HP Designjet T7100 User Manual

3.Open the printer window and apply a few drops of
 the oil to the pads on either side of the
carriage.
4. Apply a few drops of oil directly to the slider rod on either side of the carriage.
5.Close the printer window.
Maintain the ink cartridges
During the normal lifetime of a cartridge, no spec
ific maintenance is required. However, in order to
maintain the best print quality, you should replace a cartridge when it has reached its expiration date,
which is the manufacturing date marked  on the...

The benefits of arranging a service engineers visit when these messa ges appear on the front panel are
two-fold:
● The printer components can be replaced at a time
 that is convenient for you, and so will not
disturb your daily workflow.
● When the service engineer performs a preventive
 maintenance visit, replaces several parts at
once. This eliminates the need for repeat visits.
Move or store the printer
If you need to move your printer or  store it for an extended period of time, prepare it correctly...

Follow the onscreen instructions to download the firmware file and store it on your hard disk. Then
select the downloaded file and click  Update.
The firmware includes a set of the most commonl y used paper presets. Extra paper presets can be
downloaded separately; see 
Download paper presets on page 37 .
If you experience very slow progress while uploading the firmware file to the printer, the reason could
be that you are using a proxy server. In that case , try bypassing the proxy server and accessing...

14 Accessories
Order accessories
The following accessories can be ordered for your printer.
NameProduct number
HP Designjet T7100 Roll Upgrade CQ743A
HP Designjet T7100 Stacker 220 V CQ742A
HP Designjet T7100 Stacker 110 V CQ742B
HP Designjet HD Scanner CQ654A
HP Designjet External Hard Disk CN501A
HP Jetdirect 635n IPv6/IPsec Print Server J7961A
HP Designjet PostScript/PDF Upgrade Kit CQ745A
Serif Poster Designer for HP CN088A
SCP Reprocontrol for HP (1 printer) CN454A
SCP Reprocontrol for HP (2...

15 Troubleshoot print-quality issues
●General advice
●
Troubleshooting tools
●
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
●
Line lengths are inaccurate
●
The whole image is blurry or grainy
●
The paper is not flat
●
The print is scuffed or scratched
●
Ink marks on the paper
●
Black ink comes off when you touch the print
●
Vertical lines of different colors
●
White spots on the print
●...

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 thor oughly tested to give trouble-free performance
and best-quality prints. For deta ils of recommended papers, see 
Order paper on page 39.
● 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...

NOTE:This option can also be selected from the front panel. From the main menu, select , then
Optimize print quality .
Optimization suggested actions
This option suggests a series of recommended action s to improve print quality, based on the results of
internal checks. These actions may include reseatin g a printhead, changing paper to run a specific
calibration, cleaning  some printer component, etc. Exec ute them in the proposed order.
TIP:Use this option if you want to save time by acti ng directly...

Options > Printer Features . If you change this option, you ma y 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. See 
The Image Diagnostics Print
on page 61.
5. If the problem remains, go to the fron t panel and select the Ink menu icon 
, then Printhead
information  to see the printhead alignment status. If th e status is PENDING, you should align the
printheads. See 
Align the printheads on page 59 ....

●The borders of colored blocks are wrongly colored.
To correct this kind of problem:
1.Reseat the printheads by removing 
them and then reinserting them. See 
Remove a printhead
on page 51 and Insert a printhead on page 54.
2. Align the printheads. See 
Align the printheads on page 59
.
Lines are discontinuous
If your lines are broken in the following way:
1. Check that you are using appropriate print-quality settings. See Print options on page 77.
2. Reseat the printheads by removing 
them and then...

Humidity can cause ink to soak into the paper, making the lines blurred and fuzzy. Try the following:
1. Check that your environmental conditions (tempe
rature, humidity) are suitable for high-quality
printing. See 
Environmental specifications on page 203 .
2. Check that the paper type selected in the front pa
nel is the same as the paper type you are using.
To check on the front panel, use the  View information key 
.
3. Try changing to a heavier paper type, such as
 HP Heavyweight Coated Paper or HP...