Toshiba 281c/351c/451c manual Display does not change when buttons or icons are pressed

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.42 “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.
When the use of the equipment	Key in the correct department	P.35 “When department or user
is managed under department	code.	management is used”
management, is the correct
code entered?
When the use of the equipment	Enter the user information cor-	P.35 “When department or user
is managed under user man-	rectly.	management is used”
agement, is the correct informa-
tion entered?
Is the “Warming up” message	Wait until the equipment	P.34 “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.359 “4.Copying Function
be combined set together?	nation and image quality adjust-	Combination Matrix”,	P.361
	ment combination matrices, and	“5.Image Quality Adjustment Com-
	then set them again.	bination Matrix”

11
	Image density is too low
	Item to be checked	Countermeasure		Reference page
	Is the message to replace the	Replace the toner cartridge.	P.276	“3.Replace Toner Car-
	toner cartridge displayed on the		tridge Symbol”
	touch panel?
	Is the level of the colour adjust-	Use the manual density buttons	P.121	“7.Copy Density Adjust-
	ment set suitably?	or the background adjustment	ment”,	P.127 “4.Background
		function to adjust the image	Adjustment”
		density properly.

344 11.MAINTENANCE