Relay control w/ parallel interface

[Nicolas Rey <nicorey@club-internet.fr>]

Setting up my Apple IIe with a EPSON parallel interface to control our
optical printer I ran into two problems. I thought using the 8 data pins
to control a relay each, but :

a) Pin #9 doesn't seem to be active when I try to print a character with
an ASCII code of 128 or higher. Is there a possibility to change that ?

b) PRODOS interprets a "? CHR$(4);" instruction in a program line as the
preamble for a disk command. Anyway I can actually print a CHR$(4) to
activate pin #4 ?

Thank you for your help - 

Oh, and one final question. I forgot: is there a PRODOS command to
initialize disks, or is it compulsory to go through the Utilities disk?
It's been a while...

-- 
Nicolas Rey


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En ce temps-l�, j'�tais cr�dule, un mot m'�tait promission
Et je prenais les campanules pour les fleurs de la passion