Printronix MVP Series - Manual (Page 222)

Routine Service and Diagnostics 9–15
Print
Shift Recycle
Shift Recycle Full Character Set (05.1) prints the full character set across the
width of the paper. The order of the characters remains the same from line to
line but all characters shift one character position to the left for each line.
Double High (05.2) prints 16 lines of elongated characters.