Ink jet printer cartridge refilling method and apparatus

Details Ink jet printer cartridge refilling method and apparatus Ink jet printer cartridge refilling method and apparatus

1994-03-30

1998-04-21

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 7, B41J 2175, B41J 2195

Patent

active

057423083

ABSTRACT:
An ink jet printer having a travelling ink jet pen with a foam-filled ink chamber. A separate source reservoir includes an ink outlet nozzle connectable to the pen chamber for refilling. A probe on the reservoir partially compresses the foam to decrease its ink capacity during filling. An electrical contact on the reservoir or pen detects over-filling and over-saturation of the foam to stop the filling process. As the foam is decompressed, its increased absorptive capacity accommodates any excess overflow.

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