HP and 8150 MFP manual Appendix B Control Panel Menus 459

Appendix B Control Panel Menus			459
Item	Values	Explanation
I/O BUFFER	10K and up	This item appears only when I/O BUFFER=ON. Specify the
SIZE=100K		amount of memory for I/O buffering. The maximum
		amount of memory available for I/O buffering is
		determined by the amount of memory installed in the
		printer, the languages installed in the printer, and by
		other memory allocations that must be made.
		Press - VALUE + to change settings by increments of 10
		(up to 100 KB) or by increments of 100 (above 100 KB).
PARALLEL HIGH	YES	Select the speed at which data is transmitted to the
SPEED=YES	NO	printer.
		YES: The printer accepts faster parallel communications
		used for connections with newer computers.
		NO: The printer accepts slower parallel communications
		used for connections with older computers.
PARALLEL ADV	ON	Turn the bidirectional parallel communication on or off.
FUNCTIONS=ON	OFF	The default is set for a bidirectional parallel port
		(IEEE-1284).

This setting allows the printer to send status readback messages to the computer. (Turning the parallel advanced functions on might slow language switching.)

I/O Menu