Reset fuser on sharp ar-507

SOURCE: Sharp AR-M237 Error Code H4-21

-H4-21 means:Sub heater lamp abnormally low temperature detection. The setup temperature (about –25°C: Sim 43-1-1) is not reached within the specified time (about 32sec) from turning on the power ON SW. (When the temperature falls below 140°C in the standby mode.)
-Causes:
Sub heater thermistor defect
Sub heater lamp failure
Sub thermostat failure
Control PWB failure
-Check the sub heater lamp blinking with SIM 5-2-2.
When the lamp blinks normally: Check the thermistor and the harness. Check the MCU PWB thermistor input circuit.
When the lamp does not light: Check for disconnection of the heater lamp and thermostat. Check the interlock switch. Check the power PWB and the MCU PWB lamp control circuit.
Clear the display of self-diagnostics with SIM 14.
The H4 errors will not reset by themselves. You must enter service mode to reset this error even if the problem has been repaired. The reset process is outlined below (DO NOT USE ANY OTHER FUNCTIONS IN SERVICE MODE):
Press the following sequence: "#/P" "*" "C" "*"
Type in 1 4
Press start
hit 1 for yes
hit start
Unit should power off and the restart.
If the error code recurrs ther are other problems.

Tim Babcock

• 2794 Answers
• Posted on Jul 26, 2008

SOURCE: Error code H4-01

That error code indicates that the fuser unit isn't heating up. Try turning the power off, wait 30 seconds, turn the power on. If the error reappers the fuser unit should be checked by a technician to correct the problem.

SOURCE: I have a sharp copier, model AR-285, H4-01

H4 error pertains to lamp errors.

that would either be the copy lamp or the heater lamp.

check both lamps.

with heater lamps,it's usually caused by either a broken heater lamp or a dirty thermostat on the heater roller assembly.

SOURCE: error code h5-01 appeared on my sharpmar-507

You had 5 jams in the fuser. Clear the jams first. Make sure all sensors are clear. You may need to reset the thermoswitch on the fuser. You will need to remove the fuser to do that. Next press in sequence within 7 seconds #/P Int C Int buttons, then 14, then copy start, yes on the LCD. The copier should recycle and be up and running. Good luck.

SOURCE: IS there a reset code for a Sharp AR-507 copier,

enter simulation: pound, interrupt, clear, interrupt, then enter 14, press start,press execute on touch screen, press ca until copier restarts, this is a general clear code, if problem returns you will have a heat problem in the fuser.