Lexmark 20G0100 - T 640 B/W Laser Printer Manual page 34

Parallel and Parallel <x>
Use this menu selection to change printer settings affecting jobs sent to the printer through a parallel port (either Std
Parallel or Parallel <x>).
Menu selection Purpose
PCL SmartSwitch Configures the printer so it
automatically switches to
PCL emulation when a print
job received through the
parallel 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
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.
Using printer menus
Values
On*
Off
On*
Off
On
Off
Auto*
Disabled
Auto*
3K to maximum
size allowed
Off*
On
Auto
34
Printer examines data on the parallel
interface and selects PCL emulation if
the data indicates that is the required
printer language.
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.
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.
Printer performs NPA processing. If
data is not in NPA format, it is rejected
as bad data.
Printer does not perform NPA
processing.
Printer examines data, determines the
format, and then processes it
appropriately.
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.