LX-300+ parallel port

[average_user]

Hello,
I have problems with printer EPSON LX-300+ connected to parallel port. I do not know what's wrong. My English is basic, so I apologize for the brevity.

I'm running:

Kernel : Linux 3.2.0-23-generic (i686)
Compiled : #36-Ubuntu SMP Tue Apr 10 20:41:14 UTC 2012
C Library : Unknown
Default C Compiler : GNU C Compiler version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
Distribution : Linux Mint 13 Maya
Desktop Environment : Cinnamon

I have found this "DebuggingPrintingProblems" page: https://wiki.ubuntu.com/DebuggingPrinti ... rt_printer

Parallel port printer
1. Make sure that the printer is connected to your system and powered on.
2. Open a terminal/console and check if the lp, ppdev, and parport_pc kernel modules are loaded:
$ lsmod | grep lp
$ lsmod | grep ppdev
$ lsmod | grep parport_pc
3. Check if the kernel detected the parallel port during bootup:
$ dmesg | grep par 
4. Check if the device files of the parallel port(s) are created and have the correct permissions and ownerships:
$ ls -l /dev/lp* /dev/parport* 
5. Check if the printer auto-detection result appears in the kernel's virtual file system:
$ ls -l /proc/sys/dev/parport/parport*/autoprobe* 
$ sudo cat /proc/sys/dev/parport/parport*/autoprobe* 
6. Find out if your printer gets detected by CUPS:
$ lpinfo -v
7. Run the parallel port CUPS backend separately, once with standard user privileges and once as root:
$ /usr/lib/cups/backend/parallel 
$ sudo /usr/lib/cups/backend/parallel 
8. Attach the output of the above commands to the bug report.

That is what came out:

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$ lsmod | grep lp 
drm_kms_helper         45466  1 radeon 
drm                   197692  5 radeon,ttm,drm_kms_helper 
lp                     17455  0 
parport                40930  3 ppdev,parport_pc,lp 
$ lsmod | grep ppdev 
ppdev                  12849  0 
parport                40930  3 ppdev,parport_pc,lp 
$ lsmod | grep parport_pc 
parport_pc             32114  1 
parport                40930  3 ppdev,parport_pc,lp 
$ dmesg | grep par 
[    0.000000] Booting paravirtualized kernel on bare hardware 
[    0.000000] vt handoff: transparent VT on vt#7 
[    0.245531] hpet0: 3 comparators, 64-bit 14.318180 MHz counter 
[   16.474889] parport_pc 00:09: reported by Plug and Play ACPI 
[   16.474961] parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,ECP,DMA] 
[   17.144966] ppdev: user-space parallel port driver 
[   17.265931] parport0: Printer, EPSON LX-300+ 
[   17.268528] lp0: using parport0 (interrupt-driven). 
$ ls -l /dev/lp* /dev/parport* 
crw-rw---- 1 root lp  6, 0 lis 12 13:10 /dev/lp0 
crw-rw---- 1 root lp 99, 0 lis 12 13:10 /dev/parport0 
$ ls -l /proc/sys/dev/parport/parport*/autoprobe* 
-r--r--r-- 1 root root 0 lis 12 13:13 /proc/sys/dev/parport/parport0/autoprobe 
-r--r--r-- 1 root root 0 lis 12 13:13 /proc/sys/dev/parport/parport0/autoprobe0 
-r--r--r-- 1 root root 0 lis 12 13:13 /proc/sys/dev/parport/parport0/autoprobe1 
-r--r--r-- 1 root root 0 lis 12 13:13 /proc/sys/dev/parport/parport0/autoprobe2 
-r--r--r-- 1 root root 0 lis 12 13:13 /proc/sys/dev/parport/parport0/autoprobe3 
$ sudo cat /proc/sys/dev/parport/parport*/autoprobe* 
CLASS:PRINTER; 
MODEL:LX-300+; 
MANUFACTURER:EPSON; 
DESCRIPTION:EPSON LX-300+; 
COMMAND SET:ESCP9,PRPII9,BDC,D4; 
$ lpinfo -v 
network ipp 
network ipps 
network http 
network beh 
network ipp14 
network https 
network lpd 
network socket 
$ /usr/lib/cups/backend/parallel  
$ sudo /usr/lib/cups/backend/parallel 
direct parallel:/dev/lp0 "EPSON LX-300+" "EPSON LX-300+ LPT #1" "MFG:EPSON;CMD:ESCP9,PRPII9,BDC,D4;MDL:LX-300+;CLS:PRINTER;DES:EPSON LX-300+;" "" 
$ 

I'm not very experienced and I do not know what's wrong. Thank you in advance for your help.

[cwsnyder]

It looks like you need to issue this command to fix your problem:

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chmod 0700 /usr/lib/cups/backend/parallel

Reference this thread on the Slitaz forum: http://vanilla.slitaz.org/index.php?p=/ ... in-cups/p1

[average_user]

Thank you for the quick response. Only when I run nautilus via the console with the command sudo I could change the permissions for writing and reading. Unfortunately it did not work. I followed the link and I still can not get "direct parallel :/ dev/lp0". extract command "lpinfo -v" looks like this:

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$  lpinfo -v
network http
network ipps
network ipp14
network https
network smb
network ipp
network lpd
network beh
network socket
direct hp
direct hpfax

[cwsnyder]

Thank you for the quick response. Only when I run nautilus via the console with the command sudo I could change the permissions for writing and reading. Unfortunately it did not work. I followed the link and I still can not get "direct parallel :/ dev/lp0".

Okay, why are you looking to get the exact /dev/lp0 instead of a device which will connect through cups and a print spool?

[average_user]

Probably I'm wrong. I'm really a novice. I thought that lp0 must be in the list of cups that can communicate with a parallel port. By that I mean a list of command "lpinfo -v"

[cwsnyder]

The main problem I spotted when I went through your trouble-shooting list was that your ordinary user could not access the printer by /usr/lib/cups/backend/parallel , which was what I was attempting to fix. The command should probably be

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sudo chmod 0777 /usr/lib/cups/backend/parallel 

to shotgun it, because you still don't seem to have the correct permissions set. After doing the above, would you please enter the following after a reboot, to see if I at least got that right?

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$ /usr/lib/cups/backend/parallel

Then see what you get with the lpinfo -v output?

[average_user]

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$ sudo chmod 0777 /usr/lib/cups/backend/parallel 
[sudo] password for ****: 
 $ 

reboot

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 /usr/lib/cups/backend $ ls -l
celkem 676
-rwxr-xr-x 1 root root   7250 čec  6 14:16 beh
-rwxr-xr-x 1 root root 128900 bře 21  2012 bluetooth
-rwxr--r-- 3 root root  18056 srp 20 16:07 dnssd
-rwxr-xr-x 1 root root  17976 čec 10 10:39 hp
-rwxr-xr-x 1 root root   9042 čec 10 10:37 hpfax
-rwxr--r-- 5 root root  63484 srp 20 16:07 http
-rwxr--r-- 5 root root  63484 srp 20 16:07 https
-rwxr--r-- 5 root root  63484 srp 20 16:07 ipp
-rwxr--r-- 5 root root  63484 srp 20 16:07 ipps
-rwxr--r-- 2 root root  46968 srp 20 16:07 ipp14
-rwxr--r-- 2 root root  38704 srp 20 16:07 lpd
-rwxr--r-- 3 root root  18056 srp 20 16:07 mdns
-rwxrwxrwx 1 root root  17960 kvě 18 10:03 parallel
-rwxr-xr-x 1 root root  13832 kvě 18 10:03 serial
lrwxrwxrwx 1 root root     21 čen  9 00:52 smb -> ../../../bin/smbspool
-r-xr-xr-x 2 root root  22216 srp 20 16:07 snmp
-r-xr-xr-x 2 root root  30448 srp 20 16:07 socket
-r-xr--r-- 2 root root  30416 srp 20 16:07 usb

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$  lpinfo -v 
network ipps
network http
network https
network socket
network ipp14
network ipp
network lpd
network beh
network dnssd://EPSON%20Epson%20Stylus%20Office%20BX610FW%20%40%20MacBook%20(alina%20humel)._ipp._tcp.local/cups
network dnssd://HP%20LaserJet%206L%20%40%20MacBook%20(alina%20humel)._ipp._tcp.local/cups
network smb
direct hp
direct hpfax

Thank you for your patience.

[AlbertP]

Please install system-config-printer-gnome from the repository and run system-config-printer: there you can click Add, and probably see your parallel port or printer at the left.

[average_user]

Please install system-config-printer-gnome from the repository and run system-config-printer: there you can click Add, and probably see your parallel port or printer at the left.

"system-config-printer-gnome" I already had installed. I have not seen parallel port or printer. Thank you for your willingness.