Question about Sharp AR-407 Copier

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Sharp mxm620u services code h4-1

Services code H4-1

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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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.

Posted on Jun 06, 2008

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SOURCE: SHARP AR C250 Digital Color COPIER HAS SERVICE CODE H4 00

Press P-interrupt-C-interrupt and enter test command 14 and Execute to clear your error. Let your machine reboot. If it comes back you have a problem with your fuser. Most likely it's dirt or toner caked on your tempature sensors and they need to be scraped off.

Posted on Jun 15, 2008

  • 62 Answers

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.

Posted on Jul 30, 2008

  • 7 Answers

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.

Posted on Jun 10, 2009

  • 268 Answers

SOURCE: sharp AR-M237 DISPLAY READS CALL FOR SERVICE CODE H4-20

Use # interrupt c interrupt . Then enter 14 press Print key. If it re-appears, call a specialized technician.

Posted on Jun 26, 2009

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