Ah, happy, happy boughs! that cannot shed

Fun printer hack story from work.

Higher-end HP laser printers have a small LCD letter display on the front, that they use to display status messages, etc. This morning, I heard about a way to change this message to any arbitrary string, using a very short piece of perl code. Now, I am too much of an upstanding citizen to actually make use of this knowledge. However, I am not so well-behaved as to not send the information to someone who would make use of it — the office’s resident bitter sys admin.

He took the news with quite a bit of relish. (I heard him from about 5 cubes away exclaim, “Oh goody!”)

For a while this morning the printer said “GRAPE JAM”. After that it said “PRESS ESC TO CONTINUE”. When I left the office it was saying “MY MIND IS GOING I CAN FEEL IT”. He claims he’ll be changing it about once a day from now on.

It’s confusing the hell out of sales. I approve.

  1. substitute says:

    I LIKE GRAPE JAM!

  2. stimps says:

    Tell him I’ll pay him a buck if he makes it say “VINCIBLE PANTS!” for a day. =D

  3. sinsofthedove says:

    HOW???? HOW DO I DO IT???

  4. tuanh says:

    That’s just awsome! :)

  5. do_not_lick says:

    The code is here:

    http://www.lafferty.ca/software/hpcode

    Tweak to your pleasure.

    Or if you’d like I could fiddle it somewhat.

  6. astrange says:

    The proper BOFH thing to do would be to print “END YOUR LIFE IT’S THE ONLY WAY” and “QUIT PRINTING PORN”.

  7. do_not_lick says:

    Which is exactly why the BOFH stories are rarely amusing.

  8. elnigma says:

    great stuff. thanks!

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