Hello Turtle, (BTW, Realname would be appreciated....) Am Samstag, 30. Juli 2022, 19:53:28 CEST schrieb Go Slowly Turtle: <snip>
The printer is a Brother HL-2270DW. I have upgraded to the latest Brother drivers, created a 'new' printer to use, yet the problem persists. I tried printing under Windows 10, which works perfectly, so it does not look like a H/W problem. I have reconfigured cups and the printer using YAST. It still does not work correctly. I have looked in CUPS configuration files but found nothing I could see to be a problem.
To get it to print duplex I have to go to the printer (via IP address and browser) to specifically set duplex mode. Then I have to unset it back afterwards.
I'm using basically the same setup, slightly different Brother printer. Please go to the CUPS management page (localhost:631) select the printer -> Management -> default settings (may be called different, I have german installation :-) Two-sided -> long-edge binding -> Save You may change this in the KDE print dialog as well, but this will not change the default setting. HTH Axel