Thank you all appreciated. But I'm still trying avoiding 'over thinking'. I assumed by what you inferred previously that I shouldn't touch driver settings.
But this is becoming cyclic.
The current page settings must have been set from when I last did a print. But this is precisely what I meant by the various defaults and settings. Setting a paper size bigger than needed will just waste paper. So if my one print is 15 x 20 and I have A1 already in the defaults somewhere this is what gets churned out, wasting half the A1 page. But if I set page size as mentioned, it isn't enough. But it least it told me. But setting 24 x 16, my print will cut the paper just about at 16 and not 33 or what ever and wasting half a sheet.
So say as in your example I have several images I want to print, all at once, one after the other. Each has different sizes and profiles i.e. landscape. What paper size do I set, and where? In properties when printing or properties default? So if I set them all as the same paper size clearly the larger landscape 24 x 30+ won't fit to the page.
I began to think the program would take care of these dilemmas. That as clever as the programme is, it would 'tell' my printer driver my (total) image size is the sum of the images I have in the queue. And cut the paper appropriately. Or am I expecting too much.
So it seems that although I dont need to set any defaults in my printer driver, I still have to do most of the work and choose the most appropriate size options for each job.
Sorry if this is my fundamental stupidity or perhaps touching on an area people manage instinctively, but it seems to be perhaps an area that might be improved upon to make life a little easier. At least for idiots like me.