Image Reading Device Job Holding State Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current printing systems lack the ability to securely cancel jobs from an image reading device, as existing printer specifications only allow cancellation of the current job being processed, leading to potential errors when a print job is in progress and a copy job is already sent to the printer, resulting in incomplete cancellation possibilities.
Innovation Solution
A printing system with a cancel instruction unit on the operation panel and an image reading device that obtains job holding information from the printer, reserves transmission of the copy job until the printer is no longer processing jobs, ensuring the copy job is executed as a current job and can be securely cancelled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the scanner sends a copy job regardless of the printer's job holding state, then the copy job can be transmitted immediately, but the copy job may be stored in the queue instead of being executed as a current job, making immediate cancellation impossible
Solution Approach 1:
The scanner checks the printer's job holding state before transmitting the copy job. This preliminary check ensures that the copy job is only sent when the printer is ready to execute it as a current job, not when it would be queued behind other print jobs. This allows immediate cancellation while maintaining transmission speed.
Solution Approach 2:
The scanner continuously monitors the printer's job holding state and uses this feedback information to control copy job transmission. When the printer finishes processing print jobs and its job holding state changes, the scanner is notified and can then transmit the reserved copy job, ensuring it becomes a current job that can be cancelled immediately.
2Productivity
If the copy job is transmitted immediately without checking the printer state, then transmission is fast, but the user may accidentally cancel the wrong job or be unable to cancel the copy job immediately
Solution Approach 1:
The scanner performs a preliminary check of the printer's job holding state before transmitting the copy job. This prevents the copy job from being queued behind print jobs, ensuring it can be executed as a current job and cancelled immediately if needed, thus maintaining operation accuracy.
Solution Approach 2:
The system dynamically adjusts copy job transmission based on the printer's real-time job holding state. The scanner reserves the copy job when the printer is processing print jobs and transmits it when the printer becomes available, optimizing both productivity and operational reliability.
3Reliability
If the copy job is reserved until the printer's job holding state changes, then immediate cancellation is possible, but transmission is delayed
Solution Approach 1:
The scanner checks the printer's job holding state in advance before transmitting the copy job. This preliminary action ensures that the copy job is only sent when the printer is ready to execute it immediately, enabling reliable cancellation while minimizing transmission delay through efficient timing.
Solution Approach 2:
The system uses feedback from the printer's job holding state to control copy job transmission timing. When the printer finishes processing and its job holding state changes, the scanner receives notification and transmits the reserved copy job immediately, reducing unnecessary delays while maintaining cancellation reliability.
Data Source
AI summary
A printing system including a printing device which has a cancel instruction unit that instructs cancellation of a current job being processed from an operation panel, and an image reading device that describes original image data read from an original in a page description language and sends to the printing device, in which the image reading device describes the read original image data in the page description language and sends it as a copy job to the printing device, obtains a job holding state from the printing device and reserves at least the transmission of the copy job to the printing device until the job held by the printing device runs out when it is judged according to the obtained job holding information that the printing device is in a job holding state.