HP DesignJet Z6100 60 User Manual

General advice
Use the following approach when you have any print-quality problem:
●To achieve the best performance from your printe
r, use only genuine HP supplies and accessories,
whose reliability and performance have been thorou ghly tested to give trouble-free performance and
best-quality prints. For details of recommended papers, see 
Order paper on page 49 .
● Make sure that the paper type that you select on 
the front panel is the same as the paper type that
is loaded in the printer. Make su re...

●Poor line quality
● Inaccurate color
To access the Embedded Web Server Print  Quality Troubleshooting wizard, click the Print Quality
Troubleshooting  link on the Support tab. Select the print-quality is sue that you are experiencing and
click the  Next button.
A list of suggestions for corrective action appears  along with help to guide you through the corrective
action.
Lines are too thick, too thin, or missing
1 . Verify that the paper type that you have loaded co
rresponds to the paper type that you...

1. The problem might be inherent in the image. Try 
to improve the image within the software program
that you are using to edit it.
2 . Make sure that you are using appr
opriate print-quality settings. See 
Select print quality
on page 80.
3 . If you are using an HP-GL/2 driver, hange your image-rendering resolution to 300 dpi or 600 dpi,
depending on your printing need. The 
Max. Application Resolution option in the Windows
driver dialogs  Advanced tab, under Document Options  > Printer Features.
Parts...

Lines are printed double or in the wrong colors
This problem can have various visible symptoms:
● Colored lines are printed double, in different colors.
●The borders of colored blocks are the wrong color.
Use these steps to correct this kind of problem:
1
. Align the printheads. See 
Align the printheads on page 71
.
2 . Make sure that you are using appr
opriate print-quality settings. See 
Select print quality
on page 80.
Lines are blurred (ink bleeds from lines)
152 Chapter  11   Troubleshoot...

Humidity can cause ink to soak into the paper, making the lines look blurred and fuzzy. Try the following
remedies:
1 . Make sure that your environmental conditions (tem
perature, humidity) are suitable for high-quality
printing. See 
Environmental specifications on page 191 .
2 . Verify that the paper type that you select on the front panel is the same as the paper type that you
are using. To check, select the 
 icon from the printers fr
ont panel, and then select  View loaded
paper .
3 . Try changing...

4. Check the paper-advance calibration status on the fr
ont panel. If the status is PENDING, you should
perform paper-advance calibration. See 
Perform paper advance calibration on page 46.
5 . Try aligning the printheads. See 
Align the printheads on page 71. After alignment, reprint your job
if the problem has been solved.
If the problem persists, contac t your customer service representative for further support.
The image is grainy
1. Verify that the paper type you have loaded correspon
ds to the...

The printed output is not flat
If the paper does not lie flat when it comes out of the printer, but instead contains shallow waves, you are
likely to see defects in the printed image, such as vertical stripes. This ca n happen when you use thin
paper that becomes saturated with ink.
1 . Make sure that the paper type you 
have loaded corresponds to the pap er type that you select on the
front panel and in your software.
2 . Try changing to a thicker paper type, such as HP 
Heavyweight Coated Paper, HP...

Whenever you notice this problem, cancel the printing job immediately. Press the Cancel button on the
front panel and also cancel the job from your co mputer software. Otherwise the soaked paper might
damage the printheads.
Try the following suggestions to avoid this problem:
● Use a recommended paper type. See 
Supported paper types on page 28.
● If the image you are printing contains intense 
color, try using HP Heavyweight Coated Paper.
● Use extended margins (see 
Adjust margins and layout options on...

Colors are inaccurate
If the colors of your print do not match your expectations, try the following remedies:
1 . Verify that the paper type you have loaded correspon
ds to the paper type that you selected on the
front panel and in your software. At the same time,  check the color-calibration status. If the status is
RECOMMENDED or OBSOLETE, you should perform color calibration. See 
Color calibration
on page 110 . If you have made any changes, reprint  your job if the problem has been solved.
2 . Verify...

Print with PostScript drivers
The situation describes printing with the PostScript driver installed for that printer. In this example, we are
using an HP Designjet Z6100 printer series  and an HP Designjet 5500 printer series.
1 . Verify that both printers have th
e most recent firmware version. See 
Update the printer firmware
on page 141.
2 . Verify that you have the most recent printer driver
 for both printers. Download the latest versions for
any HP printer from 
http://www.hp.com/go/designjet .
3 ....