MX-B401 Code E7-11

[KMtech69]

Hi All,

I'm working on a sharp MX-B401 that has a code E7-11 that is intermittent. I have reseated all connectors on the scanner board and scanner unit. I also cleaned the optics, glass and the reference plate. Any help would be great.

Thank you in advanced.

[Ratchet2501]

How does the LSU unit look/work? I've got a b402 I'm waiting on parts for that I believe had the same error due to the motor going bad.

[moose55]

Hi All,

I'm working on a sharp MX-B401 that has a code E7-11 that is intermittent. I have reseated all connectors on the scanner board and scanner unit. I also cleaned the optics, glass and the reference plate. Any help would be great.

Thank you in advanced.

I would say that your next step would be to replace the SCU PWB. Make sure the wire harnesses are in good shape (up to the scanner).

[mojorolla]

B401 are notorious for the white reference strip under the platen discoloring. Over time, the glue turns the white strip yellow, causing E7-11.