Printing Apparatus Control Unit Mode Shift for Jam Prevention
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Solution Overview
Problem
The existing printing apparatuses face issues with manual stapling mode causing jams and inconvenience when multiple users share the device, as users often forget to release the manual stapling mode, preventing others from printing.
Innovation Solution
A printing apparatus with a control unit that shifts modes based on the type of job accepted, preventing manual stapling during printing and automatically releasing the mode when appropriate, ensuring exclusive operation of manual stapling and printing modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the manual stapling function is used, then the post-processing apparatus can perform stapling on user-inserted sheets, but the printing apparatus occupies the post-processing apparatus and prevents other users from printing
Solution Approach 1:
The printing apparatus dynamically changes its operational state by switching between printing mode and manual stapling mode. The control unit monitors the operational state and automatically transitions between modes based on detected conditions, making the system adaptable rather than static. This resolves the contradiction by allowing the apparatus to be flexible in its function allocation.
Solution Approach 2:
The control unit continuously monitors the operational state of the printing apparatus and uses this feedback to determine when to switch modes. When printing is detected during manual stapling mode, the system receives feedback and automatically releases the manual stapling mode, preventing resource conflicts and ensuring printing operations can proceed.
2Reliability
If the printing apparatus inhibits printing during manual stapling mode, then sheet collision and jams are prevented, but printing cannot be performed indefinitely if the user forgets to release the manual stapling mode
Solution Approach 1:
The printing apparatus performs self-monitoring and self-correction by automatically detecting when printing operations are requested during manual stapling mode. The control unit autonomously determines the conflict and releases the manual stapling mode without requiring user intervention, making the system self-managing and preventing indefinite blocking of printing functions.
Solution Approach 2:
The system uses feedback from the printing operation detection to automatically adjust its operational mode. When printing is detected, the control unit receives this feedback and automatically transitions from manual stapling mode to printing mode, ensuring the system responds to operational needs and prevents permanent blocking of printing functions.
3Productivity
If the manual stapling mode is released automatically when printing is detected, then other users can print without interruption, but the post-processing apparatus may experience sheet collision if not properly managed
Solution Approach 1:
The control unit performs preliminary detection of printing operations before they can cause conflicts with manual stapling mode. By detecting the printing operation early and proactively releasing the manual stapling mode in advance, the system prevents sheet collision from occurring, allowing smooth transition to printing operations without harmful effects.
Data Source
AI summary
The present invention aims to shift a printing apparatus to a job processable state by releasing a manual stapling mode in response to an execution instruction of a predetermined job requested by a user. To achieve this, a control method of the printing apparatus comprises: printing an image on a sheet by executing a job; transporting the sheet on which the image was printed, to a post-processing apparatus; causing the post-processing apparatus to perform a post-process; shifting the printing apparatus to a mode of permitting to perform the post-process to the sheet inserted by a user; and controlling, in a case where an execution request of the job is newly accepted, to release the mode according to a kind of the job.