[Printers] Pattern from a Toshiba FC-22

[Michael Sleator]

Attached is a PNG of the dot pattern from a Toshiba FC-22 printer/copier.
This was gleaned in copy mode.  (The machine is not presently on line for
printing.)  I made several copies a couple of days apart, and the pattern
appears to be constant over time and copies.  I haven't had a chance to
try to figure out what the serial number of the machine is yet, but if I
do, I'll post a follow-up with that info.

The data pattern is 22 x 17 bits, with a blank row and column separating
one copy from another.  The dot pitch is about 1.75mm.

Note that all columns have even parity except the rightmost one.  I
confirmed that this is true on several instances of the pattern and
on multiple pages, so I'm fairly sure this is not an imaging error.

(This image was produced by scanning the printer output with a crufty
old HP ScanJet 6200C at 1600dpi and doing some simple manual processing
with Gimp.)

regards,
Michael Sleator

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