HP 4700 color laser jet printer, 54.xx Error
Printer error, Turn the unit off
then on.
If the printing cannot continue, there is a sensor
malfunction. Check the yellow toner
Remaining sensor ( J1014
Toner level sensor), temperature/
humidity sensor (J1010
Environment sensor).
Check the connectors J501 on the
toner level PCB or J5201 on
The environment sensor. If need replaced the environment
sensor or toner level detection
PCB.
HP 4700 color laser jet printer, 55. error,
A printer command error has occurred.
O1. DC controller memory error, 02. dc controller memory 03. no engine response
04. communication error. 05
RFU error. Codes 01-02 replaced the dc controller, code 03-04 1. reseat
Formatter 2 Check all connection on the dc controller 3 upgrade formatter and dc controller
firmware, which can be found in a single rfu file.