RIP Order Control for Image Delivery Sorting

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Solution Overview

Problem

Existing image forming systems face inefficiencies in adjusting the sorting order and face orientation of recording sheets during delivery, particularly when reversing is required, leading to prolonged printing times and increased memory consumption due to the need to wait for all pages to complete RIP operations.

Innovation Solution

The system includes a controller that executes RIP operations in forward or reverse order based on user input, allowing for simultaneous image formation and delivery without waiting for all pages to finish, using a combination of image processing and delivery device mechanisms to manage sorting and orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the system waits for all pages to complete RIP operations before printing, then the sorting order and face orientation can be accurately controlled, but the printing time is prolonged

Engineering Contradiction:
Improvesorting order controlVSAvoidprinting time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-calculating the required RIP operation order based on the desired delivery order and face orientation settings. The controller determines the RIP operation sequence in advance (forward order for face-down delivery, reverse order for face-up delivery) before actual printing begins, allowing the system to proceed with printing immediately without waiting for all RIP operations to complete.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If the system waits for all pages to complete RIP operations before printing, then the image quality can be ensured, but the memory consumption increases

Engineering Contradiction:
Improveimage qualityVSAvoidmemory consumption
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The system performs preliminary calculation of the RIP operation order based on delivery requirements, then executes RIP operations sequentially in the predetermined order. This allows the system to process and deliver pages one at a time rather than loading all pages into memory simultaneously, significantly reducing memory consumption while ensuring each page receives appropriate RIP processing for quality assurance.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If the system processes pages in forward order, then the RIP operation is simple, but the delivery order may not match the desired sorting

Engineering Contradiction:
ImproveRIP operation complexityVSAvoiddelivery order accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The system applies inversion by reversing the RIP operation order based on the desired delivery configuration. When face-up delivery is selected, the system executes RIP operations in reverse order (last page first) so that after printing and potential reversing by the reversing mechanism, the final delivery order matches the desired forward sequence. This maintains simple sequential processing while achieving correct delivery sorting.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS11861251B2Image forming system that changes order of RIP according to combination of sorting order and face orientation at delivery of recording medium having image formed thereon
Publication Date: 2024.01.02 KYOCERA DOCUMENT SOLUTIONS INC
  • US11861251B2 patent drawing
  • US11861251B2 patent drawing
  • US11861251B2 patent drawing

AI summary

An image forming system includes an input device, an image processing device, an image forming device, a delivery device, and a controller. The controller causes the image processing device to execute RIP operation in forward order with respect to print data, upon receipt, through the input device, of a first instruction indicating one of a combination of reverse order and face-up, and a combination of forward order and face-down, as combination of sorting order and face orientation at delivery of a recording medium having an image formed thereon, and causes the image processing device to execute RIP operation in reverse order with respect to the print data, upon receipt, through the input device, of a second instruction indicating one of a combination of forward order and face-up, and a combination of reverse order and face-down, as the combination of the sorting order and the face orientation at delivery.