[cups.general] Epson LX-400 dot printer cups support, with udev rules

[Jean-Michel Pouré - GOOZE]

Dear Friends,

I am trying to use the Epson LX-400 dot printer under Debian GNU/Linux
SID, without success. This is cups 1.4.6-9. I have 3 other USB printers
working fine.

lsmod | grep usb
usb_storage            34951  0 
usbcore                99121  5 usb_storage,uas,ohci_hcd,ehci_hcd
scsi_mod              134453  6 sg,sr_mod,usb_storage,uas,sd_mod,libata

usblp is blacklisted, which is normal.

lsusb                  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 1a40:0201 TERMINUS TECHNOLOGY INC. 
Bus 001 Device 003: ID 1a40:0101 TERMINUS TECHNOLOGY INC. USB-2.0 4-Port
HUB
Bus 001 Device 004: ID 3980:0002  
Bus 001 Device 005: ID 04b8:0803 Seiko Epson Corp. Printer (Composite
Device)
Bus 001 Device 006: ID 0922:0019 Dymo-CoStar Corp. 
Bus 001 Device 007: ID 04b8:011e Seiko Epson Corp. Perfection 1660 Photo
Bus 001 Device 008: ID 0e8d:1836 MediaTek Inc. 

The printer is Bus 001 Device 004: ID 3980:0002

So I added this udev rule:
ATTRS{idVendor}=="3980", ATTRS{idProduct}=="0002", MODE:="0664",
GROUP:="lp"

I am planning to use the Epson 9-pin Series CUPS driver.

Still, Cups cannot see the LX-400 printer.
Any idea?

Kind regards,
Jean-Michel