That supplier is paid a monthly fee, and then has an incentive to cut printing costs by exploiting economies of scale in procurement, replacing printers with more efficient models and so forth.
供应商按月收费，并且可以通过规模采购降低打印成本获得额外报酬，用更高效的方式替代打印机等等。
Traditionally, printer makers have charged big corporate customers a per-page fee for printing services: up to 8 cents a page for a color document and less than 2 cents a page for black-and-white.
传统上，打印机制造商已向大公司客户收取了打印服务的单页费用：彩色文件高达8美分一页，黑白文件则不到2美分。
patent registration fee, fee for announcement and printing, fee for maintaining the application and annual fee;
专利登记费、公告印刷费、申请维持费、年费；
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