Re: Brother MFC-J6720DW

On 9/5/22 10:30, Zdenek Dohnal wrote:
> On 9/5/22 14:49, gene heskett wrote:
>> On 9/5/22 06:01, Zdenek Dohnal wrote:
>>> Hi,
>>>
>>> the device supports Airprint, so I would go for IPP Everywhere, just 
>>> don't use lpd:// connection if you want Airprint to work (needs IPP 
>>> port on the printer to be enabled).
>>>
>> I consider Airprint a huge security hole, just waiting to be abused 
>> by a nearby cel phone. I had
>> a neighbor with such a cel phone.
>
> Do you let a nearby unknown cellphone into your local network? mDNS 
> works by default only in the same network.
>
Let me put it this way, since any such access is not seen locally, it 
only uses my bandwidth
as its fed directly to my circuit by way of the radio in my router. The 
clue was my net bill
which for my use runs about 30G a month, and did not hit my limit which 
is close to a TB
a month, but I noticed that it was up to around 80G a month. So I 
finally found the pw and
logged into dd-wrt to find a strange lease so I bounced him. Back in 5 
seconds, he had
some cracking thing on his cell so his traffic to net surf didn't show 
on his cel bill.
I made a new 25 char pw, bounced him, back in 30 secs. So since I wasn't 
actively using it,
I turned off the radio. I have one of those $100/yr cel phones, normally 
turned off. I keep it
charged so it ready to go if I decide to goto to some kin of my wife for 
a day or 2, something
I can yell for help with if my old ford runs into trouble. Suddenly I 
couldn't keep it charged,
something was turning it on by remote without making a sound locally but 
using up the battery.
I quit trying to keep it charged.

He was a mailman but is now in jail for non-delivery. they raided his 
place and found half a
ton or more of undelivered mail, still in uspo carry bins in his garage. 
So peace has returned
to my locale. But during his reign I had to turn of the radios in 
everything here to keep him out.
At one point he was coming in thru the radio in the rpi4b I run my big 
lathe with. Quite a game
of cat and mouse. In the last couple months I've added a couple rock64's 
to the local net, to
run 3d printers with but I've not enabled either ones wifi. Much saner 
life w/o it. So 100% of
my net is wired. No microphones plugged into any these machines either. 
If some 3 letter
agency wants to hear what I think, let em bring the big truck, easier 
target to hit.


> And in case you don't want to use mDNS, you can still install the 
> printer permanently via IPP port and get the options via IPP as 
> AirPrint can do (however you lose the automatic installation...), so 
> in that case the attacker would have to get into your network and find 
> out printer's IP or hostname (because mDNS doesn't advertise anything).
>
>>
>> Get rid of cups-browsed, and brothers own drivers can use every 
>> feature these printers have,
>> including excellent color re-production on good paper.
>>> IPP device uri you can probably use (if it doesn't work, check your 
>>> printer's manual for proper uri):
>>>
>>> ipp://<IP/hostname>:631/ipp/print
>>>
>>> where <IP/hostname> is printer's IP or its hostname.
>>>
>>> Only if Airprint does not work or its set of options do not match 
>>> your needs, I would recommend using classic Brother driver.
Its options for instance, do not include the choice of which paper tray 
to use, nor does it include using the
color trim options in the ppd. When Mike decides to support the printers 
features, I might consider using
it his way. Until then . . .

I have an advantage over most of you, I've known Mike since the middle 
80's. Long before cups.
>>>
>>>
>>> Zdenek
>>>
>>> On 8/18/22 12:15, Superma wrote:
>>>> Dear all,
>>>>
>>>> I try to make my brother MFC-J6720DW printer running with CUPS on 
>>>> my NEXTCLOUDPI Rasperry.
>>>>
>>>> I have already tried with the following print drivers:
>>>>
>>>>   * Brother MFC-9600
>>>>   * Generic IPP Everywhere Printer
>>>>   * Brother MFC-6550MC
>>>>   * Brother MFC-8300
>>>>   * Brother MFC-9500
>>>>   * Brother DCP-1200
>>>>   * Brother MFC-9840CDW BR-Script3
>>>>
>>>> Everytime I am getting the same  / following result:
>>>>
>>>>  1. Print Test Page
>>>>  2. Testpage is shown on the spool queue:
>>>>  3. Printer is starting and showing "Receving Data"
>>>>  4. Printer goes back to standby without printing anything
>>>>  5. Printjob is removed from the queue:
>>>>
>>>>
>>>> Im am having:
>>>>
>>>>  *
>>>>  *
>>>>  *
>>>>
>>>> What else can I do?
>>>> Do I need a separate printer driver file?
>>>>
>>>> Thank you very much for your help.
>>>>
>>>> Manuel
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Gimp-print-devel mailing list
>>>> [email protected]
>>>> https://lists.sourceforge.net/lists/listinfo/gimp-print-devel
>>>
>>>
>>>
>>> _______________________________________________
>>> Gimp-print-devel mailing list
>>> [email protected]
>>> https://lists.sourceforge.net/lists/listinfo/gimp-print-devel
>>
>>
>> Cheers, Gene Heskett.
>


Cheers, Gene Heskett.
-- 
"There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
  - Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>



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