Increased startup pulse warming temperature to improve pen startup reliability
US6513895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16517
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal inkjet printer is provided. The printer has a sensor that detects the operating temperature of its printhead. If the temperature of the printhead is below the printhead's normal operating temperature when the printer is going to start to print an image or document, the operating temperature of the printhead is set at a temperature higher than its normal temperature. This is to ensure that the drop-volume of the printer stays at an optimum level when the printer is beginning to start to print the image or document after a period of non-use. Shortly after the printer has started the printing task, the operating temperature of the printhead is reduced to its normal operating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.