Carriage PCA
The carriage PCA is based on that of the DesignJet 650C. It connects to the main PCA through a long 602conductor (2x30) trailing cable. The carriage PCA contains:
Optical line sensor
Thermistor circuit
Linear encoder
Cartridge nozzle firing circuit
Some electronic components on the DesignJet 250C and 350C carriage PCA are not present on the DesignJet 230 and 330 carriage PCA. At power2on the plotter firmware identifies whether the carriage is for a color or a monochrome model, and behaves accordingly.
Front Panel PCA
The plotters use the same front2panel PCA as the DeskJet 550 and DesignJet 220.
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