In <H0000066001c090b@MHS> Isaac Blake <[log in to unmask]>
writes:
>
>This is a shot in the dark...  First why do you need to use a 2566???
Do you
>have special forms requirements which require an impact printer vs a
laser
>printer???  Also these printers are getting close to the end of their
support
>cycle, and cost a fair amount for support/maintenance.
>
>I've seen HP-IB cards for PC's, but for quite some time.  The last
"PC" which
>supported HP-IB I think was the HP150.  You definately do *NOT* want
to use a
>serial port because it won't be able to drive the printer to it's
fullest
>capacity.
>
>Here's some old math (and I can be wrong on this!!!):
>
>900LPM * 80 = 72,000 CPM (characters per minute) * 60 = 4,320,000 CPS
>                                              SB / 60
>That's the number of characters per second your printer might print.
>
>Now baud rate, such as 115.2K (maximum for a 16650 UART) represents
bits per
>second, so to convert it to bytes divide by 10.  So a serial port on a
PC with
>the latest UART can communicate 11,520 characters per second.
>
>So unless my math is off, that makes the printer 375 times faster than
what the
>PC can send over a serial port to the printer.  Hense you can see why
laser
>printers use the parallel interface.
>
>Of course a few weeks ago I was helping my wife with some advanced
college math,
>and it was a real challenge getting the cobwebs out!!!  :-)
>
>/isaac
 
 
 Try 1200 characters per second, also this printer may slow down
further it switched into 132 column mode.
 
 
Jerry Walsh