8
4. Common Fault Clearances
⑴
Power light off, screen display off
①
Check the plugging of power plug.
②
Check the condition of the protector tube inside the power plug.
③
Check the socket electricity.
⑵
No punch through oil cup
①
Check inserting of connectors on circuit board.
②
Check contacting of cap high-voltage switch.
③
Check attracting of high-voltage contacts.
④
Check break of high-voltage line.
⑶
Light display contrast
①
Adjust the potentiometer on the circuit board.
⑷
Printer failure
①
Check plugging of printer power line.
②
Check plugging of printer data line.
