JP2016110057A5

JP2016110057A5 -

Info

Publication number: JP2016110057A5
Application number: JP2015104703A
Authority: JP
Filing date: 2015-05-22
Publication date: 2018-07-05
Anticipated expiration: 2035-05-22

Description

（１）記録材に画像を形成する画像形成装置において、被冷却部を冷却するための冷却手段と、前記冷却手段の単位時間当たりの回転数を制御する制御手段と、を有し、前記制御手段は、画像形成動作を開始する際の前記冷却手段の回転数を、前記画像形成動作が開始される前に前記冷却手段が回転していた時間もしくは前記冷却手段が停止していた時間に基づき決定し、前記画像形成動作の期間における前記冷却手段の回転数を段階的に大きくしていくことを特徴とする画像形成装置。
（２）記録材に画像を形成する画像形成装置において、被冷却部を冷却するための冷却手段と、前記冷却手段の単位時間当たりの回転数を制御する制御手段と、を有し、前記制御手段は、画像形成動作の期間における前記冷却手段の回転数を段階的に大きくしていく周期を、前記画像形成動作が開始される前に前記冷却手段が回転していた時間もしくは前記冷却手段が停止していた時間に基づき決定することを特徴とする画像形成装置。
（３）記録材に画像を形成する画像形成装置において、被冷却部を冷却するための冷却手段と、前記冷却手段の単位時間当たりの回転数を制御する制御手段と、を有し、第１の画像形成動作が終了した場合、前記制御手段は、前記冷却手段を第１の回転数で回転させた後、前記冷却手段を前記第１の回転数よりも小さい第２の回転数で回転させ、前記冷却手段が前記第１の回転数で回転している期間に第２の画像形成動作が開始する場合、前記制御手段は、前記冷却手段が前記第２の回転数で回転している期間に前記第２の画像形成動作が開始する場合に比べて、前記第２の画像形成動作が開始する時の前記冷却手段の回転数を大きい回転数に設定することを特徴とする画像形成装置。 (1) In the image forming apparatus for forming an image on a recording material, comprising cooling means for cooling the cooled part, and a control means for controlling the number of revolutions per unit of time before Symbol cooling means, the said The control means sets the number of rotations of the cooling means at the start of the image forming operation to the time when the cooling means is rotating before the image forming operation is started or the time when the cooling means is stopped. An image forming apparatus characterized in that the number of rotations of the cooling means is increased in a stepwise manner during the image forming operation .
(2) In an image forming apparatus for forming an image on a recording material, the image forming apparatus includes a cooling unit for cooling a cooled portion, and a control unit for controlling the number of rotations of the cooling unit per unit time. Means for increasing the number of revolutions of the cooling means in a stepwise manner during the period of the image forming operation, the period during which the cooling means is rotating before the image forming operation is started, or the cooling means An image forming apparatus, wherein the image forming apparatus is determined based on a time during which the operation has been stopped.
(3) An image forming apparatus for forming an image on a recording material includes: a cooling unit for cooling the cooled portion; and a control unit for controlling the number of rotations of the cooling unit per unit time. When the image forming operation is completed, the control unit rotates the cooling unit at a first rotation number, and then rotates the cooling unit at a second rotation number smaller than the first rotation number. When the second image forming operation starts during the period in which the cooling unit is rotating at the first rotational speed, the control unit is configured to perform the period in which the cooling unit is rotating at the second rotational speed. The image forming apparatus is characterized in that the number of rotations of the cooling means when the second image forming operation starts is set higher than that when the second image forming operation starts.

Claims

An image forming apparatus for forming an image on a recording material,
A cooling means for cooling the cooled part;
A control means for controlling the number of revolutions per unit of time before Symbol cooling means, and
The control means determines the number of rotations of the cooling means when starting the image forming operation, the time during which the cooling means is rotating before the image forming operation is started or the time during which the cooling means is stopped. And the number of rotations of the cooling means during the image forming operation is increased stepwise .

It said control means, characterized in that said cooling means time has been rotated or the cooling means the longer the time that has been stopped, to reduce the rotational speed of the front Symbol cooling means at the start of the image forming operation The image forming apparatus according to claim 1.

The control unit rotates the cooling unit when starting the image forming operation when the time during which the cooling unit is rotating or the time during which the cooling unit is stopped is longer than a predetermined time. the image forming apparatus according to claim 1 or 2, characterized in that to set the minimum speed of the settable rotational speed number.

The control unit maintains the maximum number of rotations when the number of rotations of the cooling unit during a period of the image forming operation reaches a maximum number of rotations that can be set. the image forming apparatus according to any one of claims 1 to 3.

An image forming apparatus for forming an image on a recording material,
A cooling means for cooling the cooled part;
A control means for controlling the number of revolutions per unit of time before Symbol cooling means, and
The control means sets the cycle of increasing the rotation speed of the cooling means in a stepwise manner during the image forming operation period, the time during which the cooling means is rotating before the image forming operation is started, or the cooling An image forming apparatus characterized in that it is determined based on a time during which the means has been stopped .

The image forming apparatus according to claim 5, wherein the control unit increases the period as the time during which the cooling unit is rotating or the time during which the cooling unit is stopped is longer .

When the time during which the cooling means is rotating or the time during which the cooling means is stopped is longer than a predetermined time , the control means sets the cycle to the maximum cycle that can be set. the image forming apparatus according to claim 5 or 6, characterized in that.

The control means determines the number of rotations of the cooling means when the cooling means starts the cooling operation for cooling the cooled part after the image forming operation is finished, and the control means when the image forming operation is finished. The image forming apparatus according to claim 1 , wherein the image forming apparatus is determined based on a rotation speed of the cooling unit .

The control means sets the rotation speed of the cooling means when starting the cooling operation to be the same as the rotation speed of the cooling means when the image forming operation ends. The image forming apparatus according to 8 .

In an image forming apparatus for forming an image on a recording material,
A cooling means for cooling the cooled part;
Control means for controlling the number of revolutions per unit time of the cooling means,
When the first image forming operation is completed, the control unit rotates the cooling unit at a first rotation number, and then rotates the cooling unit at a second rotation number smaller than the first rotation number. Rotate,
When the second image forming operation is started during the period when the cooling unit is rotating at the first rotation speed, the control unit is configured during the period when the cooling unit is rotating at the second rotation speed. An image forming apparatus, wherein the number of rotations of the cooling unit when the second image forming operation starts is set to a larger number of rotations than when the second image forming operation starts.

When the second image forming operation starts during the period when the cooling unit is rotating at the first rotation speed, the control unit is configured to start the rotation at the first rotation speed. 11. The number of revolutions of the cooling unit when the second image forming operation starts is set based on the length of the period from the start of the second image forming operation to the start of the second image forming operation. The image forming apparatus described in 1.

When the second image forming operation starts during the period when the cooling unit rotates at the first rotation speed, the control unit causes the second image forming operation to be shorter as the period is shorter. The image forming apparatus according to claim 11, wherein the rotation number of the cooling unit at the start of the image is set to a large rotation number.

When the second image forming operation starts during the period when the cooling unit is rotating at the first rotation speed, the control unit is configured to control the cooling unit when the second image forming operation starts. The image according to any one of claims 10 to 12, wherein the rotational speed is set to be larger than the second rotational speed and smaller than or equal to the first rotational speed. Forming equipment.

When the second image forming operation starts during the period when the cooling unit is rotating at the second rotation speed, the control unit is configured to control the cooling unit when the second image forming operation starts. The image forming apparatus according to claim 13, wherein the rotation speed is set to the second rotation speed.

Said control means, based on the rotation speed of the cooling means when the first image forming operation is completed, any one of claims 10 to 14, characterized in that setting the first rotational speed 1 The image forming apparatus described in the item.

When the number of rotations of the cooling unit when the first image forming operation is completed is smaller than a predetermined number of rotations, the control unit sets the first number of rotations to the predetermined number of rotations, and When the number of rotations of the cooling unit when one image forming operation is completed is greater than or equal to the predetermined number of rotations, the control unit sets the first number of rotations to the first image forming operation. The image forming apparatus according to claim 15, wherein the rotation speed is set to be the same as the rotation speed at the time of completion.

Said control means, said while executing a second image forming operation, the image of any one of claims 10 to 16, wherein the increasing the rotation speed of the cooling means gradually Forming equipment.

While performing the second image forming operation, when it reaches the maximum rotational speed of rotational speed of the rotational speed can be set for the cooling means, the control means of the rotational speed of the front Symbol cooling means The image forming apparatus according to claim 17 , wherein the image forming apparatus maintains the maximum number of rotations.

Said control means, after the pre-Symbol cooling means is rotated a predetermined time at the second rotation speed, according to any one of claims 10 to 18, characterized in that stopping the rotation of the cooling means Image forming apparatus.

When the second image forming operation starts during the period when the cooling unit stops rotating, the control unit sets the rotation speed of the cooling unit when the second image forming operation starts . The image forming apparatus according to claim 19 , wherein the rotational speed is set to 2 .

21. The image forming apparatus according to claim 14, wherein the second rotational speed is a minimum rotational speed that can be set by the control unit .

A power supply that generates a DC voltage by performing a switching operation with an FET is provided.
The object to be cooled, the image forming apparatus according to any one of claims 1 to 21, characterized in that said FET.