HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 127)

126 6 Maintaining the Printer EN
For an explanation of printer control panel messages, see chapter 7 ,
“ Printer Control Panel Messages .”
Consumable Printer Message Page Count
Approximate Time
Period
a
Black Toner Cartridge TONER LOW
REPLACE BLACK 17,000 pages
b
2.5 months
Color Toner Cartridges
Cyan
Magenta
Yellow
TONER LOW
REPLACE <color> 8,500 pages
b
1.1 to 1.6 months
Drum Kit
Imaging Drum
Air Filters (2)
Hand Wipe
DRUM LIFE LOW
REPLACE DRUM KIT 50,000
black-and-white only
pages, or
12,500 color pages
c
8.3 months
black-and-white only
pages, or 2.1 months
color pages
Transfer Kit
Transfer Drum
Transfer Belt
Transfer Charger
Cleaning Roller
Charcoal Filter
Hand Wipe
TRANSFER KIT LOW
REPLACE KIT 150,000
black-and-white only
pages, or
75,000 color pages 25 months
black-and-white only
pages, or 12.5 months
color pages
Fuser Kit (110 Volt)
Fuser
Paper Rollers (6)
Hand Wipe
FUSER LIFE LOW
REPLACE KIT 100,000
black-and-white only
pages, or
50,000 color pages 16.7 months
black-and-white only
pages, or 8.3 months
color pages
Fuser Kit (220 Volt)
Fuser
Paper Rollers (6)
Hand Wipe
FUSER LIFE LOW
REPLACE KIT 100,000
black-and-white only
pages, or
50,000 color pages 16.7 months
black-and-white only
pages, or 8.3 months
color pages
a. Approximate life based on printing 6,000 pages per month.
b. Approximate average letter-size page count based on 5% coverage of individual toner colors.
This value can be used to estimate other levels of coverage from 2% to 35%. For example, 5,000
pages at 5% coverage is approximately 2,500 pages at 10% coverage. Estimates made in this
manner are only approximate, and usage conditions and print patterns can cause the results to
vary.
c. Drum life is stated in terms of Letter/A-4-size images. The number of images printed for each
sheet of media varies, depending on the mix of color, duplexing, and large-format printing. An
image is a layer of toner. A Letter-size, color (CMYK) sheet printed on one side contains four
Letter/A4 images. A duplexed sheet (printed on both sides) counts as two images. In color duplex
mode, there are eight Letter-size images per Letter/A4 sheet. An 11 x 17 (or A3) page sheet
contains twice as many Letter-size images as a Letter-size sheet.