KERN AEJ-C Series Operating Instruction page 246

Print related variables:
Printout of 1 character "/" i.e. in order to print out 1 character
\\
/, two // must be entered)
CRLF (carriage return line feed)
\C
line beginning next line
CR (carriage return)
\R
line beginning
LF (line feed) next line
\N
tabulator
\T
Paper feed (for PCL printers)
\F
End character string
\0
Cut paper for EPSON printer
%E
These variables must be entered in UPPER CASE.
The connection of a PC keyboard via USB interface makes the entry easier.
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AEJ-C/AES-C/PLJ-C-BA-e-1621