User Manual

Table Of Contents
1. Turn the printer off, and then on.
2. If the error persists, contact your HP-authorized service or support provider, or contact customer
support at www.hp.com/go/contactHP.
Recommended action for call-center agents and onsite technicians
1. Use the developer engagement and disengagement drive test in the Component Test Menu to
verify that the disengagement mechanisms are functioning correctly. If they are not, replace the
developer alienation motor.
Part number: RK2-2415-000CN
2. Use the manual sensor test to verify that the developer disengagement sensor (SR11) is functioning
correctly. The sensor is located inside the main drive assembly and cannot be reached for testing.
Disconnect the connector (J112) at the DC controller while in manual sensor test mode to verify the
sensor operation. If it is not operating, replace the main drive assembly.
Part number: CC493-67915
3. If the printer has been serviced, check the intermediate connector (J87) of the developing
disengagement sensor, the connector (J112) on the DC controller PCA, the connector (J38) of the
developing disengagement motor, and the connector (J261) on the high-voltage power supply D
PCA.
4. Replace the main drive assembly.
59.00.F0 T1 alienation mechanism failure
T1 alienation mechanism failure.
Recommended action for call agents
1. Remove and re-install the ITB. Ensure it is correctly installed.
2. If the error persists, send an on-site technician with the SR9 sensor assembly and the following
instructions.
Part number: WG8–5659–000CN
Recommended action for on-site technicians
1. Remove the ITB and use the manual sensor test to verify that the T1 roller alienation sensor (SR9)
flag is functioning correctly.
274 Chapter 6 Numerical control panel messages