Lexmark 840dn - W B/W Laser Printer Manual page 33

Menu selection Purpose
PS SmartSwitch Configures the printer so it automatically
switches to PostScript emulation when a
print job received through the parallel
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.
Parallel Buffer Configures the size of the parallel input
buffer.
Note: Changing this menu item
automatically resets the printer.
Job Buffering Temporarily stores jobs on the printer
hard disk before printing.
Note: Changing this menu item
automatically resets the printer.
Advanced Status Enables bidirectional communication
through the parallel port.
Protocol Specifies the parallel interface protocol.
Honor Init Determines whether the printer honors
hardware initialization requests from the
computer. The computer requests
initialization by activating the INIT signal
on the parallel interface. Many personal
computers activate the INIT signal each
time the computer is turned on and off.
Using printer menus
Values
On*
Off
On
Off
Auto*
Disabled
Auto*
3K to maximum
size allowed
Off*
On
Auto
Off
On*
Standard
Fastbytes*
Off*
On
33
Printer examines data on the parallel
interface and selects PostScript emulation
if the data indicates that is the required
printer language.
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.
Disables job buffering. Any jobs already
buffered on the disk are printed before
normal processing of incoming jobs
resumes.
Printer automatically calculates the Parallel
Buffer size (recommended setting).
User specifies the Parallel Buffer size. The
maximum size depends on the amount of
memory in the printer, the size of the other
link buffers, and whether Resource Save is
set to On or Off. To maximize the range for
the Parallel Buffer size, disable or reduce
the size of the serial and USB buffers.
Does not buffer print jobs to the hard disk.
Buffers print jobs to the hard disk.
Buffers print jobs only if the printer is busy
processing data from another input port.
Disables parallel port negotiation.
Enables bidirectional communication
through the parallel interface.
May resolve some parallel interface
problems.
Provides compatibility with most existing
parallel interface implementations
(recommended setting).
Printer does not honor hardware
initialization requests from the computer.
Printer honors hardware initialization
requests from the computer.