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I see from the post that you are having some issues with your HP Envy 5640 printer. I'll be really glad to help you with this,
Since this is English HP consumer Forums support, I would suggest if you need any assistance please reply to this post in English.
To provide you with an accurate solution, I'll need a few more details:
Do you get any error message on the printer screen or on the computer screen?
Have you made any changes on the printer before the issue started?