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EPSON Stylus Pro 7600/9600 Revision A
Troubleshooting Error Display 140
3.2.4.14 Head slide (PG) home position sensor error (0001000C)
Explanation:
During initial operation at power on or during head platen gap fluctuation (change)
operation after paper setting, there may be a case where the head slide home
position can not be detected. In such a case, this message is displayed and the
printer stops operating.
Cause of trouble:
• Home position detection error due to head slide out-of-step
• Defective head slide home position sensor
• Defective head slide motor, disconnected connector or broken cable
• Gears not engaged properly
Points to be checked:
Head Slide Detection Sensor
• Check that the sensor functions properly.
• Check that the sensor and the head platen gap drive gear are free from
obstruction by adhesion of foreign matters or soiling.
Head Slide Motor (Pump Motor)
• Measure the resistance value. (9.2Ω)
If the motor is found in short mode, replace the C472MAIN Board at the same
time.
• Check that the motor operates properly.
(Refer to “5.2.2.4 Encoder ”(p225) in the self-diagnostics menu.)
• Check that the gear train including the head platen gap drive gear is free from
any obstruction.
Remedy:
• Replace the HEAD_SLIDE Sensor ASSY (p.182).
• Replace the Pump Motor ASSY (p.200).
NOTE:
Refer to
“Head Slide (PG Change) Initialization Sequence” (p.107)
.
3.2.4.15 CR motor PWM output faulty (0001000F)
Explanation:
There may be a case where a current exceeding the specified value flows during
CR 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 00010005 in the carriage 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 CR Motor from being overheated.
Cause of trouble:
• A small PWM output is kept on for a certain period of time (load is kept
applied).
• Carriage related mechanism out of step or carriage bumped.
Remedy/Points to be checked:
1. Check the load on the CR Motor.
• Running load of CR Motor (check by manual operation)
• Measure the resistance value of the CR Motor.(5.8Ω)
• Damage to or wear in the CR Driven Pulley
• Damaged or worn bearing of the CR Unit
• Flaws in the CR Rail caused by roller running
• Tension of the steel belt
2. Replace the CR Motor ASSY (p.180).
If the CR Motor is found in short mode, replace the C472MAIN Board at the
same time.
3. Replace the MAIN Board (C472 MAIN) (p.207).