JP2014029405A5

JP2014029405A5 -

Info

Publication number: JP2014029405A5
Application number: JP2012169882A
Authority: JP
Filing date: 2012-07-31
Publication date: 2015-09-10
Anticipated expiration: 2032-07-31

Description

（１）記録材にトナー像を形成する作像手段と、前記作像手段により形成されたトナー像を加熱して前記記録材に定着させる定着手段と、前記作像手段の調整を行うための作像立ち上げ動作と、前記定着手段を所定温度に加熱するための定着立ち上げ動作及び前記所定温度に維持するための定着準備動作を行う温度制御動作と、を電源投入後に並行して行う制御手段と、を備え、前記制御手段は、前記作像立ち上げ動作に要する時間に応じて、前記定着立ち上げ動作と前記定着準備動作の少なくとも一方を開始するタイミングを変更することを特徴とする画像形成装置。 (1) Image forming means for forming a toner image on a recording material, fixing means for heating and fixing the toner image formed by the image forming means to the recording material, and adjusting the image forming means Control for performing image forming start-up operation, fixing start-up operation for heating the fixing unit to a predetermined temperature, and temperature control operation for performing a fixing preparation operation for maintaining the predetermined temperature in parallel after the power is turned on And the control means changes the timing for starting at least one of the fixing start-up operation and the fixing preparation operation according to the time required for the image forming start-up operation. Forming equipment.

Claims

An image forming means for forming a toner image on a recording material;
Fixing means for heating and fixing the toner image formed by the image forming means to the recording material;
An image forming operation for adjusting the image forming unit, a fixing operation for heating the fixing unit to a predetermined temperature, and a temperature control operation for performing a fixing preparation operation for maintaining the predetermined temperature. , A control means for performing in parallel after power-on,
With
The image forming apparatus according to claim 1, wherein the control unit changes timing for starting at least one of the fixing start-up operation and the fixing preparation operation according to a time required for the image forming start-up operation .

The control means includes
When the time required for the image forming startup operation is shorter than the time required for the fixing startup operation, the fixing preparation operation is started after the fixing startup operation is completed.
2. The fixing preparation operation is started after the completion of the image forming operation when the time required for the image forming operation is longer than the time required for the fixing operation. The image forming apparatus described in 1.

The control means includes
When the time required for the image forming start-up operation is shorter than the time required for the fixing start-up operation, the fixing start-up operation is started together with the image forming start-up operation,
When the time required for the image forming start-up operation is longer than the time required for the fixing start-up operation, the fixing start-up operation is started after a lapse of a predetermined time from the start of the image forming start-up operation. The image forming apparatus according to claim 1.

The image forming apparatus according to claim 3, wherein the control unit starts the fixing preparation operation after the fixing start-up operation is completed.

And a fixing motor for rotating the fixing unit.
When the time required for the image forming start-up operation is shorter than the time required for the fixing start-up operation, the control unit does not stop driving the fixing motor after the fixing start-up operation. The image forming apparatus according to claim 2, wherein the operation is started.

And a fixing motor for rotating the fixing unit.
When the time required for the image forming start-up operation is longer than the time required for the image fixing start-up operation, the control unit stops driving the fixing motor after the fixing start-up operation, and The image forming apparatus according to claim 2, wherein the fixing motor is driven after the raising operation is completed.

The image forming apparatus according to claim 1, wherein the control unit sets a target temperature in the fixing preparation operation lower than a target temperature in the fixing start-up operation.

8. The image forming apparatus according to claim 1, wherein the control unit stops heating the fixing unit after performing the fixing preparation operation for a second predetermined time.