HP LaserJet 9040/9050 Service Manual - Page 227

Table 21. Numeric error messages (continued) Control panel message Event-log Description error message Recommended action 69.X PRINTER ERROR To continue cycle power 69.X A printer error occurred where X is 1 detailed below. 0 The duplex mechanism failed 1 The duplex side-adjust failed 2 3 4 5 Turn off the printer, and then turn the printer on to continue. Reseat the duplexer (make sure that the printer is turned off). Perform a service test. See page 213. Perform a paper-path test. See page 213. If the error persists, replace the duplexer (make sure that the printer is turned off). 79.XXXX PRINTER ERROR To continue cycle power 79.XXXX A critical hardware error occurred. 1 2 3 Turn off the printer, and then turn the printer on to continue. Try printing a job from a different software program. If the job prints, go back to the first program and try printing a different file. (If the message only appears with a certain software program or print job, contact the software vendor for assistance.) If the error persists, try the following: • Turn off the printer, and then turn the printer on again. • Reseat or replace the interface cable. • Remove the DIMMs one at time, turn the printer off, and then turn the printer on again. • Try using the parallel interface. • Upgrade to the latest firmware. • Remove the EIO cards and perform a cold reset. • Remove the hard disk, turn the printer off, and then turn the printer on again. • If the error persists, replace the formatter. Control-panel messages 211