HP DesignJet 4500ps User Manual

							25 Tell me about... (printer topics)
●Color emulation modes
●
Connecting the printer
●
The printers rear lights
●
The printers internal prints
●
Preventive maintenance
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							Color emulation modes
Your printer can emulate the color behavior of other devices: RGB devices such as monitors, and
CMYK devices such as presses and printers. See 
Select the color emulation mode.
If you have problems making your printer emulate another HP Designjet printer, see
Color matching
between different HP Designjets.
For a good emulation, the printer needs a specification of the colors these devices can reproduce.
The standard way of encapsulating such information is in ICC profiles. As part of the solution, we
provide the most common standards for the different devices. Apart from selecting the appropriate
ICC profile, you should select the appropriate rendering intent depending on the type of print:
business presentation, photography, or proof. See 
Set the rendering intent. For reference information
on the broader aspects of color printing refer to: 
http://www.hp.com/hpinfo/community/environment/
productinfo/psis_inkjet.htm
The options are as follows.
NOTEPDF and PostScript files can be used with PostScript printers only.
CMYK color emulation
All CMYK emulation options apply to PDF, PostScript, TIFF, and JPEG files only.
●None (Native): no emulation, for use when the color conversion is done by the application or
operating system, and therefore the data arrive at the printer already color–managed.
●HP CMYK Plus: a set of HP proprietary re-rendering rules that will produce a good result for
most digital commercial printing jobs, by expanding the reduced gamut of your press into the
wider gamut of your printer.
●U.S. Sheetfed Coated 2 uses specifications designed to produce quality separations using U.S.
inks under the following printing conditions: 350% total area of ink coverage, negative plate,
bright white offset stock
●U.S. Sheetfed Uncoated 2 uses specifications designed to produce quality separations using
U.S. inks under the following printing conditions: 260% total area of ink coverage, negative
plate, uncoated white offset stock
●U.S. Web Coated (SWOP) 2 uses specifications designed to produce quality separations using
U.S. inks under the following printing conditions: 300% total area of ink coverage, negative
plate, coated publication-grade stock
●U.S. Web Uncoated 2 uses specifications designed to produce quality separations using U.S.
inks under the following printing conditions: 260% total area of ink coverage, negative plate,
uncoated white offset stock
●Euroscale Coated 2 uses specifications designed to produce quality separations using
Euroscale inks under the following printing conditions: 350% total area of ink coverage, positive
plate, bright white coated stock
●Euroscale Uncoated 2 uses specifications designed to produce quality separations using
Euroscale inks under the following printing conditions: 260% total area of ink coverage, positive
plate, uncoated white offset stock
●JMPA: Japanese standard for offset press
●Photoshop 4 Default CMYK
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							●Photoshop 5 Default CMYK
●Other HP Designjet printers can be emulated
In the front panel and the Embedded Web Server, some further options are available:
●Japan Color 2001 Coated uses the Japan Color 2001 specification for type 3 (coated) paper. It
is designed to produce quality separations using 350% total ink coverage, positive film, and
coated paper
●Japan Color 2001 Uncoated uses the Japan Color 2001 specification for type 4 (uncoated)
paper. It is designed to produce quality separations using 310% total ink coverage, positive film,
and uncoated paper
●Japan Web Coated (Ad) uses specifications developed by the Japan Magazine Publisher
Association for digital proofing of images in the Japanese magazine/advertising market
●Toyo is designed to produce quality separations for Toyo printing presses
●DIC is designed to produce quality separations for Dainippon Ink Company printing presses
NOTEThese options have no effect if the application is defining its own CMYK space,
known as calibrated CMYK or CIEBasedDEFG in PostScript terminology.
RGB color emulation
These options apply to PDF, PostScript, TIFF, and JPEG files. For HP-GL/2 and RTL files, only
sRGB and AdobeRGB are supported.
If you want to print an RGB image, it must be converted to CMYK data (although you may be able to
do it in the application or operating system). To perform this conversion, your printer is provided with
the following color profiles:
●None (Native): no emulation. The printer will use its default internal conversion from RGB to
CMYK, without following any color standard. This does not imply that results will be bad.
●sRGB IEC61966-2.1 emulates the characteristics of the average PC monitor. This standard
space is endorsed by many hardware and software manufacturers, and is becoming the default
color space for many scanners, printers, and software applications.
●ColorMatch RGB emulates the native color space of Radius Pressview monitors. This space
provides a smaller gamut alternative to Adobe RGB (1998) for print production work.
●Apple RGB emulates the characteristics of the average Apple monitor, and is used by a variety
of desktop publishing applications. Use this space for files that you plan to display on Apple
monitors, or for working with old desktop publishing files.
●Adobe RGB (1998) provides a fairly large gamut of RGB colors. Use this space if you need to
do print production work with a broad range of colors.
Connecting the printer
Your printer comes with a 100base-TX network interface (Fast Ethernet) for network connections,
and a FireWire interface for direct connection to your computer.
A USB 2.0 interface, 1000base-T (Gigabit Ethernet) network interface, or Jetdirect print server may
be installed as optional accessories.
If you are not sure which interface to use, see 
Choose which connection method to use.
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							To find the sockets for these interfaces on your printer, see Connect the printer (4000 series) or
Connect and switch on the printer (4500 series).
To set up your operating system to use the printer, see one of the following:
●
Connect to a network (Windows)
●
Connect to a network (Mac OS X)
●
Connect to a network (Mac OS 9) [4000]
●
Connect directly to a computer (Windows)
●
Connect directly to a computer (Mac OS X)
●
Connect directly to a computer (Mac OS 9) [4000]
The printers rear lights
At the rear of the printer, above the power switch, are three small lights:
●The amber light on the left is on when the printer is in sleep mode.
●The blue light in the center is on when the printer is on (when it has electrical power).
●The green light on the right is on when the printer is printing.
NOTEYou should never see all three lights on at the same time, because the printer cannot
print in sleep mode.
The printers internal prints
The internal prints give various kinds of information about your printer. They can be requested from
the front panel without using a computer.
Before requesting any internal print, make sure that paper is loaded (roll or sheet), and that the front
panel displays the Ready message. The paper should be at least 36 in (91.44 cm) wide, otherwise
the print may be clipped (HP Designjet 4000 series) or put “on hold for paper” (HP Designjet 4500
series).
To print any internal print, select the 
 icon, then Internal prints, then select whichever internal
print you want.
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							The following internal prints are available:
●Demo: shows some of the capabilities of the printer.
●Menu map: shows details of all the front panel menus.
●Configuration: shows all the current front panel settings.
●Usage report: shows estimates of the total number of prints, number of prints by paper type,
number of prints by print quality option, and total amount of ink used per color. The accuracy of
these estimates is not guaranteed.
●HP-GL/2 palette: shows the color or grayscale definitions in the currently-selected color palette.
●PostScript font list: lists the PostScript fonts installed in the printer (PostScript printers only).
●Image diagnostics: helps you to solve print quality problems. See 
How do I... (Image
Diagnostics Print topics).
●Service information: provides information needed by service engineers.
Preventive maintenance
During the life of your printer, components that are used constantly can wear out with time and use.
To avoid these components being so worn that the printer breaks down, the printer keeps track of the
number of cycles the printer carriage makes across the axis of the printer and on the total quantity of
ink printed.
The printer uses this number to advise you of the need for preventive maintenance, displaying one of
the following messages on the front panel:
●Maintenance #1 required
●Maintenance #2 required
These messages mean that some components are nearing the end of their lives. You can continue
printing for quite some time, depending on your use of the printer. However it is strongly
recommended that you contact your customer service representative and arrange for a preventive
maintenance on-site visit. The service engineer can then replace the worn parts, which will prolong
the life of the printer for a further period.
The benefits of arranging a service engineers visit when the front panel displays these messages
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 he will replace several parts
at once. This will avoid the need for repeat visits.
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							26 Tell me about... (ink system topics)
●Ink cartridges
●
Printheads
●
Printhead cleaners
●
Ink system tips
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							Ink cartridges
The printers four ink cartridges provide yellow, magenta, black, and cyan ink to the printheads. The
color cartridges supplied with the printer have a capacity of 225 cm³, and the black cartridge has a
capacity of 400 cm³. It is also possible to buy and use color cartridges with a capacity of 400 cm³ and
black cartridges with a capacity of 775 cm³.
NOTEThe 225 cm³ and 400 cm³ cartridges are physically the same size: only the internal
capacity varies. The 775 cm³ black cartridge is longer.
Ink cartridges require no maintenance or cleaning. As long as each ink cartridge is inserted correctly
into its slot, the ink will flow to the printheads. Because the printheads control the amount of ink
transferred to the page, you will continue to see high-quality printing results even when the ink levels
are getting low.
Replacing ink cartridges
You can highlight the  icon at any time to check the ink levels of all the ink cartridges (as illustrated
below).
The front panel warns you when a cartridges ink level is low. When a cartridge is empty, the printer
stops printing and the front panel explains why:
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							You are recommended to replace the empty cartridge with a new HP cartridge: see Remove an ink
cartridge and Insert an ink cartridge.
Although it is possible to use refilled or non-HP ink cartridges, either choice has several serious
disadvantages:
●There is some risk of damaging the printer. In this case the printer warranty will not be valid for
any printer repairs that are related to the cartridge, nor for any problems due to ink
contamination.
●You will invalidate the warranty of all printheads of the same color used in the printer
subsequently, unless and until the whole ink system (including ink tubes) is replaced.
●Print quality may be impaired.
●The printer will be unable to estimate the ink level in the cartridge, and will report it as empty.
If you decide to use refilled or non-HP ink cartridges, you will need to follow these instructions to
make the printer use a cartridge that it believes to be empty.
1.Install the cartridge in the printer (see 
Insert an ink cartridge).
2.The front panel will complain that the cartridge is empty, and the cartridge removal process will
start. Press the Cancel key to stop this automatic process.
3.
At the front panel, select the 
 icon.
4.Highlight Replace ink cartridges, but do not select it.
5.Press the Cancel key and the Up key at the same time, and hold them down for at least two
seconds.
6.The front panel will display a series of warning messages. In response to each message, press
the Cancel key to cancel the process, or the Select key to confirm that you wish to continue.
When you have pressed Select in response to all warning messages, the front panel will give the
usual ink cartridge status display, but the refilled or non-HP cartridge will be shown as empty with a
warning sign.
Printheads
In order to increase printing speed, two printheads are connected to each ink cartridge, giving eight
printheads in total.
The printheads are extremely durable and do not need to be replaced every time an ink cartridge is
replaced. They will continue giving excellent results even if the ink cartridges are low in ink.
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							To maintain optimum print quality, the printheads are automatically tested at regular intervals, and
automatically serviced if necessary. This takes a little time and will occasionally delay printing.
When a printhead eventually needs to be replaced, the front panel will tell you so.
CAUTIONWhenever you buy a new printhead, you get a new printhead cleaner with it.
When you replace a printhead, always replace the printhead cleaner at the same time.
Leaving the old printhead cleaner in the printer will shorten the new printheads life and
possibly damage the printer.
Printhead cleaners
Each printhead has its own printhead cleaner, so there are eight printhead cleaners in the printer.
Printhead cleaners are used to clean and maintain the printheads, to ensure the best possible print
quality, and to seal the printheads when they are not in use to prevent them from drying out.
CAUTIONWhenever you buy a new printhead, you get a new printhead cleaner with it.
When you replace a printhead, always replace the printhead cleaner at the same time.
Leaving the old printhead cleaner in the printer will shorten the new printheads life and
possibly damage the printer.
NOTEIn some circumstances, the printer may ask you to replace a printhead cleaner even
though the corresponding printhead is not due for replacement. This is done in order to
maintain the printers image quality and reliability.
Ink system tips
For best results, always follow these guidelines:
●Install the ink cartridges, printheads, and printhead cleaners before the install-by date, which is
printed on the packaging.
●Install a new printhead cleaner every time you install a new printhead.
●Follow the instructions on the front panel during installation.
●Allow the printer and printhead cleaners to clean the printheads automatically.
●Avoid unnecessary removal of the ink cartridges and printheads.
●The ink cartridges should never be removed while the printer is printing. They should be
removed only when the printer is ready for you to replace them. The front panel will guide you
through the removal and installation procedures (or see 
Remove an ink cartridge and Insert an
ink cartridge).
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