The ones covering the windows are labels with small holes in them, I'd
be surprised if the rest of the bus was not a label (or multiple aligned
labels) as well.  The newer billboards along the highways are also very
large banners, printed by even larger machines.

The largest large format printer HP makes (or at least that's shown on
their website) prints 60" wide (up to 600" long), and they have various
outside inks and materials to print on from tyvek to clear plastics with
adhesive.  Others make all sorts of labels.  It would take two stretches
of this to cover a buss, and the little holes in the window portion
could simply be places where the ink isn't applied on clear film.

But I've never been involved in the industry, so I could be way off.  I
do know tha a lot of solid color decals are cut out of rolls of adhesive
colored label, and simply applied to the busses, rather than painting.

-Adam

Mike Harrison wrote:

>Remember that some inkjet replacement cartridges - e.g.  HP actually
>incorporate the printhead, so you could probably use these on their
>own. I always tfancied the idea of turning one of these into an
>airbrush.
>Perhaps with some sort of spatial position encoder (gyro?) you could
>make a handleld 'spraygun'  that would spray a picture onto a large
>surface......
>
>Drifting ever more OT, does anyone know how they paint those
>full-sized advertising images on the back of double-decker buses ?
>
>
>On Wed, 27 Feb 2002 12:34:44 -0500, you wrote:
>
>>I am looking into driving a small inkjet print head.
>>I have found a Japanese Seiko site that shows assembly level print heads
>>offered, but their English sites show only thermal printheads.
>>
>>Does anyone have a source for inkjet heads that can be intgrated into a PIC
>>controlled design?
>>
>>Chris
>>
>
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