Epson Stylus Pro 5000 Service Manual page 72

Stylus Pro5000
Table 3-14 .Abnormal Phenomenon:
LED Indicates "Fatal Error". (Continued)
Step 5: Checking the Pump/ASF Motor (2)
After ink is absorbed properly from the printhead by the pump
mechanism, the built-in ASF resets. When drive is not properly
transmitted to the ASF, it causes the motor to rotate abnormally because
of lack or excess of drive produced in the mechanism. If "Fatal Error"
occurs as a result, check the following:
T
Check that the gear (white) sticking out from the bottom the pump
frame is properly set so that torque is transmitted to the root of the
basic rack (See Chapter 2.) in the gear train at the right of the
mechanism frame. Note that gears in the gear train must be engaged
with each other at right phases, as listed below, and a wrong phase
may stop the whole gear train mechanism at worst.
*Phase: Enables the gears with specified notches on them to
engage with each other so that they drive properly.
1. Between the paper load roller driving transmission gear and the
double clutch gear
2. Between the double clutch gear and the paper return transmission
gear (white)
3. Between the white and cream paper return transmission gears
4. Between the paper return transmission gear on the timing belt and
the paper return transmission cam
5. Between the paper return transmission cam and the paper return
drive roller
6. Between the cam gear in the friction release gear train, 2
transmission gears inside the frames, and the paper return driving
cam gears (for both frames)
T
Check internal coil resistance for the solenoid.
Specification: 115
Check points: Between Pins 1 and 3 or Pins 2 and 4 for CN16 on
the C228DRV board
(Between Pins 5 and 11 for CN8 for the option.)
If resistance is infinitive, replace the motor.
Rev. A
Table 3-15. Abnormal Phenomenon:
LED Indicates "Maintenance Error".
Remedy
One of the waste ink counters has passed the limit. Refer to Chapter 1 or
Chapter 6 and clear the error.
WARNING
The printer is equipped with the following 3
different waste ink counters A, B and D, which can
be found in the self-test. Be careful not to replace
the corresponding waste ink pad only, since all
the counters reset at a time when the
"Maintenance Error" is reset.
Chapter3 Troubleshooting
3-7