Gain adjustment error Reading the white pixel output of each color from the data provided by the shading plate, the machine makes the gain adjustment for each color so that the maximum value of each color becomes within the specified range. However, after the machine attempts the adjustment three times in total (including two retries), the value is out of the specified range.
1 Reboot the main body. 2 Clean the original glass. 3 Check the connector CN102, CN103 on MFPB for proper connection and correct as necessary. 4 Change scanner unit. 5 Change MFPB.