Casio DR-250HD Calculator "clean calculators" Questions

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...clean keys ? keys wont work You have nothing to lose! I have successfully cleaner many keys in calculators and keyboards. You might want to take pictures as you take it apart, so you can successfully ...

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Question about Canon Office Equipment & Supplies

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...that is not an option the device needs to be dis-assembled and the switch flushed with electronic cleaning spray inside the switch contacts and slide it back forth to clean the points "two or three ...

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Question about Casio Office Equipment & Supplies

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Can I take the cover off my casio HR-15OTE desk calculator? how do i take he cover off to clean buttons? There's no need to take the cover off. Use a fresh piece of 'blue tack' (white doesn't work as ...

Question about Texas Instruments Office Equipment & Supplies

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...dark and cannot see anything. Tried 2nd and adjusting color but doesn't work. must open case, and clean the keyboard board, must be contamined with battery fluid.(Corrosive), use a Pen eraser to ...

Question about HP Office Equipment & Supplies

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The "on" key of my 48SX is not functioning properly. If I rap the on key with my finger hard several times it will come on. To turn the calculator off I just let it time out. Can the contacts be ...

Question about Office Equipment & Supplies

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cleaning the print head I have forgot how to clean the print head on my old adding maching(calculator) it is a TI-5040 can you help I just 'adoped' my parents old TI5040 this weekend (5/31/08) and ...

Question about Texas Instruments Office Equipment & Supplies

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...and carefully seperate the rubber pad from the circuit board, take rubbing alcohol with Q-Tips and clean the area in question, making sure the pad and the circuit board are good and clean in

Question about Casio Office Equipment & Supplies

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...answer is 8. but I think you wanted to ask that the calculator gave wrong results. If so remove and clean the pads, warm off the pads, clean battery contacts and reset. to divide 96 by 12, on your ...

Question about Texas Instruments Office Equipment & Supplies

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i replaced the batteries and my calculator still won't turn on Your problem may be due to corrosion on the battery contacts inside the calculator which can prevent the full power of the batteries from

Question about HP Office Equipment & Supplies

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the enter key stopped working is there a way to clean the contacts on a hp 50g calculator? I spilled some tea on it 2 weeks ago, dried it very well for 2 days and it appeared to be fine. yesterday, ...

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