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An error or an overflow condition is indicated by an E at the left of the display. All keys except I and
2 are then inoperative. To continue the calculation, press I. To clear the calculator completely,
press 2 0 2.
An error condition occurs when any number is divided by zero (all keys except 2 are inoperative). An
overflow condition occurs when an accumulated total or result has more than 12 digits to the left of the
decimal point.
¦ Be sure the batteries are not depleted and are correctly installed; if the optional adapter is used,
both ends must be connected.
¦ If you are obtaining calculation errors or the calculator does not respond to keyboard entries:
1. Press 2 0 2. The display should be 0.
2. Check the switch settings. The most common positions are:
POWER: PRT, ROUND: 5/4, DECIMAL: F, SIGMA: OFF.
3. Turn the POWER switch OFF for 10 seconds, then ON and try the calculation again.
¦ If you are getting a faint printout or none at all:
1. Be sure the POWER switch is set to PRT or IC.
2. Check the ink roller for proper installation and sufficient ink supply.
Replace or reinstall as indicated.
If none of the above procedures corrects the difficulty, make a last check with a new ink roller before
returning the calculator for service to your Texas Instruments retailer.
ERROR / OVERFLOW
IN CASE OF DIFFICULTY
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