JP2015022238A5 - - Google Patents
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- JP2015022238A5 JP2015022238A5 JP2013152085A JP2013152085A JP2015022238A5 JP 2015022238 A5 JP2015022238 A5 JP 2015022238A5 JP 2013152085 A JP2013152085 A JP 2013152085A JP 2013152085 A JP2013152085 A JP 2013152085A JP 2015022238 A5 JP2015022238 A5 JP 2015022238A5
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- 238000003745 diagnosis Methods 0.000 claims description 16
- 230000001186 cumulative Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000000875 corresponding Effects 0.000 description 2
Description
本発明の請求項６記載のトナー補給機構の異常診断装置は、請求項４又は５記載の補給機構の異常診断装置において、前記診断手段は、前記現像部に補給される現像剤を収容する収容部内の現像剤の残量が、予め定められた最少残量よりも多い場合であって、記録媒体毎に平均像密度に応じた複数のカテゴリに分類し、カテゴリ毎に、前記トナー濃度測定手段の測定結果と前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる目標値との差の平均値であるカテゴリ平均値と、前記複数のカテゴリのうち予め定められた１のカテゴリの前記平均値に対する他のカテゴリの前記平均値との差であるカテゴリ平均値の差と、を求め、前記他のカテゴリのうち相対的に平均像密度の大きいカテゴリに対して、前記カテゴリ平均値の差が予め定められた閾値以下の場合、前記複数のカテゴリのうち相対的に平均像密度の小さいカテゴリに対して、前記カテゴリ平均値が予め定められた閾値以下となることを充足する充足回数を数え、前記充足回数が予め定められた閾値に達したとき、前記補給機構に異常があると診断する。
The abnormality diagnosis device for a toner replenishment mechanism according to a sixth aspect of the present invention is the abnormality diagnosis device for the replenishment mechanism according to the fourth or fifth aspect , wherein the diagnostic means accommodates a developer to be replenished to the developing unit. In the case where the remaining amount of developer in the section is greater than a predetermined minimum remaining amount, the recording medium is classified into a plurality of categories corresponding to the average image density for each recording medium, and the toner density measuring unit is classified for each category. A category average value that is an average value of a difference between the measurement result and a target value determined in accordance with the pixel count cumulative value and the developer replenishment time, and the one of the predetermined categories among the plurality of categories. A difference of a category average value, which is a difference between the average value and the average value of the other category, and a category having a relatively high average image density among the other categories. Is equal to or less than a predetermined threshold value, the number of satisfaction satisfying that the category average value is equal to or less than a predetermined threshold value is counted for a category having a relatively low average image density among the plurality of categories. When the number of times of satisfaction reaches a predetermined threshold value, it is diagnosed that the supply mechanism is abnormal.
本発明の請求項６記載のトナー補給機構の異常診断装置は、請求項４又は５記載の補給機構の異常診断装置において、前記診断手段は、前記現像部に補給される現像剤を収容する収容部内の現像剤の残量が、予め定められた最少残量よりも多い場合であって、記録媒体毎に平均像密度に応じた複数のカテゴリに分類し、カテゴリ毎に、前記トナー濃度測定手段の測定結果と前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる目標値との差の平均値であるカテゴリ平均値と、前記複数のカテゴリのうち予め定められた１のカテゴリの前記平均値に対する他のカテゴリの前記平均値との差であるカテゴリ平均値の差と、を求め、前記他のカテゴリのうち相対的に平均像密度の大きいカテゴリに対して、前記カテゴリ平均値の差が予め定められた閾値以下の場合、前記複数のカテゴリのうち相対的に平均像密度の小さいカテゴリに対して、前記カテゴリ平均値が予め定められた閾値以下となることを充足する充足回数を数え、前記充足回数が予め定められた閾値に達したとき、前記補給機構に異常があると診断する。
The abnormality diagnosis device for a toner replenishment mechanism according to a sixth aspect of the present invention is the abnormality diagnosis device for the replenishment mechanism according to the fourth or fifth aspect , wherein the diagnostic means accommodates a developer to be replenished to the developing unit. In the case where the remaining amount of developer in the section is greater than a predetermined minimum remaining amount, the recording medium is classified into a plurality of categories corresponding to the average image density for each recording medium, and the toner density measuring unit is classified for each category. A category average value that is an average value of a difference between the measurement result and a target value determined in accordance with the pixel count cumulative value and the developer replenishment time, and the one of the predetermined categories among the plurality of categories. A difference of a category average value, which is a difference between the average value and the average value of the other category, and a category having a relatively high average image density among the other categories. Is equal to or less than a predetermined threshold value, the number of satisfaction satisfying that the category average value is equal to or less than a predetermined threshold value is counted for a category having a relatively low average image density among the plurality of categories. When the number of times of satisfaction reaches a predetermined threshold value, it is diagnosed that the supply mechanism is abnormal.
本発明の請求項８記載の画像形成装置は、前記現像部と、前記補給機構と、該補給機構の異常診断を行う請求項１〜７何れか１項記載の補給機構の異常診断装置と、前記現像部から供給される現像剤を用いて、記録媒体に画像を形成する画像形成部と、前記補給機構の異常診断の結果、少なくとも異常があることを報知する報知手段と、を備えている。
The image forming apparatus according to claim 8 of the present invention, the a current image portion, and the supply mechanism, and the abnormality diagnostic device of the replenishing mechanism according to claim 7 any one of claims performing abnormality diagnosis of該補supply mechanism An image forming unit that forms an image on a recording medium using the developer supplied from the developing unit, and a notification unit that notifies that there is at least an abnormality as a result of the abnormality diagnosis of the replenishment mechanism. Yes.
Claims (9)
該推定手段により、前記補給機構に異常の可能性があることが推定された場合、前記補給機構の異常の有無を診断する診断手段と、
を備えた補給機構の異常診断装置。 An estimation means for estimating that there is a possibility of abnormality in the replenishment mechanism, based on a cumulative pixel count value of the output image and a developer replenishment time by a replenishment mechanism that replenishes the developer with developer.
A diagnostic means for diagnosing the presence or absence of an abnormality in the replenishment mechanism when the estimation means estimates that there is a possibility of an abnormality in the replenishment mechanism;
An abnormality diagnosis device for a replenishment mechanism comprising:
前記現像剤補給時間が、該現像剤補給時間に対する前記ピクセルカウント累積値の許容範囲外となる回数を数え、
該回数が予め定められた閾値に達した場合、前記補給機構に異常の可能性があると推定する、
請求項１記載の補給機構の異常診断装置。 The estimation means includes
Counting the number of times that the developer replenishment time is outside the allowable range of the pixel count cumulative value for the developer replenishment time;
When the number of times reaches a predetermined threshold, it is estimated that the supply mechanism may be abnormal.
The abnormality diagnosis device for a supply mechanism according to claim 1.
前記現像剤補給時間が、該現像剤補給時間に対する前記ピクセルカウント累積値の許容範囲内の場合、
前記回数を初期状態にする、
請求項２記載の補給機構の異常診断装置。 The estimation means includes
When the developer replenishment time is within an allowable range of the pixel count cumulative value with respect to the developer replenishment time,
Initializing the number of times,
The abnormality diagnosis device for a supply mechanism according to claim 2.
前記現像部に補給される現像剤を収容する収容部内の現像剤の残量が、予め定められた最少残量よりも多い場合であって、
前記現像部内のトナー濃度を測定するトナー濃度測定手段の測定結果と前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる目標値との差が前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる乖離値を超えていること、及び、記録媒体当たりの前記出力画像の平均ピクセルカウント値が予め定められたピクセルカウント値を超えていること、の条件を充足する充足回数を数え、該充足回数が予め定められた閾値に達したとき、
前記補給機構に異常があると診断する、
請求項１〜３何れか１項に記載の補給機構の異常診断装置。 The diagnostic means includes
The remaining amount of the developer in the storage unit that stores the developer to be replenished to the developing unit is greater than a predetermined minimum remaining amount,
The difference between the measurement result of the toner density measuring means for measuring the toner density in the developing unit and the target value determined in accordance with the pixel count cumulative value and the developer supply time is the pixel count cumulative value and the developer supply time. The number of times of satisfaction satisfying the condition that the deviation value determined in accordance with the condition is exceeded and that the average pixel count value of the output image per recording medium exceeds the predetermined pixel count value is counted. , When the number of fulfillment reaches a predetermined threshold,
Diagnosing an abnormality in the replenishment mechanism,
The abnormality diagnosis device for a supply mechanism according to any one of claims 1 to 3.
前記現像部に補給される現像剤を収容する収容部内の現像剤の残量が、予め定められた最少残量よりも多い場合であって、
前記現像部内のトナー濃度を測定するトナー濃度測定手段の測定結果と前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる目標値との差が前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる乖離値を超えていること、の条件を充足する充足回数を数え、該充足回数が予め定められた閾値に達したとき、
前記補給機構に異常があると診断する、
請求項１〜３何れか１項に記載の補給機構の異常診断装置。 The diagnostic means includes
The remaining amount of the developer in the storage unit that stores the developer to be replenished to the developing unit is greater than a predetermined minimum remaining amount,
The difference between the measurement result of the toner density measuring means for measuring the toner density in the developing unit and the target value determined in accordance with the pixel count cumulative value and the developer supply time is the pixel count cumulative value and the developer supply time. When the number of fulfillment satisfying the condition of exceeding the divergence value determined according to, and the fulfillment count reaches a predetermined threshold,
Diagnosing an abnormality in the replenishment mechanism,
The abnormality diagnosis device for a supply mechanism according to any one of claims 1 to 3.
前記現像部に補給される現像剤を収容する収容部内の現像剤の残量が、予め定められた最少残量よりも多い場合であって、
記録媒体毎に平均像密度に応じた複数のカテゴリに分類し、
カテゴリ毎に、前記トナー濃度測定手段の測定結果と前記ピクセルカウント累積値及び前記現像剤補給時間に応じて決められる目標値との差の平均値であるカテゴリ平均値と、前記複数のカテゴリのうち予め定められた１のカテゴリの前記平均値に対する他のカテゴリの前記平均値との差であるカテゴリ平均値の差と、を求め、
前記他のカテゴリのうち相対的に平均像密度の大きいカテゴリに対して、前記カテゴリ平均値の差が予め定められた閾値以下の場合、前記複数のカテゴリのうち相対的に平均像密度の小さいカテゴリに対して、前記カテゴリ平均値が予め定められた閾値以下となることを充足する充足回数を数え、
前記充足回数が予め定められた閾値に達したとき、前記補給機構に異常があると診断する、
請求項４又は５記載の補給機構の異常診断装置。 The diagnostic means includes
The remaining amount of the developer in the storage unit that stores the developer to be replenished to the developing unit is greater than a predetermined minimum remaining amount,
Classify into multiple categories according to the average image density for each recording medium,
For each category, a category average value that is an average value of a difference between a measurement result of the toner density measuring unit and a target value determined according to the pixel count cumulative value and the developer replenishment time; and among the plurality of categories A difference of a category average value that is a difference between the average value of one predetermined category and the average value of another category;
A category having a relatively low average image density among the plurality of categories when a difference in the category average value is equal to or less than a predetermined threshold with respect to a category having a relatively high average image density among the other categories. On the other hand, the number of fulfillment satisfying that the category average value is less than or equal to a predetermined threshold is counted,
Diagnosing that there is an abnormality in the replenishment mechanism when the number of times of satisfaction reaches a predetermined threshold;
The abnormality diagnosis device for a supply mechanism according to claim 4 or 5 .
前記条件を充足しない場合、前記充足回数を初期状態にする、
請求項４〜６何れか１項記載の補給機構の異常診断装置。 The diagnostic means includes
If the condition is not satisfied, the satisfaction count is set to an initial state.
The abnormality diagnosis device for a supply mechanism according to any one of claims 4 to 6.
前記補給機構と、
該補給機構の異常診断を行う請求項１〜７何れか１項記載の補給機構の異常診断装置と、
前記現像部から供給される現像剤を用いて、記録媒体に画像を形成する画像形成部と、
前記補給機構の異常診断の結果、少なくとも異常があることを報知する報知手段と、
を備えた画像形成装置。 And said current image portion,
The replenishment mechanism;
The abnormality diagnosis device for a supply mechanism according to any one of claims 1 to 7, which performs abnormality diagnosis of the supply mechanism;
An image forming unit that forms an image on a recording medium using a developer supplied from the developing unit;
As a result of abnormality diagnosis of the replenishment mechanism, notification means for notifying that there is at least an abnormality,
An image forming apparatus.
請求項１〜７の何れか１項記載の推定手段、及び、
請求項１〜７の何れか１項記載の診断手段、
として機能させる補給機構の異常診断プログラム。 Computer
The estimation means according to any one of claims 1 to 7, and
The diagnostic means according to any one of claims 1 to 7,
Abnormality diagnosis program for replenishment mechanism to function as
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| JP2013152085A JP6205940B2 (en) | 2013-07-22 | 2013-07-22 | Abnormality diagnosis device for replenishment mechanism, image forming apparatus, and abnormality diagnosis program for replenishment mechanism |
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| JP2013152085A JP6205940B2 (en) | 2013-07-22 | 2013-07-22 | Abnormality diagnosis device for replenishment mechanism, image forming apparatus, and abnormality diagnosis program for replenishment mechanism |
Publications (3)
| Publication Number | Publication Date |
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| JP2015022238A JP2015022238A (en) | 2015-02-02 |
| JP2015022238A5 true JP2015022238A5 (en) | 2016-06-23 |
| JP6205940B2 JP6205940B2 (en) | 2017-10-04 |
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| JP7368268B2 (en) | 2020-02-25 | 2023-10-24 | 東芝テック株式会社 | Image forming device and method of controlling the image forming device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6184668A (en) * | 1984-10-02 | 1986-04-30 | Canon Inc | Developing device |
| JP4720448B2 (en) * | 2005-10-06 | 2011-07-13 | 富士ゼロックス株式会社 | Image forming apparatus and output image density correction method thereof |
| JP4904982B2 (en) * | 2006-08-15 | 2012-03-28 | 富士ゼロックス株式会社 | Developing device, image forming apparatus, and program. |
| JP5081655B2 (en) * | 2007-07-13 | 2012-11-28 | 株式会社リコー | Agent-filled developer container manufacturing method, agent-filled developer container, developer supply device, and image forming apparatus |
| JP5866899B2 (en) * | 2011-09-09 | 2016-02-24 | コニカミノルタ株式会社 | Image forming apparatus, image forming apparatus control method, and image forming apparatus control program |
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