| CPC B41J 2/04508 (2013.01) [B41J 2/0458 (2013.01); B41J 2/04581 (2013.01)] | 9 Claims |
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1. A fluid ejection system, comprising:
a frame to retain a plurality of fluid ejection devices disposed on the frame, the plurality of fluid ejection devices including a plurality of arrayed open reservoirs and a plurality of arrayed fluid ejection dies, wherein each fluid ejection device is to align with one of a plurality of microwells and comprises:
an open reservoir of the plurality of arrayed open reservoirs disposed on a first side of the frame, the open reservoir including an opening through which fluid is to be filled;
a fluid ejection die of the plurality of arrayed fluid ejection dies disposed on an opposite side of the frame, wherein each fluid ejection die comprises:
a fluid feed slot formed in a substrate to receive the fluid from the reservoir;
an array of nozzles formed in the substrate to eject the fluid into an aligned one of the plurality of microwells;
a first pair of a heater and a temperature sensor, the first pair formed at an end of the fluid ejection die; and
a second pair of a heater and a temperature sensor, the second pair formed at an opposite end of the fluid ejection die, wherein the first and second pairs correspond to the fluid feed slot disposed between the first pair and the second pair, and correspond to the array of nozzles in the substrate; and
an ejection adjustment system to selectively adjust, based at least in part on an environment temperature and a reading of the temperature sensors of the first and second pairs, an amount of fluid ejected from the fluid ejection devices, using the heaters of the first and second pairs.
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