Printing Apparatus Constant Speed Control via Buffer Pre-calculation

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Solution Overview

Problem

Conventional printing apparatuses experience irregularity in printing and reduced throughput due to changes in printing speed during operations.

Innovation Solution

A printing apparatus with a data receiving device, storage device, and controller that calculates and maintains a constant printing speed based on receiving and image creation time periods, ensuring consistent printing performance by starting the printing process only when the calculated amount of image can be created at the designated speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the printing speed is dynamically adjusted based on current data amount and receiving speed, then the printing apparatus can adapt to varying data flow conditions, but irregularity of printing occurs and throughput is lowered

Engineering Contradiction:
Improveadaptability to data flow conditionsVSAvoidprinting regularity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary calculations of receiving time period and image creating time period before starting printing. By pre-determining whether the buffer can store sufficient data for constant speed printing, the system avoids mid-process speed adjustments that cause irregularity, thus maintaining both adaptability and printing regularity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically evaluates data receiving conditions and buffer status before printing commencement, then selects the appropriate printing mode (constant speed or adjusted speed). This dynamic decision-making allows the system to adapt to varying conditions while maintaining printing regularity through informed speed selection rather than continuous adjustments

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the printing speed is dynamically adjusted based on current data amount and receiving speed, then the printing apparatus can adapt to varying data flow conditions, but throughput is lowered

Engineering Contradiction:
Improveadaptability to data flow conditionsVSAvoidthroughput
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The system performs preliminary calculations of receiving time period and image creating time period before starting printing. By pre-determining whether the buffer can store sufficient data for constant speed printing, the system avoids mid-process speed adjustments that reduce throughput, thus maintaining both adaptability and high productivity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the printing speed parameter based on preliminary evaluation of data receiving conditions. By calculating whether constant speed printing is feasible beforehand, the system selects optimal speed parameters that maximize throughput while adapting to actual data flow conditions

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the printing speed is changed during printing operation, then the printing apparatus can respond to data receiving variations, but irregularity of printing occurs

Engineering Contradiction:
Improveresponse to data receiving variationsVSAvoidprinting consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary calculations of receiving time period and image creating time period before starting printing. By pre-determining whether the buffer can store sufficient data for constant speed printing, the system avoids mid-process speed adjustments that cause irregularity, thus maintaining both adaptability and printing consistency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically evaluates data receiving conditions and buffer status before printing commencement, then selects the appropriate printing mode (constant speed or adjusted speed). This dynamic decision-making allows the system to adapt to varying conditions while maintaining printing consistency through informed speed selection rather than continuous adjustments

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10348927B2Printing apparatus for controlling start of printing process
Publication Date: 2019.07.09 BROTHER KOGYO KK
  • US10348927B2 patent drawing
  • US10348927B2 patent drawing
  • US10348927B2 patent drawing

AI summary

A controller of a printing apparatus causes, in accordance with programs, the printing apparatus to obtain data and temporarily storing the received data in a buffer, create an image to be printed on a printing medium in accordance with the received data, obtain a receiving time period required to receive particular amount of data, obtain an image creating time period to create the image in accordance with the particular amount of data, obtain a total print length of a printing medium on which printing is executed in accordance with the data, calculate an amount of image which can be printed at a designated constant printing speed based on the receiving time period, the image creating time period and the total print length, and, when the calculated amount of image can be created, start a process of printing at the designated constant printing speed in accordance with the created image.