RIP Page Buffering for Out-of-Sequence Print Rendering
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Solution Overview
Problem
Out of sequence rendering of pages in print jobs disrupts the normal printing flow due to the deletion of pages from storage before printing, leading to resource occupation issues and inefficiencies in rendering processes.
Innovation Solution
A method and system that manages print jobs using a raster image processing (RIP) system, involving storage threshold management, page deletion strategies, and RIP manager assignment to ensure pages are rendered and stored efficiently, allowing for out of sequence rendering without disrupting the normal printing flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pages are deleted from storage before printing to make space, then storage space is freed and printing flow is maintained, but out of sequence rendering occurs and printing reliability deteriorates
Solution Approach 1:
The system performs preliminary actions by rendering pages ahead of time and storing them in a buffer before the print engine needs them. This allows the print engine to request pages that are already prepared, eliminating the need to delete and re-render pages, thus maintaining printing reliability while managing storage space efficiently.
Solution Approach 2:
A buffer is introduced as an intermediary between the rendering system and the print engine. This buffer stores rendered pages temporarily, allowing the print engine to access pages without immediately deleting them from storage. The buffer mediates between the need to free storage space and the need to maintain page availability for reliable printing.
2Reliability
If pages are rendered again after deletion to maintain availability, then printing reliability is maintained, but rendering time increases and productivity decreases
Solution Approach 1:
Pages are rendered and stored in the buffer in advance before the print engine requests them. This preliminary rendering action ensures pages are already available when needed, eliminating the need for time-consuming re-rendering operations and maintaining high printing productivity while ensuring reliability.
3Quantity of substance
If storage threshold is reached and pages are deleted, then storage space is managed, but resource allocation becomes complex and device complexity increases
Solution Approach 1:
The system implements self-service by automatically managing storage space through predefined thresholds and policies. When the buffer reaches its storage threshold, the system automatically deletes oldest pages without requiring complex manual resource allocation decisions. This simplifies device complexity while effectively managing storage space.
Solution Approach 2:
The system uses feedback mechanisms where the buffer monitors its own storage levels and triggers automatic page deletion when thresholds are reached. This feedback loop simplifies resource allocation complexity by automating the decision-making process based on real-time storage status, eliminating the need for complex external resource management systems.
Data Source
AI summary
A printing system includes a printing device that receives print jobs. The printing device includes a controller having a raster image processing (RIP) system includes a RIP manager and at least one renderer. The RIP system renders a page of a plurality of pages. After the page is printed, a defect is detected on the page. The engine manager detects that the page is not available in the storage for rendered pages. The RIP manager is instructed to re-render the page using a renderer assigned to perform out of sequence rendering to render the page for printing.