# US 7,607,745 B2 · Digital printing machine

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- Number: US 7,607,745 B2
- Document ID: US7607745B2
- Status: Granted
- Kind: B2
- Application number: 10/776,163
- Filed: 2004-02-12
- Published: 2005-08-18
- Granted: 2009-10-27
- Earliest claimed: 2004-02-12
- Assignees: Kornit Digital Ltd.
- Inventors: Ofer Ben-Zur
- Web page: https://patentgrep.com/patent/US7607745B2

## CPC

- B41J 11/06: Flat page-size platens {or smaller flat platens having a greater size than line-size platens (B41J11/0085 takes precedence)}
- B41J 3/28: for printing downwardly on flat surfaces, e.g. of books, drawings, boxes {, envelopes, e.g. flat-bed ink-jet printers}
- B41J 3/4078: {Printing on textile}
- B41J 11/002: {Curing or drying the ink on the copy materials, e.g. by heating or irradiating}
- B41J 11/00216: {using infrared [IR] radiation or microwaves}
- B41J 11/0085: {Using suction for maintaining printing material flat (on rotatable drums B41J13/226)}
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

A digital printing machine including a rigid frame, a first linear motion X axis stage mounted on the frame, a printing table assembly movable on each linear X axis stage, a linear motion Y axis stage mounted on the frame perpendicular to the linear X axis stages, above the printing table assemblies, and an array of inkjet nozzles mounted on the linear Y axis stage for linear motion perpendicular to the X axis stage. The printing machine may include a second linear motion X axis stage mounted on the frame parallel to the first axis stage and arranged for operation independently of the first axis stage, and/or a curing unit located above the printing table assembly and arranged to cure ink on media on the printing table assembly and/or an ironing unit located above the printing table assembly and arranged to iron media on the printing assembly before printing thereon, or a first printing table assembly movable on the base of the linear X axis stage and a second printing table assembly movable on the linear X axis stage base independently of the first printing table assembly.

## Claims

### Claim 1

A digital printing machine for printing on textile media, comprising:
a rigid frame;
a first linear motion X axis stage mounted on said frame for X axis motion;
a second linear motion X axis stage mounted on said frame alongside said first X axis stage for X axis motion parallel to X axis motion of said first axis stage, and arranged for operation independently of said first axis stage;
a printing table assembly configured for moving back and forth on each said linear X axis stage and for carrying said textile media; and
a linear motion Y axis stage mounted on said frame perpendicular to said first and second linear motion X axis stages, above said printing table assemblies; and
an array of inkjet nozzles for applying ink on said textile media loaded on said printing table assemblies, said array of inkjet nozzles being mounted on said linear Y axis stage for linear motion perpendicular to said X axis stages;
wherein during said applying said printing, said table assembly passes by said array of inkjet nozzles in said back and forth movements and said array of inkjet nozzles is substantially static on said linear Y axis and wherein said array of inkjet nozzles is configured to move from applying ink on a first of said printing table assemblies to applying ink on a second of said printing table assemblies, such that downtime for loading textiles onto one of said printing table assemblies is utilized by said applying ink onto a second of said printing table assemblies.

### Claim 2 (depends on 1)

The printing machine of claim 1, wherein each said printing table assembly comprises a media-holding plate and an openable cover pivotally coupled to said media-holding plate for holding said media firmly against said plate.

### Claim 3 (depends on 2)

The printing machine according to claim 2, wherein said media-holding plate includes a raised portion, and said cover includes a window of the same shape and slightly larger than said raised portion.

### Claim 4 (depends on 1)

The printing machine according to claim 1, wherein said linear motion X axis stage is a linear motor driven stage.

### Claim 5 (depends on 1)

The printing machine according to claim 1, wherein said linear motion Y axis stage is a linear motor driven stage.

### Claim 6 (depends on 1)

The printing machine according to claim 1, where at least part of each said printing table assembly is a vacuum table.

### Claim 7 (depends on 1)

The printing machine according to claim 1, wherein said inkjet nozzles include drop-on-demand piezoelectric inkjet nozzles.

### Claim 8 (depends on 1)

The printing machine according to claim 1, wherein said inkjet nozzles include continuous piezoelectric inkjet nozzles.

### Claim 9 (depends on 1)

The printing machine according to claim 1, further comprising a curing unit located above each said printing table assembly and arranged to cure ink on media on said printing table assembly.

### Claim 10 (depends on 9)

The printing machine according to claim 9, wherein said curing unit is an infrared system.

### Claim 11 (depends on 9)

The printing machine according to claim 9, wherein said curing unit is a hot air blowing unit.

### Claim 12 (depends on 1)

The printing machine according to claim 1, further comprising an ironing unit located above each said printing table assembly and arranged to iron media on said printing table assembly.

### Claim 13 (depends on 1)

The printing machine according to claim 1, wherein said back and forth movement comprises a circular movement.

### Claim 14

A printing machine for printing on textiles comprising:
a rigid frame;
a first linear motion X axis stage mounted on said frame;
a second linear X axis stage mounted on said frame alongside said first linear axis stage for parallel and independent side by side X axis motion;
a printing table assembly configured to move back and forth on said linear X axis stage;
a linear motion Y axis stage mounted on said flame perpendicular to said linear X axis stages, above said printing table assembly;
an array of inkjet nozzles for applying ink on a textile media loaded on said printing table assembly, said array of inkjet nozzles being mounted on said linear Y axis stage for linear motion perpendicular to said X axis stages;
a curing unit located above said printing table assembly and arranged to cure ink on said textile media on said printing assembly;
and an ironing unit located above said printing table assembly and arranged to iron said textile media on said priming assembly before printing thereon;
wherein during said applying said printing table assembly passes by said array of inkjet nozzles in said back and forth movements and said array of inkjet nozzles is substantially static on said linear Y axis and wherein said array of inkjet nozzles is configured to move from applying ink on a first of said printing table assemblies to applying ink on a second of said printing table assemblies, such that downtime for loading textiles onto one of said printing table assemblies is utilized by said applying ink onto a second of said printing table assemblies.

### Claim 15 (depends on 14)

The printing machine according to claim 14, wherein said curing unit is an infrared system.

### Claim 16 (depends on 14)

The printing machine according to claim 14, wherein said curing unit is a hot air blowing unit.

### Claim 17 (depends on 14)

The printing machine according to claim 14, wherein said printing table assembly comprises a media-holding plate and an openable cover pivotally coupled to said media-holding plate for holding said media firmly against said plate.

### Claim 18 (depends on 17)

The printing machine according to claim 17, wherein said media-holding plate includes a raised portion, and said cover includes a window of the same shape and slightly larger than said raised portion.

### Claim 19 (depends on 14)

The printing machine according to claim 14, where at least part of said printing table assembly is a vacuum table.

### Claim 20 (depends on 14)

The printing machine according to claim 14, wherein said printing table assembly is a flattened plate.

### Claim 21 (depends on 14)

The printing machine according to claim 14, wherein said inkjet nozzles include drop-on-demand piezoelectric inkjet nozzles.

### Claim 22 (depends on 14)

The printing machine according to claim 14, wherein said inkjet nozzles include continuous piezoelectric inkjet nozzles.

### Claim 23

A printing machine for printing on textiles, comprising:
a rigid frame;
a linear motion X axis stage base mounted on said frame;
a first printing table assembly configured to move back and forth on said linear X axis stage base;
a second printing table assembly configured to move back and forth on said linear X axis stage base alongside said first printing table assembly and independently of said first printing table assembly;
a linear motion Y axis stage mounted on said frame perpendicular to said linear X axis stages, above said printing table assemblies; and
an array of inkjet nozzles for applying ink on a textile media loaded on said printing table assembly, said array of inkjet nozzles being mounted on said linear Y axis stage for linear motion perpendicular to said X axis stage;
wherein during said applying said printing table assembly passes by said array of inkjet nozzles in said back and forth movements and said array of inkjet nozzles is substantially static on said linear Y axis and wherein said array of inkjet nozzles is configured to move from applying ink on a first of said printing table assemblies to applying ink on a second of said printing table assemblies, such that downtime for loading textiles onto one of said printing table assemblies is utilized by said applying ink onto a second of said printing table assemblies.

### Claim 24 (depends on 23)

The printing machine of claim 23, further comprising an ironing unit located above said printing table assemblies and arranged to iron media on said printing table assemblies.

### Claim 25 (depends on 23)

The printing machine according to claim 23, further comprising a curing unit located above said printing table assemblies and arranged to cure ink on media on said printing table assemblies.

### Claim 26 (depends on 25)

The printing machine according to claim 25, wherein said curing unit is an infrared system.

### Claim 27 (depends on 25)

The printing machine according to claim 25, wherein said curing unit is a hot air blower.

### Claim 28 (depends on 23)

The printing machine of claim 23, wherein said printing table assembly comprises a media-holding plate and an openable cover pivotally coupled to said media-holding plate for holding said media firmly against said plate.

### Claim 29 (depends on 28)

The printing machine of claim 28, wherein said media-holding plate includes a raised portion, and said cover includes a window of the same shape and slightly larger than said raised portion.

### Claim 30 (depends on 23)

The printing machine according to claim 23, where at least part of each printing table assembly is a vacuum table.

### Claim 31 (depends on 23)

The printing machine according to claim 23, wherein said inkjet nozzles include drop-on-demand piezoelectric inkjet nozzles.

### Claim 32 (depends on 23)

The printing machine according to claim 23, wherein said inkjet nozzles include continuous piezoelectric inkjet nozzles.