HP LaserJet 4350 HP LaserJet 4250/4350 Series - User Guide - Page 163

Interpreting control-panel messages (continued) Control panel message Description 51.XY ERROR For help press alternates with 51.XY ERROR To continue turn off then on A temporary printing error occurred. 52.XY ERROR For help press alternates with 52.XY ERROR To continue turn off then on A temporary printing error occurred. 53.XY.ZZ CHECK RAM DIMM SLOT To continue press There is a problem with the printer memory. The DIMM that caused the error will not be used. 54.XX ERROR To continue turn off then on This message is typically related to a sensor issue. Recommended action 1. Turn the printer power off and then on. 2. If the message persists, contact an HP-authorized service or support provider (see HP customer care). 1. Turn the printer power off and then on. 2. If the message persists, contact an HP-authorized service or support provider (see HP customer care). You will be prompted to press (SELECT button) to continue in the following cases: ● 1 or 2 DIMMs where the only error is ZZ=04 ● 2 DIMMs where one is good and the other has an error with ZZ=01, 02, 03, or 05 ● 2 DIMMs where one has an error with ZZ=04 and the other has an error with ZZ=01, 02, 03, or 05 Values of X and Y are as follows: ● X = DIMM type, 0 = ROM, 1 = RAM ● Y = Device location, 0 = Internal memory (ROM or RAM), 1 or 2 = DIMM slot 1 or 2 If the message continues, you might need to replace the specified DIMM. Turn the printer power off, and then replace the DIMM that caused the error. Turn the printer power off and then on. If error reappears, record message and contact an HP-authorized service or support provider (see HP customer care. ENWW Understanding printer messages 151