HP Designjet T790 HP Designjet T790 and T1300 ePrinter: User's Guide - English - Page 163

General advice, Print quality troubleshooting wizard, From the HP Utility for Mac OS

Page 163 highlights

Print-quality issues General advice When you have any print-quality problem: ● To achieve the best performance from your printer, use only genuine manufacturer's 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 131. ● Make sure that the paper type selected in the front panel is the same as the paper type loaded into the printer (see View information about the paper on page 43). At the same time, check that the paper type has been calibrated. Also make sure that the paper type selected in your software is the same as the paper type loaded into the printer. CAUTION: If you have the wrong paper type selected, you could experience poor print quality and incorrect colors, and perhaps even damage to the printheads. ● Check that you are using the most appropriate print-quality settings for your purposes (see Printing on page 49). You are likely to see lower print quality if you have moved the print-quality slider to the 'Speed' end of the scale, or set the custom quality level to Fast. ● Check that your environmental conditions (temperature, humidity) are in the recommended range. See Environmental specifications on page 197. ● Check that your ink cartridges and printheads have not passed their expiration dates: see Maintain the ink cartridges on page 126. Print quality troubleshooting wizard The Print Quality Troubleshooting Wizard can help with the following problems: ● Horizontal lines across the image (banding) ● The whole image is blurry or grainy ● Lines are too thick, too thin or missing ● Colors are inaccurate To start the wizard: ● From the HP Utility for Windows: go to the Support tab, and select Print quality troubleshooting. ● From the HP Utility for Mac OS: select Print quality troubleshooting in the Support group. ● From the Mac OS Print dialog: go to the Services panel, select Device Maintenance, then select Print quality troubleshooting from the list of maintenance tasks. ● From the Embedded Web Server: go to the Support tab, select Troubleshooting, then select Print quality troubleshooting. ENWW General advice 155

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General advice
When you have any print-quality problem:
To achieve the best performance from your printer, use only genuine manufacturer's 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
131
.
Make sure that the paper type selected in the front panel is the same as the paper type loaded
into the printer (see
View information about the paper
on page
43
). At the same time, check that
the paper type has been calibrated. Also make sure that the paper type selected in your software
is the same as the paper type loaded into the printer.
CAUTION:
If you have the wrong paper type selected, you could experience poor print quality
and incorrect colors, and perhaps even damage to the printheads.
Check that you are using the most appropriate print-quality settings for your purposes (see
Printing
on page
49
). You are likely to see lower print quality if you have moved the print-quality slider to
the 'Speed' end of the scale, or set the custom quality level to
Fast
.
Check that your environmental conditions (temperature, humidity) are in the recommended range.
See
Environmental specifications
on page
197
.
Check that your ink cartridges and printheads have not passed their expiration dates: see
Maintain the ink cartridges
on page
126
.
Print quality troubleshooting wizard
The Print Quality Troubleshooting Wizard can help with the following problems:
Horizontal lines across the image (banding)
The whole image is blurry or grainy
Lines are too thick, too thin or missing
Colors are inaccurate
To start the wizard:
From the HP Utility for Windows:
go to the
Support
tab, and select
Print quality
troubleshooting
.
From the HP Utility for Mac OS:
select
Print quality troubleshooting
in the Support
group.
From the Mac OS Print dialog:
go to the
Services
panel, select
Device Maintenance
,
then select
Print quality troubleshooting
from the list of maintenance tasks.
From the Embedded Web Server:
go to the
Support
tab, select
Troubleshooting
, then
select
Print quality troubleshooting
.
ENWW
General advice
155
Print-quality issues