OKI ML521 Manual do Utilizador descarregar pdf (Página 45)

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Service Guide ML520/521

Chapter 2 Principles of Operation

LSI/Printhead Interface

The connection between the LSI and the printhead is made with the bi-directional serial data bus. The LSI

transmits the print data as serial data to the logic circuit of the printhead. The printhead returns serial data

from the printhead sensor analog circuit to the LSI. This information is used to determine the optimum

drive time for the next print request.

The logic circuit of the printhead signals the LSI if a parity error is detected in the print data.

Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

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OKI ML521 Manual do Utilizador Página 45

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