Re: HP Deskjet 2700 and CUPS

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

El 9 de abril de 2026 1:02:02 CEST, Steve Rikli <sr%genyosha.net@localhost> escribió:
>On Wed, Apr 08, 2026 at 07:37:04PM -0300, Isac Monção wrote:
>> Hy everyone,
>> 
>> I have an HP printer, and although NetBSD recognizes it as connected to
>> a USB port, CUPS only recognizes the network address.
>> 
>> I can use the printer via the network address but I would
>> like to know if anyone knows of any way(if there is one) to make CUPS
>> recognize the
>> USB port where my printer is connected.
>
>IME USB printing can be a bit finicky sometimes, I usually prefer network
>printers if possible.
>
>That said, a couple things to try:
>
>1. perms/owners on /dev/ulpt*
>
>  wiki <https://wiki.netbsd.org/tutorials/how_to_setup_cups_in_netbsd/>
>  suggests 'chown lp /dev/ulpt0', but you may need to experiment
>
>2. try ugen instead of ulpt
>
>  I've seen that suggested in other lists and forums and some folks
>  reported success.
>  E.g. disable ulpt in /boot.cfg with something like:
>    menu=Boot normally:userconf disable ulpt;boot
>  and compare dmesg before & after.
>
>Cheers,
>sr.
>

Hi, I confirm that the second approach works for me in the RPi4. I have the RPi4 as my home network printing with an old HP1430.

Regards 


>
>> cups version
>> ------------
>> cups-2.4.16
>> 
>> uname -a
>> --------
>> NetBSD moncao 11.0_RC2 NetBSD 11.0_RC2 (GENERIC) #0: Wed Mar  4 21:02:00 UTC 2026 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>> 
>> dmesg output
>> ------------
>> ulpt0 at uhub2 port 2 configuration 1 interface 1
>> ulpt0: HP (0x03f0) DeskJet 2700 series (0x1853), rev 2.00/1.00, addr 4,iclass 7/1 
>> ulpt0: using bi-directional mode
>> 
>> lpinfo -v output
>> ----------------
>> network https
>> network lpd
>> network ipps
>> network http
>> network ipp
>> network socket
>> direct hp
>> network beh
>> network socket://192.168.0.16:9100