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Your calculator is fine. It is an adding machine first, so it uses adding machine logic and you hit the star button to print the total on the tape. The equals sign is only used when multiplying and dividing.
Adding machine logic is as follows:
5+ total 5
3- total 2
7+ total 9
* print out total
The Casio DR-T220 does not use regular adding machine tape, it requires a thermal tape since it is a thermal printer. There is no ink or ink ribbon in this caculator, it is heat activated and it is the special paper that make the numbers appear. Thermal tape is available at all office supply stores.
I had this same problem on my TI 89...
You must have accidentally set your calculator to insert mode. To switch it back to the thin cursor, input the following keystrokes... Go to the "2nd" key to enter second function mode. Then press the button with an arrow on it pointing to the left(The key that you use to backspace). Do you see the "INS" lettering above the backspace key? There's your solution :-)
Press the Return button and the machine will automatically print the size the tape will allow! :)
Title: What does the error message "CHR SIZE AUTO?" mean?
Description:This message appears when the selected character size is too large for the width of the tape cassette installed.
You have the following options:
Press the "Print" or "Return" key to allow the P-touch machine to automatically select the maximum character size that fits the tape width.
Press the "BS" key to clear the message, and then install a wider tape cassette.
Press the "BS" key to clear the message, and then select a smaller character size by following these steps:
While holding the "Code" key, press the "Size" key. The display will show the current character size.
Keep the "Code" key held, and press the "Size" key until the desired size is displayed. If you select "AUTO", the P-touch machine will automatically adjust the character size to the largest possible size.
Release the "Code" to apply the setting.
If you have the correct size tape installed and still get the error message, please try removing the cassette from the machine and reinstalling it. Also, check that the tape cassette is seated firmly in the compartment.
The following table shows the maximum character size that can be used with each tape width.