HP LaserJet 1320 Fatal Error

@PrinterSurgeon Welcomes you to watch my video about HP LaserJet 1320, HP LaserJet 1320n Fatal error.
HP LaserJet 1320, when powered on engine starts, panel light blink and then become solid on.
There is a fatal error in the printer.

[@fatimaawais1368]

Sir mera b yhe laserjet 1320 printer ha ye problem ker reha ha k dono lights on rehti han or green button push kerny se orange light off ho jati ha .. ap bta sekty han k kya error ha ..?

[@PrinterSurgeon]

In HP Laserjet 1320 fault indications are different for different faults, and printer indicates these error with panel lights combination.
HP LaserJet 1320 has 4 lights on its panel, from tom to bottom 1st orange light (3 dots) is toner & cartridge indication light, 2nd orange light is caution, 3rd green light is Ready and DATA light.
If all lights are on, it is called FATAL error which is because of many reasons, such as Fuser is faulty, scanner is faulty, thermostat is faulty, etc.

[@PrinterSurgeon]

In your case I can't determine that which two lights you are talking about?
I need details and short video or photo of printer error state to determine exact indication of printer.