HP DesignJet 4500ps User Manual

							3.Check that the paper type selected in the front panel is the same as the paper type you are
using.
4.Perhaps you have adjusted the drying time at the front panel to speed up the printer output.
Select the 
 icon, then Select drying time, and make sure it is set to Optimal.
5.Allow the prints time to dry separately; do not cover or stack them.
Lines are slightly warped
The paper itself may be warped. This can happen if it has been used or stored in an extreme
environment. See 
Environmental specifications.
Color accuracy
There are two basic requirements for color accuracy:
1.Ensure that your paper type has been calibrated, which will give you consistency from print to
print, and from printer to printer. See 
Perform color calibration.
2.Select suitable options in your application: see 
How do I... (color topics).
NOTEIf you are not using PostScript, remember that your printer may be configured to use
one of its internal pen palettes instead of your softwares palette (which is the default). See
Pen settings seem to have no effect.
Color accuracy using EPS or PDF images in page layout
applications
Page layout applications such as Adobe InDesign and QuarkXPress do not support color
management of EPS, PDF, or grayscale files.
If you have to use such files, try to ensure that the EPS, PDF, or grayscale images are already in the
same color space that you intend to use later on in Adobe InDesign or QuarkXPress. For instance, if
your final goal is to print the job in a press that follows the SWOP standard, at the time of creating
the EPS, PDF or grayscale you should convert the image into SWOP.
PANTONE color accuracy
Spot colors are special premixed inks to be used directly in the press, and the best–known spot
colors are PANTONE colors.
If you have the PostScript model, your printer provides a facility called Automatic PANTONE
Calibration, which can easily match most of the PANTONE Solid Coated spot colors. When an
application sends a PANTONE color to print, it sends the PANTONE name together with its own
estimate of equivalent CMYK values. The Automatic PANTONE Calibration facility recognizes the
PANTONE name and converts it to CMYK in a way that depends on the printer model and the
selected paper type, enabling the color to be rendered with greater precision than is possible with the
generic CMYK values sent by the application.
Even when using Automatic PANTONE Calibration, you cannot expect the printer to match the
PANTONE colors exactly. Your printer is certified by Pantone for some papers, but this does not
mean that it can reproduce 100% of the PANTONE colors.
ENWWLines are slightly warped 267
The problem is... (print
quality topics)
 
						

							Using Automatic PANTONE Calibration (the best choice)
In order to use Automatic PANTONE Calibration, you need an application that recognizes the
PANTONE colors, and a calibrated PostScript printer.
The Automatic PANTONE Calibration facility emulates PANTONE Solid Coated colors only (suffix
C). Other PANTONE colors will be printed using the CMYK values sent by the application.
Converting PANTONE colors manually
If you have a non–PostScript printer, or if you are using an application (such as Adobe Photoshop)
that does not send the name of the PANTONE color to the printer, you will not be able to use
Automatic PANTONE Calibration. Instead, if you wish, you can convert each PANTONE color
manually to CMYK values in the application, using tables produced especially for your printer and
paper type.
If your application has a facility to convert PANTONE colors to CMYK values automatically, it
probably does not take account of printer or paper type, so you will get better results with a manual
conversion using the tables.
You can also obtain a PANTONE calibrated color chart in EPS, TIFF, and PDF format, which can be
convenient if your application has an eyedropper tool with which you can pick up colors from an
imported graphic.
Tips
●Automatic PANTONE Calibration works with PostScript printers only.
●Ensure that Automatic PANTONE Calibration is turned on in the driver.
●Some applications may not support PANTONE colors fully; for example, Photoshop 7.0 does
not send the PANTONE Color with its name, it sends only the CMYK values from its standard
table.
●Some colors may be out of gamut and impossible to match precisely with your printer and paper
type.
Color matching between different HP Designjets
If you print an image on two different printer models (for instance, on an HP Designjet 4000 Printer
series and an HP Designjet 1000 Printer series), you may find that the colors of the two prints do not
match well.
Matching two printing devices that use different ink chemistry, paper chemistry, and printheads is
unlikely to be completely successful. The information provided here is the best way to emulate one
printer with another. Even so, the end result may not be a perfect match.
Printing via separate PostScript drivers
The situation is that you are printing on each printer using the PostScript driver installed for that
printer. In this example, we are using an HP Designjet 4000 Printer series and an HP Designjet 1000
Printer series.
1.Ensure that both printers have been updated to the latest firmware version. See 
Update my
printers firmware.
2.Ensure that you have the latest printer driver for both printers. You can download the latest
versions for any HP printer from 
http://www.hp.com/go/designjet.
268 Chapter 18   The problem is... (print quality topics) ENWW
The problem is... (print
quality topics)
 
						

							3.Ensure that Color Calibration is turned on. At the front panel of the HP Designjet 4000 series,
select the 
 icon, then Printer configuration > Color calibration > On .
4.Load the printers with similar paper types.
5.Ensure that the Paper Type setting on the front panel corresponds to the paper you have loaded.
6.Print your image on the HP Designjet 1000 Printer series using your normal settings.
7.Now prepare to print the same image on the HP Designjet 4000 Printer series.
8.In your application, set the color space of the image to emulate the HP Designjet 1000 Printer
series and the specific paper type that you used in that printer. The data sent to the driver must
be already converted to this emulation color space, which is a CMYK color space. See your
applications online help for information on how to do this. In this way, the 4000 series will
emulate the colors that the 1000 series can produce when printing on that paper type.
9.In the PostScript driver for the HP Designjet 4000 Printer series, go to the Color Management
section and set the CMYK input profile to the same HP Designjet 1000 Printer series color
space that you selected in the application (the emulation color space).
NOTEWhen trying to emulate another printer you should always use CMYK colors, not
RGB.
10.Set the rendering intent to Relative Colorimetric, or to Absolute Colorimetric if you want to
emulate the whiteness of the paper.
11.Print the image on the HP Designjet 4000 Printer series.
Printing via separate HP-GL/2 drivers
The situation is that you are printing on each printer using the HP-GL/2 driver installed for that printer.
1.Ensure that both printers have been updated to the latest firmware version. See 
Update my
printers firmware.
2.Ensure that you have the latest printer driver for both printers. You can download the latest
versions for any HP printer from 
http://www.hp.com/go/designjet.
3.Ensure that Color Calibration is turned on. At the front panel of the HP Designjet 4000 Printer
series, select the 
 icon, then Printer configuration > Color calibration > On .
4.Load the printers with similar paper types.
5.Ensure that the Paper Type setting on the front panel corresponds to the paper you have loaded.
6.With the HP-GL/2 driver for the HP Designjet 4000 Printer series, select the Color tab, and
select Printer Emulation from the list of color management options. Then choose the Designjet
1000 series from the list of emulated printers.
7.With the HP-GL/2 driver for the HP Designjet 1000 series, select the Options tab, then Manual
Color > Color Control > Match Screen. You should also select the Paper Size tab, then Paper
Type.
ENWW Color matching between different HP Designjets 269
The problem is... (print
quality topics)
 
						

							Printing the same HP-GL/2 file
The situation is that you have produced an HP-GL/2 file (also known as a PLT file) using the HP-
GL/2 driver installed for one printer, and you intend to send the same file to both printers.
1.Ensure that both printers have been updated to the latest firmware version. See 
Update my
printers firmware.
2.Ensure that Color Calibration is turned on. At the front panel of the HP Designjet 4000 Printer
series, select the 
 icon, then Printer configuration > Color calibration > On .
3.Load the printers with similar paper types.
4.Ensure that the Paper Type setting on the front panel corresponds to the paper you have loaded.
5.If you have an HP-GL/2 file produced for an HP Designjet 1000 Printer series and you want to
print it on an HP Designjet 4000 Printer series, proceed as follows using the Embedded Web
Server or the front panel.
●Using the Embedded Web Server: leave the color options set to Default.
●
Using the front panel: select the 
 icon, then Default printing options > Color options >
Select RGB input profile > HP Designjet 1000 Series.
For other HP Designjet printers, set both printers to match the screen colors (sRGB if
selectable), as when printing with separate HP-GL/2 drivers.
270 Chapter 18   The problem is... (print quality topics) ENWW
The problem is... (print
quality topics)
 
						

							19 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
ENWW271
The problem is... (image
error topics)
 
						

							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 file, etc. (see 
Change the graphic language
setting). 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
If you are using the HP Designjet 4500 Printer series, any print liable to be clipped will normally be
be put “on hold for paper”, and actual clipping will occur only if there is a software error of some kind.
On the HP Designjet 4000 Printer series, 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 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). 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 Printing defaults menu > 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.
272 Chapter 19   The problem is... (image error topics) ENWW
The problem is... (image
error topics)
 
						

							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 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 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 Advanced tab, then Document options, then Printer features.
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.
The print is a mirror image of the original
At the front panel, select the  icon, then Default printing options > Paper options > Enable
mirror. 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 file etc. (see 
Change the graphic
language setting). 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.
ENWW The image is in one portion of the printing area 273
The problem is... (image
error topics)
 
						

							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 settings > Define palette, but you have forgotten to select that
palette in Default printing options > HP-GL/2 settings > 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 settings > Select palette >
Software.
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. Here
are some recommendations for the use of the HP-GL/2 driver for Windows in these cases.
●In the
Advanced tab, select Document options, Printer features, and set Send Job as Raster to
Enabled.
●In the Advanced tab, select Document options, Printer features, and set 16-bit App.
Compatibility to Enabled.
●In the Advanced tab, select Document options, Printer features, and set Max. Application
resolution to 300.
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 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 Scale to options in the Effects tab
of the Windows HP-GL/2 or PS drivers. If the downscaling in the application and the upscaling in the
driver match, the result will be as originally intended.
274 Chapter 19   The problem is... (image error topics) ENWW
The problem is... (image
error topics)
 
						

							20 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
ENWW275
The problem is... (ink
system topics)
 
						

							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.
CAUTIONNever 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 4500 series, and by the
HP Designjet 4000 series with firmware release 4.1.1.5 or later. If you experience this problem with
an HP Designjet 4000 series printer, try updating the firmware (see 
Update my printers firmware).
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). 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.
276 Chapter 20   The problem is... (ink system topics) ENWW
The problem is... (ink
system topics)