| Print speed: | 16 ppm black, 4 ppm color |
| Print resolution: | 600x600 dpi |
| Recommended monthly volume: | 35,000 pages |
| Memory: | 128 MB RAM, up to 192 MB |
| Duplex printing: | Standard |
| Paper handling: |
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| Interface: |
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| OS compatibility: |
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| Dimensions: | 23 x 20 x 28 in. |
Toner Cartridges, Maintenance Kits and Parts

14 Items
Cyan Genuine Toner Cartridge Standard Yield, 6,000 pages
Magenta Genuine Toner Cartridge Standard Yield, 6,000 pages
Yellow Genuine Toner Cartridge Standard Yield, 6,000 pages
Genuine Fuser (Fixing) Assembly 110 volt
Genuine Transfer Kit Standard Yield, 100,000 (b/w) or 25,000 (c)
Genuine Fuser Kit Standard Yield, 50,000 pages, 110 volt
Black/Color Genuine Drum Kit Standard Yield, 25,000 (black) or 6,250 (color)
Black Genuine Drum Standard Yield, 25,000 pages
Cyan Remanufactured Toner Cartridge Standard Yield, 6,000 pages
Magenta Remanufactured Toner Cartridge Standard Yield, 6,000 pages
The Color LaserJet 4550dn uses HP C4194A, HP C4192A, HP C4193A, HP C4191A toner cartridges. HP C4194A yields 6000 pages; HP C4192A yields 6000 pages; HP C4193A yields 6000 pages; HP C4191A yields 9000 pages.
The HP C4191A cartridge has an approximate yield of 9000 pages.
Approximate color cartridge yields: HP C4194A (~6000 pages), HP C4192A (~6000 pages), HP C4193A (~6000 pages).
Yes — the Color LaserJet 4550dn uses a replaceable imaging drum: HP C4195A, DPS DPC4500D.
Yes — the replacement fuser for the Color LaserJet 4550dn is: HP C4197A, HP RG5-5154-120.
When the Color LaserJet 4550dn reports "Supply Problem", it usually just can't communicate with one cartridge's chip. Give the printer a full power-cycle, take out and firmly reinsert the flagged cartridge, and lightly buff its metal contacts with a dry, lint-free cloth. If the message stays, install a new cartridge in the reported colour.