Printers and Printer Problems
How To Print
There are four publicly available black-and-white laser printers: ps2
in the computer room, ps12 in the reading room, ps8 in D0.02, and ps5
in D0.21. There are also
three colour laser printers: ps10 in the photocopier room, ps_trans
(single-sided) in D0.21, and ps7 in the computer room. To print a
file to ps2 from a Linux machine, type ``lpr -Pps2 filename''.
N.B. This will only work with text or Postscript files. To print any
other type of file, open it up in the application you use to view it on
screen, and choose the ``Print'' option from the menu. You may be asked
for a complete print command (such as ``lpr -Pps2'') or for a printer
name (such as ``ps2'').
Printing from most Windows applications is straightforward, but
remember to make sure that the correct printer is selected. If it
isn't available, go to Start -> All Programs -> Maths Faculty
Extra Programs -> Add Pavilion Printers, and make sure that your
pavilion and room number are set correctly before clicking Install.
You also need to be a little careful when printing from GSView.
Select Windows GDI Printer, click on ``Settings'' and ensure that
``Full Colour'' is selected.
If you need to print colour transparencies, you are advised to use the
single-sided colour laser printer ps_trans in D0.21. Ask Julia or
John for suitable transparencies, as if you use the wrong kind, they
will melt in the printer. Simply put the transparencies in the normal
paper tray, and ps_trans will automatically detect them and print
using the correct amount of ink. Do not attempt this
with any of the other laser printers! You can also use the inkjet
printer attached to the Windows PC outside my office, but remember to
click on "Properties" before printing to ensure that it is set up for
These are some of the messages which can appear on a laser printer's display,
what they mean and what (if anything) you need to do about them. Many
of our printers can clarify their error
messages themselves - they tell you this by displaying ``For help press ?'' on
their screens. As a general rule, the printer will flash the orange
maintenance light if it needs attention.
- The printer is ready to print.
- The printer is paused. Press the Stop key to switch it back to
- SLEEP MODE ON
- The printer has gone into an energy-saving mode.
- WARMING UP
- The printer is starting up again after going into energy-saving
mode. If you wait it should print out your job.
- The printer is busy printing or thinking about a print job.
- LOAD TRAY X
- The printer is out of paper. Refill its tray. If this does not
work, someone may have been fiddling with the control panel options,
and you should email me if you are unsure how to fix this.
- JAM IN LOCATION
- There is paper stuck inside the printer. Open the printer cover and
carefully remove the paper jam. You may have to open the back of the
printer or remove the tray or the toner cartridge.
- ORDER COLOUR CARTRIDGE
- The printer is running low on ink of the specified colour. No
action is required, as printing can continue until the ink runs out.
- REPLACE COLOUR CARTRIDGE
- The printer has run out of ink of the specified colour. Email me
and I will change the cartridge.
If you print a long document and it doesn't come out,
don't just send
it again. If it was just delayed or sent to the wrong printer, you'll
eventually get multiple copies of it, which is a waste of paper. If it
was actually stuck, all those extra jobs will be clogging up the print
queues and may make it impossible for other people to print.
The first thing to do is to check whether it went to the right
printer. By default, all print jobs will go to ps2 if you do not
specify a printer. You can change the default printer to ps10 by
including the line "export PRINTER=ps10" in your .bashrc file. Some
applications may require the line "export LPDEST=ps10" as well. For
example, acroread appears to send jobs to ps2 even if you have set the
If you're sure it went to the right printer, try the following steps:
- Have a look at the printer. If it says ``Processing Job'' or
``Warming Up'' on its panel, or its light is flashing, it's busy and you
may just have to wait for it to get through its queue of jobs. If it
says ``Powersave'' or ``Ready'' then it's idle and your job probably
didn't get through. See above for a longer list of printer messages.
- Check the printer queue on the same machine that you tried to
print from. To do this under Linux, use ``lpq -Pps2'' (replacing ps2
by ps10 if you tried to print to ps10). Under Windows, go to the Start
menu, select Settings then Printers, and double-click on the printer
- If you see your job in the queue, cancel it before trying again.
(You won't be able to delete other people's jobs by mistake.)
- Under Linux, use ``lprm -Pps2''.
- Under Windows, highlight your job and select Cancel from the
- PDF files often seem to cause trouble. If you try to print a PDF
file and nothing happens, printing it from Windows instead of Linux or
vice versa may
work. You can also try a different PDF viewer. Sometimes files which
won't print from acroread are fine with Foxit Reader.
- If you're having trouble printing to one of the older printers,
sending your job to a newer one may work. Currently the newest
printer is ps10.
- If your job still won't print, let a CO know, preferably by email