[vcf-midatlantic] Greenbar printout DONE!
W. Bryan Caudle
bcaudle at ctsi.net
Sun Feb 28 18:36:41 UTC 2021
Great point Dave. If a line printer was fitted with a DB9 connector would it actually exist?
Sent from my iPhone
> On Feb 28, 2021, at 1:32 PM, Dave McGuire via vcf-midatlantic <vcf-midatlantic at lists.vcfed.org> wrote:
> On 2/28/21 1:13 PM, Andrew Diller via vcf-midatlantic wrote:
>> Just to be clear- when you say they are line printers, that means that they have pins across the entire width of the paper/platen - and can print an entire line at a time, right? There is no moving print head...
> It depends. "Line printer" is one of those terms that became
> successively more abused as time went on. It used to mean "prints a
> whole line at a time", but later that definition became somewhat distorted.
> Kinda like architects using big floor-standing HP ink-jet printers,
> calling them "plotters", to the point where HP themselves calls them
> "plotters". They are not plotters; they are ink-jet printers. But they
> replaced pen/vector plotters, so they kept calling their output devices
> We have a big Tally/Genicom 4490XT printer at LSSM. This 1400 LPM
> printer prints an entire line at a time, but how it does it does
> actually involve a moving print head. The print head is the width of
> the paper, but it has columns of pins in groups with spaces between
> them. While printing, that head moves back and forth at great speed,
> you can barely see it move, with a total reciprocating lateral travel of
> maybe 1/4". It moves the groups of pins back and forth to fill in the
> gaps between the groups. But it's still called a "line printer".
> Dave McGuire, AK4HZ
> New Kensington, PA
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