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US 6,618,159 B1Granted
Method of switching print modes of printing device
AssigneeHitachi Koki Co., Ltd.
InventorsSatoru Tobita, Yoshikane Matsumoto, Hideaki Mamiya
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AssigneeHitachi Koki Co., Ltd.
InventorsSatoru Tobita, Yoshikane Matsumoto, Hideaki Mamiya
Estimating the term…
When print mode of a printing device is switched to a print mode with a higher print speed, after the direction of shuttle movement is reversed, a time duration that driving current is applied to a reversing coil is increased, so that shuttle speed is increased to a target speed. A time duration that driving current is applied to a constant velocity coil is decreased accordingly. On the other hand, when the print mode is switched to a print mode with a lower print speed, the time duration that driving current is applied to the reversing coil is decreased, and the time duration that driving current is applied to the constant velocity coil is increased accordingly. In this way, the print modes of the printing device can be switched quickly without stopping printing operations, thereby enhancing throughput.
A switching method of switching print modes of a printing device including a print mechanism for performing printing operations while reciprocally moving relative to a recording medium, wherein the reciprocal movement of the print mechanism is controlled using a coil including a reversing coil and a constant velocity coil, the switching method comprising the steps of:
A switching method of switching print modes of a printing device including a print mechanism for performing printing operations while reciprocally moving relative to a recording medium, wherein the reciprocal movement of the print mechanism is controlled using a constant velocity coil and an urging mechanism, the switching method comprising the steps of:
Dependencies are inferred from the claim text.