Projector projected onto the screen image fuzzy?

Projector is new and what should be emphasized, the remote control is in English, I do not know how transfer? Who told me, be grateful!, If successful, so I will answer additional points, please help!!

remote control if there is focus on the key is to transfer the focus, you can transfer it clear that if the above is no remote control, will be adjusted manually, usually by Projector lens can be left on the knob adjustment, you can transfer images clearly!

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