Brother International DCP 8080DN Service Manual - Page 150
Main PCB failure
UPC - 012502622697
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■ Faulty registration 1. ADF Step Cause Check Result Remedy Document rear Does the document rear Re-assembly the document 1 actuator catching actuator move No rear actuator. on some position smoothly? Fine adjustment Is the problem solved by Perform the fine of scan start performing the fine adjustment of scan start 2 position adjustment of scan start Yes position. misalignment position. (Function code 54) (Function code 54) 2. Document table Step Cause Check Result Remedy Fine adjustment Is the problem solved by Perform the fine of scan start performing the fine adjustment of scan start 1 position adjustment of scan start Yes position. misalignment position. (Function code 54) (Function code 54) 2 CCD unit failure Is the problem solved by replacing the CCD unit. Yes Replace the CCD unit. ■ Dark - Check whether the setting of the contrast does not become dark. Step 1 2 3 Cause Check Result Remedy White level data malfunction Is the problem solved by Perform the acquisition of performing the acquisition of white level Yes white level data. (Function code 55) data. (Function code 55) CCD unit failure Is the problem solved by replacing the CCD unit. Yes Replace the CCD unit. Main PCB failure Is the problem solved by replacing the main PCB. Yes Replace the main PCB. 3-78 Confidential