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HP Officejet Pro and Business Inkjet Printers
Model specifications, schematic and memory map
•Shaded rows indicate variations between models.
•See page 79 for complete specifications and comparisons to other HP Officejet Pro Printers.
Supplies and accessories
See pages 314–317 for additional information on paper-handling solutions. Please see the November 2005 Supplies IRG for complete
supplies information (4AA0-0791ENUC).
Ink
•HP 88 Ink Cartridge:
Black C9385AN
Cyan C9368AN
Magenta C8387AN
Yellow C9388AN
•HP 88 Large Ink Cartridge
Black C9396AN
Cyan C9391AN
Magenta C9392AN
Yellow C9393AN
•HP 88 Black/Yellow Printhead C9381A
•HP 88 Magenta/Cyan Printhead C9382A
Media
•HP Premium Presentation Paper,
matte, letter (150 sheets) Q5449A
•HP Brochure and Flyer Paper,
glossy, letter (150 sheets) Q1987A
•HP Brochure and Flyer Paper,
matte, letter (100 sheets) Q5445A
•HP Tri-Fold Brochure Paper,
glossy, letter (100 sheets) C7020A
Paper-handling accessories
•350-Sheet Input Tray C8256A
•Automatic Two-Sided Printing
Accessory C8255A
Cables
•USB Cable, A-B, 2-Meter C6518A
HP Officejet Pro K550 series
Rear view
Front view
(K550dtwn shown)
Tray 2
350-sheet
Control
panel
USB port
AC power
Ethernet port
Automatic
two-sided printing
accessory
Built-in USB
Output
tray
Ink cartridge
access
Tray 1
250-sheet
Model Number K550 K550dtn K550dtwn
Product Number C8157A C8158A C8159A
Print Speed Black:
1
Draft Quality
Normal Quality
Best Quality
Up to 37 ppm
Up to 16 ppm
Up to 2.4 ppm
Up to 37 ppm
Up to 16 ppm
Up to 2.4 ppm
Up to 37 ppm
Up to 16 ppm
Up to 2.4 ppm
Duty Cycle, Monthly
7,500 pages 7,500 pages 7,500 pages
Paper Trays, Std 1 2 2
Paper Trays, Max
222
Input Capacity, Std 250 sheets 600 sheets 600 sheets
Input Capacity, Max
600 sheets 600 sheets 600 sheets
Output Capacity, Std
150 sheets 150 sheets 150 sheets
Envelope Input, Std
30 30 30
Media Types
Paper (plain, inkjet, photo), envelopes,
brochure paper, transparencies,
labels, cards (index, greeting)
Paper (plain, inkjet, photo), envelopes,
brochure paper, transparencies,
labels, cards (index, greeting)
Paper (plain, inkjet, photo), envelopes,
brochure paper, transparencies,
labels, cards (index, greeting)
Media Sizes, Std
Letter, legal, statement, executive,
envelopes (No. 10, Monarch)
Letter, legal, statement, executive,
envelopes (No. 10, Monarch)
Letter, legal, statement, executive,
envelopes (No. 10, Monarch)
Media Sizes, Custom
3 × 5 in to 8.5 × 14 in 3 × 5 in to 8.5 × 14 in 3 × 5 in to 8.5 × 14 in
Two-Sided Printing Automatic (optional) Automatic (standard) Automatic (standard)
Memory, Std
32 MB 32 MB 32 MB
Memory, Max
32 MB 32 MB 32 MB
Connectivity, Std Hi-Speed USB 2.0 port Hi-Speed USB 2.0 port, built-in wired
Ethernet networking
Hi-Speed USB 2.0 port, built-in wired
Ethernet networking, built-in wireless
802.11b/g networking
Connectivity, Opt
HP Jetdirect external and wireless
print servers
HP Jetdirect external and wireless
print servers
HP Jetdirect external and wireless
print servers
Print Quality:
Black Best
Color Best
Up to 1200 × 1200 dpi
Up to 4800 × 1200 optimized dpi
(on HP Premium Photo Paper with
1200 input dpi)
Up to 1200 × 1200 dpi
Up to 4800 × 1200 optimized dpi
(on HP Premium Photo Paper with
1200 input dpi)
Up to 1200 × 1200 dpi
Up to 4800 × 1200 optimized dpi
(on HP Premium Photo Paper with
1200 input dpi)
Dimensions (W × D × H) 19.5 × 22.8 × 8.4 in 19.5 × 26 × 11.9 in 19.5 × 26 × 11.9 in
Print Technology
HP Thermal Inkjet HP Thermal Inkjet HP Thermal Inkjet
Print Cartridges
4 (1 each black, cyan, magenta,
yellow), optional large sizes
4 (1 each black, cyan, magenta,
yellow), optional large sizes
4 (1 each black, cyan, magenta,
yellow), optional large sizes
Printheads
2 (1 each black/yellow, magenta/cyan) 2 (1 each black/yellow, magenta/cyan) 2 (1 each black/yellow, magenta/cyan)
Technology, Color
Colorsmart III Colorsmart III Colorsmart III
Print Languages, Std
PCL3, PCL3GUI PCL3, PCL3GUI PCL3, PCL3GUI
Print Speed Color:
1
Draft Quality
Normal Quality
Best Quality
Up to 33 ppm
Up to 16 ppm
Up to 2.4 ppm
Up to 33 ppm
Up to 16 ppm
Up to 2.4 ppm
Up to 33 ppm
Up to 16 ppm
Up to 2.4 ppm
1
Approximate figures. Exact speeds will vary depending on the system configuration, software program and document complexity.