https://tweakers.net/productreview/78872/samsung-ml-2165w.html
Samsung ML-2165W - DeNachtwacht - Product reviews - Tweakers
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https://epson.com/faq/SPT_V11H817020~faq-000083e-pl975w_2265u?faq_cat=faq-8796158732364
faq-000083e-pl975w_2265u | SPT_V11H817020 | Epson PowerLite 2165W | PowerLite Series | Projectors |...
If your Epson Pro L975W or PowerLite 2265U buttons don't work, they may be locked. Hold Enter on the control panel for seven seconds to unlock them.
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