Toshiba 720 Display does not change when buttons or icons are pressed, Functions cannot be set

2.Simple Troubleshooting (Cont.)

Display does not change when buttons or icons are pressed

Item to be checked	Countermeasure		Reference page
Is the equipment in the energy	Press the [ENERGY SAVER] or	P.33	“3.Energy Saving Mode”
saving mode (Automatic energy	[START] button on the control
saving mode)?	panel to clear the mode. (It
	takes a while for the equipment
	to become ready.)
Is the power OFF because the	Press the [START] button to	See the [User Function Guide]
weekly timer functions?	return the power ON.
Is the department code keyed	Key in the correct department	P.29	“When controlling use of
in?	code.	equipment with department codes”
Is the “Warming up” message	Wait until the equipment	P.29	“Turning power on”
displayed?	becomes ready.

Functions cannot be set

Item to be checked	Countermeasure	Reference page
Are there functions that cannot	See the copying function combi-	P.329 “4.Copying Function
be combined set together?	nation and image quality adjust-	Combination Matrix”
	ment combination matrices and
	set again.

Image density is too low

	Item to be checked	Countermeasure		Reference page
	Has the message “Install new	Replace the toner cartridge.	P.264	“Toner cover symbol”
11	toner cartridge” appeared on the
	screen?
	Is the image density or back-	Use the manual density buttons	P.107	“6.Copy Density Adjust-
	ground adjustment set lighter	or the background adjustment	ment”,	P.110 “1.Background
	than standard?	function to adjust the image	Adjustment”
		density properly.

Image density is too high

Item to be checked	Countermeasure		Reference page
Is the image density or back-	Use the manual density buttons	P.107 “6.Copy Density Adjust-
ground adjustment set darker	or the background adjustment	ment”,	P.110 “1.Background
than standard?	function to adjust the image	Adjustment”
	density properly.

318 11.MAINTENANCE