Inkjet recorder and method of detecting malfunction
US-2018370227-A1 · Dec 27, 2018 · US
Method for setting a drop shape in a printing process
US2024308143A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024308143-A1 |
| Application number | US-202418599121-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 7, 2024 |
| Priority date | Mar 14, 2023 |
| Publication date | Sep 19, 2024 |
| Grant date | — |
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- Title
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Abstract
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A method for setting a drop shape in a printing process, including the steps of controlling (S 101 ) a piezo element of a printing nozzle by a first voltage profile; detecting (S 102 ) an electric current value averaged over the first voltage profile or a sound amplitude averaged over the first voltage profile; controlling (S 103 ) the piezo element of the printing nozzle by a second voltage profile; detecting (S 104 ) an electric current value averaged over the second voltage profile or a sound amplitude averaged over the second voltage profile; and selecting (S 105 ) the voltage profile with the lower detected current value or the lower detected sound amplitude.
First claim
Opening claim text (preview).
1 . A method for setting a drop shape in a printing process, comprising the steps of: controlling a piezo element of a printing nozzle by a first voltage profile; detecting an electric current value averaged over the first voltage profile or a sound amplitude averaged over the first voltage profile; controlling the piezo element of the printing nozzle by a second voltage profile; detecting an electric current value averaged over the second voltage profile or a sound amplitude averaged over the second voltage profile; and selecting the voltage profile with the lower detected current value or the lower detected sound amplitude. 2 . The method as claimed in claim 1 , wherein the second voltage profile is determined based on the first voltage profile. 3 . The method as claimed in claim 1 , wherein the second voltage profile is generated by decreasing or increasing a rise time of the first voltage profile. 4 . The method as claimed in claim 1 , wherein the second voltage profile is generated by decreasing or increasing a fall time of the first voltage profile. 5 . The method as claimed in claim 1 , wherein the second voltage profile is generated by decreasing or increasing a hold time of the first voltage profile. 6 . The method as claimed in claim 1 , wherein the second voltage profile ( 107 ) is generated by decreasing or increasing a holding voltage of the first voltage profile. 7 . The method as claimed in claim 1 , wherein the second voltage profile is generated by keeping a holding voltage of the first voltage profile unchanged. 8 . The method as claimed in claim 1 , wherein the second voltage profile is generated by keeping a hold time of the first voltage profile unchanged. 9 . The method as claimed in claim 1 , wherein the first voltage profile is a predetermined voltage profile. 10 . The method as claimed in claim 1 , wherein a plurality of predetermined voltage profiles is stored. 11 . The method as claimed in claim 10 , wherein the first and/or second voltage profile is selected from the plurality of predetermined voltage profiles. 12 . The method as claimed in claim 1 , wherein the method is performed when the printing liquid in the print head or printing system is changed or when a predetermined time has elapsed. 13 . The method as claimed in claim 1 , wherein the method is a three-dimensional printing method for building a spatial object. 14 . The method as claimed in claim 1 , wherein the print head is covered by a closure plate. 15 . A printer configured to perform the method as claimed in claim 1 .
Assignees
Inventors
Classifications
- B41J2/04501Primary
Control methods or devices therefor, e.g. driver circuits, control circuits · CPC title
- B41J2/045Primary
by pressure, e.g. electromechanical transducers · CPC title
preventing formation of satellite drops · CPC title
Height of the driving signal being adjusted · CPC title
using a specific waveform · CPC title
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- What does patent US2024308143A1 cover?
- A method for setting a drop shape in a printing process, including the steps of controlling (S 101 ) a piezo element of a printing nozzle by a first voltage profile; detecting (S 102 ) an electric current value averaged over the first voltage profile or a sound amplitude averaged over the first voltage profile; controlling (S 103 ) the piezo element of the printing nozzle by a second voltage pr…
- Who is the assignee on this patent?
- Ivoclar Vivadent Ag
- What technology area does this patent fall under?
- Primary CPC classification B41J2/04501. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Sep 19 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).