Mailing machine including ink jet printing having ink availability checking
US6024429A · kind A · utility
27Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00532
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An ink jet printer comprising a replaceable cartridge having a supply of ink and a controller in operative communication with the cartridge. The controller keeps an estimate of an amount of ink remaining in the cartridge and provides a signal indicating that the cartridge is to be weighed in response to a predetermined event. A method of operating an ink jet printer, a postage printing apparatus and a method of operating a postage printing system are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.