How to go service mode Cannon ir 400 ?

<span>Hi,<br /><br />For error code E004-001 or E004-002<br /><br />Cause:<br />The SSR has a short circuit.<br />&bull; The SSR has an error.<br />&bull; The DC controller PCB has a fault.<br />The heater relay has an error.<br />&bull; The heater relay has an error.<br />&bull; The DC controller PCB has a fault.<br /><br />Description:<br />&bull; The fixing heater remains<br />on.<br />&bull; The fixing temperature has<br />increased abnormally.<br />The heater relay remains on.<br /><br />FIRST TRY TO CLEAR ERROR:<br />Resetting Errors<br />1. The following error codes cannot be reset by merely turning off and then on the main power.<br />They require resetting in service mode:<br />E000, E001, E002, E003, E004, E032, E717<br />1) Start service mode, and select COPIER&gt;FUNCTION&gt;CLEAR&gt;ERR.<br />2) Press the OK key.<br />3) Turn off and then on the main power.<br />2. Error codes other than the above may be reset by turning off and then on the main power.<br />n Detail Code<br />Some error codes offer detail codes, which may be checked in service mode:<br />COPIER&gt;DISPLAY&gt;ERR (3rd block from the right)<br /><br />SERVICE MODE: <br />1) Press the asterisk key ' * ' on the control panel.<br />2) Press '2' and '8' on the keypad at the same time.<br />3) Press the asterisk key ' * ' on the control panel.<br /><br /><br />If these doesnt helps, you need to call service to locate the fault, which is probably bad thermistor.<br /><br />Hope that helps!<br /></span>