Lexmark 840dn - W B/W Laser Printer Manual page 34

Menu selection Purpose
Parallel Mode 2 Determines whether the parallel port
data is sampled on the leading or trailing
edge of strobe.
Mac Binary PS Configures the printer to process
Macintosh binary PostScript print jobs.
Serial <x>
Use this menu selection to change printer settings affecting jobs sent to the printer through an optional serial port.
Menu selection Purpose
PCL SmartSwitch Configures the printer so it automatically
switches to PCL emulation when a print
job received through the serial port
requires it, regardless of the default
printer language.
PS SmartSwitch Configures the printer so it automatically
switches to PostScript emulation when a
print job received through the serial port
requires it, regardless of the default
printer language.
NPA Mode Specifies whether the printer performs
the special processing required for
bidirectional communication, following
the conventions defined in the Network
Printing Alliance (NPA) Protocol.
Note: Changing this menu item
automatically resets the printer.
Using printer menus
Values
On*
Off
On
Off
Auto*
Values
On*
Off
On*
Off
On
Off
Auto*
34
Samples parallel port data on the leading
edge of strobe.
Samples parallel port data on the trailing
edge of strobe.
Printer processes raw binary PostScript
print jobs from computers using the
Macintosh operating system.
Note: This setting often causes Windows
print jobs to fail.
Printer filters PostScript print jobs using
standard protocol.
Printer processes print jobs from
computers using either Windows or
Macintosh operating systems.
On*—The printer examines the data at the
serial interface and selects PCL emulation
if the data indicates that is the required
printer language.
Off—The printer does not examine the
incoming data. The printer uses PostScript
emulation to process the job if PS
SmartSwitch is On, or uses the default
printer language specified in the Setup
Menu if PS SmartSwitch is Off.
On*—The printer examines the data at the
serial interface and selects PostScript
emulation if the data indicates that is the
required printer language.
Off—The printer does not examine the
incoming data. The printer uses PCL
emulation to process the job if PCL
SmartSwitch is On, or uses the default
printer language specified in the Setup
Menu if PCL SmartSwitch is Off.
All data received by the printer must be in
NPA packets. Any non packet data received
will be rejected as bad.
The printer will not perform any NPA
processing.
Printer examines the incoming data to
determine the format. If the incoming data
is not NPA packets, the information is
passed to the printer as non-NPA.