Color 3750DN
With duplexing and networking built in, the HP Color 3750DN handled the daily color workload of busy departments — two-sided output and shared access made it an office staple. Its toner is the Q2670A black cartridge (HP 308A), carried on this page under the title Compatible HP 309A (Q2670A) Toner Cartridge Black, with 311A color cartridges Q2681A, Q2682A and Q2683A alongside. The black is stocked and exact; color buyers should read the note with the table.
The 3750DN's owners printed the office's real work: two-sided reports by default, shared by a department, expected to simply be ready every morning. Staple machines earn that status by being predictable, and their toner routine is part of the predictability — right codes, spares in place, no surprises at the panel.
Toner Cartridges for Color 3750DN
| Cartridge | Color | Page Yield |
|---|---|---|
| Q2670A | Black | See product page |
| Q2671A / Q2672A / Q2673A — 3 Color Set | Cyan, Magenta, Yellow | See product page |
The color box on this page is the Compatible HP 3550 (Q2671A Q2672A Q2673A) Toner Cartridge 3 Color Set — a 309A set for the 3550 line, stocked here as an also-stocked item. It is not a 3750DN cartridge set. This model colors with the 311A cartridges Q2681A, Q2682A and Q2683A, which are not stocked on this page; order those codes for color.
Which cartridge should you buy?
Two-sided departmental printing makes black the strategic cartridge: it cycles fastest even with duplex savings, and the Q2670A stocked here is the exact fit — keep one spare per machine as standing policy. Color buying for the 3750DN means the 311A codes, Q2681A, Q2682A and Q2683A, swapped one at a time as the panel names them; the 309A set on this page serves the 3550 family only. Departments running mixed generations should treat the code on the cartridge as the only trustworthy label in the supply cabinet. Compatible cartridges here carry a 1-year warranty with 1-year returns.
Chip, toner and everyday use
Shared duplex machines ask little: fit cartridges with seals fully removed, let the machine calibrate, and check levels when you load paper rather than when a job fails. Each cartridge's chip keeps its own count, so the panel can tell you which single color is next — believe it, and leave the others alone. A fading cartridge can be rocked once, gently, to finish a job, but on a department machine the real fix is a stocked shelf: spares sealed, upright, and rotated oldest-first.
Frequently Asked Questions
Which black fits the 3750DN?
The Q2670A — HP's 308A black for this family, and the cartridge stocked on this page. Duplexing and networking do not change the toner specification.
Can the department use the color set listed here?
Not in this machine. That set holds the 309A colors for the 3550 line. The 3750DN's colors are the 311A cartridges Q2681A, Q2682A and Q2683A.
All four cartridges warn within a week of each other — coincidence?
Not really. Cartridges fitted together and worked by the same queue tend to age together. It is a sign the machine is heavily used, not that anything is wrong.
More printers that use the same cartridges
The models below sit in the same cartridge family — useful if you run more than one of them or are comparing a sibling machine:
HP 308A-311A, HP 308A-309A, Color LaserJet 3750N, Color LaserJet 3750DTN, Color LaserJet 3750DN, Color LaserJet 3750, Color LaserJet 3700, Color LaserJet 3550N, Color LaserJet 3550, Color LaserJet 3500dtn, Color LaserJet 3500dn, Color LaserJet 3500N, Color LaserJet 3500, Color 3750N, Color 3750DTN, Color 3750, Color 3700N, Color 3700DTN, Color 3700DN, Color 3700, Color 3550N, Color 3550, Color 3500dtn, Color 3500dn, Color 3500N, Color 3500, COLOR LASERJET 3700N, COLOR LASERJET 3700DTN, COLOR LASERJET 3700DN