Liquid ejecting apparatus, method of controlling liquid ejecting apparatus, and program for controlling liquid ejecting apparatus
US-2015375499-A1 · Dec 31, 2015 · US
Defective printer nozzle compensation control
US8939535B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939535-B2 |
| Application number | US-201113229848-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2011 |
| Priority date | Sep 28, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Ink ejection problems of black ink nozzles are compensated for by forming dots by mixing cyan, magenta, and yellow inks without reducing print quality. When a nozzle that discharges black ink becomes unable to properly eject ink, cyan, magenta, and yellow inks are ejected from respective nozzles to the discharge area on the recording medium to which the defective nozzle should eject ink. The volume of cyan, magenta, and yellow ink that is ejected is set based on the amount of black ink that should be ejected by the defective nozzle.
First claim
Opening claim text (preview).
What is claimed is: 1. A control method for a printing device that has a printhead having a plurality of nozzles configured to eject black ink and a plurality of nozzles configured to eject other colors of ink onto a recording medium based on print data, and that prints by compensating for any of the plurality of nozzles for ejecting black ink that is detected to be a defective nozzle that cannot eject ink normally, the control method comprising: performing a defective nozzle comp…
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Operations & Transport · mapped topic
- B41J2/2139Primary
Operations & Transport · mapped topic
Electricity · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8939535B2 cover?
- Ink ejection problems of black ink nozzles are compensated for by forming dots by mixing cyan, magenta, and yellow inks without reducing print quality. When a nozzle that discharges black ink becomes unable to properly eject ink, cyan, magenta, and yellow inks are ejected from respective nozzles to the discharge area on the recording medium to which the defective nozzle should eject ink. The vo…
- Who is the assignee on this patent?
- Yamamoto Yuko, Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification B41J2/2139. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).