Oki 390 - Manual (Page 70)

ML390/391 Turbo Printer Handbook 63
Pull Tractor, Top-Mount
Used for bottom-feed of labels or heavy
card stock, or in conjunction with the rear-
feed tractor to provide more precise pa-
per control when you’re using multi-part
forms. Includes cover for installation in
place of access cover.
Roll Paper Stand
Adapts ML 390 Turbo printer for use with
roll-type paper (not supplied). Not usable
on ML 391 Turbo.
Includes stand and support. With cable for
connection to printer.
Serial Interface
Includes serial interface board and lock-
ing piece for installation in printer next to
standard parallel interface. Without inter-
face cable.
Note: The use of the locking piece to 390/391
TURBO should be impermissible due to the
exclusiveness for other models.