Lexmark C912 User's Reference - Page 86

NPA Mode, Parity, RS-232/RS, RS-422, SmartSwitch, Network Printing Alliance NPA

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Using printer menus Menu Item NPA Mode Parity RS-232/RS422 Purpose To specify 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. To select the parity for serial input and output data frames. Designates the serial communication configuration: RS232 or RS422. Values On Off Auto* Even Odd None* Ignore =RS-232* =RS-422 RS-422 Polarity This allows the user to specify the RS-422 polarity if RS-422 communications is active for the serial port. Note: Only displayed if the port supports an RS-422 configuration, For example, the physical port hardware supports RS-422. Note: Only displayed when the RS-232/RS-422 port printer setting is set to RS-422. =Normal* =Reverse PCL To configure the printer so it On* SmartSwitch automatically switches to PCL emulation when a print job received through the serial port requires it, regardless of the default printer language. 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 the data to determine the format and then processes it appropriately. Printer examines data on the serial 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. Serial Menu 81

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Using printer menus
Menu Item
Purpose
Values
NPA Mode
To specify 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.
On
Printer performs NPA processing.
If data is not in NPA format, it is
rejected as bad data.
Off
Printer does not perform NPA
processing.
Auto*
Printer examines the data to
determine the format and then
processes it appropriately.
Parity
To select the parity for serial input
and output data frames.
Even
Odd
None*
Ignore
RS-232/RS-
422
Designates the serial
communication configuration:
RS232 or RS422.
=RS-232*
=RS-422
RS-422
Polarity
This allows the user to specify the
RS-422 polarity if RS-422
communications is active for the
serial port.
Note:
Only displayed if the port
supports an RS-422 configuration,
For example, the physical port
hardware supports RS-422.
Note:
Only displayed when the
RS-232/RS-422 port printer setting
is set to RS-422.
=Normal*
=Reverse
PCL
SmartSwitch
To configure 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.
On*
Printer examines data on the serial
interface and selects PCL
emulation if the data indicates that
is the required printer language.
Off
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.
Serial Menu
81