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Sometimes the touch screen of Toshiba 450 copier works and sometimes it doesn't.

Turn it off first, press and hold 0 and 8 to turn it on, and let go when you hear the beep. Press the number 692, upper left corner and lower right corner, slowly. If it really doesn't work, call the maintenance personnel.

If you are in Guangzhou, our company can explain the maintenance.

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