On a Scanner???
That's right. The HP ScanJet 4c's SCL
(Scanner Control Language) command set includes an unofficial PLAY TUNE
command. I stumbled across
this after reading an article on
the ScanJet 4c
in the feb. 1997 issue of HP Journal (see the sidebar Sing to Me
The PLAY TUNE command basically
varies the stepping rate of the scanner motor to produce audible
frequencies. All it needs is a series of note frequencies and durations
previously written to its SCSI buffer. The ScanJetPlay utility resulted from my
efforts in trying out this easter egg. Check dis shit out, babee! :^)
ScanJetPlay requires libsane and
libsanei (for SCSI access) from the SANE backends package
that libsanei and its header files is not installed per default, and
must be done manually.
This software is known to work on the
Scanjet 4p and 4c. It should also work on the 3p and 3c, which are
mechanically identical. It *may* work on later SCL-based models with
SCSI interface (which I believe have long been discontinued), but this
is untested. I'd appreciate user feedback on this.
The Obligatory Disclaimer...
This program is distributed in the
hope that it will be useful, but WITHOUT
ANY WARRANTY; use at your own risk. The author assumes no
liability for any damages incurred by its use, particularly to scanning
hardware. Care has been taken to avoid potential damage, but if your
scanner acts strangely SHUT IT DOWN
IMMEDIATELY! (Of course music emanating from a scanner is not considered strange). By using
this software, you agree to these terms.
Update: Video is back online! After
serious bandwidth problems with my ISP I was contacted by some kind
souls who made the video available from their webspace. The links below
point to these mirrors. Thanks Sven and Nicolas!
Check out da video of da ScanJet 4c in action! (1.4 Mb MPG)
(Actually, this could also be my 4p... bugger if I can tell the diff!)
Don't mess wit da counta, babee...