Pf Motor Pwm Output Faulty (00010010); Head Driver (Tg) Temperature Error (0001001B) - Epson Stylus Pro 7600 Service Manual

EPSON Stylus Pro 7600/9600

3.2.4.16 PF motor PWM output faulty (00010010)

Explanation:
There may be a case where a current exceeding the specified value flows during
PF Motor operation. In such a case, this message is displayed and the printer stops
operating.
This error can be displayed in the following case: an abnormal load which does not
reach the level causing an out-of-step phenomenon 00010001 in the paper feed
drive system has occurred and the running speed of the motor has been detected to
be too low, so that the current is increased to raise the running speed of the motor.
Thus, this message appears to prevent the PF Motor from being overheated.
Cause of trouble:
• A small PWM output is kept on for a certain period of time (load is kept
applied).
• Paper feed related mechanism out of step.
Remedy/Points to be checked:
1. Check the load on the PF Motor.
Measure the resistance value of the PF Motor (5.8Ω)
•
If the PF Motor is found in short mode, replace the C472MAIN Board at the
same time.
Running load of PF Motor (check by manual operation)
•
Rotation load of PF Roller
•
2. Replace the PF Motor (p.185).
3. Replace the MAIN Board (C472 MAIN) (p.207).
Troubleshooting

3.2.4.17 Head driver (TG) temperature error (0001001B)

Explanation:
During printing operation, there may be a case where the temperature inside the
print head has risen above the specified value and the thermistor in the print head
detects it as abnormal temperature. In such a case, this message is displayed and
the printer stops operating.
Cause of trouble:
• Head broken down.
• Faulty contact of tape electric wire, broken wire or wire out of position.
Remedy:
1. Turn off the power to the printer once and turn it on again and check for
recovery.
2. If the same error occurs immediately or in a short time, replace the print head
with a new one.
Error Display
Revision A
141