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RECORDING SECTION
4.8
BJ (Bubble Jet) Printer
With a BJ printer, the ink is made to bubble to change the state of the ink
and cause ink drops to be ejected to print the image by suddenly changing
the state of the ink by heat generated from the heater.
4.9
Printing by Bubbles
The following figure shows the operating principle of BJ printing.
4–48
Ink
(1)
(2)
(3)
(4)
(5)
(6)
Fig. 4-57 Principle of Operation of BJ Printing
Nozzle
Heater element
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