Question about Sharp AL 1631 Copier

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L4 error code

I changed the toner and tried to make copy again. The L4 error indicator keep flashing. And I could not operate the machine. Any suggestions will be appreciated!


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Re: L4 error code

Check lens lock switch is unlocked on "ceiling" where paper exits

Posted on Jan 14, 2008

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Re: L4 error code

L4:The Main PWB sensed a Main Drive Motor MOT1 problem.

The main drive motor has a small white helix gear attached to the drive shaft.
Most likely that gear has cracked and is slipping on the shaft.
The main drive motor itself may be bad, either way, the motor will most likely need to be replaced.

Posted on Jan 14, 2008

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The code refers to a toner motor lock error, probably caused by a blocked toner cartridge. If you have a replacement toner cartridge, power the machine off, replace the cartridge & power the machine back on. If the code remains then it may need resetting via the simulation mode. To enter simulation mode, press the following 4 keys in sequence #*C*

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The start button won't turn green when power turned on.

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