I printed one of my photos, and I found it has some artifacts, such as horizontal lines running through the sky. This is most apparent above the pylon (to the right of the train). There's a horizontal line running all the way from the right of the photo to the left, where it meets the top of the train:
The sky also seems to have a texture of its own, which it doesn't in the original:
This is on a laser printer (Ricoh Aficio MP C2051 / C2551), on ordinary office paper (GSM 75 or so). I printed at the best settings: highest DPI available (1200), toner saving off, image smoothing off, and gradation fine (rather than fast).
I found a question on photo.SE that said that office laser printers are not meant for printing photos, so I tried again, this time on an inkjet printer (HP Desktop Ink Advantage 3525), but it wasn't any better. This time, there are bright dots in the sky, and the sky stil has a texture :
Why am I seeing these lines, dots and texture? What do I have to do to better reproduce the original? Is it a more a limitation of the paper or the printers?