Reconnect the data cable (not applicable to Wi-Fi, Bluetooth or Infrared). Press Power to turn the printer back on, then trying printing again. If the printer still doesn't work correctly, and the carriage is accessible, remove and replace the ink. Please repeat the steps above. If the steps provided do not resolve this concern, it suggests
With the Power button still held, press the Stop button 5 times to make the printer enter the Service Mode, and then release the Power button. Next, press the Stop button thrice and then the Power button once to print a Service Page. Finally, press the Stop button 5 times, followed by the Power button one last time.
Contact your nearest Canon service center to request a repair. Note For details on how to resolve errors without Support Codes, see Message (Support Code) Appears .
this problem generally happens when your paper was jammed in the printer so to remove it firstly take out your power cable "because till the printer will sho
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canon g2000 support code 5100