| 摘要 |
An ink jet printer for printing a frameless image on a recording medium, having an image data input section, a recording section having a nozzle for ejecting an ink based on the image data, a carriage for reciprocating the recording section in a primary scanning direction, a recording medium moving section for moving the recording medium in a sub-scanning direction, a detection sensor provided on the carriage for detecting the recording medium, wherein a detection position is set on upstream side of the nozzle. The printer further has a first memory for storing the image data received, a masking section for applying masking processing to image data corresponding to outside of the recording medium in accordance with recording medium existence information, and a control section for controlling to print an image on the recording medium by using the image data applied the masking processing.
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