Very good information to know about the printer, thanks. I am assuming
that the new cartridges I get from staples should not have the toxic ink?
Will it still be corrosive?
There was a second printer over there, missing the plastic cover and
scratched up. I think i will pick it up too for parts.
As far as the disk drive goes, if it is a proprietary hard drive in there,
that is a bummer. it spins up but does not sound too good. The drive in
the compuer itself does not sound too good either, but it is still working
and is scsi, which i have a stockpile of over here, so that is not an
issue.
On Sun, Jul 17, 2016 at 10:03 AM, tony duell <ard at p850ug1.demon.co.uk>
wrote:
Original
"A" version with HP-IB interface, useless for regular
PCs of course. Complete with the "SomethingJet" marketing
It's mildly easier to use with a normal PC than the -B model (HPIL,
battery powered). Interestingly the -A version has an HPIB-HPIL
interface feeding HPIL to the main board (the interface is a
modified (different firmware) version of the HP82169 IIRC.
Interesting #2, the custom HP controller chip in these printers
has a built-in ROM with the control firmware, but external
font ROM and RAM. These communicate over what is essentially
the Saturn bus, as found in the HP71, etc.
name that has been with us since then. The key
innovation of
I read somewhere that the official reason for 'THINKJET' was
'THermal INKJET'. I suspect that is very much a backronym. It
is a thermal inkjet printer, the cartridge has little heating elements
that boil the ink and cause a drop to be squirted out.
that printer was the disposable cartridge with
the micro-
machined nozzles, which they had a horrendous time
manufacturing at first. And for some incomprehensible reason,
you can still order brand new cartridges from... Staples! Just put
a new one in and you should be good to go.
A couple of words of warning about those cartridges. Firstly
the ink, at least in older ones, is ethylene glycol based. It's toxic
and attractive in taste to some animals. Keep those catridges
away from cats, dogs, etc.
The ink is also corrosive. It can corrode the metal faceplate
on the cartridge, then drip onto the flexible PCB that connects
the cartridge to the rest of the printer and corrode that too.
If you ever have a Thinkjet with missing dots, that's what has
happend (at least 99% of the time). The only source for
replacement PCBs now is other Thinkjets. So don't leave the
cartridge in the printer if you are not using it.
Incidentally, if the 9153 is the drive unit I think it is, it has a
very odd HP-interface hard disk in it. There is one ribbon
cable (40 wires I think) carrying power, control signals and
raw data. I seem to remember the head positioner is a
stepper motor, but it does micro-stepping as part of the
design.
-tony