HP 8550dn HP Color LaserJet 8550, 8550N, 8550DN, 8550GN, 8550MFP Printer - Use - Page 139
Service, Cycle Power, Access Denied, Calibrating, Canceling Job, Check Stapler, Clear Jammed, Staple - clean density sensor
UPC - 088698946428
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Message 79 SERVICE (XXXX) CYCLE POWER ACCESS DENIED CALIBRATING CANCELING JOB CHECK STAPLER DEVICE alternates with CLEAR JAMMED STAPLE CLEAN DENSITY SENSOR CYCLE POWER Description Recommended Action The firmware has detected an unrecoverable error. X Description 01XX = IO ASIC Register Error 02XX = Video ASIC Register Error 03XX = IDE ASIC Register Error Turn the printer off and on to reset the printer. If the condition persists, contact a local authorized HP dealer or service representative for service. A user has attempted to select a menu value while the printer control panel locking is enabled. See the system administrator for access to the printer control panel. The printer is adjusting the density sensor. No action is required. The printer is canceling the current print job. No action is required. A staple jam occurred. Clear the staple jam. The density sensor values are out of range or inconsistent. The density sensor might be dirty or the transfer drum might be damaged. Clean the density sensor. Then turn the printer off and on to reset the printer. If the problem is not resolved, clean the transfer drum. If the condition persists, contact a local authorized HP dealer or service representative for service. For information on cleaning the printer, see "Cleaning the Density Sensor" and "Cleaning the Transfer Drum" in chapter 8. 138 7 Printer Control Panel Messages EN