Service Manual
Page 418
... the diagnostic mode, press CANCEL JOB (HP Color LaserJet 4600 models) or STOP (HP Color LaserJet 4610n and 4650 models) button, and then select Exit. For component or noise isolation, you must perform these steps manually. 402 Chapter 7 Troubleshooting ENWW Never touch any of this is turned on. The printer will generate a 59.90 Printer Error. Before proceeding with these diagnostic tests...
... the diagnostic mode, press CANCEL JOB (HP Color LaserJet 4600 models) or STOP (HP Color LaserJet 4610n and 4650 models) button, and then select Exit. For component or noise isolation, you must perform these steps manually. 402 Chapter 7 Troubleshooting ENWW Never touch any of this is turned on. The printer will generate a 59.90 Printer Error. Before proceeding with these diagnostic tests...