I Have error code E000007 - 001 on Canon C9060 pro

Fixing belt full displacement error (Displacement
direction is unknown.)
Full displacement of the fixing belt was detected, but the
displacement direction (front, rear) was unknown.
1. Forgot to clear the counter at the fixing belt
replacement -> clear the counter
2. Check physical relationship between the fixing belt
position sensor 1, 2 (PS71, 72) and the sensor flag
A. In case that both sensors are blocked from light
A-1. Faulty fixing belt unit -> replace the fixing belt
unit
A-2. Faulty fixing belt displacement control drive ->
replace the displacement control drive assembly
B. In case that both sensors are not blocked from light
B-1. The connector on the fixing belt position
sensor 1, 2 (PS71, 72) is physically removed,
or the cable is disconnected -> connect the
connector, or replace the harness
B-2. Faulty fixing belt position sensor 1, 2 ->
replace the sensor
B-3. Faulty fixing belt unit -> replace the fixing belt
unit
B-4. Faulty fixing feed driver PCB -> replace teh
fixing feed driver PCB
B-5. Connection error of drawer connector (J8023)
-> clean or replace drawer connector
B-6. Short-circuit or open-circuit of harness
between fixing feed driver and DC controller
PCB -> replace harness