A friend of mine is having printer problems. This is what he wrote So, any
ideas?

Printed again this morning and same problem occurred. There are "custom"
settings on my Epson 777 printer. One of these settings is economy which
uses less ink. I tried using that setting today and the same problem
occurred - double spacing of lines that should be single spaced and printing
the upper half the page only. When I place the setting at "automatic"
everything is fine except obviously use more ink