Epson Stylus Pro 4900/Epson Stylus Pro 4910  Revision A
TROUBLE SHOOTING  Remedies for Service Call Error  73
Confidential
Note  *:  When replacing these parts, collect and send them to SEIKO EPSON CORPORATION to request error analysis (See P.48).
3000
AC shut-off
The AC power has been shut off due to a power failure, 
unplugged, Power Supply Board failure, or Main Board failure 
or the like.
Check if the Power cable is correctly connected.
1.  Replace the Power Supply 
Board. (See P.159)
2.  Replace the Main Board. (See 
P.152)
Dxxy
Service call for FW 
debugging
This is an error for debugging in the design stage. However, it 
may occur due to unexpected reasons such as external noises.
Turn the power off once and turn it back on to check if the 
printer recovers from the error. (Ignore it if the error does not 
occur again).
1.  Re-install the firmware. (See 
P.307)
2.  Replace the Main Board. (See 
P.152)
Fxxx
CPU related service 
call
 The firmware has a defect.
 The Main Board is broken.
Check if the installed firmware supports this printer.
1. Re-install the firmware. (See 
P.307)
2. Replace the Main Board. (See 
P.152)
Code Error Name Cause Check Item Remedy