MFC-J6945DW
The Brother MFC-J6945DW is the highest model number on this platform's official list. It runs the large INKvestment cartridge platform: LC3037 Super High Yield (3,000 pages black / 1,500 per color) below LC3039 Ultra High Yield (6,000 black / 5,000 per color), rated in accordance with ISO/IEC 24711. Below is the Clever Supplies compatible LC3039 Set of 4 for this printer — chipped, and covered by a lifetime warranty.
| Cartridge | Type | Color | Approx. Yield |
|---|---|---|---|
| Brother LC3039 Set of 4 (compatible) | Ultra High Yield full cartridge set | Black / Cyan / Magenta / Yellow | 6,000 black, 5,000 per color |
MFC-J6945DW Ink — The Large Platform, and the Identical-Yield Trap
Brother’s official list for the LC3037/LC3039 family names exactly seven printers, and the MFC-J6945DW is one of them. The MFC-J6945DW is the highest model number on this platform’s official list. Both tiers fit this machine and mix freely by slot: LC3037 Super High Yield (3,000 pages black / 1,500 per color) below LC3039 Ultra High Yield (6,000 black / 5,000 per color), rated in accordance with ISO/IEC 24711.
The highest model number on the platform's official list, the MFC-J6945DW, is not exempt from the family's numerical trap. The small INKvestment printers (MFC-J805DW, MFC-J995DW and their siblings) post exactly the same yield figures — 3,000/1,500 and 6,000/5,000 — but take LC3033/LC3035 cartridges with different bodies that will not install here, just as LC3037/LC3039 cartridges will not install in them. Buy by cartridge family and model list, never by yield figure alone. Similar-looking LC3017/LC3019 and LC3029 cartridges do not fit either — and the newer MFC-J5855DW-generation machines take LC406, not LC3039.
At the top of the list, the tier gap is the same wide one: an LC3039 color cartridge carries more than three times the fill of its LC3037 counterpart, 5,000 pages against 1,500, and the black carries twice as much, 6,000 against 3,000. Match that gap to the machine's rhythm — a J6945DW printing every day makes the Ultra tier its long-run choice, while lighter use is covered by the Super High tier in the same slots at the lower fill.
Which LC3039 should you buy?
- The shelf for this printer: the LC3039 Set of 4 ($89.94) — one of each color, each cartridge chipped, at 6,000 black / 5,000 per color.
- Singles: LC3037 single cartridges are not listed on this platform — their reference single price could not be verified, and no price was invented for them.
Chip, ink and everyday use
Every cartridge in the set carries a new compatible chip, and Brother's own "Cannot Detect Ink Volume" guidance for this generation is stated here without dressing it up: with non-genuine ink the machine may or may not detect the cartridge, so we print the warning rather than promise recognition. Lifetime warranty with 1-year free returns on every cartridge.
More printers that use LC3039 ink
HL-J6000DW · MFC-J5845DW · MFC-J5845DW XL · MFC-J5945DW · MFC-J6545DW · MFC-J6545DW XL