![Hello! My casio calculator has this stain-like thing in its screen. It suddenly appeared on a random day. Does someone know what this is and what happened? Is it possible for me Hello! My casio calculator has this stain-like thing in its screen. It suddenly appeared on a random day. Does someone know what this is and what happened? Is it possible for me](https://preview.redd.it/w9vg1dng4ls71.jpg?width=640&crop=smart&auto=webp&s=375cab45e752b7e6c39810f5e12cba16c5115552)
Hello! My casio calculator has this stain-like thing in its screen. It suddenly appeared on a random day. Does someone know what this is and what happened? Is it possible for me
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Casio FX-83GTX PLUS Super School Scientific Calculator Pink in Utako - Stationery, Bsdirect Stores | Jiji.ng
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Casio Scientific Calculator: 8 Best Casio Scientific Calculators in India For A Seamless Functionality (2023) - The Economic Times
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Scientific Calculator Trendy Casio Fx 100ms Scientific Digital Calculator, Size: Mini or Pocket at Rs 900 in Bengaluru
![Casio HS-8V Basic Calculator,Battery Backup, Easy-to-read Display, Big Display, Auto Power Off, Independent Memory, Non-stick Key - Battery/Solar Powered - 0.3" x 2.3" x 4" - Silver - kite+key, Rutgers Tech Store Casio HS-8V Basic Calculator,Battery Backup, Easy-to-read Display, Big Display, Auto Power Off, Independent Memory, Non-stick Key - Battery/Solar Powered - 0.3" x 2.3" x 4" - Silver - kite+key, Rutgers Tech Store](https://cdn.shoplightspeed.com/shops/611777/files/18833733/1500x4000x3/casio-casio-hs-8v-basic-calculator-silver.jpg)