INSTALAR IMPRESORA Y SCANNER CX4900 EN LINUX

COMO ROOT CREAR EL MODULO
mknod /dev/usbscanner0 c 180 48
chmod 666 /dev/usbscanner0

INSTALAR TODOS LOS PROGRAMAS SANE.
apt-get install libsane xsane libsane-extras sane-utils

CONFIGURAR EL ARCHIVO /etc/sane.d/epson.conf
# epson.conf
#
# here are some examples for how to configure the EPSON backend
#
# SCSI scanner:
scsi EPSON
# for the GT-6500:
scsi "EPSON SC"
#
# Parallel port scanner:
#pio 0x278
#pio 0x378
#pio 0x3BC
#
# USB scanner:
# There are two different methods of configuring a USB scanner: libusb and the kernel module
# For any system with libusb support (which is pretty much any recent Linux distribution) the
# following line is sufficient. This however assumes that the connected scanner (or to be more
# accurate, it's device ID) is known to the backend.
usb 0x082b 0x04b8
# For libusb support for unknown scanners use the following command
# usb <product ID> <device ID>
# e.g.:
# usb 0x4b8 0x110
# And for the scanner module, use the following configuration:
#usb /dev/usbscanner0
#usb /dev/usb/scanner0


DRIVER PARA WINDOWS
ftp://ftp.epson.com/latin/drivers//Multi/cx4900/SCX4900_Escan_2.9mS_GM.exe

DRIVER ESCANNER PARA LINUX
http://lx1.avasys.jp/iscan/2.8.0/iscan-2.8.0-1.c2.tar.gz