HP 4550 manual Using printer control panel keys, Using the printer online Help system

	Using printer control panel keys
	The following table summarizes the function of each printer control
	panel key.
Key	Function
GO	Depends on the status of the printer. Normally, GO activates printing using
	current settings or directs the printer to proceed with the process
	designated on the control panel. If the printer is offline, pressing GO will
	return the printer to the READY state.
CANCEL JOB	Terminates the job that is currently printing. The printer completes the
	current page and purges all input until a new job is detected (may take
	several seconds depending on the size of the job).
MENU	Displays a menu system for obtaining printer status information or changing
	the printer’s configuration settings.
ITEM	Cycles through items in the selected menu. Menu items vary depending on
	the options installed and on the configuration of other menu choices. The
	ITEM key is also used to navigate through the printer’s online Help system.
VALUE	Cycles through the value choices for a particular menu item.
SELECT	Selects the value that is currently shown on the display.

	Using the printer online Help system
	This printer features an online Help system that provides instructions
	for resolving most printer errors. Certain control panel error
	messages alternate with instructions on accessing the online Help
	system.
	Whenever a ? appears in an error message, or a message alternates
	with FOR HELP PRESS THE ? KEY, press the right side of the ITEM
	key to navigate through a sequence of instructions.
Note	To exit the online Help system, press either GO or SELECT.

36 Using the printer control panel EN