THE best find of the weekend! - test-drb@ccmp.vtda.org

11 Feb 2002

On Feb 10, 21:15, Steve Robertson wrote:

...
  Speaking of Daisy Wheel printers... I prefer to use a
daisy wheel for
 printing plain text stuff. Currently, I have a DIABLO 630 and am having real
...
  difficulty talking to it. Seems like when I try to
print anything, I get
 buffer overruns, the wrong chatracters printed, and all kind of other
 errors. I have tried every possible combination of comm settings, flow
 control, etc... to no avail. Does anyone know where I can find the specs for
...
  setup and handshaking for this printer. 
Some... this isn't direct from Diablo docs, but from a book I have that
lists lots of RS232 setups:

Diablo Systems, Inc:  RO 630

Pin      Function                   Direction

 1       protective ground          n/a
 2       transmitted data           from 630
 3       received data              to 630
 4       request to send            from 630 (note 1)
 5       clear to send              to 630
 6       data set ready             to 630   (note 2)
 7       signal ground              n/a
 8       rec. line signal detector  to 630
11       printer ready              from 630 (note 3)
20       data terminal ready        from 630 (note 3)

Note 1: Pin 4 is always on (high)
Note 2: Pin 6 must be on (high) before the 630 can receive data
Note 3: Pin 20 can be used instead of pin 11 for hardware flow control

-- 
Pete						Peter Turnbull
						Network Manager
						University of York