Finishing Line Controllers for Printer Initialization Optimization

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Solution Overview

Problem

Imaging systems, such as printers, face challenges in efficiently transitioning from a partial power down state to a ready state while minimizing noise and initialization time, especially when components are manually interfered with or subjected to external changes during power down.

Innovation Solution

The implementation of a selective initialization sequence that determines whether to perform a full or short initialization based on the position verification of apparatus components, using stored state information and calibration data to reduce unnecessary recalibration and noise, with the short sequence terminating if verification fails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a full initialization sequence is performed to ensure all components are properly positioned and calibrated, then reliability is improved, but initialization time increases

Engineering Contradiction:

Improvecomponent positioning accuracyVSAvoidinitialization time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system dynamically adjusts the initialization sequence based on the power state history. When transitioning from sleep state (partial power down), a short initialization sequence is used. When transitioning from off state (full power down), a full initialization sequence is performed. This dynamic adaptation resolves the contradiction by matching initialization thoroughness to the actual risk level.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the initialization parameter (sequence length) based on the power state condition. The controller determines whether to execute a short or full initialization sequence by evaluating the power state history, thereby optimizing the balance between reliability and time consumption for different operational contexts.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If a full initialization sequence is performed to detect manual interference or external changes, then reliability is improved, but noise emissions increase

Engineering Contradiction:

Improvedetection accuracyVSAvoidnoise emissions

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system dynamically selects the initialization sequence type based on the power state. From sleep state, a short sequence reduces noise while still performing necessary checks. From off state, a full sequence ensures thorough detection. This dynamic selection resolves the contradiction between detection accuracy and noise generation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system applies partial action (short initialization sequence) when sufficient for the context (sleep state transition), and full action (full initialization sequence) when necessary (off state transition). This principle allows the system to perform only the necessary level of initialization, avoiding excessive noise generation while maintaining adequate detection capability.

Inventive Principle:

Principle #16Partial or excessive action

3Productivity

If a short initialization sequence is used to reduce initialization time, then productivity is improved, but reliability may deteriorate if components are in unexpected positions

Engineering Contradiction:

Improveinitialization speedVSAvoidcomponent state verification

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system dynamically determines the appropriate initialization sequence length based on the power state history. This dynamic decision-making ensures that the short sequence is only used when safe (sleep state transition), while the full sequence is used when necessary (off state transition), thus maintaining reliability while optimizing productivity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses feedback from the power state history to determine the appropriate initialization sequence. This feedback mechanism ensures that the initialization thoroughness matches the actual system state, preventing reliability deterioration while maximizing productivity gains from shortened sequences.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10432816B1Finishing line controllers to optimize the initialization of a printing device

Publication Date: 2019.10.01 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

An example apparatus includes a non-transitory computer-readable medium with instructions stored thereon to perform apparatus component initialization sequences. The apparatus component initialization sequences include a full initialization sequence and a short initialization sequence, A processor is to execute the instructions to capture apparatus component state information, determine upon reception of a signal indicative of power on of the apparatus whether a position of an apparatus component is within a threshold of an expected position, perform the short initialization sequence if the position of the apparatus component is within the threshold and using the captured apparatus component state information.