How do I fix E3-10 on a Pansonic copier- Model FP-7713?

First it reads it is E3-22 Exhaust fan problem possibly.
Panasonic FP 7713 User Manual Panasonic FP 7713 User Manual

Here is the manual

Do you have can air remove covers exit side of machine, clean vents and remove dust from fans!. If you can remove the fans to clean them better then blowing dust into the machine!!!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Hello sir; I believe your machine run out the developer, you just replace it ,will take care the problem.

What is the Error Code that is being displayed? Need to have a starting point? Need more info. to fix it fast for you.

Hi the the wrench symbol appears when its time for maintenance depending of the type of service needed the copier will shut down, the only why to over come this is to call your service provider for maintenance they will replace what ever parts and or sevice thats needs to be done, they will then enter the code that is need to reset the wrench symbol..
Good Luck

clean the mirrors under the glass and in the black box if that dont work change the drum773 foursevenfour 88 sixfive

E3 - 01

Press paper tray, zoom down key, and #1 keys simultaneously. "F1" displayed. press 8, start,then 09, start. DV will run auto for 3 min. hit stop/clear. F7-22 to clear PM count.Press stop/clear until F1 displayed. Press paper tray, zoom down, and stop/clear to exit maintenance mode.

press and hold paper tray,zoom down,1 simultaniously you will enter in programe.F will come on display press 6 it will appear F6 press stark key change the value and then start key to exit the program press and hold these keys paper tray,zoom down stop key