shai hess wrote:
Can anyone help me to find IBM books which give the data about the CCWs of
the MF attached printers?
I did not find anything on bitsavers.org (there is a 1403
manual, but it's for the 1401 system). A google.com search
turned up lots of hits, but nothing relevant. And apparently I
didn't keep my copies, either.The closest I came was a reference
card image, which is perfectly legible provided you already know
what it says:
http://ai-integration.biz/images/IBM360-12.jpg
I tried ibm.com search, but found too many, and inapplicable
hits. I did find one document that lists the machine control codes:
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/rzau6/rzau6machine.htm
The desired character is the CCW command code, with a normal CCW
0 format (code/address/flags/length). Many printers also used
FCB and UCS load commands, but I couldn't find a decent source
for those (and they're device and model dependent). By default a
channel 1 skip is top of page eject; channels 9 and 12 were used
by some installations at or near the bottom of the page. Usage
of channels other than 1 is highly idiosyncratic; the only rule
is to have at least one definition for each channel to avoid
printer runaway.
Gerhard Postpischil
Bradford, VT
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