Method and apparatus for preheating a printing medium in a hot melt ink jet printer
US6161930A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jun 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/0024
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Before print is made by letting hot melt ink gush out from the nozzle head, paper is heated rapidly to its required temperature, thus enhancing the ink fixing performance of the print. Relative to paper carrying rollers, a preheat platen with preheater on its back side is located upstream in the carriage passage and a main platen with main heater on its back side is located downstream in the carriage passage. Downstream of the main platen are installed a cooling platen, which is cooled by first and second air intake openings to allow air to pass into the printer, and paper ejecting rollers. The surface temperature of the preheat platen is set higher than that of the main platen so that the temperature required for unprinted paper will be reached rapidly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.