K 10
svn:author
V 5
joerg
K 8
svn:date
V 27
1996-04-04T12:28:36.000000Z
K 7
svn:log
V 478
Work around a braindead signal handling in many newer HP printers.
They don't have BUSY de-asserted by the time they ACK (and thus cause
an interrupt).  The workaround is to try seeing if the BUSY will be
de-asserted soon, and if not, to use an incremental backoff and
semi-polled mode instead of the fixed timeout with 1/2 s we've been
using previously (that caused the printer to run really slooow).

Printers that have been working previously should not be affected by
this.

END