Code :

Code: 990.00
Display: 990.00 Service finisher error
Description: Sensor (stapler carriage HP) on failure
Causes: The sensor (stapler carriage HP) is not turned on within two seconds after the stapler starts moving toward the staple position, and also the sensor (stapler carriage HP) is turned off. Or the sensor (stapler carriage HP) is not turned on after the stapler was moved to the staple position. Or the sensor (stapler carriage HP) is turned off again after the sensor (stapler carriage HP) is turned on, and the stapler stopped its moving.

Code: 990.01
Display: 990.01 Service finisher error
Description: Sensor (stapler carriage HP) off failure
Causes: The sensor (stapler carriage HP) is not turned off within 500 ms after stapler starts moving to the staple position, and sensor (stapler carriage HP) is turned off. Or the sensor (stapler carriage HP) is not turned off after the stapler was moved to the staple position. Or the sensor (stapler carriage HP) is turned on again after the sensor (stapler carriage HP) is turned off, and the stapler stopped its moving.

Code: 995.00
Display: 995.00 Service finisher NV.
Description: Finisher NVM R/W failure
Causes: A read/write error occurred on the NVM of the finisher controller card assembly.

Code: 997.00
Display: 997.00 Service wrong duplex
Description: Duplex controller card assembly type failure
Causes: A duplex controller card assembly of a different specification is installed.

Code: 999.00
Display: 999.00 Service finisher error
Description: Finisher engine/RIP functional failure
Causes: The engine reported a finisher failure that the RIP card assembly did not recognize.