HP DesignJet Z2100 24 User Manual

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.Press the Menu key to return to the main menu and select the Image Quality Maintenance menu
icon 
, then Advance > Reset paper advance
2.Wait until the front panel displays the operation has completed successfully before pressing the
Back key to return to the main menu.
ENWW...

122 Chapter 11   Troubleshooting paper issues ENWW
Troubleshooting paper
issues
 

12 Troubleshooting print-quality issues
●General advice
●
Print quality troubleshooting wizard
●
Horizontal lines across the image (banding)
●
Lines are too thick, too thin, or missing
●
Lines appear stepped or jagged
●
Lines print double or in the wrong colors
●
Lines are discontinuous
●
Lines are blurred
●
The whole image is blurry or grainy
●
The paper is not flat
●
The print is scuffed or scratched
●
Ink marks on the paper
●
Edges of objects are stepped or not sharp
●
Edges of objects are darker than...

General advice
When you have any print-quality problem:
●To achieve the best performance from your printer, use only genuine manufacturers supplies and
accessories, whose reliability and performance have been thoroughly tested to give trouble-free
performance and best-quality prints. For details of recommended papers, see 
Order paper
on page 104.
●Make sure that the paper type selected in the front panel is the same as the paper type loaded into
the printer. To check this, use the View loaded paper key...

Alternatively, or if you have other print quality problems, you can continue reading this chapter.
Horizontal lines across the image (banding)
If your printed image suffers from added horizontal lines as shown (the color may vary):
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 loaded paper key.
2.Check that you are using appropriate print-quality settings for your purposes (see...

If the problem persists despite all the above actions, contact your customer service representative for
further support.
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 loaded paper key.
2.Check that you are using appropriate print-quality settings for your purposes (see 
Printing
on page 41). Select the custom print-quality options in the driver...

1.The problem may be inherent in the image. Try to improve the image with the application you are
using to edit it.
2.Check that you are using appropriate print-quality settings. See 
Printing on page 41.
3.Select the custom print-quality options in the driver dialog (Mac OS Print dialog), and turn on the
Maximum detail option.
4.Change your image rendering resolution to 300 dpi or 600 dpi depending on your printing needs.
You can find the Max. Application Resolution option in the Windows driver dialogs...

To correct this kind of problem:
1.Reseat the printheads by removing them and then reinserting them. See 
Remove a printhead
on page 86 and Insert a printhead on page 88.
2.Align the printheads. See 
Align the printheads on page 144.
Lines are discontinuous
If your lines are broken in the following way:
1.Check that you are using appropriate print-quality settings. See Printing on page 41.
2.Reseat the printheads by removing them and then reinserting them. See 
Remove a printhead
on page 86 and Insert a...

5.Select the custom print-quality options in the driver dialog (Mac OS Print dialog), and turn on the
More passes option.
6.Align the printheads. See 
Align the printheads on page 144.
The whole image is blurry or grainy
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 loaded paper key.
2.Check that you are printing on the correct side of the paper.
3.Check that you are using appropriate...

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 loaded paper key.
2.Try changing to a thicker paper type, such as HP Heavyweight Coated Paper, HP Super
Heavyweight Coated Paper, or thicker Digital Fine Art papers.
The print is scuffed or scratched
The black ink pigment can be scuffed or scratched when touched by a finger, a pen, or some other
object. This is particularly noticeable on...