Ink ejecting device
US5530461A · kind A · utility
7Cited by
2References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1994 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1652
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cleaning operation is directed by a CPU of an ink ejecting device every predetermined number of characters printed or when the power is turned on. The cleaning counter counts the number of cleaning times, the comparator compares a value in a table in ROM with the count value in the counter, and a message informing the user of the need for head replacement is displayed on the display of the operational panel when the numbers agree. Therefore, this ink ejecting device can inform the user of the appropriate time for head replacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.