Casio KL-7400 Troubleshooting, 46), The, key, when, poor, text, press, later, print, print, later, Cannot, Symptom, Nothing, Symptom, quality, finished, normally, is dirty

Troubleshooting

Consult the troubleshooting tables below whenever you start to have problems with the printer. If the information here does not solve the problem, initialize printer memory (page 11). Note initialization will cause all data stored in printer memory to be lost. Always keep separate written copies of important information. If memory initialization does not solve the problem, contact your original retailer or nearest authorized CASIO service center.

Symptom		Possible Cause	Recommended Action
Nothing		The display contrast	Adjust the display contrast
appears on		setting needs	setting. (page 46)
the display		adjustment.
when I
	.	The AC adaptor is not	Make sure the AC adaptor is
press
		connected properly.	properly connected.
			(pages 10, 48)
		Battery power is low,	Change to the AC adaptor that
		or the wrong type of	comes with the printer or
		AC adaptor or	replace the current batteries
		batteries are being	with a fresh set of AA-size
		used for power.	alkaline batteries (supplied by
			you). (page 47)
		Batteries are not	Reload the batteries properly.
		loaded properly.	(page 47)
		The print head is	Wait for a while and try again
		overheating.	later.
The printing		Only spaces are input	Input the text you want to
operation is		for the label.	print.
finished
normally,
but nothing
is printed.

Symptom	Possible Cause	Recommended Action
Printing is	The print head or roller	Clean the print head and
not clear.	is dirty.	roller. (page 49)
Printing is
	There is slack in the	Take up the slack in the ink
poor
	ink ribbon.	ribbon and correctly reload the
quality.
		tape cartridge. (page 13)
Printing is
	The tape cartridge is	Re-load the tape cartridge
too light.
	not loaded properly.	properly. (page 13)
	Battery power is low.	Change to AC adaptor power
		or load a fresh set of batteries
		(supplied by you). (page 47)
	Improper print density	Adjust the print density. (page
		46)
Cannot	Battery power is low,	Change to the AC adaptor that
print.	or the wrong type of	comes with the printer or load
	AC adaptor or	a fresh set of AA-size alkaline
	batteries are being	batteries (supplied by you).
	used for power.	(page 47)
	The print head is	Wait for a while and try again
	overheating.	later.
I can't input	The FUNCTION key	Press ESC to cancel the
text.	has been pressed.	FUNCTION key operation.

E50