Lexmark X950DHE User's Guide PDF Lexmark X950 and XS950 Series

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Menu item Description

NPA Mode

Auto

O

Sets the printer to perform the special processing required for bidirectional

communication following the conventions deﬁned by the NPA protocol

Notes:

• Auto is the factory default setting. Auto sets the printer to examine data,

determine the format, and then processes it appropriately.

• When set to On, the printer performs NPA processing. If the data is not in

NPA format, it is rejected as bad data.

• When set to O, the printer does not perform NPA processing.

• Changing this setting from the printer control panel and then exiting the

menus causes the printer to restart. The menu selection is then updated.

Serial Buer

Auto

3KB to [maximum size allowed]

Disabled

Sets the size of the serial input buer

Notes:

• Auto is the factory default setting.

• Disabled turns o job buering. Any jobs already buered on the disk are

printed before normal processing is resumed.

• The serial buer size setting can be changed in 1‑KB increments.

• The maximum size allowed depends on the amount of memory in the

printer, the size of the other link buers, and whether Resource Save is

set to On or O.

• To increase the maximum size range for the Serial Buer, disable or

reduce the size of the parallel, serial, and network buers.

• Changing this setting from the printer control panel and then exiting the

menus causes the printer to restart. The menu selection is then updated.

Job Buering

O

Auto

Temporarily stores print jobs on the printer hard disk before printing

Notes:

• O is the factory default setting. The printer does not buer print jobs on

the printer hard disk.

• On buers print jobs on the printer hard disk.

• Auto buers print jobs only if the printer is busy processing data from

another input port.

• Changing this setting from the printer control panel and then exiting the

menus causes the printer to restart. The menu selection is then updated.

Protocol

DTR

DTR/DSR

XON/XOFF

XON/XOFF/DTR

XONXOFF/DTRDSR

Selects the hardware and software handshaking settings for the serial port

Notes:

• DTR is the factory default setting.

• DTR/DSR is a hardware handshaking setting.

• XON/XOFF is a software handshaking setting.

• XON/XOFF/DTR and XON/XOFF/DTR/DSR are combined hardware and

software handshaking settings.

Understanding the printer menus 160

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Lexmark X950DHE

User's Guide PDF Lexmark X950 and XS950 Series - Page 160