Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-33Error Messages and Codes19,005.63: Wave Amplifier overcurrent. This error can occur in too-lowhumidity environments. Printer self-resets.19,0XX.6x Errors - Waveform Program Faults19,001.68 thru 19,039.61: Waveform Printhead calibration program faults.a. Reset NVRAM, and then retest.b. Replace the NVRAM chip.c. Replace the Printhead.21,000.69 Errors - Diagnostic Code Version MismatchThe diagnostic firmware does not match the engine firmware. Update thediagnostic firmware for the printer. If a code updated ROM daughter board isinstalled on the main board, remove the board so the printer boots using themain board’s code and diagnostics.22,0XX.6x Errors - Jam CodesFor jam codes, “Jam Codes” on page 3-48.23,0XX.6x Errors - NVRAM Fault1. Reset NVRAM, and then retest.2. Replace the NVRAM.26,0XX.6x Errors - Printing FaultsReboot the printer if one of these faults occur.Troubleshooting Procedure for Printhead CalibrationStep Questions and Actions Yes No1 For 19,005.41 errors:Check that the Ground Clip (650442700) isproperly installed at the Y-Axis Motormounting and contacts the metallic portionof the Pick Clutch.Is the Ground Clip properly installed?Go to Step 2. Correct orreplace theGround Clip.2 Check and reseat all wiring to the Printhead.Did this correct the problem?Complete. Replace inthis order:■ Printhead■ ElectronicsModule
