[blfs-support] Printer not working

Fernando de Oliveira famobr at yahoo.com.br
Mon Nov 5 17:59:22 PST 2012


LFS"7.1"
CUPS-1.6.1

$ udevadm --version
181

I have it working in LFS"7.2".

But here, there is a problem, perhaps not with CUPS.

I believe /dev/bus/usb/00{1,2} are for the multifunction printer/scanner:

$ scanimage -L
device `epson2:libusb:001:002' is a Epson CX7400 flatbed scanner
device `epson:libusb:001:002' is a Epson CX7400 flatbed scanner

The device is actually an Epson CX7300, and I use:
 
Driver:	Epson Stylus CX7000F - CUPS+Gutenprint v5.2.8 (color, 2-sided
printing)

This is what I get from other distributions, but I believe it would work
using

Driver:	Epson Stylus CX7400F - CUPS+Gutenprint v5.2.8 (color, 2-sided
printing)

The probable cause for my problem is related to permissions, as the
devices have not the expected groups:

In LFS"7.2" (where printer and scanner work):

$ cat /etc/lfs-release
SVN-20120916

$ ls -lh /dev/bus/usb/00{1,2}
/dev/bus/usb/001:
total 0
crw-rw-r-- 1 root lp 189, 0 Nov  5 10:47 001
crw-rw-r-- 1 root lp 189, 1 Nov  5 12:01 002

/dev/bus/usb/002:
total 0
crw-rw-r-- 1 root lp   189, 128 Nov  5 10:47 001
crw-rw-r-- 1 root lp   189, 129 Nov  5 10:47 002
crw-rw-r-- 1 root lp   189, 130 Nov  5 10:47 003
crw-rw-r-- 1 root root 189, 131 Nov  5 10:47 004

However, in LFS"7.1" (where only the scanner works, printer never worked):

$ cat /etc/lfs-release
SVN-20120311

$ ls -lh /dev/bus/usb/00{1,2}
/dev/bus/usb/001:
total 0
crw-rw-r-- 1 root root    189, 0 Nov  5 22:27 001
crw-rw-r-- 1 root scanner 189, 1 Nov  5 22:32 002

/dev/bus/usb/002:
total 0
crw-rw-r-- 1 root root 189, 128 Nov  5 22:27 001
crw-rw-r-- 1 root root 189, 129 Nov  5 22:27 002
crw-rw-r-- 1 root root 189, 130 Nov  5 22:27 003
crw-rw-r-- 1 root root 189, 131 Nov  5 22:27 004

Probably, due to this, CUPS cannot find the printer.

I have reinstalled udev, cups, cups-filters, sane-backends, xsane, but
nothing. There is no usb device with group lp:

$ ls -lh /dev/bus/usb/* | grep lp

(nothing appears)

Thanks for any help.

[]s,
Fernando




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