Other Troubles - Epson SC-T7000 series Service Manual

SC-T7000 series/SC-T5000 series/SC-T3000 series

2.6 Other Troubles

Symptom
The printer is not powered.
Cannot access to the network.
The printer makes a strange noise when the
CR is moving.
TROUBLE SHOOTING
Table 2-5. Other Troubles
Cause
The power cable is unplugged
The power voltage is unstable.
Connection failure of the PSH BOARD
Connection failure of the PANEL
BOARD
If any of the remedies above does not help, replace the following parts one by one.
AC inlet
PSH BOARD (See P.118)
A wrong type of network cable is used. Is a crossing cable used as the network cable?
Network cable failure
LAN connector failure
The MAC address is invalid.
Connection failure of the MAIN-C
BOARD
If any of the remedies above does not help, replace the MAIN-C BOARD.
The tension of the CR TIMING BELT
is not proper.
Lubrication of the CR UNIT and CR
shaft is insufficient.
CR SCALE or CR ENCODER failure
Unexpected tension was applied to the
tubes.
If any of the remedies above does not help, replace the CR MOTOR.
Check Item
Is the power plug connected properly?
Is the electrical outlet overloaded sharing with any other
electric equipment?
Is there any problems in the connection between the PSH
BOARD and the MAIN BOARD?
Is there any problems in the connection between the
PANEL BOARD and the MAIN BOARD?
Is there any abnormalities observed on the cable?
Are the connectors firmly inserted?
Is the cable breaking?
Is the cable being bent or is there anything placed on the
cable?
Is the connector deformed or damaged?
---
Is there any problems in the connection between the
MAIN-C BOARD and the MAIN BOARD?
(See P.114)
---
Does the CR UNIT move smoothly? Check it by pulling
the CR TIMING BELT.
1. Is the CR SCALE damaged or contaminated?
2. Is the CR SCALE attached properly?
3. Is the CR ENCODER installed correctly?
Is the resin film on the CR FFC attached properly?
(See P.141)
Other Troubles
Revision B
Remedy
Connect it properly.
Use one electrical outlet for the printer only if
possible.
Correct the problem.
Correct the problem.
Replace the cable with a straight cable.
Correct the problem.
Replace the MAIN-C BOARD.
Rewrite the address with a correct one.
Correct the problem.
Correct the tension of the CR TIMING BELT.
(Page 234)
If the unit does not move smoothly, lubricate it.
1. Clean the CR SCALE.
2. Reinstall the CR SCALE and CR ENCODER.
3. Replace the CR SCALE (See P.135)
ENCODER (See P.138).
Attach the resin film properly.
Confidential
(Page 272)
and CR
63