Walt wrote:

I have an older HP scanner, and it has a DB25 connector for SCSI.
A DB25 connector is just one standard for SCSI and it is true, a
DB25 connector is also used for parallel printer ports.


I don't think DB25 is standard for SCSI, but it _was_ used, standard
or not.

SCSI can also be daisy changed and why there is second DB25 connector
on your scanner.

wrote:

... it has a SCSI interface with a SCSI
card included, but looking at the scanner, it appears to have a
parallel port interface(right number of pins), including a connector
with a printer symbol, presumably for sharing the parallel port. Can
anyone explain this seeming contradiction?