Tim:
I am running Centos 7 and have weirdness with my HP printer. My original
printer, which worked single and double sided perfectly with the
pre-installed hplip, died and I had to get a new printer whose driver
was unknown to hplip on Centos 7. I am away from my system so I have to
rely on memory that I was on 3.15.9 and had to go to 3.18.5. When I did
the setup, it would not let me configure to do double-sided even though
the printer is capable of such (HP ENVY 7855 if my memory is correct).
But I could tell Firefox and Thunderbird that I wanted double-sided in
the setup. It gives warning but it works. The odd thing is that it will
always print double-sided even if the number of pages is only one. Its a
blank side, but I have to wait for side one to dry and then go back
through the printer which is wear on the doubled-side mechanism in the
hp printer)
This is a different problem than yours (I think) but I thought I would
mention it as it is similar regarding issues with single vs double.
Maybe things will be better behaved on Centos 8 and whatever hplip wt al
it ships with (and, hence, tested against)
Paul
On 10/9/19 2:26 PM, Tim via users wrote:
Hi,
I have a LAN using CentOS and Fedora installations (currently its
CentOS 7 on the server). At times it insists on doing double-sided
printing, and will not let me choose single-side. Erratically the
option is either unavailable (the drop down menu is not clickable, and
says "not available"); or when the option is responding, my selection
is ignored; and some days it works properly. The printer is a HP
LaserJet P3015. I get this erratic behaviour on any of the PCs, and it
used to do this, too, when the server was previously a Fedora install.
Anybody have any clues?
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