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公开(公告)号：US20210331500A1
公开(公告)日：2021-10-28
申请号：US16605519
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Yossi Yaacobov , Michel Assenheimer
Abstract: In one example, a method comprises measuring, by a processor, the flow rate of a cleaning fluid to clean at least a portion of a printing apparatus. The measured flow rate is compared to a desired flow rate. When the measured flow rate is outside of a first deviation from the desired flow rate, but within a second deviation from the desired flow rate, then the method in this example comprises changing the operation of a component of a printing apparatus.
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Patent Agency Ranking
公开(公告)号：US20210283897A1
公开(公告)日：2021-09-16
申请号：US16605873
申请日：2017-12-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alex Feygelman , Mordechai Arenson , Marko Richter , Yossi Yaacobov
IPC: B41F31/28
Abstract: There is disclosed apparatus for wetting a roller of a printing system comprising an applicator unit comprising a liquid agent chamber. Upper and lower walls extend from the liquid agent chamber to define a slit therebetween. The upper wall extends beyond a lip of the lower wall to a transfer lip. A flow restrictor is received in the slit to prevent flow of liquid agent to a respective portion of the transfer lip, thereby defining a restricted portion of the slit and an adjacent unrestricted portion of the slit. The flow restrictor fits in the restricted portion with a clearance that permits liquid agent flow at a reduced velocity relative flow through the unrestricted portion, such that liquid agent along the restricted portion is discharged from the lower wall. A method of installing a flow restrictor is also disclosed.
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公开(公告)号：US20220082996A1
公开(公告)日：2022-03-17
申请号：US17417191
申请日：2019-05-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Vitaly Portnoy , Dmitry Maister , Yossi Yaacobov , Michel Assenheimer , Brian Schmitz Tani , Nailson Boaz Costa Leite
Abstract: There is disclosed a device such as a printer or temperature control device for a printer. The device may comprise a photoreceptor. The device may further comprise a heat exchanger to regulate a temperature of the photoreceptor. The device may further comprise a temperature regulator to measure a temperature of a surface of the photoreceptor and control the heat exchanger based on the measured temperature. The device may further comprise a superior temperature controller to, during a pre-print phase of a print action, inhibit the control of the heat exchanger by the temperature regulator and control the heat exchanger to provide a specified amount of heat exchange.
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公开(公告)号：US11906918B1
公开(公告)日：2024-02-20
申请号：US18065884
申请日：2022-12-14
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Lavi Cohen , Yossi Yaacobov , Tomer Bunker
CPC classification number: G03G15/50 , G03G21/1671
Abstract: In an example, a printing apparatus may include, a rotatable shaft, a removable drum mounted on the shaft and a fixing element to fixedly couple the removable drum to the shaft, so that the removable drum is to rotate with the shaft. The printing apparatus may also include a heater, a printing apparatus satellite component located adjacent to the removable drum and engageable with the removable drum and a controller. The controller may be to receive a command to prepare the removable drum for removal; and in response, control the shaft to rotate the removable drum; control the heater to heat the removable drum while it rotates; and control the printing apparatus to engage the satellite component of the printing apparatus with the removable drum while it rotates.
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公开(公告)号：US11472174B2
公开(公告)日：2022-10-18
申请号：US16605873
申请日：2017-12-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alex Feygelman , Mordechai Arenson , Marko Richter , Yossi Yaacobov
IPC: B41F31/28
Abstract: There is disclosed apparatus for wetting a roller of a printing system comprising an applicator unit comprising a liquid agent chamber. Upper and lower walls extend from the liquid agent chamber to define a slit therebetween. The upper wall extends beyond a lip of the lower wall to a transfer lip. A flow restrictor is received in the slit to prevent flow of liquid agent to a respective portion of the transfer lip, thereby defining a restricted portion of the slit and an adjacent unrestricted portion of the slit. The flow restrictor fits in the restricted portion with a clearance that permits liquid agent flow at a reduced velocity relative flow through the unrestricted portion, such that liquid agent along the restricted portion is discharged from the lower wall. A method of installing a flow restrictor is also disclosed.
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公开(公告)号：US11279159B2
公开(公告)日：2022-03-22
申请号：US16605519
申请日：2018-06-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Yossi Yaacobov , Michel Assenheimer
Abstract: In one example, a method comprises measuring, by a processor, the flow rate of a cleaning fluid to clean at least a portion of a printing apparatus. The measured flow rate is compared to a desired flow rate. When the measured flow rate is outside of a first deviation from the desired flow rate, but within a second deviation from the desired flow rate, then the method in this example comprises changing the operation of a component of a printing apparatus.
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