Epson C824431 Manual Del Usario página 16

Table 7. Flag polarity selection
Jumper
JNOR
J2
JREV
Note
Either the JNOR or JREV jumper must be connected.
MARK (do not
accept data) =
ON
Current ON
MARK (do not
OFF
accept data) =
Negative EIA level
Function
OFF
ON
12
MARK (do not
accept data) =
Current OFF
MARK (do not
accept data) =
Positive EIA level