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Conference turris::digital_unix

Title:DIGITAL UNIX(FORMERLY KNOWN AS DEC OSF/1)
Notice:Welcome to the Digital UNIX Conference
Moderator:SMURF::DENHAM
Created:Thu Mar 16 1995
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:10068
Total number of notes:35879

9437.0. "Serial printers and flow control" by NETRIX::"[email protected]" (Adrian Morrisson) Wed Apr 09 1997 00:15

G'day 
	I've posted this note in unix_printing as well, but it looks like it is 
more than a printing issue. 

        I have a customer running DU3.2B and we are trying to set up a serial
printer. We've had no problems setting the printer up but we can not get print

jobs to stay in the queue if the printer is turned off.
ie
When printer is offline, not connected or turned off, any printjobs sent there
vanish after some time. lpstat command shows " no entries".
Is this normal behaviour for 3.2? I can fix it under 4.0 with the stty
-crtscts option but this doesn't help me with 3.2
Also I can't seem to change the settings on ixon and clocal. Is this normal?

This is the printcap I am usingser|lp8:\
        :af=/usr/adm/lp8acct:\
        :br#9600:\
        :ct=dev:\
        :fc#0177777:\
        :fs#024:\
        :lf=/usr/adm/lp8err:\
        :lp=/dev/tty00:\
        :mx#0:\
        :pl#66:\
        :pw#80:\
        :rw:\
        :sd=/usr/spool/lpd8:\
        :xc#0:\
        :xf=/usr/lbin/xf:\
        :xs#000400:

and these are the stty setting,
speed 9600 baud; 0 rows; 0 columns
erase = ^H; werase <undef>; kill = ^U; intr = ^C; quit = ^\; susp = ^Z
dsusp <undef>; eof = ^D; eol <undef>; eol2 <undef>; stop = ^S
start = ^Q; lnext <undef>; discard <undef>; reprint <undef>; status <undef>
time = 0; min = 1
-parenb -parodd cs8 -cstopb -hupcl cread clocal 
-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl -iuclc 
ixon -ixany -ixoff -imaxbel 
isig icanon -xcase echo -echoe -echok -echonl -noflsh -mdmbuf -nohang 
-tostop -echoctl -echoprt -echoke -altwerase -iexten -nokerninfo 
opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel tabs -onoeot 
# 

Thanks


Adrian 
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9437.1Serial printers/Parallel printers are slowly fading away?NETRIX::&quot;[email protected]&quot;SriThu Apr 10 1997 10:0320
Hi,

	In as much as we support printers locally, first we have to
note that:

1) They are not inherently fast,
2) Not cost effective to keep on supporting at a complexity very
	hard to understand and costly to keep those skills updated.
3) Good olden days serial printers are a costly/necessary device
	I bet the resources allocated for them to make run
	was a good business decision. 

Of late its not so much fun/wise to invest resources in
figuring out the low level stuff you are looking for.

Note this is all my personal openions. 

Regards
Sri
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