[Cialug] Free junk

[Daniel A. Ramaley]

I'm guessing what we have here is a line-matrix printer then. The head 
doesn't move back and forth like a dot-matrix printer. And for its size 
it is fairly quiet. The foam-insulated cabinet it is in might account 
for the relative lack of noise though.

On 2009-05-01 at 10:13:07, David Champion wrote:
>The models I'm thinking of didn't have a conventional print head per
>se... they had a bar that was the width of the entire page (for the
> wide 120 column paper), with 120 pins in it. The entire bar was
> mounted on cams, and oscillated around so fast you could barely see
> it. The pins would fire as the bar rotated past the desired position,
> kind of like a chain / band printer, but with pins. It was amazing to
> watch them print.
>
>http://en.wikipedia.org/wiki/Line_matrix_printer
>
>-dc
>
>Dave J. Hala Jr. wrote:
>> I had a similar printer at a previous job in the accounting dept. It
>> was used to print payroll. It was smoking fast.  Its was in an
>> enclosure to deaden the noise. It was so noisy that it shook the
>> entire enclosure. The print head changed direction so violently that
>> the entire table "wiggled".
>>
>> It was kinda cool to watch -if you were wearing ear plugs. It was
>> amazing see tractor fed paper pulled through something so fast.

------------------------------------------------------------------------
Dan Ramaley                            Dial Center 118, Drake University
Network Programmer/Analyst             2407 Carpenter Ave
+1 515 271-4540                        Des Moines IA 50311 USA