How do i resolve the red triangular light blinking on my newly acquired Sharp AR 6020 photocopying machince?

SOURCE: sharp copier m550n

L4-03 is a lock of the fusing motor. It's likely you need to have the fuser rebuilt. You can try resetting the error by turning off the main power switch (located behind the front door under a little plastic cover) and back on. It's likely the error will come back. There's a cleaning screen on the lower fuser roller which gets gummed up with toner and sticks to the lower fuser roller causing it to seize and the motor not to be able to turn causing the L4-03.

SOURCE: Sharp AR-5316 photocopier & printer driver

Sharp AR-5320 photocopier/printer is in share network. for each printing command ,its asking to install driver.and its taking more time for printing..

SOURCE: MY SHARP AR-5320E COPPIER SHOWING CH ERROR CODE

Some part/ unit (developer, drum, imaging unit, fuser) or something else is not installed properly or is not plugged into the machine. Check all assemblies that can be removed from the copier, and make sure they are installed and plugged in properly.

The 'ch' code will automatically reset when the fault is found.

SOURCE: SHARP AR M-205

Hello sir; this error code require reset the procedure as follow;
1, press "#", "interrupt", "clear", "interrupt".
2, enter 14, press start.
3, turn power off and back on

SOURCE: a new sharp ar 5316e photocopy machine photocopy blank

change the main charger because based on my experienced it has an arching problem