An easy way to check your colors and contrast is to print your portlet's output on a black-and-white printer and give it to someone else.

检查颜色和对比度的简单方法是将portlet的输出通过到黑白打印机打印，并拿给其他人看。

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All this came in "alaia" colors: black or jewel shades like garnet red and deep green, as well as a graphic black and white animal print.

黑色或者诸如石榴红和深绿等宝石色，还有生动的黑白动物图案，都来到“alaia”色系中。

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White line engraving a relief print made from a block in which the non-printing engraved lines form the subject producing a design in white lines and areas on a black ground.

白文木刻用木刻版印的凸版画。 雕去它的主题部份，成非印纹，在黑色下面造成白色线条的图形。

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Designed through a unique collaboration between Plastic Logic and IDEO, the QUE design was inspired by black and white print-a communications standard that is both classic and timeless.

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The company has expertise in the production and management of documents: color and black-and-white, digital and paper, across networks or on a desktop, in a commercial print facility or a quick-print shop, for the small office or the global enterprise.

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