Epson SC-T7000 series Service Manual page 46

SC-T7000 series/SC-T5000 series/SC-T3000 series
Code Category Error Name
PF Velocity deviation error
122E
122F PF Lock error
Head driver
131B --- (transmission gate)
overheat error
1412 PUMP Pump life error
Undetermined position
1416 PUMP
error
1418 PUMP Overcurrent error
1419 PUMP Oscillation error
TROUBLE SHOOTING
Table 2-2. Service Call Error
Cause
The PF MOTOR was driven at a speed abnormally
faster than a predetermined one during acceleration
or deceleration.
Irregular load
PF ENCODER failure
PF MOTOR failure
SUB BOARD is damaged.
PF MOTOR driver failure
The PF MOTOR was driven at a speed abnormally
slower than a predetermined one during operation.
PF ENCODER cable disconnection
PF MOTOR cable disconnection
Irregular load
PF ENCODER failure
PF MOTOR failure
The temperature of the Head driver rises, and has
reached a predetermined limit.
The number of PUMP CAP UNIT operation has
reached the specified limit. (The rotation of the
pump motor has reached the specified limit.)
PUMP CAP UNIT failure
Connection failure of the pump motor or the
pump motor encoder.
The number of occurrences of overcurrent to the
pump motor has reached a predetermined limit.
Irregular load
pump motor encoder failure
pump motor failure
The control terminal (Vre terminal) of the pump
motor driver has shorted out.
Remedies for Service Call Error
Check Item
Does the PF ENCODER work properly? Check it
using the Service Program.
1. Is there any problems such as damaged cable in the
connections below?
PF ENCODER to SUB-B BOARD (CN2)
PF MOTOR to SUB-B BOARD (CN1)
2. Does the PF ENCODER work properly? Check it
using the Service Program.
1. Turn the power off and then back on. Does the
printer recover from the error?
2. Is the FFC connected to the connector properly
without being tilted?
---
Is the sensor cable connected properly?
1. Is there any problems such as damaged cable in the
connections below?
Pump motor (pump motor encoder) to MAIN
BOARD (CN14)
2. Does the pump motor encoder work properly?
Check it using the Service Program.
1. Is the pump motor driver on the MAIN BOARD
damaged?
2. Is there any foreign materials around the pump
motor driver?
Revision B
Remedy
1. Replace the PF ENCODER.
(See P.166)
2. Replace the PF MOTOR. (See
P.163)
3. Replace the MAIN BOARD.
(See P.111)
1. Replace the PF ENCODER.
(See P.166)
2. Replace the PF MOTOR. (See
P.163)
1. Replace the HEAD FFC. (See
P.127)
2. Replace the PRINT HEAD.
(See P.126)
Replace the PUMP CAP UNIT
(See P.147), and reset its counter
(See P.231).
Replace the PUMP CAP UNIT
(See P.147).
Replace the pump motor encoder
and pump motor (PUMP CAP
UNIT). (See P.147)
1. Remove the foreign material.
2. If the error still occurs, replace
the MAIN BOARD. (See
P.111)
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