F2 40 error in Sharp AR=5520 copier - Sharp Office Equipment & Supplies

F2 code means a problem with toner cartridge error. Sometimes F2 is caused by loss or broken harness in the scanning section, in this case, it sometimes displays an E7 code. When f2 flashes on display just press the Start key you will receive a subcode. If the subcode is F2-02 this is a toner supply problem. If the F2-04 toner chip is damaged, replace the chip. If the F2-40 developer is damaged, change the developer

• Clean toner cartridge CRUM chip contacts and check if cartridge destination is proper for your area.
• This code you may have to clean out the developing unit and start with a fresh developer. Make sure the developer unit is not leaking from one of the bearings. You may need a tech for this one.
• Replace the toner cartridge.
• Change the developer.

If you find your parts, then replace the parts and error still remains, after automatically reset the error code. If the error is still showing even after the above solutions, then you have no choice other than calling Sharp service technician.