| 摘要 |
An electronic cash register displays images for said article key receiving process and said total key response process on a screen, and in response to said first function key (IN indicative of eating inside), displays font data of a mark. Display attribution of the display is changed in accordance with the processing condition. That is, in response to the first function key, the background color at a predetermined area is changed in response to the first or second function key. An indicator for emitting a plurality of color rays indicates the processing condition with one of the color rays. The corresponding method is also disclosed.
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