Recording media discharging device and ink-jet printer with the discharging device
AssigneeSharp Kabushiki Kaisha
InventorsMasaharu Kimura, Shunichi Hayashiyama, Tatsuya Ogawa, Shigeru Yoshida, Yasunobu Ohkawa
Life of this patent
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Abstract
A media discharging device for an ink-jet printer includes a rubber roller and star roller. A pair of paper guides are arranged on both sides, with respect to its rotary shaft of, the star roller, opposing each other and close to the star roller. Each paper guide has a slant which is inclined gradually upward in the paper discharge direction. This slant is positioned offset with respect to the path of movement of the projections on the star roller towards the paper discharge side, so as to prevent the rear edge of the recording paper from dropping into the recessed portions of the star roller.
Claims14
A recording media discharging device using a star roller for conveying recording media with images formed thereon In the discharge direction, comprising:
- guide means for guiding the upstream edge of a recording medium with respect to the feed direction so that the edge will not drop into the recessed portions on the peripheral side of the star roller when the edge passes the star roller, wherein a lower edge of the guide means on a downstream side of a rotational axis of the star roller, relative to the feed direction, extends lower than a lower edge of the guide means on an upstream side of the rotational axis,
- wherein the guide means has a guide surface for guiding the upstream edge of a recording medium with respect to the feed direction, and this guide surface is provided with a slant which is inclined gradually up in the paper discharge direction, thereby preventing the edge of the recording medium from dropping into the recessed portions of the star roller while permitting the edge of the recording medium to jump upwards.
An ink-jet printer comprising:
- a recording media discharging device including:
- a star roller for conveying recording media with images formed thereon in the discharge direction;
- and guide means for guiding the upstream edge of a recording medium with respect to the feed direction so that the edge will not drop into the recessed portions on the peripheral side of the star roller when the edge passes the star roller, wherein a lower edge of the guide means on a downstream side of a rotational axis of the star roller, relative to the feed direction, extends lower than a lower edge of the guide means on an upstream side of the rotational axis, and an image Is formed on the upper surface of the recording medium by ejecting ink droplets from an image forming means, and the recording medium with an image formed thereon is discharged toward an output portion by the recording media discharging device,
- wherein the guide means has a guide surface for guiding the upstream edge of a recording medium with respect to the feed direction, and this guide surface is provided with a slant which is inclined gradually up in the paper discharge direction, thereby preventing the edge of the recording medium from dropping into the recessed portions of the star roller while permitting the edge of the recording medium to jump upwards.
Dependencies are inferred from the claim text.