Oki GL408e GL408e/GL412e User's Guide - Page 82

MENU Parallel Port Port Type Port Type IEEE 1284* Buffer Size in K 16* Auto Trickle Disable* Trickle Time 1/4 sec* Timeout 10 sec.* Report Status Disable* IEEE 1284 Prime Signal Prime Signal Disable* Unit 4: Printer Configuration PARALLEL INTERFACE MODE (TABLE 4-5) DESCRIPTION Is the menu selection screen for the Parallel Port option of the INTERFACES mode. 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. This menu configures the amount of memory allocated for the parallel port buffer. The range is 1 to 16 Kbytes in 1 kbyte increments. Note: If a baud rate 19200 or greater is selected, the Buffer Size in K parameter may need to be 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. • Enable - factory default. When the printer's buffers are almost full, the printer begins to trickle 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 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 period of time, it must timeout in order to service other ports. 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 not the current, active port. 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. Is a normally low signal on the parallel port. When initiated, it is designed to reset the parallel port and clear the printer buffer. • Disable - factory default. No action when the signal is initiated by the host. • Enable - reboots interface and clears the printer buffer when the signal is asserted. GL408-412e Operator Manual 4-46 PN: 9001163A