Replacement; Printer Error Lock - Canon P20-DX User Manual

Replacement

Low battery voltage may cause printing defects, random paper advances or the
inability of the "C" key to clear the overflow.

Printer Error Lock

When the printer is on, low battery voltage may cause printer error lock. In this
case, depress the "C" key to clear the error lock, and the calculator can be used as
an ordinary display model. However, the batteries should be replaced as soon as
possible.
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