Fire-Lite PRN-6 Reference-Manual - Manual (Page 65)

This is TOF value adjustment mode. The horizontal bar line is printed by
needle 1 of the head. If you want to change the value, please select with
key
<
or
>
and then press the key Setup.
A new horizontal bar line is printed at the right side of the previous bar. If
you do not want to change, please press the key Exit.
Press the key Exit to finish TOF adjustment mode.
The display changes to:
The printer prints vertical bars with numbers as follows.
Setup
L/R Adj= 00 *
Set < > Exit
Online
3
4
Mechanical adjustments to the printer
3 - 15
BACK QUIT
?