You want to print an A4 landscape saddle stitch booklet.
Let's make sure we use the same terminology here:
Landscape means a format which is wider than it's tall.
A4 landscape has the dimensions 297 x 210 mm.
Saddle stitch is a binding method where you print properly imposed spreads, layer the printed sheets on top of each other, stitch the sheets together, fold the sheets on the middle along the spine and finally cut the booklet down to the trim size.
I don't think the problems you are facing has anything to do with any setting in InDesign or on your printer. Most home or office printers simply can't print on sheets large enough for this to work.
Including bleed, the width of the spreads you want to print is 3 + 297 + 297 + 3 = 600 mm, and the height is 3 + 210 + 3 = 216 mm.
Let's try to overlay the common paper formats:
As you see, the smallest paper format which is large enough to contain the spreads including bleed is SRA2 (640 x 450 mm). Many home printers can only print A4, office printers can often print up to SRA3, but to print larger than that, you probably need to go to a commercial print shop.
So in my opinion you have the following options:
If you have a little money: Order a print from a commercial print shop. This is easy. You just deliver a single page PDF and receive a finished A4 landscape saddle stitch booklet.
If you have access to a printer which can print on SRA4, A3 or SRA3: Print single pages front/back and cut them to the trim size. Find another way to bind them. For example stitch them from the the front, find a place to make a wire-o or use a some kind of plastic spine from an office supply store.
If you only have access to a printer which can print on A4: Print at slightly reduced size to be able to include the bleed and do as above.