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US 6,655,864 B2Granted
Dot recording apparatus
AssigneeSeiko Epson Corporation
InventorKazuo Saito
Life of this patent
Estimating the term…
Abstract
A recording head has a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof. A drive feeding roller extends in a main scanning direction of the recording head. A plurality of driven feeding rollers are arranged in the main scanning direction with a predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head. A plurality of medium regulators are arranged in the main scanning direction with a predetermined interval which is associated with the arrangement of the driven feeding rollers. The medium regulators are opposed to the head face such that top faces define a distance between the recording medium carried thereon and the head face.
Claims18
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof;
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- and
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is one of equal to or greater than the first predetermined distance, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face;
- wherein the first predetermined interval is a distance between centers of adjacent driven feeding rollers and the second predetermined interval is a distance between centers of adjacent medium regulators.
3 more elements
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof:
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- and
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is associated with the arrangement of the driven feeding rollers, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face,
- wherein two adjacent driven feeding rollers are connected with a shaft which extends in the main scanning direction to form a driven feeding roller unit;
- and
- wherein each of the medium regulators and a center portion in the main scanning direction of the shaft in each of the driven feeding roller units are situated on the same line which extends in the subscanning direction.
5 more elements
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof:
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- and
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is associated with the arrangement of the driven feeding rollers, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face, wherein each of the medium regulators and a center portion in the main scanning direction of the associated driven feeding roller are situated on the same line which extends in the subscanning direction.
2 more elements
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof:
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- and
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is associated with the arrangement of the driven feeding rollers, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face,
- wherein each of the medium regulators and a center portion in the main scanning direction of every other driven feeding roller are situated on the same line which extends in the subscanning direction.
3 more elements
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof:
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- and
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is associated with the arrangement of the driven feeding rollers, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face,
- wherein two adjacent driven feeding rollers are connected with a shaft which extends in the main scanning direction to form a driven feeding roller unit;
- and
- wherein each of the medium regulators and an associated portion between the adjacent driven feeding roller units are situated on the same line which extends in the subscanning direction.
5 more elements
A dot recording apparatus, comprising:
- a recording head, having a head face on which at least one row of dot forming elements which form dots on a recording medium is arranged in a subscanning direction thereof;
- a drive feeding roller, extending in a main scanning direction of the recording head;
- a plurality of driven feeding rollers, arranged in the main scanning direction with a first predetermined interval, such that the recording medium is nipped between the drive feeding roller and the driven feeding rollers to be fed to the recording head;
- a plurality of medium regulators, arranged in the main scanning direction with a second predetermined interval which is one of equal to or greater than the first predetermined distance, the medium regulators being opposed to the head face such that top faces of medium regulators define a distance between the recording medium carried thereon and the head face;
- and
- a subregulator disposed between the respective adjacent medium regulators at an area opposed to a downstream side of the head face to support the recording medium together with the medium regulators.
3 more elements
Dependencies are inferred from the claim text.