HP Designjet T1120ps 610 mm User Manual

							You can specify even faster draft-quality printing by using Economode, as follows. This is intended
mainly for documents containing only text and line drawings.
●In the Windows driver dialog: go to the Paper/Quality tab and look at the Print Quality section.
Select Custom Options, then set the quality level to Fast and check the Economode box.
●In the Mac OS Print dialog (T1120): go to the Paper Type/Quality panel and select Paper, then
set the quality options to Custom, set quality to Fast and check the Economode box.
●In the Mac OS Print dialog (T1120ps): go to the Image Quality panel and set the quality options
to Custom, then set quality to Fast, and check the Economode box.
●On the Embedded Web Servers Submit Job page: select Basic settings > Print quality >
Custom. Set Quality level to Fast, and Economode to On.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Print
quality > Enable economode.
NOTE:If the print quality is set from your computer, it overrides the print-quality setting in the front
panel.
High-quality printing
You can specify high-quality printing in the following ways:
●In the Windows driver dialog: go to the Paper/Quality tab and look at the Print Quality section.
Move the print-quality slider to the extreme right (Quality).
●In the Mac OS Print dialog (T1120): go to the Paper Type/Quality panel and select Paper, then
move the print-quality slider to the extreme right (Quality).
●In the Mac OS Print dialog (T1120ps): go to the Image Quality panel and move the print-quality
slider to the extreme right (Quality).
●On the Embedded Web Servers Submit Job page: select Basic settings > Print quality >
Standard options > Quality.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Print
quality > Select quality level > Best.
NOTE:If the print quality is set from your computer, it overrides the print-quality setting in the front
panel.
If you have a high-resolution image
If your image has a resolution greater than the rendering resolution (which you can see in the Custom
Print Quality Options box under Windows), print sharpness may be improved by selecting the Maximum
Detail option. This option is available only if you are printing on glossy paper and you have selected
Best print quality.
●In the driver dialog (Mac OS Print dialog): select Custom instead of Standard print-quality
options, then check the Maximum Detail box.
●On the Embedded Web Servers Submit Job page: select Basic settings > Print quality >
Custom. Set Quality level to Best, and Maximum detail to On.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Print
quality > Enable maximum detail.
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							NOTE:The Maximum Detail option results in slower printing with photo papers, but it does not increase
the amount of ink used.
Print in gray shades
You can convert all colors in your image to shades of gray in the following ways:
●In your application program: many programs provide this option.
●In the Windows driver dialog: go to the Color tab and look at the Color Options section.
Select Print In Grayscale. You can also select Print in Pure black and white if you want only
black and white, without gray shades.
●In the Mac OS Print dialog (T1120): go to the Paper Type/Quality panel and select Color, then
select Print In Grayscale. You can also select Pure Black and White if you want only black and
white, without gray shades.
●In the Mac OS Print dialog (T1120ps): go to the Color Options panel and select Print In
Grayscale. You can also select Pure Black and White if you want only black and white, without
gray shades.
●On the Embedded Web Servers Submit Job page: select Color > Print in Monochrome.
Print with no margins
Printing with no margins (to the edges of the paper) is known as borderless printing. This can be done
only on rolls of glossy paper.
In order to be sure of leaving no margins, the printer prints slightly past the edges of the paper. Any ink
deposited outside the paper is absorbed by the sponge situated in the platen.
You can request printing with no margins in the following ways:
●In the Windows driver dialog: select the Paper/Quality tab and press the Margins/Layout
button. Then select Borderless.
●In the Mac OS Page Setup dialog (T1120): select a paper size name that includes the words “no
margins”. Then, in the Print dialog, select Paper Type/Quality > Layout > Borderless.
●In the Mac OS Page Setup dialog (T1120ps): select a paper size name that includes the words
“no margins”. Then, in the Print dialog, select Finishing > Layout > Borderless.
●On the Embedded Web Servers Submit Job page: select Advanced settings > Paper >
Layout/Margins > Borderless.
When you select Borderless, you must also select one of the following Image Enlargement options:
●Automatically by printer means that the printer automatically enlarges your image slightly
(normally by a few millimeters in each direction) in order to print over the edges of the paper.
●Manually in application means that you must enlarge the image yourself in your application, and
select a custom paper size that is slightly larger than the actual paper size.
NOTE:If the first print job after loading paper is a borderless job, the printer may trim the leading edge
of the paper before printing.
At the end of a borderless print, the printer normally cuts the print slightly inside the image area to ensure
that the print is borderless. It then cuts the paper again so that no residual part of the image is included
in the next print. However, if the job is cancelled, or if there is white space at the bottom of the image,
only a single cut is made.
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							Print with crop lines
Crop lines indicate where the paper should be cut to reduce it to your selected page size. You can print
crop lines with individual jobs in the following ways:
●In the Windows driver dialog: select the Features tab and then Crop lines.
●In the Mac OS Print dialog (T1120): select the Paper Type/Quality panel, then Paper > Crop
lines.
●In the Mac OS Print dialog (T1120ps): select the Finishing panel, then Crop lines.
●On the Embedded Web Servers Submit Job page: select Advanced settings > Roll
options > Enable crop lines > Yes.
Alternatively, you can choose to print crop lines with all jobs by default:
●In the Embedded Web Server: select Setup > Printer settings > Job management > Use crop
lines when printing > On.
●
Using the front panel: select the Setup menu icon 
, then Printing preferences > Paper >
Enable crop lines > On.
To print crop lines with nested jobs (see 
Nest jobs to save roll paper on page 64), you must select a
different option:
●In the Embedded Web Server: select Setup > Printer settings > Job management > Use crop
lines when nest is enabled > On.
●
Using the front panel: select the Setup menu icon 
, then Job management > Nest
options > Enable crop lines > On.
Use paper economically
Here are some recommendations for making economical use of paper:
●If you are printing relatively small images or document pages, you can use nesting to print them
side by side instead of one after another. See 
Nest jobs to save roll paper on page 64.
●You may be able to save some roll paper by using the following options:
◦In the Windows driver dialog: select the Features tab and then Remove top/bottom blank
areas and/or Rotate by 90 degrees.
◦In the Mac OS Print dialog (T1120): select the Paper Type/Quality panel, then Paper,
then Remove Top/Bottom Blank Areas.
◦In the Mac OS Print dialog (T1120ps): select the Finishing panel, then Remove Top/
Bottom Blank Areas and/or Rotate by 90 degrees.
◦On the Embedded Web Servers Submit Job page: select Advanced settings > Roll
options > Remove top/bottom blank areas and/or Rotate.
●If you check the print preview on your computer before printing, you can sometimes avoid wasting
paper on prints containing obvious mistakes. See 
Preview a print on page 61.
Nest jobs to save roll paper
Nesting means automatically printing images or document pages side by side on the paper, rather than
one after the other. This is done to avoid wasting paper.
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							1.Direction of paper flow
2.Nesting off
3.Nesting on
4.Paper saved by nesting
When does the printer try to nest pages?
When both of the following are true:
●The printer is loaded with roll paper, not sheet paper.
●The printers Nest option is not turned off. See 
Turn nesting on and off on page 22.
What pages can be nested?
All pages can be nested, unless they are so large that two of them cannot fit side by side on the roll, or
unless there are too many of them to fit into the remaining length of the roll. A single group of nested
pages cannot be split between two rolls.
Which pages qualify for nesting?
In order to be in the same nest, the individual pages must be compatible in all of the following ways:
●All pages must have the same print quality setting (Economode, Fast, Normal or Best).
●The Maximum Detail setting must be the same on all pages.
●The Layout/Margins setting must be the same for all pages.
●The Mirror Image setting must be the same for all pages.
●The Rendering Intent must be the same for all pages.
●The Cutter setting must be the same for all pages.
●The color adjustment settings must be the same for all pages. See 
Color adjustment options
on page 71.
●Pages must be all color, or all grayscale: not some in color and some in grayscale.
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							●All pages must be in one or other of the following two groups (the two groups cannot be mixed in
the same nest):
◦HP-GL/2, RTL, CALS/G4
◦PostScript, PDF, TIFF, JPEG
●JPEG, TIFF and CALS/G4 pages with resolutions greater than 300 dpi may not nest with other
pages in some cases.
How long does the printer wait for another file?
So that the printer can make the best nest possible, it waits after a file has been received to check
whether a subsequent page will nest with it or with pages already in the queue. This waiting period is
the nest wait time; the factory default nest wait time is two minutes. This means that the printer waits
for up to two minutes after the last file is received before printing the final nest. You can change this
waiting time from the printers front panel: select the Setup menu icon 
, then Job management
options > Nest options > Select wait time. The available range is 1 to 99 minutes.
While the printer is waiting for nesting to time out, it displays the remaining time on the front panel. You
can print the nest (cancel the nest wait) by pressing the Form feed and cut key.
Use ink economically
Here are some recommendations for making economical use of ink.
●For draft prints, use plain paper and move the print-quality slider to the left end of the scale
(Speed). For further economy, select custom print quality options, then select Fast and
Economode.
●Clean the printheads only when needed, and clean only those printheads that need cleaning.
Cleaning the printheads can be useful, but it uses a small amount of ink.
●Leave the printer permanently turned on so that it can maintain the printheads in good condition
automatically. This regular printhead maintenance uses a small amount of ink. However, if it is not
done, the printer may need to use much more ink later to restore the health of the printheads.
●Wide prints make more efficient use of ink than narrow prints, because printhead maintenance
uses some ink, and its frequency is related to the number of passes made by the printheads.
Therefore, nesting jobs can save ink as well as saving paper (see 
Nest jobs to save roll paper
on page 64).
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							7 Color management
●Introduction
●
How colors are represented
●
A summary of the color management process
●
Color calibration
●
Color management from printer drivers
●
Color management from printer drivers (T1120ps only)
●
Color management from the Embedded Web Server
●
Color management from the front panel
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							Introduction
HP Designjet T1120 printers have been engineered with advanced hardware and software features to
ensure predictable and dependable results.
●Color calibration for consistent colors.
●One gray and two black inks provide neutral grays on all paper types.
●The Photo Black ink provides pure blacks when printing on photo papers.
●Color emulation of other HP Designjet printers.
How colors are represented
All devices that display color use a color model to represent color in numerical terms. Most monitors
use the RGB (Red-Green-Blue) color model, while most printers use the CMYK (Cyan-Magenta-Yellow-
blacK) color model.
An image can be converted from one color model to another, but in general the conversion is not perfect.
Your printer uses the RGB color model: the same color model that is used by your monitor.
This simplifies but does not completely solve the problem of matching colors. Each device represents
colors a little differently from another device, even if they use the same color model. However, software
can adjust the colors in an image according to the characteristics of the particular device, using a color
profile of the device, in order to achieve correct colors.
A summary of the color management process
To get the accurate and consistent colors that you want, you should follow these steps for each paper
type that you use.
1.Color-calibrate the paper type, for consistent colors. Calibration should be repeated every now and
then (see 
Color calibration on page 68). In addition, you may wish to calibrate immediately before
a particularly important print job for which color consistency is vital.
2.When printing, select the correct color profile for the paper type you are using.
Color calibration
Color calibration enables your printer to produce consistent colors with the particular printheads, inks
and paper type that you are using, and under your particular environmental conditions. After color
calibration, you can expect to get similar prints from any two different printers situated in different
geographical locations.
Some paper types cannot be calibrated. For all other paper types, calibration should be done in any of
the following circumstances:
●Whenever a printhead is replaced
●Whenever a new paper type is introduced that has not yet been calibrated with the current set of
printheads
●Whenever the environmental conditions (temperature and humidity) change significantly
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							You can check the color calibration status of the currently loaded paper at any time by pressing the
View loaded paper key on the front panel. The status may be one of the following:
●PENDING: the paper has not been calibrated.
NOTE:Whenever you update the printers firmware, the color calibration status of all papers is
reset to PENDING.
●OBSOLETE: the paper has been calibrated, but the calibration is now out of date because a
printhead has been replaced, and should be repeated.
●DONE: the paper has been calibrated, and the calibration is up to date.
●DISABLED: this paper cannot be calibrated.
NOTE:Color calibration cannot be performed on plain paper, nor on any kind of transparent
material.
You can also check the color calibration status by using the HP Printer Utility.
You can start color calibration in the following ways:
●From the printer alert that recommends calibration.
●From the HP Color Center: select Calibrate Your Printer.
●
From the front panel: select the Image Quality Maintenance menu icon 
, then Calibrate
color.
The calibration process is fully automatic and can be performed unattended after you have loaded paper
of the type you wish to calibrate— which should be A3 or any larger size.
The process takes about 3–5 minutes and consists of the following steps.
1.A calibration chart is printed, which contains patches of each ink used in your printer.
2.The chart is allowed to dry for a period of time that depends on the paper type, so that the colors
have time to stabilize.
3.The chart is scanned and measured.
4.From the measurements, the printer calculates the necessary correction factors to apply for
consistent color printing on that paper type. It also calculates the maximum amount of each ink
that can be applied to the paper.
Color management from printer drivers
These facilities are available for the HP Designjet T1120 and T1120ps printers.
Color management options
The aim of color management is to reproduce colors as accurately as possible on all devices: so that,
when you print an image, you see very similar colors as when you view the same image on your monitor.
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							There are two basic approaches to color management for your printer:
●Application-Managed Colors: in this case your application program must convert the colors of
your image to the color space of your printer and paper type, using the ICC profile embedded in
the image and the ICC profile of your printer and paper type.
●Printer-Managed Colors: in this case your application program sends your image to the printer
without any color conversion, and the printer converts the colors to its own color space. The details
of this process depend on the graphics language that you are using.
◦PostScript: the PostScript interpreter module inside the printer performs the color conversion
using the profiles stored in the printer and any additional profiles sent with the PostScript job.
This kind of color management is done when you are using the PostScript driver and you
specify printer color management or when you send a PostScript, PDF, TIFF or JPEG file
directly to the printer through the Embedded Web Server. In either case you have to select
the profiles to use as default (in case the job doesnt specify any) and the rendering intent to
apply.
◦Non-PostScript (PCL, RTL, HP-GL/2): the color management is done using a set of stored
color tables. ICC profiles are not used. This method is somewhat less versatile than the
previous methods, but is a little simpler and faster, and can produce good results with standard
HP paper types. This kind of color management is done when you are using a non-PostScript
driver and you specify printer color management, or when you send a PCL, RTL or HP-GL/2
file directly to the printer through the Embedded Web Server.
NOTE:There are only two color spaces that the printer can convert to its own color space
using the stored color tables: Adobe RGB and sRGB if you are using Windows, Adobe RGB
and ColorSync if you are using Mac OS.
ColorSync is the Mac OS built-in Color Management System; so, in fact, when selecting
ColorSync it is the built-in color management part of Mac OS that is performing the color
management, and it is done based on the ICC profiles of specified paper type. ColorSync is
available with the PCL driver only.
You are recommended to consult the Knowledge Center at http://www.hp.com/go/T1120/
knowledgecenter to see how to use the color management options of your particular application.
To choose between Application-Managed Colors and Printer-Managed Colors:
●In the Windows driver dialog: select the Color tab.
●In the Mac OS Print dialog (T1120): select the Paper Type/Quality panel, then Color.
●In the Mac OS Print dialog (T1120ps): select the Color Options panel.
●In some applications: you can make this choice in the application.
Printer emulation
If you want to print a particular job and to see approximately the same colors that you would get from
printing the same job on a different HP Designjet printer, you can use the emulation mode provided by
your printer.
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							NOTE:This option is available only when printing an HP-GL/2, PostScript or PDF job. It will work
correctly only when printing on plain, coated or heavyweight coated paper.
●In the Windows HP-GL/2 or PostScript driver dialog: select the Color tab, then Printer
Managed Colors, then select Printer Emulation from the Source Profile list. You can then select
from the Emulated Printer list.
●In the Mac OS Print dialog (T1120): select the Paper Type/Quality panel, then Color > Printer
Managed Colors > Emulated Printer.
●In the Mac OS Print dialog (T1120ps): select the Color Options panel, then Basic > Printer
Emulation.
Color adjustment options
The aim of color management is to print accurate colors. If you perform color management correctly,
then you should be able to print accurate colors with no need of any manual color adjustments.
However, manual adjustments may be useful in the following situations:
●If your color management is not working correctly for some reason
●If you want colors that are subjectively pleasing rather than accurate
The printer driver provides different adjustment facilities depending on whether you are printing in color
or in grayscale. If you are printing in pure black and white, there are no color adjustment options.
Printing in color
You can adjust the colors of your print in similar ways under Windows and Mac OS:
●In the Windows driver dialog: select the Color tab, ensure that the Advanced Color
Adjustments box is checked, then press the Settings button beside it.
●In the Mac OS Print dialog (T1120): select the Paper Type/Quality panel, then Lightness and
Hue.
●In the Mac OS Print dialog (T1120ps): select the Color Options panel, then Lightness and
Hue.
Under either operating system, you will then be able to make adjustments using a lightness slider and
three color sliders.
●The lightness slider simply makes the whole print lighter or darker.
●The color sliders can be used to fade or emphasize each of the primary colors in the print. The
primary colors may be red, green and blue; or cyan, magenta and yellow; depending on the color
model used in the image.
The Reset button restores each slider to its default central position.
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