HP 1220C manual Using and Caring for Print Cartridges, It means To solve the problem

Using and Caring for Print Cartridges

When you open the printer’s access cover, the yellow arrow on the print cartridge cradle aligns to one of the icons near the back of the printer. If the Print Cartridge Status light flashes, open the printer’s access cover and follow the instructions below.

If the arrow points to...	It means...		To solve the problem...
Problem with color	The print cartridge		1	Insert print cartridge if there
print cartridge	is either:			is none.
	-	missing	2	Reinsert print cartridge if
	-	improperly		there is one.
			3	If the above do not solve the
		installed
	-	the wrong print		problem, verify the color
				cartridge is an HP C6578
		cartridge for the
Problem with black
		printer		Series cartridge, and the
print cartridge	-	defective		black cartridge is an HP
				51645 Series cartridge.
			4	If the problem persists,
				replace the cartridge.
Color print cartridge	Color print		Consider replacing the color
low on ink	cartridge is running		cartridge with an HP C6578
	low on ink.		Series cartridge.

Black print cartridge	Black print	Consider replacing the black
low on ink	cartridge is running	cartridge with an HP 51645
	low on ink.	Series cartridge.

Print cartridges OK

Print cartridges are operational.

No problems.

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