I have tried to get error reports and selected the important parts.
1:-before
I [14/Dec/2015:10:45:07 +] Please move "SystemGroup lpadmin" on line 3 of
/etc/cups/cupsd.conf to the /etc/cups/cups-files.conf file; this will become an
error in a future release.
I [14/Dec/2015:10:45:07 +] Listening to [v1.::1]:631 (IPv6)
I [14/Dec/2015:10:45:07 +] Listening to 127.0.0.1:631 (IPv4)
I [14/Dec/2015:10:45:07 +] Remote access is disabled.
D [14/Dec/2015:10:45:07 +] Added auto ServerAlias george-EasyNote-SL51
I [14/Dec/2015:10:45:07 +] Loaded configuration file "/etc/cups/cupsd.conf"
D [14/Dec/2015:10:45:07 +] Using keychain "/etc/cups/ssl" for server name
"george-EasyNote-SL51".
I [14/Dec/2015:10:45:07 +] Configured for up to 100 clients.
I [14/Dec/2015:10:45:07 +] Allowing up to 100 client connections per host.
I [14/Dec/2015:10:45:07 +] Using policy "default" as the default.
D [14/Dec/2015:10:45:07 +] load_ppd: Loading
/var/cache/cups/EPSON-Usb.data...
D [14/Dec/2015:10:45:07 +] cupsdRegisterPrinter(p=0x80dd08c8(EPSON-Usb))
D [14/Dec/2015:10:45:07 +] load_ppd: Loading
/var/cache/cups/EPSON-Wireless.data...
D [14/Dec/2015:10:45:07 +]
cupsdRegisterPrinter(p=0x80dd48e8(EPSON-Wireless))
D [14/Dec/2015:10:45:07 +] cupsdMarkDirty(--p--)
D [14/Dec/2015:10:45:07 +] cupsdSetBusyState: newbusy="Dirty files",
busy="Not busy"
I [14/Dec/2015:10:45:07 +] Partial reload complete.
D [14/Dec/2015:10:45:07 +] Calling FindDeviceById(cups-EPSON-Usb)
D [14/Dec/2015:10:45:07 +] Calling
DeleteDevice(/org/freedesktop/ColorManager/devices/cups_EPSON_Usb)
D [14/Dec/2015:10:45:07 +] Using profile ID "EPSON-Usb-Gray..".
D [14/Dec/2015:10:45:07 +] Calling CreateProfile(EPSON-Usb-Gray..,temp)
W [14/Dec/2015:10:45:07 +] CreateProfile failed:
org.freedesktop.ColorManager.AlreadyExists:profile id 'EPSON-Usb-Gray..'
already exists
D [14/Dec/2015:10:45:07 +] Using profile ID "EPSON-Usb-RGB..".
D [14/Dec/2015:10:45:07 +] Calling CreateProfile(EPSON-Usb-RGB..,temp)
W [14/Dec/2015:10:45:07 +] CreateProfile failed:
org.freedesktop.ColorManager.AlreadyExists:profile id 'EPSON-Usb-RGB..' already
exists
I [14/Dec/2015:10:45:07 +] Registering ICC color profiles for "EPSON-Usb".
D [14/Dec/2015:10:45:07 +] Calling CreateDevice(cups-EPSON-Usb,temp)
D [14/Dec/2015:10:45:07 +] Created device
"/org/freedesktop/ColorManager/devices/cups_EPSON_Usb".
D [14/Dec/2015:10:45:07 +] Calling FindDeviceById(cups-EPSON-Wireless)
D [14/Dec/2015:10:45:07 +] Calling
DeleteDevice(/org/freedesktop/ColorManager/devices/cups_EPSON_Wireless)
D [14/Dec/2015:10:45:07 +] Using profile ID "EPSON-Wireless-Gray..".
D [14/Dec/2015:10:45:07 +] Calling CreateProfile(EPSON-Wireless-Gray..,temp)
W [14/Dec/2015:10:45:07 +] CreateProfile failed:
org.freedesktop.ColorManager.AlreadyExists:profile id 'EPSON-Wireless-Gray..'
already exists
D [14/Dec/2015:10:45:07 +] Using profile ID "EPSON-Wireless-RGB..".
D [14/Dec/2015:10:45:07 +] Calling CreateProfile(EPSON-Wireless-RGB..,temp)
W [14/Dec/2015:10:45:07 +] CreateProfile failed:
org.freedesktop.ColorManager.AlreadyExists:profile id 'EPSON-Wireless-RGB..'
already exists
I [14/Dec/2015:10:45:07 +] Registering ICC color profiles for
"EPSON-Wireless".
:
Printer1:-
Nmap done: 1 IP address (1 host up) scanned in 0.53 seconds
george@george-EasyNote-SL51:~$ /usr/lib/cups/backend/snmp
network lpd://192.168.1.68:515/PASSTHRU "Epson Stylus SX420W" "EPSON Epson
Stylus SX420W" "MFG:EPSON;CMD:ESCPL2,BDC,D4,D4PX,ESCPR1;MDL:Epson Stylus
SX420W;CLS:PRINTER;DES:EPSON Epson Stylus
SX420W;CID:EpsonRGB;FID:FXN,DPN,WFA,ETN,AFN,DAN;" ""
george@george-EasyNote-SL51:~$ sudo /usr/lib/cups/backend/dnssd
DEBUG: Querying
"EPSON26E4ED\032\040Epson\032Stylus\032SX420W\041._printer._tcp.local"...
DEBUG: sent=0, count=1
DEBUG2: query_callback(browser=0x81f8dea8, interfaceIndex=-1, protocol=-1,
event=2,
fullName="EPSON26E4ED\032\040Epson\032Stylus\032SX420W\041._printer._tcp.local",
rrclass=1, rrtype=16, rdata=(nil), rdlen=0, flags=0, context=0x81f8e008)
DEBUG2: query_callback(browser=0x81f8dea8, interfaceIndex=3, protocol=0,
event=0,
fullName="EPSON26E4ED\032\040Epson\032Stylus\032SX420W\041._printer._tcp.local",
rrclass=1, rrtype=16, rdata=0x81f8e354, rdlen=202, flags=4, context=0x81f8e008)
DEBUG2: query_callback: "product=(EPSON Epson Stylus SX420W)".
DEBUG2: query_callback: "rp=auto".
DEBUG2: query_callback: "qtotal=1".
DEBUG2: query_callback: "ty=EPSON Epson Stylus SX420W".
DEBUG2: query_callback: "adminurl=http://EPSON26E4ED.local:80/;.
DEBUG2: query_callback: "pdl=raw".
DEBUG2: query_callback: "usb_MFG=EPSON".
DEBUG2: query_callback: "usb_MDL=Epson Stylus SX420W".
DEBUG2: query_callback: "txtvers=1".
DEBUG2: query_callback: "mac=00:26:AB:26:E4:ED".
network dnssd://EPSON26E4ED%20(Epson%20Stylus%20SX420W)._printer._tcp.local/
"EPSON Epson Stylus SX420W" "EPSON26E4ED (Epson Stylus SX420W)"
