HP Color LaserJet 5550 Printer series - Manual (Page 147)

Print cartridge storage
Do not remove the print cartridge from its package until you are ready to use it.
CAUTION To prevent damage to the print cartridge, do not expose it to light for more than a few
minutes.
Print cartridge life expectancy
The life of the print cartridge depends on usage patterns and the amount of toner that print
jobs require. Usage conditions and print patterns may cause actual results to vary.
At any time, you can verify the life expectancy by checking the toner level, as described
below.
Approximate replacement intervals for supplies
The following table lists the estimated replacement intervals for supplies and the control
panel messages that prompt when to replace each item. Usage conditions and print patterns
may cause results to vary.
Item Printer message Page count Approximate time
period
1
Color cartridges REPLACE BLACK
CARTRIDGE
REPLACE <COLOR>
CARTRIDGE
13,000 pages 2
12,000 pages 2
3.25 months
3 months
Image Transfer kit REPLACE
TRANSFER KIT 120,000 pages 40 months
Image Fuser kit REPLACE FUSER KIT 150,000 pages 50 months
1 Approximate life is based on 4,000 pages per month.
2 Approximate average A4-/letter-size page count based on approximately 5 percent
coverage of individual colors.
To order supplies online, go to http://www.hp.com/supplies/clj5550 .
You can use the HP Toolbox or the embedded Web server to order supplies. For more
information, see
hp toolbox and Using the embedded Web server .
ENWW Managing the print cartridge 133