FUJITSU 50FH5037E-02 - Manual (Page 40)

This signal indicates that the subscanning video data is valid.
(4) V0 to V7
These signal lines carry the scanning video data. Logical ™0∫ indicates a black dot.
(5) FAIL
This signal indicates that a device error (MPU ROM/RAM error) has occured in the
scanner.
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