topic Re: print fails on Serial attached printer in Operating System - Linux

print fails on Serial attached printer

Maaz — Wed, 23 Dec 2009 16:30:47 GMT

after attaching this printer via serial cable(to serial port), I did the following
# ls > /dev/ttyS0

after 2 or 3 seconds, I got the prompt back, but nothing prints.

no messages/hints in dmesg and /var/log/messages.

please help

Re: print fails on Serial attached printer

Tim Nelson — Wed, 23 Dec 2009 17:30:21 GMT

did you set up the port baud rate, parity, xon/xoff, etc ?

stty can be used.

this is stretching my memory, you man need to do some googling...

Re: print fails on Serial attached printer

Steven Schweda — Wed, 23 Dec 2009 17:32:42 GMT

> [...] this printer [...]

Not a useful description.

> [...] serial cable [...]

You think that there's only one kind of
serial cable?

Bad/wrong cable?

Mismatched serial port characteristics
(speed, bits, parity)?

man stty

Re: print fails on Serial attached printer

Huc_1 — Thu, 24 Dec 2009 06:11:08 GMT

Here on fedora 12

ls -l /dev/ttyS0
crw-rw----. 1 root dialout 4, 64 dÃ©c 24 06:45 /dev/ttyS0

Perhaps you need to check that

enjoy, life.

Jean-Pierre Huc

Re: print fails on Serial attached printer

Maaz — Thu, 24 Dec 2009 10:32:08 GMT

its SLES 10 SP2

# ls -l /dev/ttyS0
crw-rw---- 1 root uucp 4, 64 Dec 24 15:10 /dev/ttyS0

# lpstat -t
scheduler is running
system default destination: printer
device for printer: serial:/dev/ttyS0?baud=9600
printer accepting requests since Jan 01 00:00
printer printer is idle. enabled since Jan 01 00:00

# stty -F /dev/ttyS0
speed 9600 baud; line = 0;
-brkint -imaxbel

# stty -a < /dev/ttyS0
speed 9600 baud; rows 0; columns 0; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = ; eol2 = ; swtch = ; start = ^Q; stop = ^S; susp = ^Z;
rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
-parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8
opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke

Re: print fails on Serial attached printer

Steven Schweda — Thu, 24 Dec 2009 12:31:49 GMT

> # stty -a < /dev/ttyS0
> [...]

Wonderful. Now, if we knew anything at all
about the configuration of the printer, or
the cable, ...

If you can't supply any useful information,
then you might do better with prayer to the
all-knowing deity of your choice.

Re: print fails on Serial attached printer

haytham_hosny — Sun, 27 Dec 2009 07:07:45 GMT

Hi ,

please go through the below link

http://aplawrence.com/Unixart/printers.html

hope this helps you

Thanks
Haytham Hosny