Epson STYLUS PRO 4910 - Page 67

Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Remedies for Service Call Error 68
Confidential
159F
ATC Motor
lock error
1. There is an error on the Roll Unit.
2. Connection failure of the Roll Lock Sensor.
3. Connection between the SUB-D Board and the Main Board
has an abnormality.
4. Detects that it is being driven at an irregularly slower speed
than the specified value.
 Irregular load
 ATC Motor Assy encoder failure
 ATC Motor failure
1. Check if the Roll Unit and the printer are correctly
connected with the cable.
2. Check the connection of the Roll Lock Sensor (CN607) for
disconnection and damage.
3. Check the connection between the SUB-D Board and Main
Board (CN600) for disconnection and damage.
4. Carry out “Sensor Check” to check if the Roll Lock Sensor
functions normally. (See P.394)
5. Carry out “Encoder Check” to check if the ATC Motor Assy
encoder functions normally. (See P.399)
1. Replace the Roll Lock Sensor.
(See P.217)
2. Replace the ATC Motor Assy.
(See P.219)
1801
AID
communication error
An error occurs during AID communication check.
 Connection failure of the AID Board.
 AID Board failure
1. Turn the power off and then on again to check if the printer
recovers from the error.
2. Check the connection between the AID Board and Main
Board for disconnection and damage (Main Board side:
CN8, AID Board side: CN1).
3. Carry out “AID Function Check” to check if the AID Board
functions normally. (See P.387)
Replace the AID Board. (See
P.165)
1A23
Incorrect RTC data
error
The value information on various absolute time stored on
NVRAM is abnormal.
Check and adjust the RTC status from “RTC&USB ID Check
and Adjustment” (See P.385).
1. Replace the RTC backup
battery.
2. Replace the Main Board. (See
P.152)
1A26
RTC Access
T/O error
The RTC circuit on the Main Board malfunctions.
---
1. Turn the power off and remove
the RTC backup battery.
2. After several seconds, re-attach
the battery and turn the power
back on.
3. If the printer recovers from the
error, set date and time using
“RTC&USB ID check and
adjustment”. (See P.385)
1A37
Thermistor error
1. The Head FFC is not connected correctly.
2. The thermistor detects a temperature out of the
specification.
3. Head thermistor failure
Check the connecting part of Head FFC if there is any loose or
slant connection, or ripped terminals or the breaking of the
FFC (CN101, 102).
1. Replace the Head FFC. (See
P.249)
2. Replace the Printhead. (See
P.232)
1A38
Transistor
environmental
temperature error
1. Transistor failure
2. The thermistor detects a temperature out of the
specification.
---
Replace the Printhead. (See
P.232)
Code Error Name Cause Check Item Remedy