Frank McConnell wrote:
jd wrote:
Ensor wrote:
[I think Ensor was quoting Tony Duell.]
I 'only' have the HP150-II. It's in a
larger case, with a 12"
CRT, an optional touchscreen (which is fitted on mine)....
So you don't have to vacuum out the LED/sensor array every few weeks...
Nice.
A couple things about this.
One, the optional touchscreen for the 150-II doesn't have the array of
holes, it has a smooth piece of IR-transparent plastic over the LEDs
and sensors. So, you don't have to vacuum out the LED/sensor array,
just wipe it off.
It's cool, ain't it?
Two, it took about a year or two for 150A/B in an
office environment
to clog up.
Three months max in the office and two years in a class 1000 cleanroom.
Sucking and blowing was not good enough to clean the units out; they had
to be disassembled and cleaned out with wipes and swabs.
The 150C's had to be wiped off every few weeks or the touch feature
would get erratic.
And cleaned the internal printer without chipping the print head. Ruined
a few silent 700s learning how...
Of course, when they were opened for cleaning, we would just clean the
whole thing out and drop the really stubbornly dirty stuff in the vapor
degreaser. Better than zapping it with compressed gas.
I suppose it's better in areas where the water isn't as hard and doesn't
turn clothes washers into clothes grinders.
One Of These
Days, I'm going to make some covers for those holes on my 150A's
from all that vinyl packaging I've had to buy just to (try to) get the stuff
inside them.
As you might guess from the above, you can do that.
Yep, we figured that out, eventually. Used acetate back then.
--
jd
Do not try to solve all life's problems at once -- learn to dread each
day as it comes.
-- Donald Kaul