Lexmark C935 manual 106

Menu item	Description
Serial Protocol	Selects the hardware and software handshaking settings for the serial port
DTR	Notes:
DTR/DSR
	•	DTR is the factory default setting.
XON/XOFF
	•	DTR/DSR is a hardware handshaking setting.
XON/XOFF/DTR
	•	XON/XOFF is a software handshaking setting.
XONXOFF/DTRDSR
	•
		XON/XOFF/DTR and XON/XOFF/DTR/DSR are combined hardware and
		software handshaking settings.
Robust XON	Determines whether or not the printer communicates availability to the
On	computer
Off	Notes:
	•	Off is the factory default setting.
	•	This menu item applies only to the serial port if Serial Protocol is set to
		XON/XOFF.
Baud	Specifies the rate at which data can be received through the serial port
1200	Notes:
2400
	•	9600 is the factory default setting.
4800
	• 138200, 172800, 230400, and 345600 baud rates are only displayed in the
9600
		Standard Serial menu. These settings do not appear in the Serial Option
19200
		1, Serial Option 2, or Serial Option 3 menus.
38400
57600
115200
138200
172800
230400
345600
Data Bits	Specifies the number of data bits that are sent in each transmission frame
7	Note: 8 is the factory default setting.
8
Parity	Sets the parity for serial input and output data frames
Even	Note: None is the factory default setting.
Odd
None
Ignore
Honor DSR	Determines whether the printer uses the DSR Signal. DSR is a handshaking
On	signal used by most serial cables.
Off	Notes:
	•	Off is the factory default setting.
	•	The serial port uses DSR to distinguish data sent by the computer from
		data created by electrical noise in the serial cable. The electrical noise can
		cause stray characters to print. Select On to prevent stray characters from
		printing.

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