1. Inngangur
This manual provides instructions for the proper use and maintenance of your Casio GX-12B Value Series Desk Top/Compact Desk Type Calculator. Please read this manual thoroughly before using the calculator to ensure optimal performance and longevity.
Helstu eiginleikar:
- Extra Large 12-Digit Display
- Two-Way Power (Solar and Battery)
- 2 Independent Memories
- Item Counter Function
- Mark-up Percentage Aðgerð
- Durable Plastic Keys
- Compact Desk Type Design
2. Uppsetning og aflgjafi
Aflgjafi:
The Casio GX-12B calculator operates on a two-way power system, utilizing both solar power and a single LR44 button-cell battery. For optimal performance, ensure the solar panel is exposed to sufficient light. In low-light conditions, the battery automatically takes over.
Uppsetning/skipti rafhlöðu:
- Gakktu úr skugga um að reiknivélin sé slökkt.
- Finndu rafhlöðulokið aftan á reiknivélinni.
- Using a small screwdriver, carefully remove the screw and open the battery compartment cover.
- Remove the old LR44 battery (if replacing) and insert a new LR44 battery with the positive (+) side facing up.
- Settu hlífina yfir rafhlöðuhólfið aftur og festu það með skrúfunni.
- Ýttu á AC (All Clear) button to reset the calculator.

This image displays the Casio GX-12B calculator, highlighting its approximate length of 8.8 inches (22 cm) for scale. The calculator features a large display and clearly labeled keys.
3. Grunnaðgerðir
Familiarize yourself with the key functions to perform calculations efficiently.
Lykilaðgerðum lokiðview:
- AC: All Clear. Clears all values and operations, resetting the calculator.
- C: Clear Entry. Clears the last entered number.
- + / - / × / ÷: Basic arithmetic operations.
- =: Executes the pending calculation.
- %: Prósentatage key. Used for percentage calculations (e.g., 100 + 10% = 110).
- MU: Mark-up key. Used for profit margin calculations.
- M+: Bætir birtu gildi við minnið.
- M-: Dragur birt gildi frá minninu.
- MRC: Memory Recall/Clear. Press once to recall the memory value. Press twice to clear the memory.
- IT: Item Counter. Counts the number of entries in a series of calculations.
Example Calculations:
- Viðbót: To calculate 123 + 456:
- Ýttu á AC
- Sláðu inn 123
- Ýttu á +
- Sláðu inn 456
- Ýttu á = (Niðurstaða: 579)
- Prósentatage: To add 10% to 200:
- Ýttu á AC
- Sláðu inn 200
- Ýttu á +
- Sláðu inn 10
- Ýttu á % (Niðurstaða: 220)
- Minni aðgerð: To calculate (5 × 3) + (8 × 2):
- Ýttu á AC
- Sláðu inn 5 × 3 M+ (15 is added to memory)
- Sláðu inn 8 × 2 M+ (16 is added to memory)
- Ýttu á MRC (Niðurstaða: 31)
- Ýttu á MRC again to clear memory.
4. Umhirða og viðhald
- Þrif: Wipe the calculator with a soft, dry cloth. For stubborn dirt, use a cloth lightly dampened with water and a mild detergent, then wipe dry immediately. Avoid using strong solvents or abrasive cleaners.
- Geymsla: Geymið reiknivélina á köldum, þurrum stað fjarri beinu sólarljósi og miklum hita.
- Forðastu áhrif: Do not drop or subject the calculator to strong impacts, as this can damage internal components or the display.
- Rafhlöðuending: If the display becomes dim or unresponsive, replace the LR44 battery.
5. Bilanagreining
| Vandamál | Möguleg orsök | Lausn |
|---|---|---|
| Skjárinn er auður eða dimmur. | Ónóg birta fyrir sólarsella eða lítil rafhlaða. | Move the calculator to a brighter area. Replace the LR44 battery if the issue persists. |
| Rangar útreikningsniðurstöður. | Rangt innsláttur lykils eða minnið ekki hreinsað. | Ýttu á AC to clear all operations and memory, then re-enter the calculation. Ensure correct order of operations. |
| Lyklarnir svara ekki. | Low battery, or internal malfunction. | Replace the LR44 battery. If the problem continues, contact customer support. |
6. Tæknilýsing
- Gerð: GX-12B
- Skjár: 12 stafa stór LCD skjár
- Aflgjafi: Two-Way Power (Solar and 1 x LR44 Battery)
- Mál (L x B): Um það bil 20.8 cm x 15.9 cm (8.2 tommur x 6.3 tommur)
- Þyngd: Um það bil 0.32 kg (0.7 lbs)
- Efni: Plast
- Aðgerðir: Basic arithmetic, Percentage, Mark-up, Memory (M+, M-, MRC), Item Counter
7. Upplýsingar um ábyrgð
This Casio product is covered by a Limited Warranty. For specific terms, conditions, and duration of the warranty, please refer to the warranty card included with your purchase or visit the official Casio webGeymið kaupkvittunina vegna ábyrgðarkröfu.
8. Þjónustudeild
If you encounter any issues not covered in this manual or require further assistance, please contact Casio customer support. Contact details can typically be found on the official Casio websíðunni eða á umbúðum vörunnar.





