HP Designjet 4520ps 42 in User Manual

							●The gray neutrality patterns tend to change with time (mainly during the first day), so, before
selecting the right gray pattern, consider waiting a day to get the perfect gray neutrality.
●For advanced users (specific configuration): HP-GL/2 and HP RTL using the CMYK contone path
will not be affected by this calibration.
Important note about using the stacker: Remove the stacker if it is connected while printing the
patterns. If the stacker is installed when printing the calibration sheets for gray neutrality, seven different
sheets will be printed and each of them will be 42 cm long and at least 50% of the paper will not be
printed, this is because the minimum length per plot that can be printed through the stacker is 42 cm.
How to remove the stacker:
1.Disconnect the stacker from the front of the printer.
2.Uninstall the stacker: select the 
 icon on the printers front panel, then Accessories > Stacker
> Uninstall stacker.
3.Once you have printed the patterns, reconnect the stacker, and install the stacker through the front
panel, the front panel will automatically ask you to reinstall (again, less than a ten second
operation).
Options
The Windows and Mac OS drivers provide a preset facility that enables you to skip steps 6 and 7 in the
visual gray calibration procedure (do not enable the visual gray calibration from the front panel) and
store the CMYK settings as a ‘Quick Set’, Printing Shortcut’ or ‘Preset’ within the driver.
Quick Sets/Printing Shortcuts under Windows
1.Go to Printing Preferences (in the driver).
2.Select the Color tab.
3.Select Advanced Color Settings (HP-GL/2 and HP RTL driver) or Advanced color
adjustments (PostScript driver).
4.Enter the CMYK values in the color sliders and press OK.
5.Select the Paper/Quality tab.
6.Enter the Print Quality settings used in the front panel while printing the gray patterns (steps 1 to
5 of the Visual gray calibration procedure).
7.In the HP-GL/2 and HP RTL driver, enter a name in the text box Print Task Quick Sets and
press Save. The new Quick Set is then stored for future use.
In the PostScript driver, select the Printing Shortcuts tab, press Save As and enter a name. The
new Printing Shortcut is then stored for future use.
Whenever a new print is required with the selected gray neutrality settings, follow these steps:
1.Go to Printing Preferences (in the driver).
2.In the HP-GL/2 and HP RTL driver, select the stored Quick Set and press OK.
In the PostScript driver, select the Printing Shortcuts tab, then the stored shortcut, and press OK.
3.Press OK.
ENWWImproving gray neutrality 161
Print quality problems
 
						

							Presets under Mac OS
1.Open the printing dialog.
2.Select the Color Options panel.
3.Press Show Advanced Options.
4.Select the CMYK Settings tab.
5.Enter the CMYK values in the color sliders.
6.Select the Image Quality panel.
7.Enter the Print Quality settings used in the front panel while printing the gray patterns (steps 1 to
5 of the Visual gray calibration procedure).
8.Save these settings as presets on the drop-down list.
Whenever a new print is required with the selected gray neutrality settings, follow these steps:
1.Open the printing dialog.
2.Select the stored preset from the Presets drop-down list.
162 Chapter 15   The problem is... (print quality topics) ENWW
Print quality problems
 
						

							16 The problem is... (image error topics)
●The print is completely blank
●
The output contains only a partial print
●
The image is clipped
●
The image is in one portion of the printing area
●
The image is unexpectedly rotated
●
The print is a mirror image of the original
●
The print is distorted or unintelligible
●
One image overlays another on the same sheet
●
Pen settings seem to have no effect
●
Some objects are missing from the printed image
●
A PDF file is clipped or objects are missing
●
No output when printing from Microsoft Visio 2003
ENWW163
Image errors
 
						

							The print is completely blank
If the front-panel graphic language setting is Automatic (the default), try the other settings:
PostScript for a PostScript file, HP-GL/2 for an HP-GL/2 and HP RTL file, etc. (see 
Change the graphic
language setting on page 65). Then send the file again.
When you have finished this particular print, remember to reset the graphic language to Automatic.
The output contains only a partial print
●Did you press Cancel before all the data were received by the printer? If so, you have ended the
data transmission and will have to print the page again.
●The I/O timeout setting may be too short. From the front panel, you can increase the I/O
timeout setting to a longer period and then send the print again. Select the 
 icon, then I/O
setup > Select I/O timeout.
●There may be a communications problem between your computer and the printer. Check your
interface cable.
●Check to make sure that your software settings are correct for your current page size (e.g. long-
axis prints).
●If you are using network software, make sure it has not timed out.
The image is clipped
Clipping normally indicates a discrepancy between the actual printable area on the loaded paper and
the printable area as understood by your software.
●Check the actual printable area for the paper size you have loaded.
printable area = paper size – margins
The Windows HP-GL/2 and HP RTL driver displays the printable area in the Paper/Quality tab.
●Check what your software understands to be the printable area (which it may call printing area
or imageable area). For example, some software applications assume standard printable areas
that are larger than those used in this printer.
●If your image contains its own margins, you may be able to print it successfully by telling the printer
not to add margins to it (see 
Print without added margins on page 60). In this case:
printable area = paper size
●If you are trying to print a very long image on a roll, check that your software is capable of printing
an image of that size.
●Check that the orientation of the paper is the same as that assumed by your software. The front-
panel Default printing options > Paper options > Rotate option changes both the orientation of
a print and the orientation of the page. It is possible that a rotated image on a roll may be slightly
clipped in order to retain the correct page size.
●You may have asked to rotate the page from portrait to landscape on a paper size that is not wide
enough.
●If necessary, change the printable area in your software.
There is another possible explanation for a clipped image. Some applications, such as Adobe
Photoshop, Adobe Illustrator and CorelDRAW, use an internal 16-bit coordinate system which means
that they cannot handle an image of more than 32,768 pixels. If you try to print an image larger than this
164 Chapter 16   The problem is... (image error topics) ENWW
Image errors
 
						

							from these applications, the bottom of the image will be clipped. In this case, the only way to print the
whole image is to reduce the resolution so that the whole image requires fewer than 32,768 pixels. The
HP-GL/2 and HP RTL printer driver contains an option called Compatibility with 16-bit applications,
which can be used to reduce the resolution of such images automatically. You can find this option by
selecting the drivers Services tab, then the Troubleshoot Software Problems icon.
The image is in one portion of the printing area
●Have you selected too small a page size in your application?
●Does your application think that the image is in one portion of the page?
The image is unexpectedly rotated
At the front panel, select the  icon, then Default printing options > Paper options > Rotate. Check
that the setting is what you wanted.
For non-PostScript files: if Nesting is On, pages may be automatically rotated to save paper. See 
Rotate
an image on page 62.
The print is a mirror image of the original
At the front panel, select the  icon, then Default printing options > Paper options > Enable mirror
image. Check that the setting is what you wanted.
The print is distorted or unintelligible
●The interface cable connecting your printer to your network (or to your computer) could be faulty.
Try another cable.
●If the front-panel graphic language setting is Automatic (the default), try the other settings:
PostScript for a PostScript file, HP-GL/2 for an HP-GL/2 and HP RTL file etc. (see 
Change the
graphic language setting on page 65). Then send the file again.
●Depending on the software, drivers and RIPs you are using with your printer, there will be different
ways of solving this problem. Refer to the vendors user documentation for details.
One image overlays another on the same sheet
The I/O timeout setting may be too long. From the front panel, decrease the setting and print again.
Select the 
 icon, then I/O setup > Select I/O timeout.
Pen settings seem to have no effect
Here are some possible explanations:
●You have changed the settings in the front panel by selecting the 
 icon followed by Default
printing options > HP-GL/2 options > Define palette, but you have forgotten to select that palette
in Default printing options > HP-GL/2 options > Select palette.
●If you want the software-driven pen settings, you must remember to go to the front panel and select
the 
 icon followed by Default printing options > HP-GL/2 options > Select palette >
Software.
ENWW The image is in one portion of the printing area 165
Image errors
 
						

							Some objects are missing from the printed image
Large quantities of data may be necessary to print a high-quality large-format print job, and in some
specific workflows there may be issues that can lead to some objects missing from the output. If you
are using the HP-GL/2 and HP RTL driver for Windows, try selecting the Troubleshoot Software
Problems icon in the Services tab, and turning on all troubleshooting options: Compatibility with 16-
bit applications, Send Job as a Bitmap, and Enable SpoolSmart.
The above settings are mentioned for troubleshooting purposes and may adversely affect the final output
quality or the time necessary to generate the print job. Therefore, they should be restored to their default
values if they do not help to solve the problem.
A PDF file is clipped or objects are missing
In older versions of Adobe Acrobat or Adobe Reader, large PDF files could be clipped or lose some
objects when printing with the HP-GL/2 and HP RTL driver at high resolution. In order to avoid such
problems, please upgrade your Adobe Acrobat or Adobe Reader software to the latest version. From
version 7 onwards, these problems should be solved.
No output when printing from Microsoft Visio 2003
For more information about problems when printing large images (more than 129 inches long) from
Microsoft Visio 2003, see Microsofts online knowledge base (
http://support.microsoft.com/search/).
To avoid these problems, it is possible to scale the image down in Visio to a size shorter than 129 inches
and then to scale the drawing up in the driver by using the Resizing Options in the Effects tab of the
Windows HP-GL/2 and HP RTL or PostScript drivers. If the downscaling in the application and the
upscaling in the driver match, the result will be as originally intended.
166 Chapter 16   The problem is... (image error topics) ENWW
Image errors
 
						

							17 The problem is... (ink system topics)
●I cannot insert an ink cartridge
●
The printer will not accept a large black ink cartridge
●
I cannot remove an ink cartridge
●
I cannot insert a printhead
●
I cannot insert a printhead cleaner
●
The front panel keeps telling me to reseat or replace a printhead
●
An ink cartridge status message
●
A printhead status message
●
A printhead cleaner status message
ENWW167
Ink system problems
 
						

							I cannot insert an ink cartridge
1.Check that you have the correct type of cartridge (model number).
2.Check that the colored label on the cartridge is the same color as the label on the slot.
3.Check that the cartridge is correctly oriented, with the colored label at the top.
CAUTION:Never clean inside the ink cartridge slots.
The printer will not accept a large black ink cartridge
Black ink cartridges of 775 cm³ capacity are supported by the HP Designet 4520 series, and by the HP
Designjet 4020 series with firmware release 4.1.1.5 or later. If you experience this problem with an HP
Designjet 4020 series printer, try updating the firmware (see 
Update my printers firmware
on page 116).
I cannot remove an ink cartridge
In order to remove an ink cartridge, you should first select Remove ink cartridges at the front panel
(see 
Remove an ink cartridge on page 88). If you try to remove the cartridge without using the front
panel, the cartridge may get stuck, and the front panel will display an error message.
To recover from this situation, press on the cartridge itself (not on the drawer or the blue tab) to push it
back into place. The error message should then disappear (it will disappear after a short time even if
you have not corrected the problem), and you can then restart the process in the correct way by
selecting Remove ink cartridges.
I cannot insert a printhead
1.Check that you have the correct type of printhead (model number).
2.Check that you have removed the blue protective cap and the clear protective tape from the
printhead.
3.Check that the colored label on the printhead is the same color as the label on the slot.
4.Check that the printhead is correctly oriented (compare with the others).
5.Check that you have closed and latched the printhead cover.
I cannot insert a printhead cleaner
1.Check that you have the correct type of cleaner (model number).
2.Check that the colored label on the cleaner is the same color as the label on the slot.
3.Check that the cleaner is correctly oriented (compare with the others).
The front panel keeps telling me to reseat or replace a
printhead
1.Remove the printhead and check that its protective film has been removed.
2.Try cleaning the electrical connections between the printhead and the carriage. See 
Clean a
printheads electrical connections on page 97.
168 Chapter 17   The problem is... (ink system topics) ENWW
Ink system problems
 
						

							3.Reinsert the printhead into the carriage and check the front panel message.
4.If the problem remains, try a new printhead.
An ink cartridge status message
These are the possible ink cartridge status messages:
●OK: the cartridge is working normally, with no known problems
●Missing: there is no cartridge present, or it is not properly connected to the printer
●Low: the ink level is low
●Very low: the ink level is very low
●Empty: the cartridge is empty
●Reseat: you are recommended to remove the cartridge and then reinsert it
●Replace: you are recommended to remove the cartridge and then reinsert it; if that fails, replace
the cartridge with a new cartridge
●Altered: there is something unexpected about the cartridges status—perhaps it has been refilled
A printhead status message
These are the possible printhead status messages:
●OK: the printhead is working normally, with no known problems
●Missing: there is no printhead present, or it is not properly installed in the printer
●Reseat: you are recommended to start the printhead removal process from the front panel (see
Remove a printhead on page 92), but instead of removing the printhead, just press the Select key
on the front panel
●Replace: you are recommended to remove the printhead and then reinsert it; if that fails, clean the
electrical connections; if that fails, replace the printhead with a new printhead
●Remove: the printhead is not a suitable type for use in printing (for instance, a setup printhead)
A printhead cleaner status message
These are the possible printhead cleaner status messages:
●OK: the cleaner is working normally, with no known problems
●Missing: there is no cleaner present, or it is not properly installed in the printer
●Reseat cleaner: you are recommended to remove the cleaner and then reinsert it
●Wrong stall: the cleaner has been installed in the wrong place
●End of life: the cleaner has reached the end of its planned lifetime
●Not replaced with printhead: you have installed a new printhead without installing the new cleaner
that came with it
If a printhead cleaner needs to be removed or reseated, you must start the printhead replacement
process (see 
Remove a printhead on page 92). Open the window when prompted to do so by the front
ENWW An ink cartridge status message 169
Ink system problems
 
						

							panel. If the front panel shows the printheads with no printhead blinking, you do not need to touch the
printheads. Just close the window again, and the printer will proceed to printhead cleaner replacement.
170 Chapter 17   The problem is... (ink system topics) ENWW
Ink system problems