Study on the human-machine interface design of receipt printer is the requirements of not only the business but also the healthy work of users.

对票据打印机的人机界面进行系统地研究已经不仅是商业的要求，更是用户能够健康工作的要求。

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The POS client notifies him that his receipt will be printed at printer 3.

POS 客户端通知他，表明他的收据将在第3台打印机上打印。

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A small printer produces a receipt.

一个微型打印机就会打印出收条。

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We found that Square lets you connect to a Star Micronics receipt printer, and Intuit GoPayment accepts Bluetooth-enabled P25 Blue Bamboo printers -- so those could work for you.

ENGADGET: Ask Engadget: is iPod Touch and Wireless Printer-based credit card processing possible?

We saw a number of Electric Imp demos and appliance ideas at the booth including a simple hand-held "detonator" toggle switch with LED, seven-segment counter, water level sensor, servo-controlled gauge, RGB light, power socket, Christmas light, power monitor, toy washing machine, 16x16 LED display and receipt printer (the latter two being combined to show the avatars and tweets of anyone mentioning the Electric Imp) -- all Internet aware.

ENGADGET: Hands-on with the Electric Imp at Maker Faire (video)