Raster Image Processor Tray Adaptation

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Solution Overview

Problem

Printing speed decreases when switching paper feed trays or paper discharge trays in printing machines due to rotation of image data, especially when the processor's capacity is lower and high-resolution or large-size images are printed.

Innovation Solution

An image data generation device that acquires tray information, calculates the number of consumables used, and determines the appropriate direction for image data generation based on this information to prevent unnecessary rotation during raster image processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If image data is rotated to adapt to sheet direction when switching paper feed trays, then adaptability to different tray configurations is improved, but printing speed decreases due to processing time

Engineering Contradiction:

Improveadaptability to tray switchingVSAvoidprinting speed

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The system performs preliminary actions by acquiring tray information and calculating consumable usage before generating image data. The raster image processor determines the appropriate tray and image direction in advance, allowing image data to be generated directly in the correct orientation without subsequent rotation operations, thus maintaining printing speed while ensuring adaptability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the image generation direction based on real-time tray information and consumable status. By making the image generation process adaptive to current tray conditions rather than fixed, the system can select the optimal direction during generation, eliminating the need for post-generation rotation and preserving printing speed

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If high-resolution color image data is processed, then image quality is improved, but processing time increases and printing speed decreases

Engineering Contradiction:

Improveimage qualityVSAvoidprinting speed

Core Design Contradiction:

Manufacturing precisionVSSpeed

Solution Approach 1:

The system performs preliminary determination of the optimal image generation direction based on tray information before actual image rendering. This pre-planning allows the raster image processor to generate high-resolution color images directly in the correct orientation from the start, avoiding time-consuming rotation operations while maintaining image quality

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system ensures continuous useful action by eliminating interruptions for image rotation. By generating images in the correct direction from the beginning based on pre-acquired tray information, the high-resolution color image processing proceeds continuously without pauses for rotation, maintaining both quality and speed

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS9946503B2Image data generation device with raster image processor

Publication Date: 2018.04.17 RISO KAGAKU CORP

AI summary

There are provided: a tray information acquisition unit configured to acquire tray information indicating the size and direction of sheets stacked on a plurality of paper feed trays of a printing machine, and the number of remaining sheets; a number-of-pages calculator configured to calculate the number of print pages of the image data based on the print job; and a raster image processor configured to determine the direction of the image data based on the tray information and the number of print pages, and generate image data by performing a raster image processing.