Certified solution for the HP LaserJet Pro 400 m451dn which randomly at start up have the 59.C0 error and also when attempting to print keep making a noise but not printing. As I explained before this issue was related to a solenoid that helped initialize the printing process. That solenoid in question was serviced and in this video we show it in action. We did about 20 plus prints as well as put on and turn off the machine a few times to see if the error ever occured. Everything works fine now,