HP Designjet T7200

If banding does occur in ALL the colors, then it is probably a paper advance problem:
●
If the bands are light, it means that the paper has advanced too much.
●
If the bands are dark, it means that the paper hasn’t advanced enough.
●
In high quality modes, graininess in ALL colors can indicate problems either with alignment or paper
advance.
In order to solve any of these problems, try the following.
1. Check that the appropriate print quality settings are being used.
2. Check that the loaded paper is the same type as selected in the printer. Check this through the front
panel (at the front panel, select the
icon, then View loaded paper > View paper details).
3. If the customer is using low-quality paper, try recommending better-quality paper (preferably HP
paper). Printer performance can only be guaranteed by using recommended papers.
4. Check the advance with the help of the Visual Paper Advanced Diagnostic, refer to
Visual paper advance
plot on page 155.
NOTE: If there is white point banding in only one color band and the problem cannot be fixed using
Printhead recovery, in some cases using the Force Drop Detection option can fix this issue (see Others
Diagnostics: Force Drop Detection).
Lines are too thick, too thin or missing
1. Check that the paper type you have loaded corresponds to the paper type selected in the front panel
and in your software. To check on the front panel, use the View information key
.
2. Check that you are using appropriate print-quality settings for your purposes. Select the custom print-
quality options in the driver dialog, and try turning on the Maximum detail option (if available). You
may wish to reprint your job at this point in case the problem has been solved.
3. If the resolution of your image is greater than the printing resolution, you may notice a loss of line
quality. If you are using the HP-GL/2 and HP RTL driver for Windows, you can find the Max. Application
Resolution option in the driver dialog's Advanced tab, under Document Options > Printer Features. If
you change this option, you may wish to reprint your job at this point in case the problem has been
solved.
4. If lines are too thin or missing, print the Image Diagnostics Print.
5.
If the problem remains, go to the front panel and select the Ink menu icon
, then Printhead
information to see the printhead alignment status. If the status is PENDING, you should align the
printheads. After alignment, you may wish to reprint your job in case the problem has been solved.
6.
Go to the front panel and press the View information key
to see the paper advance calibration
status. If the status is DEFAULT or RECOMMENDED, you should perform paper advance calibration.
158 Chapter 7 Print quality ENWW