Post-Processing Apparatus Interrupting Print Jobs
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Solution Overview
Problem
Current techniques in the commercial printing industry do not allow for effective interruption of print processing by the image forming apparatus based on instructions from the post-processing apparatus, particularly when the post-processing apparatus encounters failures or needs to prioritize certain jobs over others.
Innovation Solution
A system where the post-processing apparatus can transmit instructions to the image forming apparatus to interrupt and prioritize print jobs, allowing for efficient handling of failures and job prioritization by controlling the print processing units within the image forming apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the image forming apparatus executes interrupt printing of print data waiting in the image forming apparatus, then the print processing can be interrupted, but the post-processing apparatus cannot instruct the image forming apparatus to execute interrupt based on post-processing failures or priorities
Solution Approach 1:
The post-processing apparatus transmits interrupt instructions to the image forming apparatus based on the actual post-processing status and job priorities, creating a feedback loop that allows dynamic control of print processing according to downstream requirements
Solution Approach 2:
The image forming apparatus is designed to receive and execute multiple types of control instructions from the post-processing apparatus, including interrupt requests, priority adjustments, and status notifications, making it universally controllable from the post-processing side
2Productivity
If print processing is performed in parallel to improve productivity, then production efficiency increases, but the ability to prioritize certain jobs based on post-processing needs is lost
Solution Approach 1:
The system dynamically adjusts job processing priorities during parallel execution by receiving real-time instructions from the post-processing apparatus, allowing the print processing sequence to be flexibly modified without stopping overall parallel operations
Solution Approach 2:
The image forming apparatus automatically adjusts its own print processing schedule and priority based on instructions received from the post-processing apparatus, enabling self-regulation of parallel operations according to downstream needs
3Productivity
If the image forming apparatus processes multiple jobs simultaneously, then productivity improves, but the post-processing apparatus cannot effectively handle failures by prioritizing specific jobs
Solution Approach 1:
When a post-processing failure occurs, the post-processing apparatus sends feedback instructions to the image forming apparatus to prioritize re-printing of the failed job, enabling reliable failure recovery while maintaining overall system productivity
Solution Approach 2:
The system prepares multiple jobs in the print queue with assigned priorities, and upon failure detection, the post-processing apparatus can immediately activate the pre-prepared high-priority re-print instruction without waiting for system reconfiguration
Data Source
AI summary
At least one embodiment of a post-processing apparatus performs post-processing on a product printed by a printing apparatus, and transmits, to the printing apparatus, instruction information instructing the printing apparatus to perform print processing for a first job preferentially. At least one embodiment of the printing apparatus receives, from the post-processing apparatus, the instruction information instructing the printing apparatus to perform the print processing for the first job preferentially, and performs control so as to perform the print processing for the first job preferentially over print processing for a second job, based on the instruction information.