Ink level estimation using drop count and ink level sense

摘要

A printing system including an ink container (110) having a memory (110D) and an ink level sensing circuit (110C), a print cartridge (60) having a memory (60B), and a printer controller (80). Remaining ink level in the ink container is estimated pursuant to ink drop usage information provided by the ink container memory and ink level sense information provided by the ink level sensing circuit. <IMAGE>