• Code: 40
• Display: 40 EIO X BAD TRANSMISSION
• Description: The connection has been broken between the product and the EIO card in the specified slot [X]. Note: EIO 0 is reserved for the HP Jetdirect embedded print server.
• Remedy: Press OK to clear the error message and continue printing.

• Code: 40
• Display: 40 EMBEDDED I/O BAD TRANSMISSION
• Description: The connection has been broken between the product and HP Jetdirect print server.
• Remedy: 1. Print the configuration and Embedded JetDirect pages to verify that the card status is “Ready,” and that the protocol reads “Ready.” 2. Verify that all the configuration parameters (IP address, configuration method, and domain) are correct. 3. Verify that you are using a working network cable. 4. Verify you can “ping” a network address from the product. 5. Verify that the HP JetDirect print server has the latest firmware. HP JetDirect firmware is part of the product firmware.

• Code: 41.X
• Display: 41.X ERROR
• Description: A temporary printing error occurred.
• Remedy: 1. Press OK to see if the page will print. If necessary, turn the product off and then on. 2. Verify that the loaded paper meets HP specifications. If pages stick together, the paper detect sensors will detect a sheet of paper longer than what is expected in the product. 3. Verify that all paper size settings on the control panel, in the print driver settings, and in the software program match. 4. Verify that the correct size paper is loaded in the input tray.

• Code: 49.XXXX
• Display: 49.XXXX ERROR
• Description: A critical firmware error has occurred that caused the processor on the formatter to cease operation. This 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 product. Other causes can be poor-quality cables, poor connections, or home-grown programs. On rare occasions, the formatter is at fault.
• Remedy: 1. Turn off the product, and then turn it on. 2. Press Stop to clear the print job from the product memory. 3. Turn off the product, and then turn it on. 4. Print a document from a different software program. If the job prints, return to the first program and try to print a different file. If the message appears only with a certain software program or print job, contact the software program vendor for assistance. 5. If the message persists with different software programs and print jobs, disconnect all of the cables to the product that connect it to the network or computer. 6. Turn off the product. 7. Remove all EIO devices from the product. 8. Turn on the product. 9. If the error no longer exists, replace each EIO device one at a time, making sure to turn the product off and on again as you install each device. 10. Replace an EIO device if you determine that it causes the error.

• Code: 50.X
• Display: 50.X FUSER ERROR
• Description: A fuser error has occurred. The values for X are listed below. • 50.1: Low fuser temperature • 50.2: Fuser warm-up service • 50.3: High fuser temperature • 50.4: Faulty fuser • 50.5: Inconsistent fuser (verify voltage model) • 50.6: Open fuser • 50.7: Pressure release mechanism failure • 50.8: Lower fuser temperature • 50.9: High fuser temperature
• Remedy: 1. Power cycle the product to determine if the error is persistent. 2. Verify that the correct fuser model is installed in the product. 3. Verify that the correct voltage fuser is installed in the product. 4. Verify that the fusing assembly is firmly seated in the product chassis. Reseat the fusing the assembly, and listen for a “click” at the end of the assembly when you insert it into the product. 5. Verify that the connection to connector J82 on the DC controller PCA is firmly seated. 6. Inspect the fusing assembly connectors, at the front of the assembly, and the connectors on the high-voltage power supply PCA. Look for bent pins or debris. Clean or straighten the pins if necessary. 7. If the error persists, replace the fusing assembly. 8. If the error still persists, replace the highvoltage power supply.

• Code: 51.XY
• Display: 51.XY ERROR
• Description: A laser/scanner error has occurred.
• Remedy: 1. From the DIAGNOSTICS menu, run the laser/scanner motor component test. Verify that you can hear motor rotate. 2. If you cannot hear the motor rotate, verify that the connections to connector J86 and connector J93 on the DC controller PCA are firmly seated. 3. Verify that the wiring harness at the laser/scanner assembly is securely attached. 4. If the error persists, replace the laser/ scanner assembly.

• Code: 53.XY.ZZ
• Display: 53.XY.ZZ CHECK RAM DIMM SLOT <X>
• Description: There is a problem with the product memory. The DIMM that caused the error will not be used. Values of X and Y are as follows: • X = DIMM type, 0 = ROM, 1 = RAM • Y = DIMM location, 0 = Internal memory (ROM or RAM), 1 = DIMM slot 1
• Remedy: Press OK to continue if you are prompted. If the message continues, you might need to replace the specified DIMM. Turn the product off, and then replace the DIMM that caused the error.

• Code: 54.XX
• Display: 54.XX ERROR
• Description: This message is typically related to a sensor issue.
• Remedy: Turn the product off and then on. Follow the instructions displayed on the product control panel.