Sharp mx-m452n error code e7-80

[Khumz]

I m working on a Sharp MX-M452N, the initial problem was PPD2-N1 of which i changed a few sensors but up on switching on machine to test if PPD2-N1 error is cleared suddenly it pops up with E7-80. I m now battling with error E7-80. There is voltage from Mother board to SCU board (24V, 12V, 5V 3V) and i see red light on SCU board. But still the whole scanner section do not initialize at all. I also realized that touch pad and key pads are also not responding.

Any suggestions on how to resolve this problem.

[ihatefinishers13]

Re: Sharp mx-m452n error code e7-80

I m working on a Sharp MX-M452N, the initial problem was PPD2-N1 of which i changed a few sensors but up on switching on machine to test if PPD2-N1 error is cleared suddenly it pops up with E7-80. I m now battling with error E7-80. There is voltage from Mother board to SCU board (24V, 12V, 5V 3V) and i see red light on SCU board. But still the whole scanner section do not initialize at all. I also realized that touch pad and key pads are also not responding.

Any suggestions on how to resolve this problem.

There's a couple things that could be causing it. Even with the code, are you able to check the sensors and see if they change state? The PPD2 codes could also be because of an image timeout error. Run a 22-6 and look on the 5th page for HDD Smart Info. If it's all ZERO's, HDD is fine. If anything else, the hard drive is bad OR the MFP PWB is failing.

MY guess is the MFP PWB, but I wouldn't order anything on my recommendation.

Let us know what else you have done!