Printer Startup Control With Selective Maintenance Initialization
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Solution Overview
Problem
Existing printing apparatuses require lengthy start-up times due to the need for comprehensive initialization of components, including maintenance units, which can be improved.
Innovation Solution
A printing apparatus with a control unit that determines the presence of a printing medium and the state of maintenance units, allowing for selective execution of initialization operations based on these conditions, thereby reducing unnecessary initialization steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive initialization of all components including maintenance unit is performed during start-up, then reliability of the printing apparatus is ensured, but start-up time increases
Solution Approach 1:
The patent applies partial initialization by selectively determining which components need initialization based on their current states. The control unit checks the conveyance mechanism state and maintenance unit state, and only initializes components that require it, rather than performing comprehensive initialization of all components. This reduces start-up time while maintaining necessary reliability.
2Reliability
If initialization of the conveyance mechanism and maintenance unit is always executed, then operational reliability is maintained, but productivity during start-up decreases
Solution Approach 1:
The patent implements dynamic initialization by making the initialization process adaptive based on real-time component states. The control unit dynamically determines whether to initialize the conveyance mechanism and maintenance unit by checking their current states (e.g., whether a printing medium is present, whether the maintenance unit is in a ready state). This dynamic approach optimizes start-up speed while ensuring operational reliability only when necessary.
Data Source
AI summary
A printing apparatus, comprising a printing head that performs printing on a printing medium, a conveyance mechanism that conveys a printing medium, a maintenance unit that executes a maintenance operation for the printing head, and a control unit, wherein the maintenance unit is configured to be able to receive power in the conveyance mechanism and to be able to perform the maintenance operation based on the received power, and the control unit determines existence or absence of a printing medium in the conveyance mechanism and a state of the maintenance unit when the printing apparatus is started up, and decides permission/inhibition of execution of a first initialization operation of initializing the conveyance mechanism and the maintenance unit based on a result of the determination.