no power ,cannot switch on ,tested power modual ,this is O.K sizzling noise when i push power plug in printer,not continuance,How do you dismanlel the caseing?
With the lack of info you have given about your printer, try a big hammer, or, post again with more info, like, make, model, it really helps to get an answer, simples!
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Try fixfault.com to fix printers.