Lexmark X642e MFP - Manuel (Page 38)

Network/Ports
38
Using MFP menus
Serial <x>
Use these menu items to change printer settings affecting jobs sent to the MFP through an optional serial port.
Menu item Purpose Values and descriptions
PCL
SmartSwitch Configures the MFP so it
automatically switches to PCL
emulation when a print job received
through the serial port requires it,
regardless of the default printer
language. On*
Off
On—The MFP examines the data at
the serial interface and selects PCL
emulation if the data indicates that is
the required printer language.
Off—The MFP does not examine the
incoming data. The MFP 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.
PS SmartSwitch Configures the MFP so it
automatically switches to PostScript
emulation when a print job received
through the serial port requires it,
regardless of the default printer
language. On*
Off
On—The MFP examines the data at
the serial interface and selects
PostScript emulation if the data
indicates that is the required printer
language.
Off—The MFP does not examine the
incoming data. The MFP 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.
NPA Mode Specifies whether the MFP
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 MFP. It is
reset to configure memory, and any
permanent resources, such as fonts
or macros, are lost.
On The MFP performs NPA processing. If
data is not in NPA format, it is rejected
as bad data.
Off The MFP does not perform NPA
processing.
Auto* The MFP examines the data to
determine the format and then
processes it appropriately.
Serial Buffer Configures the size of the serial
input buffer.
Note: Changing the Serial Buffer
menu item automatically resets the
MFP. Any permanent resources,
such as fonts or macros, are lost.
Auto* The MFP automatically calculates the
Serial Buffer size (recommended
setting).
3KB to maximum
size allowed
(1KB increments)
The user specifies the Serial Buffer
size. The maximum size depends on
the amount of memory in the MFP, the
size of the other link buffers, and
whether Resource Save is set to On or
Off. To maximize the range for the
Serial Buffer size, disable or reduce
the size of the parallel and USB
buffers.
Serial Protocol Selects the hardware and software
handshaking values for the serial
interface. DTR* Hardware handshaking
DTR/DSR Hardware handshaking
XON/XOFF Software handshaking
XON/XOFF/DTR Combined hardware and software
handshaking
XONXOFF/DTRDSR Combined hardware and software
handshaking