From the roll material selection, usage and maintenance, the paper discussed the measures to reduce roll consumption.

从热轧窄带钢轧机轧辊的材质选择、使用、维护等方面，探讨了降低辊耗的对策。

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For the PIXMA MG4220 Wireless and PIXMA MG3220 Wireless printers, Auto Duplex printing has been included to help reduce overall paper usage costs.

ENGADGET: Canon expands its PIXMA line with MG2220, MG3220 and MG4220 all-in-ones