SATO GL4XXE manual To 16 Kbytes in 1 kbyte increments, Busy for too long, Disable is not used

	Unit 4: Printer Configuration
	PARALLEL INTERFACE MODE (TABLE 4-5)
MENU	DESCRIPTION
	Is the menu selection screen for the Parallel Port option of the INTERFACES mode.

Parallel Port

Port Type

	This menu allows selection of the type of printer parallel port interface to be used with the host.
	IEEE1284 is the default and the only option applicable to the parallel interface.
Port Type
IEEE 1284*
	This menu configures the amount of memory allocated for the parallel port buffer. The range is 1
	to 16 Kbytes in 1 kbyte increments.
Buffer Size in K	Note: If a baud rate 19200 or greater is selected, the Buffer Size in K parameter may need to be
16*
	increased from the default to 16 Kbytes to improve performance.
	The factory default is 16.
	This feature is used to prevent a host computer from timing out because the parallel interface is
	busy for too long.
Auto Trickle	• Enable - factory default. When the printer’s buffers are almost full, the printer begins to trickle
Disable*
	data in from the host (at the rate set in the Trickle Time menu) until the buffers start to empty.
	• Disable - is not used.
	When the printer is printing data from a host and a second job is recieved by the printer from a
	different host, Trickle Time prevents the second host from timing out while waiting for its data to
	be printed. In order to support this feature, the port has to be able to accept data from the host
	and store it for future use.
	For example, the printer is printing a job from the serial port and then receives a second print job
Trickle Time
1/4 sec*	from the parallel port, the data from the parallel port will trckle bit by bit into the print buffer to
	prevent a timeout error from being sent back to the host connected to the parallel port.
	The selected value should be less than the host timeout value, but not too much shorter or else
	the printer fills up its buffer too fast. This function is applicable for C/T hotport.
	The options are 1/4, 1/2, 1, 2, 4, 8, and 16 seconds and Off. The factory default is 1/4.
	This is the value used by the printer to time out from the current port and check the other selected
	Port Types for data print. When the printer has not received data from the host after a certain
Timeout
	period of time, it must timeout in order to service other ports.
10 sec.*
	The factory default of 10 seconds with an allowable range of 1 to 60 seconds.
	When a fault condition occurs in the printer, normally only the active port reports the fault to the
	host. Whe the Report Status menu option is enabled, the port will report any fault even when it is
Report Status
	not the current, active port.
Disable*
	The options are Disable and Enable. The factory default is Disable.
	Is a menu subset of the IEEE1284 option. Will move into the Prime Signal menu to enable or
	disable the option.
IEEE 1284
Prime Signal
	Is a normally low signal on the parallel port. When initiated, it is designed to reset the parallel port
	and clear the printer buffer.
Prime Signal
	• Disable - factory default. No action when the signal is initiated by the host.
Disable*
	• Enable - reboots interface and clears the printer buffer when the signal is asserted.

GL408-412e Operator’s Manual 4-46