How do i clear the L error Code on Sharp AR 6020

SOURCE: Error code H4-01

This mean you have low temp. on heat lamp 2 program interput clear interrupt 14 print may clear this code. if not you can look at the fusing unit and reset thrmo breaker that may be pop off.

SOURCE: error code Sharp AR-M 257

The F2-04 error code you are getting is that you are using the wrong toner.It may be form sharp,but it toner chips is different.Only the chips swapping at the toner back can help you.

SOURCE: Sharp AR-5127 H2-00 code reset

Sharp Fuser
H2-0 Fusing unit temperature error
H4-0 The fusing unit doesn't heat up.
***ALWAYS DISCONNECT POWER WHEN WORKING ON MACHINE***
You have to reset fuser errors with simulation 14. Push P * C * then 14 then Start (the button you use to make copies) and it should reset the code. If not then replace the fuser.
SM 5-1 should turn the lamp on. If lamp blinks on and off it is the thermistor, if it does not it is the lamp, but check the contacts on the lamp/fuser -- they have been known to erode.
Also check thermal fuse, if defective replace.

SOURCE: sharp ar 407

Hello sir;There have a procedure to reset;
1, press "program", "interupt", "clear", "interupt"
2, enter 14, then press start,then enter 0, press start again. then press clear.

SOURCE: We have a Sharp AR-335 and it is giving an error

Hello sir; There is the way to reset;
1, press "program", "interupt", "clear", "interupt'.
2, enter 14 press print.
3,turn power off and back on again.