HP 3550 manual Managing supplies, Supplies life

Managing supplies

Using, storing, and monitoring print cartridges can help ensure quality printer output.

Supplies life

The life of the print cartridge depends on usage patterns and the amount of toner that print jobs require. For example, when printing text at 5 percent coverage, an HP print cartridge lasts an average of 4,000 or 6,000 pages, depending on the printer model. (A typical business letter is about 5 percent coverage.)

Cartridge life expectancy is reduced by frequently printing many 1- or 2-page jobs, heavy coverage, and automatic duplexing. At any time, you can verify the life expectancy by checking the print cartridge life. See Checking the print cartridge life for more information.

Approximate replacement intervals for supplies for the

HP Color LaserJet 3550 series printer

The following table lists the estimated replacement intervals for supplies and the printer control panel messages that prompt when to replace each item.

Item	Printer message	Page count	Approximate time
			period1
Black cartridge	REPLACE BLACK	6,000 pages2	6 months
	CARTRIDGE
Color cartridges	REPLACE <COLOR>	4,000 pages2	4 months
	CARTRIDGE
Image Transfer kit	REPLACE	75,000 pages3	60 months
	TRANSFER KIT
Image Fuser kit	REPLACE FUSER KIT	75,000 pages3	60 months

1Approximate life is based on 1,000 pages per month.

2Approximate average A4-/letter-size page count based on approximately 5 percent coverage of individual colors.

3Usage conditions and print patterns may cause results to vary.

To order supplies online, go to http://www.hp.com/support/clj3550.

Approximate replacement intervals for supplies for the

HP Color LaserJet 3700 series printer

The following table lists the estimated replacement intervals for supplies and the printer control panel messages that prompt when to replace each item.

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