Image Forming Apparatus Security Paper Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image forming apparatuses may fail to stop the image forming process in time, leading to confidential information being printed on plain paper, and stopping the sheet transportation can cause paper jams when non-security paper is fed.
Innovation Solution
An image forming apparatus with an inverting unit that inverts sheets through a specific path, a controller that initiates the image forming process based on print data for specific paper, and a converting unit that converts print data into image data for subsequent sides, ensuring that confidential information is only printed on security paper and preventing jams by managing sheet transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image forming process is stopped when non-security paper is detected, then confidential information leakage is prevented, but sheet transportation may be interrupted causing paper jams
Solution Approach 1:
The detecting device detects whether the sheet is security paper in advance before the image forming process completes. The controller stops the image forming process based on this preliminary detection, preventing confidential information from being printed on plain paper while maintaining sheet transportation continuity.
2Reliability
If sheet transportation is stopped to prevent confidential information printing, then security is improved, but productivity decreases due to paper jams
Solution Approach 1:
The system performs paper type detection before the image forming process completes. By stopping only the image forming process while maintaining sheet transportation, it prevents confidential information leakage without causing paper jams, thus maintaining productivity.
Solution Approach 2:
The system separates the control of sheet transportation from the control of image forming process. The sheet transportation continues uninterrupted while the image forming process is selectively stopped based on paper type detection, preventing both security issues and productivity loss.
3Reliability
If the detecting device checks for security paper, then confidential information protection is enhanced, but device complexity increases
Solution Approach 1:
The detecting device uses a magnetic detection mechanism to identify security paper containing magnetic bodies. This replaces complex visual inspection or manual verification systems, providing reliable security protection with relatively simple device structure.
Data Source
AI summary
An image forming apparatus includes: an inverting unit that inverts a sheet when an image forming process for forming images on both sides of the sheet is performed; an image forming unit that forms an image on a second side of the sheet based on first side image data and forms an image on a third side of the sheet based on second side image data; a controller that starts the image forming process upon receiving print data to be printed on specific paper, and inverts a sheet fed from a sheet feeding unit once or more; and a converting unit that, when the sheet fed from the sheet feeding unit is the specific paper, converts the first side print data which is received to be printed on the specific paper into N-th side image data where N≥2 and transfers the N-th side image data to the image forming unit.