Epson Stylus Pro 4910 Service Manual page 54

Epson Stylus Pro 4900/Epson Stylus Pro 4910
Code Error Name
Detects, when accelerating/decelerating the motor, that it is
being driven at an irregularly faster speed than the specified
value.
Irregular load
IS Motor
141E
velocity deviation error IS Motor Assy encoder failure
IS Motor failure
SUB Board is damaged.
IS Motor driver failure
1. Connection failure of the IS Motor Assy.
2. Detects that it is being driven at an irregularly slower speed
than the specified value.
IS Motor
141F
lock error
Ink Selector The number of operation counter of the Ink Selector has
1431
life error reached the specified life. (10,000 times)
Cartridge Holder Operations of the diaphragm in the Cartridge Holder exceeded
1432
life error the specified value.
Positions of the ink system components do not match with the
sensor condition.
IS Unit position
1433 Connection failure of the sensor
sensor error
Sensor failure
IS Unit failure
Ink select operation failed.
Ink Selector's load is abnormal.
1494 Ink Selector error
Ink Selector Sensor failure
Ink Selector Motor failure
Ink select operation failed.
Ink Selector Sensor
1496
error detection
Ink Selector Sensor failure
TROUBLE SHOOTING
Cause
Irregular load
IS Motor Assy encoder failure
IS Motor failure
Remedies for Service Call Error
Check Item
1. Carry out "Encoder Check" to check if the IS Motor Assy
encoder functions normally. (See P.399)
2. Carry out "Motor Measurement Adjustment (IS Motor)" to
check if the IS Motor functions normally.
1. Check the following connection for disconnection and
damage.
IS Motor Assy to SUB-B Board (CN228, CN229)
2. Carry out "Encoder Check" to check if the IS Motor Assy
encoder functions normally. (See P.399)
3. Carry out "Motor Measurement Adjustment (IS Motor)" to
check if the IS Motor functions normally.
---
Using NVRAM Viewer, check which Cartridge Holder (the
left one or the right one) has reached the end of the specified
life. (See P.303)
1. Check the connection between the Wiper and the Cap
Sensor (CN231), and conduct "Sensor Check" for function
check (See P.394).
2. Check the connection of IS Unit HP Sensor (CN230), and
conduct "Sensor Check" for function check
Discharge ink, and carry out "Ink Selector Movement Check"
for function check (See P.330).
---
Revision A
Remedy
1. Replace the IS Unit.
P.233)
2. Replace the SUB-B Board.
P.162)
(See P.393)
3. Replace the Main Board.
P.152)
Replace the IS Unit. (See P.233)
(See P.393)
Replace the Ink Selector Assy.
(See P.229)
Replace the Cartridge Holder.
(See P.239) (See P.242)
1. Replace the Wiper and Cap
Sensor.
2. Replace the IS Unit HP Sensor.
3. Replace the IS Unit.
(See P.394).
P.233)
Replace the Ink Selector Assy.
(See P.229)
Replace the Ink Selector Assy.
(See P.229)
Confidential
(See
(See
(See
(See
55