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公开(公告)号：US20210389705A1
公开(公告)日：2021-12-16
申请号：US17348650
申请日：2021-06-15
Applicant: KYOCERA Document Solutions Inc.
Inventor： Ryohei Tokunaga , Yoshiyuki Odaka
Abstract: An image forming apparatus is provided with a sheet conveying device, a transfer device, a fixing device, a temperature sensor, a temperature control portion, and a conveyance control portion. The temperature control portion regulates power supplied to the heater by comparing between a temperature measured by the temperature sensor and a preset target temperature. The temperature control portion sets the target temperature to a first target temperature when an operation mode is a normal mode, and to a second target temperature lower than the first target temperature when the operation mode is a special mode. In a case in which the sequential printing process is performed, the conveyance control portion makes the sheet conveying device convey sheets at a longer interval when the operation mode is the special mode than when the operation mode is the normal mode.
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公开(公告)号：US20130243464A1
公开(公告)日：2013-09-19
申请号：US13800093
申请日：2013-03-13
Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
Inventor： Yoshiyuki Odaka
IPC: G03G15/20
CPC classification number: G03G15/5004 , G03G15/2039
Abstract: An image forming apparatus includes a fixing device including a heating roller heated by a fixing heater, a DUTY storage portion, a heater control portion, a number-of-times counting portion, a number-of-times determining portion, and a modifying portion. The DUTY storage portion stores a first DUTY table and a second DUTY table. The heater control portion reduces the consumption current of the fixing heater based on the first DUTY table when a total consumption current exceeds a setting current. The number-of-times counting portion counts the number of times the total consumption current has exceeded the setting current. The modifying portion causes the heater control portion to control the energization of the fixing heater based on the second DUTY table when the number-of-times determining portion determines that the number of times of excess exceeds a setting number of times.
Abstract translation: 图像形成装置包括：定影装置，包括由定影加热器加热的加热辊，DUTY存储部，加热器控制部，次数计数部，次数确定部和修改部 。 DUTY存储部分存储第一DUTY表和第二DUTY表。 当总消耗电流超过设定电流时，加热器控制部分基于第一DUTY表降低定影加热器的消耗电流。 次数计数部分计算总消耗电流超过设定电流的次数。 当次数确定部确定超出次数超过设定次数时，修改部分使得加热器控制部分基于第二DUTY表来控制定影加热器的通电。
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公开(公告)号：US10168230B2
公开(公告)日：2019-01-01
申请号：US15497012
申请日：2017-04-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshiyuki Odaka
Abstract: A temperature detection device includes: a thermocouple configured to output a first signal value corresponding to a thermoelectromotive force generated between a hot junction and a cold junction thereof, a detection portion configured to output a second signal value corresponding to a temperature of the cold junction; a conversion processing portion; and a calculation processing portion, and detects a temperature of a fixing member by using a high-degree expression for temperature calculation that includes variables for which the first signal value and the second signal value are to be substituted.
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4.发明申请公开(公告)号：US20170314999A1
公开(公告)日：2017-11-02
申请号：US15497012
申请日：2017-04-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshiyuki Odaka
CPC classification number: G01K7/021 , G01K7/02 , G01K7/04 , G01K7/42 , G01K2207/00 , G03G15/2003 , G03G15/2039
Abstract: A temperature detection device includes: a thermocouple configured to output a first signal value corresponding to a thermoelectromotive force generated between a hot junction and a cold junction thereof, a detection portion configured to output a second signal value corresponding to a temperature of the cold junction; a conversion processing portion; and a calculation processing portion, and detects a temperature of a fixing member by using a high-degree expression for temperature calculation that includes variables for which the first signal value and the second signal value are to be substituted.
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公开(公告)号：US09316982B2
公开(公告)日：2016-04-19
申请号：US14435724
申请日：2014-04-09
Applicant: KYOCERA Document Solutions Inc.
Inventor： Junya Yoda , Yoshiyuki Odaka
CPC classification number: H05B6/145 , G03G15/205 , G03G15/55 , G03G2215/2032 , H05B6/107
Abstract: A fixing device is provided with a magnetic flux generating unit, first and second rotary bodies, a fixing belt, a temperature sensing portion, a stopped time measuring portion, an abnormality determination portion, and a heating delay portion. The fixing belt extends between the first and second rotary bodies, and is heated by the first rotary body. The temperature sensing portion is disposed downstream of the first rotary body and senses the temperature of the fixing belt. The stopped time measuring portion measures a time period after heating has been stopped before an instruction to start heating is inputted. The abnormality determination portion determines any abnormality in the fixing belt based on a change in temperature after heating has started. When a stopped time is shorter than a pre-configured time period, the heating delay portion delays the start time via magnetic flux based on the instruction to start heating.
Abstract translation: 定影装置设置有磁通量产生单元，第一和第二旋转体，定影带，温度感测部分，停止时间测量部分，异常判定部分和加热延迟部分。 定影带在第一和第二旋转体之间延伸，并被第一旋转体加热。 温度检测部分设置在第一旋转体的下游并感测定影带的温度。 在输入开始加热指示之前，停止时间测量部分测量在加热停止之后的时间段。 异常判定部基于加热开始后的温度变化来判定定影带的任何异常。 当停止时间比预先配置的时间段短时，加热延迟部分基于开始加热的指令通过磁通量延迟开始时间。
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240255873A1
公开(公告)日：2024-08-01
申请号：US18421878
申请日：2024-01-24
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshiyuki Odaka
IPC: G03G15/20
CPC classification number: G03G15/205 , G03G15/2017
Abstract: An image forming apparatus includes a fixing portion, a first acquisition processing portion, a first determination processing portion, and a restriction processing portion. The fixing portion is provided rotatably around a rotation shaft. The first acquisition processing portion acquires first temperature information regarding the temperature of the fixing portion at the end of a first image forming process of forming an image on a first sheet whose size in a width direction along the rotation shaft is smaller than a reference size. The first determination processing portion determines an execution time of a cooling process of cooling the fixing portion, based on the first temperature information. In a case where the execution time of the cooling process determined by the first determination processing portion exceeds an upper limit time, the restriction processing portion restricts the execution of the cooling process exceeding the upper limit time.
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公开(公告)号：US08909083B2
公开(公告)日：2014-12-09
申请号：US13800093
申请日：2013-03-13
Applicant: Kyocera Document Solutions Inc.
Inventor： Yoshiyuki Odaka
CPC classification number: G03G15/5004 , G03G15/2039
Abstract: An image forming apparatus includes a fixing device including a heating roller heated by a fixing heater, a DUTY storage portion, a heater control portion, a number-of-times counting portion, a number-of-times determining portion, and a modifying portion. The DUTY storage portion stores a first DUTY table and a second DUTY table. The heater control portion reduces the consumption current of the fixing heater based on the first DUTY table when a total consumption current exceeds a setting current. The number-of-times counting portion counts the number of times the total consumption current has exceeded the setting current. The modifying portion causes the heater control portion to control the energization of the fixing heater based on the second DUTY table when the number-of-times determining portion determines that the number of times of excess exceeds a setting number of times.
Abstract translation: 图像形成装置包括：定影装置，包括由定影加热器加热的加热辊，DUTY存储部，加热器控制部，次数计数部，次数确定部和修改部 。 DUTY存储部分存储第一DUTY表和第二DUTY表。 当总消耗电流超过设定电流时，加热器控制部分基于第一DUTY表降低定影加热器的消耗电流。 次数计数部分计算总消耗电流超过设定电流的次数。 当次数确定部确定超出次数超过设定次数时，修改部分使得加热器控制部分基于第二DUTY表来控制定影加热器的通电。
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公开(公告)号：US11934122B2
公开(公告)日：2024-03-19
申请号：US17658883
申请日：2022-04-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshiyuki Odaka
IPC: G03G15/20
CPC classification number: G03G15/2039
Abstract: An image forming apparatus includes a temperature sensor, a conveyance control portion, a driving control portion, an adjustment processing portion, and a stop processing portion. The temperature sensor is provided apart from a contact position between a fixing member and a transferred sheet to which a toner image has been transferred. The conveyance control portion continuously executes conveyance processes of conveying the transferred sheet. The driving control portion controls driving of a heater for heating the fixing member so that a temperature detected by the temperature sensor matches a predetermined temperature. The adjustment processing portion restricts the execution of the conveyance process until an adjustment process of adjusting a formation condition of the transferred sheet is completed. The stop processing portion stops the continuous execution of the conveyance processes when the restriction on the execution of the conveyance process continues beyond a predetermined timing.
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公开(公告)号：US20220382187A1
公开(公告)日：2022-12-01
申请号：US17658883
申请日：2022-04-12
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yoshiyuki Odaka
IPC: G03G15/20
Abstract: An image forming apparatus includes a temperature sensor, a conveyance control portion, a driving control portion, an adjustment processing portion, and a stop processing portion. The temperature sensor is provided apart from a contact position between a fixing member and a transferred sheet to which a toner image has been transferred. The conveyance control portion continuously executes conveyance processes of conveying the transferred sheet. The driving control portion controls driving of a heater for heating the fixing member so that a temperature detected by the temperature sensor matches a predetermined temperature. The adjustment processing portion restricts the execution of the conveyance process until an adjustment process of adjusting a formation condition of the transferred sheet is completed. The stop processing portion stops the continuous execution of the conveyance processes when the restriction on the execution of the conveyance process continues beyond a predetermined timing.
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公开(公告)号：US10394187B2
公开(公告)日：2019-08-27
申请号：US16117006
申请日：2018-08-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Keigo Kimura , Hiroka Itani , Yoshiyuki Odaka , Hiroaki Watanabe
IPC: G03G21/20 , G03G15/043 , G03G15/04
Abstract: An image forming apparatus includes a photoreceptor and an exposure device. The exposure device is configured to expose a surface of the photoreceptor and to form an electrostatic latent image. The exposure device includes a light source, a polygon mirror and a polygon motor. The light source is configured to emit a beam. The polygon mirror is configured to deflect the beam emitted from the light source. The polygon motor is configured to rotate the polygon mirror. The polygon motor is rotated at least temporarily when an aging mode to remove moisture from the surface of the photoreceptor is executed.
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