Detection Device Actuator State Control for Paper Jam Prevention

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Paper jams occur in image forming apparatuses due to the actuator of the detection device being in an unfolded state when an output option device is mounted, leading to potential jams and increased service calls.

Innovation Solution

The image forming apparatus provides state information and guide information to users to change the state of the detection device's actuator from an unfolded state to a folded state before mounting the output option device, thereby preventing paper jams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the detection device actuator remains in an unfolded state, then the detection device can detect paper loading status, but paper jams occur when output option device is mounted

Engineering Contradiction:

Improvepaper jam preventionVSAvoiddetection device operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary detection of the actuator state before allowing output option device mounting. The control unit checks whether the actuator is in the unfolded state and provides guidance information to fold it before mounting, preventing paper jams in advance

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by detecting the actuator state through the sensor, providing state information to the user, and guiding the user to change the state when necessary. This feedback loop ensures the actuator is in the correct state before output option device mounting

Inventive Principle:

Principle #23Feedback

2Productivity

If the actuator is in unfolded state during output option device mounting, then detection function is available, but service calls increase due to paper jams

Engineering Contradiction:

Improveservice call reductionVSAvoidactuator state information

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The sensor detects the actuator state and provides feedback information to the control unit, which then displays state information to the user. This information feedback enables users to understand the current actuator state and take appropriate actions

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control unit acts as an intermediary that receives detection information from the sensor, processes it, and provides guidance information to the user. This intermediary function bridges the gap between the detection device and the user, reducing service calls through better information communication

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250131223A1Provide information according to status of detection device

Publication Date: 2025.04.24 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

An example image forming apparatus includes a detection device to detect loading of paper output from the image forming apparatus, a user interface device, a processor, and a memory to store instructions executable by the processor. The processor is to, by executing the instructions, detect a folded state or an unfolded state of the detection device, display state information indicating a state of the detection device on the user interface device, and control an operation of an image forming job based on the state information of the detection device and mounting information of an output option device.