HP Color LaserJet Enterprise CP4020 Service Manual - Page 413

Event log message 54.1E.XX 54.20 54.21 54.35 55.06.01 55.06.02 55.901C 61.00.01 67.XX.00 68 8X04 ENWW Description Comments Halftone calibration error ● XX = 00 Bad internal data ● XX = 01 Bad external data ● XX = 02 Memory allocation ● XX = 03 No default tables ● XX = 04 Bad parameters ● XX = 05 Cyan data is out of range. ● XX = 06 Magenta data is out of range. ● XX = 07 Yellow data is out of range. ● XX = 08 Black data is out of range. ● XX = 09 Cyan data is noisy. ● XX = 0A Magenta data is noisy. ● XX = 0B Yellow data is noisy. ● XX = 0C Black data is noisy. Media sensor is not calibrated Scanner beam adjustment warning ● XX = 01 First scanner ● XX = 02 Second scanner Drum speed adjustment abnormality warning The DC controller NVRM has an abnormal read/write. 1. Turn the product off then on. 2. If the error persists, replace the DC Controller. See DC controller PCA and tray on page 161. The DC controller NVRM is not accessible. 1. Turn the product off then on. 2. If the error persists, replace the DC Controller. See DC controller PCA and tray on page 161. DCC restored DCC NVRAM was restored from the formatter. Color table error This event occurs when the color table cannot read a table from the disk and the component reverts to the version in RAM. The file could be corrupt, missing, or the disk could have failed. No messages display on the control panel. A system variable (XX) is out of range. The permanent storage date does not match the engine. Tools for troubleshooting 381