This print has 2 black cartridges, what is each for?
1437620
The one with a black bow tie icon is for photo paper -- it is really black. The other black has a pentagonal icon and is used for ordinary paper printing.
1437621
The one with the hexagon is for general Black printing and the one with the bow tie looking symbol is used mainly for photo printing
942757
The hour glass shape (which on mine looks like two triangles point to each other) is the Photo cartridge, not black ink. (Mine shows the camera icon above the hour glass on the cartridge.)
1492111
Who knows. I bought a color and black cartridge and the color one would not work but the black cartridge did.
857176
Your printer will tell you which cartridge(s) needs replaced. And the other cartridges can be stored for later. ;)
1147539
The photo appears to be of an original Brother cartridge. Query the seller directly to ensure that the produyct that will ship is what you are expecting.
1498385
I am at a loss.... The picture is only of the Epson Color Cartridges, what black cartridges are you referring to? If memory serves, this set is only for the color cartridges.
999432
As far as I know, you need both cartridges for the printer to operate properly.
660851
The color cartridges print approximately 1500 copies. You receive two black cartridges that print a little over 800 copies each.
1330035
Yes! There are three colour cartridges and two black. The larger black cartridge is used primarily for printing text (it's about double the size of the other black cartridge).
1220366
If the black is not empty, it will print in black even with one of the colors is empty. It seems all ink is expensive. Sell the printer cheap, and make your money off the ink.
319148
Yes, this is part of the Canon ink ripoff. You need both black cartridges, and only one is in the four-pack. But I take my time replacing ink when the printer says its low. It will go on much further. The ink cartridges are no longer transparent to prevent you from looking at the real level. But the product is good--both printer and ink.
1063087
One is for black-only printing and the other is for darkening color printing
1782011
The black 3rd slot is for either Gray Photo or Black cartridge. I use black. The gray photo did not work well for me.
992613
Had one black cartridge that appeared possibly defective. Just let printer do a cleaning and all was well. Hope this helps.
298951
probably not. They have software chips in the carts and I don't see them allowing it.If you print black, only the black will be used so nothing lost. you will just have to put another in instead of using two at a time.
999430
I can fine no information which says that both cartridges have to be installed to print black and white prints. However, I am thinking that it is probably a good idea to have both cartridges installed. It may well be as Donald Graham suggested, though I cannot verify that.
334951
the black section of the cartridge holder in the printer has the option for the single, or double-wide (as shown)...it fits fine as a double, or single. I guess they go thru a lot more black, so the printer accommodates for that.