Hi Tayaamouhsine,Thank you for using the Xerox forum.You can try to isolate whether a machine accessory or the console itself could be the issue.
to do that I would suggest that you review the following solution.
Isolate the Base Printer to Eliminate Possible CausesThe Phaser 4510 Support & Drivers site has many helpful tips related to control panel issues and replacement.
If those do not resolve your issue you may consider contacting our specific product support experts at the following link:
Fast Track to the Expert