# US 11,027,550 B2 · Spitting offsets for printheads

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- Number: US 11,027,550 B2
- Document ID: US11027550B2
- Status: Granted
- Kind: B2
- Application number: 16/456,364
- Filed: 2019-06-28
- Published: 2020-12-31
- Granted: 2021-06-08
- Earliest claimed: 2019-06-28
- Assignees: Hewlett-Packard Development Company, L.P.
- Applicants: Hewlett-Packard Development Company, L.P.
- Inventors: Travis Timothy Hagen; Jeffrey Neal Daley; Murthy Srikantom
- Web page: https://patentgrep.com/patent/US11027550B2

## CPC

- B41J 2/16517: {Cleaning of print head nozzles (B41J2/16505, B41J2/1707 take precedence)}
- B41J 2/16526: {by applying pressure only}
- B41J 2/0451: {for detecting failure, e.g. clogging, malfunctioning actuator}
- B41J 2/16585: {for paper-width or non-reciprocating print heads}
- B41J 2002/1657: {Cleaning of only nozzles or print head parts being selected}
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

An example of an apparatus is provided. The apparatus includes a printhead to dispense a first print fluid and a second print fluid. In addition, the apparatus includes a first nozzle disposed on the printhead. The first nozzle is to eject a first plurality of drops of the first print fluid. The apparatus also includes a second nozzle disposed on the printhead. The second nozzle is offset from the first nozzle by an offset distance along a relative direction of media travel. The second nozzle is to eject a second plurality of drops of the second print fluid. Furthermore, the apparatus includes a textile to receive the first plurality of drops and the second plurality of drops. The textile is to be moved relative to the printhead by the offset distance between ejection of the first plurality of drops and the second plurality of drops.

## Claims

### Claim 1

An apparatus comprising:
a printhead to dispense a first print fluid and a second print fluid;
a first nozzle disposed on the printhead, wherein the first nozzle is to eject a first plurality of drops of the first print fluid;
a second nozzle disposed on the printhead, the second nozzle offset from the first nozzle by an offset distance along a relative direction of media travel, wherein the second nozzle is to eject a second plurality of drops of the second print fluid; and
a textile to receive the first plurality of drops and the second plurality of drops, wherein the textile is to be moved relative to the printhead by the offset distance between ejection of the first plurality of drops and the second plurality of drops.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the textile is to contact the first nozzle after the ejection of the first plurality of drops.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the textile is to contact the second nozzle after the ejection of the second plurality of drops.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the ejection of the first plurality of drops and the second plurality of drops generates a spit pattern in a straight line.

### Claim 5 (depends on 4)

The apparatus of claim 4, wherein the straight line is at least about 1 mm wide.

### Claim 6 (depends on 5)

The apparatus of claim 5, wherein the straight line is at least about 4 mm wide.

### Claim 7 (depends on 1)

The apparatus of claim 1, further comprising a dispenser to dispense the textile.

### Claim 8 (depends on 7)

The apparatus of claim 7, further comprising a collector to collect the textile after the textile receives the first print fluid and the second print fluid.

### Claim 9

A method comprising:
ejecting a first plurality of drops of a first print fluid from a first nozzle onto a textile;
moving the textile an offset distance, wherein a second nozzle is offset from the first nozzle by the offset distance along a relative direction of media travel, wherein the first nozzle and the second nozzle are disposed on a printhead to dispense the first print fluid and a second print fluid; and
ejecting a second plurality of drops of the second print fluid from the second nozzle onto the textile, wherein the textile is moved relative to the printhead by the offset distance between ejecting the first plurality of drops and the second plurality of drops.

### Claim 10 (depends on 9)

The method of claim 9, further comprising contacting the first nozzle with the textile after the ejection of the first plurality of drops.

### Claim 11 (depends on 10)

The method of claim 10, further comprising contacting the second nozzle with the textile after the ejection of the second plurality of drops.

### Claim 12 (depends on 10)

The method of claim 10, further comprising dispensing the textile from a dispenser such that the first plurality of drops from the first nozzle is to be ejected onto a clean portion of the textile.

### Claim 13 (depends on 10)

The method of claim 10, wherein moving the textile comprises dispensing the textile from a dispenser.

### Claim 14

An apparatus comprising:
a printhead to dispense a print fluid;
a first plurality of dies disposed on the printhead along a first line perpendicular to a direction of media travel, wherein each die of the first plurality of dies is to eject the print fluid;
a second plurality of dies disposed on the printhead along a second line parallel to the first line, wherein the first line is offset from the second line, and wherein each die of the second plurality of dies is to eject a print fluid; and
a textile to receive the print fluid ejected from the first plurality of dies and the second plurality of dies, wherein the textile is to be moved by an offset distance between ejection of the print fluid by the first plurality of dies and the second plurality of dies.

### Claim 15 (depends on 14)

The apparatus of claim 14, wherein the textile is to contact the first plurality of dies and the second plurality of dies after the ejection of the print fluid.
