7-22 Maintenance and Troubleshooting
R4C448
Rev. C
A5 size CHAP7.FM
2/11/00 Pass 3
LProof Sign-off:
tanto name SEI Y.Takasaki M.Fujimori
leader name M.Fujimori
editor name SEI M.Kauppi
Software operation problems
Film Adapter is not switched
off.
If the Film Adapter is installed, make
sure it is switched off.

You cannot start EPSON TWAIN.

Cause What to do
Scanner is switched off. Turn on the scanner and then turn on
the computer.
Interface cable is unsuitable. Make sure the interface cable meets
the requirements of your interface
board. See the manual that comes with
the interface board.
Connection is not made
properly.
Turn off the scanner and computer
and check the connection between the
scanner and the computer.
Interface board is not
installed properly.
Make sure the interface board is
installed correctly.
Incorrect selection of
TWAIN Data Source in
application.
Make sure that EPSON TWAIN 4 or
4U is selected properly in your
application software. See “Starting
EPSON TWAIN through your
application software” on page 4-8.