METHODS AND SYSTEMS FOR HANDLING PRINTING OF LARGE-SIZE OBJECTS

• US 20200134405A1
• Filed: 10/26/2018
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Saurav, Amit, NARASIMHAN, NAGARAJAN, Ramasethu, Sivaprakash
• Granted Patent: US 11,042,790 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/1205 resulting in increased flexibility in print job configuration, e.g. job settings, print requirements, job tickets
• CPC Class Codes: G06F 3/1208 resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
• CPC Class Codes: G06F 3/1237 Print job management
• CPC Class Codes: G06F 3/1252 for sheet based media
• CPC Class Codes: G06F 3/1285 Remote printer device, e.g. being remote from client or server
• CPC Class Codes: G06K 15/1848 Generation of the printable image
• CPC Class Codes: G06K 15/1868 for fitting to an output condition, e.g. paper colour or format

Abstract

Described herein are methods and devices for printing a large-size object on multiple sheets. The method includes receiving, at a printing device, a print job submitted by a user, wherein the print job includes a large-size object. The large-size object present in the print job is processed by the printing device to ascertain the number and sizes of sheets required for printing the large-size object. Then, the large-size object is printed by the printing device on multiple sheets based on the ascertainment.

Claims

1. A method for handling printing of a large-size object at a printing device, the method comprising;

receiving, at the printing device, a print job comprising a large-size object;

processing, by the printing device, the large-size object to ascertain sizes of sheets and the corresponding number of the sheets required for printing the large-size object, wherein the processing comprising;

dividing the large-size object into N×

N spatial segments of equal size, wherein N is numeric value equal to or greater than 8;

measuring the size of a single spatial segment;

identifying different sizes of sheets pre-loaded in the printing device; and

comparing the measured size of the single spatial segment with different sizes of sheets pre-loaded in the printing device; and

based on the comparison, performing one or more of the following;

ascertaining a number of largest size sheets that map with a maximum number of spatial segments out of the N×

N spatial segments or

ascertaining a number of second largest size sheets to map on un-mapped spatial segments, or

ascertaining a number of the second largest size sheets and smallest size sheets, to map on the un-mapped spatial segments, or

ascertaining a number of individual sheets having size matching to map on the un-mapped spatial segments, when the number of the largest size sheets, the second largest size sheets, and the smallest size sheets fails to map all the un-mapped spatial segments; and

printing, by the printing device, the large-size object on multiple sheets based on the ascertainment, without scaling the large-size object.

2. The method of claim 1, wherein the measuring the size of the single spatial segment comprising measuring the width and height of the single spatial segment.

3. The method of claim 1, wherein the comparing of the measured size of the single spatial segment with the different sizes of sheets pre-loaded in the printing device, comprising comparing the width and height of the single spatial segment with the width and height of each available sheet based on the following expression:

4. The method of claim 1, wherein the print job comprising an instruction to print the large-size object in a large format printing mode.

5. The method of claim 1, wherein the size of each spatial segment is variable and is dependent on the size of the large-size object.

6. The method of claim 1, wherein the further ascertaining a number of individual sheets having size matching to map on the un-mapped spatial segments are carried out, for spatial segments, left un-mapped by the largest size sheets, the second largest size sheets, and the smallest size sheets.

7. The method of claim 1, wherein after measuring the size of a single spatial segment, the method comprising ascertaining the number and sizes of different sheets pre-loaded in the printing device.

8. The method of claim 1, wherein the processing of the large-size object comprising geometrical image transformation and rotation of the largest size sheets, the second largest size sheets, the smallest size sheets, or the individual sheets, so as to map all the N×

N spatial segments.

9. The method of claim 8, wherein the geometrical image transformation comprises spatial image scaling on the coordinates to align the image morphing and orientation in the processing of the large-size object.

10. The method of claim 1 is implemented in the form of a non-transitory computer-readable medium comprising instructions executable by a processing resource.

11. A method, comprising:

receiving a print job at a printing device, the print job comprising an object;

measuring the size of the object;

automatically identifying, by the printing device, pre-loaded sheets in the printing device;

automatically determining, by the printing device, whether the object is a large-size object based on the pre-loaded sheets in the printing device;

processing the large-size object in the following manner;

dividing the large-size object into N×

N spatial segments of equal size;

calculating the number of spatial segments to be printed on a single largest size sheet and the number of the largest size sheets required to print the maximum number of spatial segments;

identifying the remaining spatial segments of the large-size object; and

identifying the number of other loaded sheets required to print the remaining spatial segments of the large-size object; and

based on the calculation and identification, printing the complete large-size object on multiple sheets pre-loaded in the printing device, without scaling the large-size object.

12. The method of claim 11, wherein identifying the pre-loaded sheets comprises:

identifying different types of sheets; and

further segregating the sheets as largest size sheets, second largest size sheets, smallest size sheets and individual sheets.

13. The method of claim 11, wherein identifying the number of other loaded sheets required to print the remaining spatial segments of the large-size object comprises:

ascertaining a number of second largest size sheets to map on the remaining spatial segments, or

ascertaining a number of the second largest size sheets and smallest size sheets, to map on the remaining spatial segments, or

ascertaining a number of individual sheets having size matching to map on the remaining spatial segments, when the number of the largest size sheets, the second largest size sheets, and the smallest size sheets fails to map all the remaining spatial segments.

14. The method of claim 11, wherein the further ascertaining a number of individual sheets having size matching to map on the remaining spatial segments are carried out, for the spatial segments remained unmapped, by the largest size sheets, the second largest size sheets, and the smallest size sheets.

15. A printing device for printing a large-size object on multiple sheets, the printing device comprising a processor to:

receive a print job submitted by a user, wherein the print job comprising an instruction to print the large-size object in a large format printing mode;

divide the large-size object into N×

N spatial segments of equal size, wherein N is numeric value equal to or more than 8;

measure the size of a single spatial segment to calculate the size of the large-size object;

compare the measured size of the single spatial segment with different sizes of sheets pre-loaded in the printing device;

based on the comparison, ascertain one or more of the following;

a number of largest size sheets that map with a maximum number of spatial segments out of the N×

N spatial segments, or

a number of second largest size sheets to map on un-mapped spatial segments, or

a number of the second largest size sheets and smallest size sheets, to map on un-mapped spatial segments, or

a number of individual sheets having size matching to map on the un-mapped spatial segments, when the number of the second largest size sheets and the smallest size sheets fails to map all the un-mapped spatial segments; and

print the large-size object on multiple sheets based on the ascertainment, without scaling the large-size object.

16. The printing device of claim 15, wherein the processor is to compare the measured size of the single spatial segment with different sizes of sheets pre-loaded in the printing device, by comparing the width and height of the single spatial segment with the width and height of each available sheet based on the following expression:

17. The printing device of claim 15, wherein the size of each spatial segment is variable and is dependent on the size of the large-size object.

18. The printing device of claim 15, wherein the processor is to further ascertain a number of individual sheets having size matching to map on the un-mapped spatial segments, for spatial segments left un-unmapped, by the largest size sheets, the second largest size sheets, and the smallest size sheets.

19. The printing device of claim 15, wherein after measurement of the size of the single spatial segment, the processor is to ascertain the number and sizes of sheets pre-loaded in the printing device.

20. The printing device of claim 15, wherein the processor is to further identify pre-loaded sheets in the printing device.