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Printing to the Geology Plotter
(HP DesignJet 800 PS: PAS-800-PS or PAS-800-GL2)
Last updated: 07/31/02 by
System Administrator
Plotter Specific Information:
| How to create a Poster |
| PC Specific options |
| Mac Specific options |
| Why won't my poster print? |
| How to export/convert files to .gif or .jpg |
| Image (File) types
(.gif, .jpg, Postscript etc...) |
| Confirming the Poster is ready to print |
General Printing Information:
| Printing overview |
| PC Printing |
| Mac Printing |
| Useful computer resources |
| Non-plotter printer errors |
(this page works much better on-line than printed)
For Best Results in Creating a Poster
(tips and suggestions welcomed, please report errors to
System Administrator)
- If you are printing from a MAC, you MUST switch the print job to
ASCII, if you do not, the plotter will roll out an entire roll of paper
onto the floor.
If this happens, the person (or the CUFS number) to which the job was
printed will be charged for the entire price of the roll (~$30).
There are step-by-step instructions on
how to avoid this.
- The new plotter can take either 36 inch wide paper, or 42 inch wide.
The length of the poster can be any length, as the paper comes on a roll.
- The price for a poster is $1/square foot
Therefore, if you are charging it to your personal account, check to make
sure your balance is great enough to take the job first. Posters usually
cost somewhere around $15-$20 dollars. See the
To Check your Personal Account Balance
In Windows section for information on how to do that.
- Use Illustrator 8 or higher for best results.
Some people also use PowerPoint. That works OK, but not great, and when
something goes wrong, its much harder to troubleshoot.
Some people create PDFs and then try to print those.
Some have had very good luck with this method, some have had very bad luck.
If you try it, just be aware that it might not work, and it might be messy.
Some have tried creating EPS files from other applications
(like CorelDraw) and importing them into Illustrator. Again, sometimes
it works, sometimes it doesn't.
By far the best supported method of creating a poster is to use Illustrator
from the start.
- Use one consistant image type. The reason for this
is that some image types are postscript and some are not, and combining them
can really confuse the printer. I recommend using .gif (for graphics) or .jpg
(for photographs) files.
There are some details on
Converting files further down in this document.
GraphicConverter on the Mac is a great way to do it. Use the
"Convert" tool under the "File" menu.
- The printer can print to 600dpi, but images should be set much lower.
This is because such high resolution makes the files huge, and take a longer
time to print, and 150dpi looks nearly as good.
Set up your images in Photoshop, size them to the exact size you'd like
them on the poster, and make them ~150dpi. Then save them as .jpg or .gif,
and import them into your poster.
- Avoid the symbol font. Instead, create little ° symbols
out of a little letter O and then size it to be a degree symbol. Use
similar tricks for other symbols. The symbol font just really doesn't
work on the plotter. Often, they simply don't print, and leave little
spaces.
- Print when the System Administrator is around. Many, many things
can go wrong when printing a poster. It's much more complicated than
printing to a laser printer. When the SysAdmin is around, they can trouble-shoot the problem much better. Check the list of things under
Confirming your poster is ready to print.
- It's important to know the difference between the
Artboard and the Pagesize. The ArtBoard is the area
in which you are creating your poster, and is represented by the
dark,solid black line on your screen:
The Pagesize is represented by the innner dotted black line:
If these don't match, it's because the "Document Setup" conflicts
with the "Page Setup", and your poster can print out incorrectly:
More information on setting the "Document Setup" and the
"Page Setup" is below.
You can move the Pagegize by using the "Page Tool:"
Choosing the Page Tool, and then clicking in your work area allows
you to move the Pagesize box around. Note, you're dragging it from
the Lower Left Hand Corner. Play with it a bit. Some printer drivers
leave room for margins, some don't. If there are two dotted lines, match
the outer line with the Solid Black Artboard line. If there's only one
dotted pagesize line, match it to the Artboard.
You can also do a search on Illustrator Help for "Artboard"
for more information.
Keep this in mind through the next section.
PC Specific Options
- Check to see if you have the printer drivers installed.
Go to the File Menu, and choose "Print Setup", and you'll get
this dialog:
- Choose the Name: dialog, and see if you have PAS-800-PS and
PAS-800-GL2 listed:
If you do not, you do not have the correct printer drivers installed on
your machine. Don't worry about it, you can still create your poster.
Go to the section of this webpage about setting up your poster
without printer drivers.
If you would like to download the drivers, they are available on the
Public drive.
Directions
(http://www.geo.umn.edu/computer/file_server.html)
for accessing the file server
are available and the PC drivers are located
here: Public:\printer_drivers\Win\800PS\HPGL2Ras\En\
.
Only do this if you know what you are doing with installing print drivers.
Note: this will NOT allow you to print to the plotter, it will just let
you set up your page sizes.
If you have the drivers, continue here.
- Close the Print dialog box, go back to the File menu, and choose
"Document Setup":
Confirm that "Use Page Setup" and "Single Full Page"
are turned on. Otherwise, you'll get something that looks like this:
If the "Use Page Setup" is not set:
or
If the "Single Full Page" isn't set:
- Then click on "Print Setup" on the right hand side of the
dialog:
- Choose the PAS-800-GL2. This driver works much more frequently
than the PS-800-PS. If for some reason, the PAS-800-GL2 won't allow
you to print, there are instructions below on how to use the PAS-800-PS
driver (not written yet).
- Choose whether you want your poster to be Portrait or Landscape.
- Choose your papersize:
If your size isn't there (and its likely that it won't be) you'll have to
set it specifically. Go into "Properties:"
and you'll get this screen:
Make sure you have the correct Roll width (36 or 42 inches)
selected, and then choose the "Size" list:
Scroll all the way down to the bottom and choose
"Edit Paper List".
You'll get this dialog:
Set your pagesize, being careful to get the correct length and width.
Check the little icons.
- Hit "OK" until you're back to your Poster.
It should look something like this:
(if you can't see this image very well, RIGHT click on the image
and a menu should pop up. Select "View Image" and the
image will appear in it's own window at the correct resolution.)
If the Pagesize and the Artboard don't match, reset the pagesize.
Directions were near the top.
Lastly, let the System Administrator take a look before you print, to
make sure everything is set correctly. Confirm
everything is correct. Then hit "Print".
Detailed instructions on how to use the printing system are
available at
http://www.geo.umn.edu/computer/printing_pc.html
Mac Specific Options
- Check to see if you have the printer drivers installed.
Go to the File Menu, and choose "Print Setup", and you'll get
this dialog:
Click on "Format For" and see if you have
PAS-800-PS as an option.
If you do not, you do not have the correct printer drivers installed on
your machine. Don't worry about it, you can still create your poster.
Go to the section of this webpage about setting up your poster
without printer drivers.
If you would like to download the drivers, they are available on the
Public drive.
Directions
(http://www.geo.umn.edu/computer/file_server.html)
for accessing the file server
are available and the Mac drivers are located
here: Public:\printer_drivers\OS8-9\'HP DesignJet 800 PS3'
Place this fine in your "Printer Descriptions" folder
(search for the folder) and then you can set up the printer through the Chooser.
Only do this if you know what you are doing with installing print drivers.
Note: this will NOT allow you to print to the plotter, it will just let
you set up your page sizes.
If you have the driver, continue here.
- Close the Print dialog box, go back to the File menu, and choose
"Document Setup":
Confirm that "Use Page Setup" and "Single Full Page"
are turned on.
Otherwise, you'll get something that looks like this:
If the "Use Page Setup" is not set:
or
If the "Single Full Page" isn't set:
- Then click on "Page Setup":
and you'll get this (yes, we've seen this before):
- Choose the PAS-800-PS as your printer:
- And choose your paper size:
- If your page size isn't there, click on "
Page Attributes" and choose "Custom Page Sizes":
You'll get this dialog:
Click on "New", and you'll get this:
Set your page size (remember, "Width" is the width of
the paper roll, either 36" or 42".
It's not necessary really to set margins, but you can if you want. The
plotter can generally print to about 1" to the edge of the page.
Name your configuration (something like 42x108).
- Hit "OK" until you're back to your Poster.
It should look something like this:
(if you can't see this image very well, click and hold on the image
and a menu should pop up. Select "Open this image" and the
image will appear in it's own window.)
If the Pagesize and the Artboard don't match, reset the pagesize.
Directions were near the top.
Lastly, let the System Administrator take a look before you print, to
make sure everything is set correctly. Confirm
everything is correct. Then hit "Print".
Detailed instructions on how to use the printing system are
available at
http://www.geo.umn.edu/computer/printing_mac.html
1) Adobe Photoshop objects
By far the biggest problem when printing to the plotter is that
there is an image or object in your poster which the plotter cannot accept.
These are usually postscript files created in
Adobe Photoshop and then placed or imported into Illustrator.
This is not nearly the problem now with the new 800-PS plotter as it was
with the old 755CM plotter, but it can still cause problems.
Avoid creating objects in Photoshop and importing them straight into
Illustrator.
Photoshop files are natively postscript files.
Quite often it is these postscript objects that are crashing the print jobs.
Instead of saving the objects as Photoshop files,
export or convert them as a .gif or .jpg.
This method is much more reliable, and will save you hours of headaches.
1A) You've used Gradients or Patterns in your poster.
Gradients especially cause problems. They require a significant amount
of memory to do the calculations to get a proper gradient, and the plotter
is not good at all at doing those. Try to avoid using them.

(a gradient)
Patterns probably aren't as bad as gradients, but still use them with care.
And if you have problems with your print, try removing these first.

(a pattern)
If you must have gradients and patterns, try creating the objects with them,
and then converting that object to a
.gif or .jpg. and re-importing the resulting
image into your poster.
2) The machine on which you are printing doesn't have enough memory.
Try moving to one of the newest machines (as of Summer '02, these are the black
PCs and the blue macs.)
During Poster Printing Season these are prioritized for PosterMaking,
except during a class. Feel free to kick
anyone off who is using them for non-poster making.
Reboot the machine, and log in properly, before trying to print.
Rebooting will clear the memory from any previous print jobs, and will solve
many problems, including
the "Illustration Can't Print" error.
3) There is too much Network Traffic
This problem most often occurs when people are trying to print from
either outside of Pillsbury Hall, or sometimes from within Pillsbury
but outside of Rm. 206.
There is very little that can be done about this problem, as it's due to
the network traffic on campus, over which I have no control.
Try printing from the Lab.
4) You're using the Incorrect Printer Driver (PCs only)
This is a tough one to diagnose. Basically, if you've
converted all of your images to .gif or .jpg files, and you're still
getting wierd errors, try switching to a different printer
driver. (From PAS-800-GL2 to PAS-800-PS or vice verse. The PAS-206-Plotter
is no longer valid.)
When starting to use a new printer driver, do the following:
5) The printers are Off-Line or you didn't log in correctly.
See PAS Printing Errors, Printers offline
webpage for more information on this.
6) There is an object in your file that the printer can't accept.
Quite often, a poster file will get an object in it that the printer can't
accept. This object is often invisible. Or it can be a weird setting that
got set in the file that isn't immediately obvious. The easiest way to fix
this is to create a new Illustrator file. Set up the page
size first before adding anything to this new file. Then, copy object by
object (or a few objects at a time) all of the stuff from your old, corrupt
poster. Do not use the SELECT ALL option in
Illustrator, as that will select the object creating the problem as well.
Save this new poster under a new name, and try printing it. This
will solve all sorts of other problems as well.
7) Your file is too big
Your file is too big. The printer only has 160meg of RAM. And the process
of printing the poster creates a file at least twice as big as your
file size. So an 80meg file would easily max out the RAM on the plotter.
So while it can handle files that are larger, if anything at all goes wrong,
the print job will crash. There are many ways to reduce the size of your poster.
- Reduce the resolution of your images.
Regardless of what images you are using, the highest resolution that the
plotter will print is 600x600 dpi (dots per inch), so scanning your images
at a higher resolution won't accomplish anything other than increasing the
size of your poster.
Reducing the image to 150dpi, or even 72dpi, produces good quality images,
and will save you big headaches, because posters which are too big often
won't print.
(NOTE: higher resolutions are often useful for other applications, so if
you already have those, reduce the resolution on the
version of the image you want to use for your poster.)
Reduce the resolution in Photoshop (but remember to save as a
.gif or .jpg).
- Remove any background image or patterns you have that cover the
entire poster.
- Reduce the thickness of lines in your poster.
- Remove any filled objects that you don't need, or just remove the
fill itself.
- Link your images into Illustrator rather than placing
them.
This has it's advantages and disadvantages. What this does is it creates a
link to your file on the hard drive, instead of embedding the file into
the poster file. This saves a signficant amount of room, memory wise. However,
if you don't take your files with you when you move computers, you'll lose
the images when you try to open your file on another machine. So you have
to store the poster and the
image files together, and you can't rename or move your images without
also making that
change in Illustrator. See the SysAdmin for details on this.
File size and Memory Usage
There is no direct relationship between file size on your computer and
memory used in the printer to print that file. In fact, because of file
compression (and general complexity)
it is often impossible to estimate how much memory will be used. In general,
thicker lines
(>0.5mm), complex objects (such as polylines) and fills will all use
significantly more memory.
This also means that size of the largest file you can store in the
printer's queue is not the same
as thing as the amount of memory installed in your printer.
Two tips for PostScript users with file-size problems:
- (obsolete, I'll try to find the equiv. for the new plotter): Try reducing the page size in your software and then scale the print
in the printer's front panel.
See page 4.13 of the HP DesignJet User Manual
(pdf file).
- Try reducing the resolution of any bit-map objects in your file, for
example photographs.
That's what the manual says. It seems more in line with CAD stuff, but the
advice is still good.
8) Other...
Even after all of the objects within a poster have been converted to a
usable format, occassionally errors still come up on the plotter.
These errors appear on the plotter status window itself,
you won't see the error sitting at the computer.
The most common error is this:
(This is specific to the old plotter, needs to be updated for the new
PAS-800-PS.)
"Out of Memory/Data was lost"
This error can be either due to the Postscript problem,
or simply your poster is too big.
This is what the HP manual says about it:
"If an "Out of Memory/Data was Lost" Message is Displayed:
The current file is too large for the printer's memory."
Check out the suggestions under There is an object in your file
that the printer can't accept, or see System Administrator for more help.
Exporting (or converting) files to .gif or .jpg
To convert one type of image to another:
In Illustrator
- Open the image in question
- Choose "Save As..." or "Save a Copy..." or "Export..." from under the
File Menu:
(which you choose depends on the version of Illustrator that you are using.
Check them all for what you need).
In Photoshop
- Open the image in question
- Choose "Save As..." or "Save a Copy..." under the File Menu.
(which you choose depends on the version of Illustrator that you are using.
Check them all for what you need).
- If it's not there, try "Export":
On a Mac, you also have the option of converting an image with
GraphicConverter. I don't use this much, but if a tutorial is needed,
I'd be happy to create one. You can convert a bunch of images at once
using the "Convert" option under the "File Menu"
Confirming that your poster is ready to print:
If you want to make sure that all of the objects within Illustrator are
.gif or .jpg format, here's an easy way to do that.
(this works in Illustrator 8.0 and above only)
- Go to the Window menu, and choose "Show Links:"
- That will bring up this window (which is in the same box as
"Layers")
- When you slowly double-click on your images, the name will be
highlighted in this box.
- Be on the lookout for small additions like lab logos. You
may have converted all of your thin-section slides to .gifs or .jpgs,
but a missed logo or graphic can mess up the whole print.
Image (File) Formats:
I get a lot of questions about image file formats and which are the best to use. Before going on, note that extensions (the three letter bit
that comes after the period) are not generally used on Macintoshes, but are in Windows and Unix systems. So it may not be
immediately obvious on a Mac what type of image you have.
The following information is garnered from:
http://www.learnthenet.com/english/html/34filext.htm (text in red) and
http://www.simplythebest.net/info/imagefm.html (text in blue)
Text in black represents comments by me.
Bitmaps
Windows Bitmap (.bmp)
“The Windows Bitmap file format is the standard file format used by Microsoft Windows.
Bitmap files can contain either 2 (black and white), 16, 256 or 16.7 million colors.
Most Windows Bitmap files are not compressed. It is possible to save 16 and 256
color images in a compressed format (See Run-Length Encoded below) but some
applications (notably Windows Paintbrush) are not able to read the compressed files.
The default file extension for Windows Bitmap files is “.BMP”. Occasionally you
may see bitmap files with the extension “.DIB”.”
Bitmaps are stored by pixel. The best way to edit them in Windows is to use the program Paint.exe.
I don’t recommend using them at all for posters, I only find them useful for inserting (occassionaly) into MSWord
documents. However, I use .jpgs for that now.
GIF
“CompuServe Graphics Interchange Format (.gif)
The GIF file format was developed by CompuServe Inc. for use on their on-line service.
GIF files are color-mapped files that can have anywhere from 2 to 256 colors.
Most applications support both the 87a and 89a versions of the GIF standard.
GIF files are always compressed and offer an efficient way to store large images.
The default file extension for CompuServe Graphics Interchange Format files is “.GIF”.”
“The most common graphics file format on the Internet, it stands for Graphics Interchange Format.
File Type: Binary.
If your browser does not have a built-in GIF viewer, then you can use Lview Pro
(lviewpxx.zip) or PolyView (polyvxxx.zip) to view these graphics on a Windows PC.
On the Mac, a shareware utility called GIF Converter can be used to view and modify GIFs.”
This is by far the most useful format, as far as I can determine. It is very efficient at compression, without a loss of quality.
It is also universally recognized by all graphics programs. This is also the format used to make simple animations on the
web, when quicktime&tm; isn’t necessary.
JPEG
JPEG
“The JPEG format uses a method of compression that reduces image file size by selectively reducing the amount of detail
contained in the image and by transforming the image data into a format that is better suited for compression. Images with
fewer details compress extremely well, while pictures with a high degree of random detail do not compress as well, or
suffer some degree of image degradation. The relative amount of detail removed can be specified in most applications. At
the default value of 75, relatively little picture degradation will take place, but a significant amount of compression will be
obtained. At lower values you will experience still better compression, but with a marked loss of image quality. JPEG
images are either true color or grayscale (256 shades of gray). The default file extension for JPEG files is “.JPG”.
“.jpg/jpeg/jfif
A popular compression standard used for photos and still images.
File Type: Binary.
JPEG files can be viewed on any platform as long as you have a JPEG viewer.
For the Mac, use JPEGView; for the PC, you can use Lview Pro or PolyView.”
I like jpegs too. They’re not as nice as .gifs, and for many applications the compression will degrade the quality. However,
this is the standard for photographs on the internet because the “lossy” compression works better for many photographs. I
have seen these work in places where gifs won’t, because sometimes the color is better preserved.
TIFF
TIFF
“The TIFF format was developed by Microsoft and Aldus Corporations as a portable method of storing bitmap images.
TIFF files come in monochrome, 16-color, 256-color, 16-color grayscale, 256-color grayscale and true color (24-bit)
varieties. TIFF files exist in both compressed and uncompressed formats. The compression format offers a high degree of
compression. However, certain older paint programs that use an early version of the TIFF format may have difficulty
reading compressed TIFF files. If you find that a program will not read the compressed files, try saving the file in the
uncompressed format. The default file extension for TIFF files is “.TIF”.”
“.tiff
A very large, high-resolution image format.
File Type: Binary.
Use JPEGView for the Mac and Lview Pro or PolyView for the PC.”
POSTSCRIPT
This data comes from:
Tech Encyclopedia / Postscript
"A page description language (PDL) from Adobe that is used extensively on all
computer platforms. It is the de facto standard in commercial typesetting and
printing houses. Most all accept and may even require PostScript files as
electronic input.
PostScript commands do not drive the printer directly. They are language
statements in ASCII text that are translated into the printer's machine language
by a PostScript interpreter built into the printer. Fonts are scaled to size by the
interpreter, thus eliminating the need to store a variety of font sizes on disk.
PostScript Level 2, downward compatible with original PostScript, adds data
compression and enhancements, especially for color printing. Level 3 adds
more enhancements and native fonts and the ability to directly support more
formats, including HTML, PDF, GIF and JPEG.
Encapsulated PostScript (EPS) is a subset of PostScript used to exchange a
single graphic image in the PostScript format. See EPS and Adobe Type
Manager."
(the page continues on, so please refer to the link above for more information.)
Despite what it says above, the plotter is not fond at all of postscript. I'm unsure why,
but the drivers
mentioned above may fix this.Many applications such as Adobe Photoshop and
Illustrator use Postscript as their native file format. It may be that these applications
don't use postscript quite correctly, and that is why the plotter crashes out. I don't know.
by Karen Swanberg, any questions should be directed to geology@umn.edu
All Adobe products are copyrighted etc., and no slight is meant at Photoshop. I fully recognize that this is a driver or hardware
problem, not a problem with Adobe Photoshop.
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