

The problem is that Adobe apps do not play friendly with PDF workflows. To assist with this HP created a PDF workflow called HP Print Preview. With the LFP devices laying a document out on roll feed paper can be tricky. The large format arena is different than standard office printing. I think the issue issue you are running into may be application dependent. Here is a reply by a very helpful person on the HP wide-format forum which gets close to identifying the problem, and resolving the issue : If anyone has had experience with this, please let us know. HP claims now that this is an Adobe issue. ThreeHP technicians and many phone calls, and every print configuration that we tried, we cannot print from Adobe Acrobat in landscape mode. There is no 'Finishing' option as there is when printing from Autocad or Preview. The auto portrait/landscape option is checked. And the typical landscape mode, or auto portrait/landscape modes in the main window do not work. When printing with Acrobat, the 'Finishing' tab is not available. See 'autorotate' is checked under Finishing option: Finally today, a third technician discovered that we could print in landscape mode from Autocad and Preview both of these programs have a print dialogue that has an option called 'Finishing' under this tab, you can click 'Autorotate' (not the same 'autorotate' as in the main print window) and print in landscape mode. The problem has been trouble-shot thoroughly by HP.
HP PRINTERS FOR MAC SIERRA DRIVER
Since we purchased the printer five weeks ago, we have been trying every possible option (factory resets, changing paper brand, changing hardware components, many driver re-installs) to print in landscape mode. And our Adobe apps are latest version from Adobe Creative Cloud. Most of our computers are Macs running Sierra.

We have a brand new HP DesignJet T930 which is a 36" wide-format printer.
