Printer Driver Prohibition Processing Optimization
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Solution Overview
Problem
Version 4 printer drivers for Windows operating systems experience significant delays in print processing due to lengthy prohibition processing times, particularly when using JavaScript, which increases the time required to resolve conflicts between option values, thereby delaying the start of print processing and impacting user convenience.
Innovation Solution
The printer driver employs a script language like JavaScript to perform prohibition processing by creating check data from setup items and option values, checking for conflicts, and replacing conflicting option values with non-conflicting ones, using a smaller data structure like a setup condition table to reduce processing time, thereby streamlining the prohibition processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If JavaScript is used for prohibition processing in version 4 printer driver, then the printer driver can run on Windows 8 and Windows Server 2012, but the prohibition processing time increases significantly
Solution Approach 1:
The patent pre-processes constraint expressions and converts them into an optimized format before runtime. By performing the conversion of constraint expressions from structured data to binary data in advance, the system reduces the computational burden during prohibition processing, thereby decreasing processing time while maintaining JavaScript compatibility with Windows 8 and Server 2012
Solution Approach 2:
The patent creates a simplified copy of the constraint checking functionality. Instead of directly interpreting complex structured constraint expressions during runtime, the system creates a pre-compiled binary representation that replicates the constraint logic, enabling faster evaluation while preserving the original constraint semantics
2Reliability
If the printer driver reads large PrintTicket data for each constraint expression check, then all constraint conditions can be verified, but the processing time increases
Solution Approach 1:
The patent extracts only the necessary constraint information from the large PrintTicket data structure. By identifying and extracting relevant constraint expressions and their associated parameters, the system avoids processing unnecessary data, thereby reducing processing time while maintaining accurate conflict detection
Solution Approach 2:
The patent segments the constraint checking process into independent, manageable units. By dividing constraint expressions into separate, pre-compiled binary representations, the system can evaluate each constraint independently and efficiently, reducing the overall processing time while ensuring all constraints are properly verified
Data Source
AI summary
A non-transitory computer-readable storage medium storing a printer driver, when being executed by a processor of the computing device, causes a computing device to perform prohibition processing including: obtaining setup items associated with print features of the printer device and corresponding option values from PrintTicket, to create check data; checking the check data for a setup item causing a conflict between option values; and in response to finding a setup item causing a conflict between option values, replacing an option value in the PrintTicket, which is set for the setup item causing the conflict, with another option value.