HP M750 series

Install Fuser Unit
Description
The fuser has been removed or installed incorrectly.
Recommended action
CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it.
1. Open the right door.
2. Install or adjust the fuser.
3. Close the right door.
Install supplies
Description
More than one supply is missing or is installed incorrectly.
Recommended action
Press the OK button to identify the supplies that need to be replaced.
Press the OK button a second time for more information about the specific supply.
Insert the supply or make sure it is correctly installed and fully seated.
Install Transfer Unit
Description
The transfer unit is either not installed or not installed correctly.
Recommended action
1. Open the right door.
2. Install the ITB.
NOTE: If the ITB is already installed, remove it, and then reinstall the ITB.
3. Close the right door.
4. If the error persists, use the ITB alienation sensor switch (SW5) in the manual sensor test to verify that
the switch is properly functioning. If it is not, replace the main drive assembly.
5. If the error persists, use the T1 roller engagement and disengagement drive test in the component test
to verify that the ITB alienation mechanism is properly functioning. If it is not, replace the fuser drive
assembly.
6. If the product was recently serviced, check the connector (J181) on the DC controller PCA.
Internal disk not functional
Description
The product internal disk is not working correctly.
ENWW Tools for troubleshooting 471