1 Sep
1999
1 Sep
'99
7:40 p.m.
Joe <rigdonj(a)intellistar.net> wrote:
Sounds like a HP 7221 plotter with paper feed. I
have one of them and a
9874 that's similar but has a HP-IB inteface. Someone dropped the 9874 on
one corner and bent the whole thing out of kilter. I've tried everything
but I can't get it to feed paper right. The framne is too heavy to try and
straighten out. Perhaps if I took it to someone that has a puller for
straightening car frames .....
I think you must be referring to the HP 9872. They sold basically the
same plotter as three models:
HP 7220 - RS-232 serial, compact binary language
HP 7221 - RS-232 serial, HP-GL, same hardware as 7220 but with different ROMS
HP 9872 - IEEE-488 (HP-IB), HP-GL
Different letter suffixes denoted the generation of the plotter, and whether
it had the roll feed (e.g., 9872 A/B/C without, and 9872 S/T with). Early
generations had four pen stalls, and later ones had eight.
Note that these were the first HP-GL plotters, and the language evolved
some minor differences that prevent some modern software from working with
them. I built my own serial-to-488 box to use with mine, and my firmware
tweaks the HP-GL when necessary.
"Richard Erlacher" <edick(a)idcomm.com> wrote:
God be thanked, it's not at all like that
miserable piece of junk! If id
hadn't said HP on it, nobody with more than two grey cells would have taken
one home.
I can't believe you'd say that about this series of plotters, which were
very well-engineered and solidly built flatbed plotters. Are you
sure you're not thinking about the 7225, or the much later "consumer"
grit-wheel plotters such as the 7470 and 7475?