Print Media Sensor Thresholds for False Notification Reduction

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Solution Overview

Problem

Imaging devices experience fluctuations in sensor readings due to variations in print media types, air presence, and signal oscillations, leading to false notifications about print media levels, which detract from the user experience.

Innovation Solution

Implementing print media thresholds with a medium storing executable instructions to assert low print media level notifications only when the detected amount is below a set value, allowing for customizable thresholds to mitigate these fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a sensor is used to detect print media levels, then automation is improved, but measurement precision deteriorates due to false readings from air presence and signal oscillations

Engineering Contradiction:

Improveautomated print media level detectionVSAvoidsensor reading accuracy

Core Design Contradiction:

Extent of automationVSMeasurement precision

Solution Approach 1:

The system dynamically adjusts the notification threshold based on detected print media type characteristics. The controller modifies the threshold value adaptively to account for variations in media properties that affect sensor readings, thereby maintaining measurement precision while preserving automated detection capabilities.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of the notification threshold to compensate for sensor inaccuracies. By adjusting this parameter based on detected media type and sensor behavior patterns, the system corrects for measurement errors caused by air presence and signal oscillations, improving effective measurement precision.

Inventive Principle:

Principle #35Parameter changes

2Loss of information

If notifications are triggered by sensor readings, then information feedback is improved, but reliability deteriorates due to false notifications from sensor fluctuations

Engineering Contradiction:

Improveprint media level information feedbackVSAvoidnotification accuracy

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The notification threshold is dynamically adjusted based on the detected print media type and sensor behavior. This dynamic parameter modification ensures that notifications are triggered only when appropriate, filtering out false signals while maintaining accurate information feedback about actual media levels.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses feedback from sensor readings to continuously monitor and adjust the notification threshold. By analyzing sensor behavior patterns and media type characteristics, the system learns to distinguish between genuine low-media conditions and false sensor fluctuations, improving notification reliability.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11461603B2Sensor of imaging device detects an amount of print media in a print media receptacle using plural thresholds to notify user when the imaging device has a low quantity of the print media

Publication Date: 2022.10.04 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

In some examples, a non-transitory machine readable medium can include instructions executable by a processing resource to assert a low print media level notification responsive to determination that a first amount of print media in a media receptacle of an imaging device is less than a set value, detect a second amount of print media in the media receptacle of the imaging device, compare the detected second amount of print media to a print media threshold that is based on the set value and a selectable print media value, and maintain the low print media level notification responsive to a determination that the detected second amount of print media is less than the print media threshold.