DIAGNOSTICS
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Test pattern
[Check item]
This test pattern is intended to determine if the electronic RDH board or image processing board is abnormal
in the case where the copy image is abnormal despite the 36 mode pattern being normal.
If the 36 mode pattern is normal but the test pattern is abnormal, there is an abnormality in either the elec-
tronic RDH or the image processing board.
37 Electronic RDH GA built-in pattern