Epson Stylus Pro 9000 Service Manual - Page 42

EPSON Stylus Pro 9000 SERVICE REQ. 00010002 Problem PF motor overcurrent Feedback from the PF motor driver (IC35) indicates that the PF motor's current is irregular. Solution Replace the PF motor Replace the Main Board SERVICE REQ. 00010003 Problem PFin-position time-out The in-position time is the amount of time the printer waits to make sure the PF Roller is not moving when the motor comes to a stop. If the rotary encoder sends a pulse during the in-position time, then the PF Roller is moving even though it's supposed to be at a full stop, and this generates an error. Solution Replace the PF motor Replace the Main Board SERVICE REQ. 00010004 Problem CR motor (linear) encoder check error When the CR motor turns, the printer checks the linear encoder output signals to make sure the motor is turning at the correct speed and distance. If the encoder doesn't send the correct output data, an error occurs. Solution Make sure there is nothing blocking the carriage. If that does not solve the problem, check the linear encoder's connections. If there still is a problem, try the following. Check the plastic encoder strip (timing fence) for soiled areas, obstructions, and damage Replace the linear encoder sensor Replace the CR motor Replace the Main Board SERVICE REQ. 00010005 Problem CR motor out of step The length of the CR motor's pulse is too long or too short compared to the normal pulse. Solution See the solution for Service Request 0010004, above. Troubleshooting 42