Muitas impressoras a jato de tinta realmente usam (e, portanto:
Quando você não precisa de cores, obtenha uma impressora em preto e branco.
Coisas estranhas foram relatadas. para algumas marcas imprimir em preto e branco usando melhor qualidade evita usar o cartucho colorido, ao selecionar alguns modo econômico usaria cor:
Is there a driver setting [..] to print photos using the black cartridges for the printer?
[..]
Until the iP4500, it was enough to check "Grayscale" and select "plain paper" and "high quality".
E, as coisas podem ser muito mais complicadas , como para a Canon MP760 e o iP4000, que usa um grande cartucho preto de pigmento BCI-3e, e tintas de corante BCI-6 menores, incluindo ainda outro preto (e amarelo, ciano e magenta):
The truth is that the black pigment ink is [almost] always used on plain paper--never on photo paper and the dye black ink is always used on photo paper--[almost] never on plain paper.
[..]
The exception is when doing borderless printing which is not recommended on plain paper, but if you do it, the printer will use the dye black ink instead of the pigment black ink.Pretty simple, but there is a complication involving duplex printing. When doing duplex printing, the black pigment ink is cut to about one half of the intensity that it would normally print. Then, to make up for this decrease, the magenta and cyan inks are printed in the same area as the pigment black. The yellow and dye black are never added to the pigment black to make up the difference. NOTE: Recent tests have shown that this last statement is only true for 100% black. In fact, yellow, along with magenta and cyan, is blended for some shades of grey. Also, it doesn't matter whether the duplex printing is done automatically or manually, or whether you are doing booklet printing. And, in all cases, we are talking about duplex printing on plain paper.
(Nota: algumas impressoras a laser são conhecidas por contar com o uso de cores mesmo ao imprimir em preto e branco .)