HP Color LaserJet &Mono 9050,5550 Series Printers - 49.xxxx Service Errors

49.XXXX errors, including 49.FF04 , 49.FF07 ,49.FF08 , and 49.FF09 Service error could be hardware or software errors.

 A critical firmware error has occurred that caused the processor on the formatter to abort operation. This type of error can be caused by invalid print commands, corrupt data, or invalid operations. In some cases, electrical noise in the cable can corrupt data during transmission to the printer. On some occasions, the formatter is at fault, which is usually indicated by a 79 service error.

Press CANCEL JOB to clear the print job from the printer memory. Reboot the printer. Try printing a job from a different software application. If the jobs prints, go back to the first application and try printing a different file. If the message appears only with a certain software application or print job, it most likely is a problem with the application. If the message persists with different applications and print jobs , disconnect all cables to the printer that connect it to the network or PC.

Turn the printer off. Remove all memory DIMM's or third-party DIMM's from the printer.(Do not remove the firmware DIMM in slot J1.) Remove all EIO devices.  Turn the printer on. If the error no longer exists,re-install each DIMM and EIO device one at a time, making sure ti turn the printer off and back on as you install each device. If you determine a DIMM or EIO device has caused the error,replace it. If the error persists, Replace,Jet direct DIMM or firmware DIMM.