Printer Control Method for Interrupting Nozzle Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Inkjet printers face inefficiencies in throughput and work efficiency due to the delay between issuing a paper cut command and the actual cutting of roll paper, especially when the command is received during the nozzle checking process, leading to reduced print quality and productivity.
Innovation Solution
A printer control method that interrupts the automatic clogged nozzle detection process to immediately execute the paper cutting process when a paper cut command is received, and optionally performs the nozzle detection process after cutting, ensuring the printhead is capped to protect the ink meniscus and maintain print quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automatic clogged nozzle detection process is executed after printing ends, then print quality is maintained by detecting and addressing clogged nozzles, but the cutting process is delayed when a paper cut command is received during nozzle detection
Solution Approach 1:
The system dynamically adjusts the execution priority of processes based on real-time conditions. When a paper cut command is received during nozzle detection, the system interrupts the current nozzle detection process and prioritizes the cutting operation, then resumes or restarts nozzle detection after cutting is complete. This dynamic prioritization resolves the contradiction by allowing the system to adapt its behavior to user needs while maintaining both print quality and cutting responsiveness.
2Productivity
If the cutting process is prioritized by interrupting nozzle detection, then throughput is improved and waiting time is reduced, but nozzle clogging may occur without detection
Solution Approach 1:
The system performs preliminary nozzle detection before the cutting operation by interrupting the ongoing detection process and completing the detection in advance of the cut command execution. This preliminary action ensures nozzle functionality is verified before cutting, preventing undetected clogging while maintaining high throughput by not waiting for the full detection cycle to complete naturally.
3Reliability
If the automatic clogged nozzle detection process continues without interruption, then nozzle health is monitored, but the cutting process cannot be executed immediately when commanded
Solution Approach 1:
The system extracts the essential function of nozzle detection from the continuous monitoring process by interrupting the ongoing detection when a cut command is received. The detection process is taken out of the critical path of the cutting operation, allowing the cut to execute immediately while nozzle health monitoring is restored after the cutting is complete, thus improving ease of operation without completely abandoning reliability monitoring.
Data Source
AI summary
A method of controlling a printer 1 that cuts recording paper according to a paper cut command after printing print data received from a host computer 80 on the recording paper 10. If the paper cut command is received while performing an automatic clogged nozzle detection process on the inkjet head 17 after printing ends (S1: Yes), the automatic clogged nozzle detection process is interrupted (S2), and the cutting process is performed (S3).