Question about Office Equipment & Supplies
HL-4200CN ERROR CODE 006-370
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Posted on Jan 02, 2017
The exact meaning of this error code ( 006-370 ) is <IOT ROS Motor Failure>. The SOS signal does not come from the ROS ASSEMBLY. What this means is the printhead, also know as Raster Output Scanner - laser unit. failed to generate a "start-of-scan" or SOS signal.
There is a humidity and temperature sensor in this printer that is designed to prevent the laser from being used in extreamly high humidity situations to prevent damage to the printer. This sensor rarely fails, and that is why it is the least likely cause of a true failure.
If in Fact you are in a high humidity situation. There is nothing wrong with the printer, and it will function normally when taken out of the humidity. Possibly running a dehumidifier in these cases will help. If this is not the case and are certain this is not the problem, then a true hardware failure has occured.
There are 3 possible causes for this failure, and they are listed in the most likely to least likely.
1) the ROS Assembly ( printhead, laser unit )
2) the PWBA MCU ( printed wiring board assembly - Machine control unit ).
3) Sensor assembly. ( humidity and temperature sensor )
Posted on Oct 02, 2008
Condensation may have occurred inside the printer.
Do not use the printer for more than one hour.
If this does not solve the problem, contact Dell.
See "Contacting Dell" in the Owner's Manual.
Posted on Jun 04, 2009
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