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You may have a polygon motor defect. Replace and you will have an LSU good as new.

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I agree with Blackcat

F3 in SF-2030 is a lift up problem in the cassette tray. You may have a broken gear in the lift-up assembly. You can purchase this gear in Olsonbros.com

I agree with Blackcat. You have to get a manual to understand more on SIM 44-2 an other trouble for this model.

both are the same whether its generic or original brand for AR-153 or AL-series models.

What do you need to reset? What's the alhanumeric display on the operational panel board? Ineed to know the trouble code display so I can tell you the reset code.

Press Clear Key, interrupt key, shift key, interrupt key, 16 Start (Print) key.

Help! This is the first time that I came across this problem on Sharp copier model AR-5316 which shows "d" on the display LED right after the unit is switch on. ...

If the trouble L1 still occurs, then it will be on the main PWB. There's a technical bulletin from Sharp for the repair on this particular trouble.

Check your toner sensor.....maybe it is busted and need to be replaced.

Have you checked and cleaned the main and transfer charge unit? Please clean the corona wires and see if the copy has improved.....

The IC chip on the toner cartridge will blink and that will be time to replaced with a new cartridge. If you are doing refills from a bottle, then I suggest to refill it before the toner are totally...

Check your corona main charge corona wire if it is not broken. Replace if it is. To check your developer MG roller if it will turn when you run the machine, pull out the developer unit and put a...

Do a simulation check on the home position sensor. This is the U-shape sensor just below the scanner assy at home positon. See if it is okay. Probably it needs just a little bit of cleaning to remove...

Try to make a test copy from the bypass tray and if it passes through without paper jam, then there's nothing wrong in your PS clucth.
If the paper jam occurs only when you are using the paper...

We have the same analysis with blackcat. If you try to disable the sorter and try to make copies and see if there still a jam after each copy. If there is, then the fault maybe is in your exit...

F2 is probably caused by the drum mark sensor. Please check if the drum mark on the drum is not scratched otherwise F2 will display. On the other hand you have to press and hold the print key to see...

you need to check the left exit panel if the actuator is not broken when you open and close this panel.

you have to replace the polygon motor inside the Laser unit...

Most likely you have a dirty laser unit (LSU). It needs a technician to remove and open the LSU in order to clean the mirrors & polygon mirror motor.

blinking L1 might be caused by the locking mechanism just below the scanner. Another cause could be your main board defect. Sharp has a technical bulletin regarding this problem.

you may have a busted thermostat in the fuser section if it will not reset thru the usual reset procedure.