media feed in “Sheet” mode (Set-up Menu/Paper Option Menu/Supply
Type/Sheet). Using the media “Forward” button, drive the media forward until it is pulled tight.
4. Change the media feed back to “Roll” or “Take-up” (Set-up Menu/Paper Option Menu/Supply
Type/
5. Roll
or
Take-up).
6. Advance the media forward three feet to check alignment with the white media guideline.
7. Start printing the image.
