Epson Perfection 610 - Manual (Page 24)

EPSON Perfection 610 Revision B
Troubleshooting Troubleshooting 24
Table 3-5. The carriage unit operates but the error is indicated.
Cause Step Checkpoints Finding Remedy
The CR home
position sensor
is defective. 1 Check the signal levels
between the collector (+)
and emitter (-) of PC1. The
signal level should change
depending on the condition
below:
• HIGH (4.5V) = Light is
blocked in PC1.
• LOW (0.3V) = Light
passes in PC1.
--- Replace the CR
home position
sensor (PC1) on
the main board.
Table 3-6. The lamp does not light up.
Cause Step Checkpoints Finding Remedy
CN5 on the
main board is
disconnected. 1 Check that CN5 is
disconnected. Yes Connect CN5 on
the main board
properly.
CN1 or CN2 on
the CCD sensor
board is
disconnected. 2 Check that CN1 or CN2 on
the CCD sensor board is
disconnected. Yes Connect CN1 or
CN2 on the CCD
sensor board
properly.
The connector
for the lamp is
not properly
connected to
the inverter
board. 3 Check that the connector is
properly connected to the
inverter board. No Connect the
connector
properly.
The lamp is
defective. 4 After replacing the lamp,
check that the lamp lights
up. Yes Replace the
lamp.
The inverter
board is
defective. 5 After replacing the inverter
board, check that the lamp
lights up. Yes Replace the
inverter board.
The main board
is defective. 6 --- --- Replace the main
board.
Table 3-7. Image is not read clearly.
Cause Step Checkpoints Finding Remedy
Any mirror in the
carriage unit or
the surface of
the lamp is dirty. 1 After cleaning the mirror(s),
check that image is read
clearly. No Clean the
surface of the
lamp.
The CCD
sensor board is
defective. 2 --- --- Replace the CCD
sensor board.
The main board
is defective. 3 --- --- Replace the main
board.
Table 3-8. USB Interface Error
Cause Step Checkpoints Finding Remedy
The host or O/S
(Windows’98/
NT) does not
support USB. 1 On the Windows, access
My Computer > Property >
Device Manager, and
check that Universal Serial
Bus Controller is effective. No Replace the host.
The TWAIN
driver attached
for the scanner
is not properly
installed. 2 Check that the driver for
the scanner is installed
properly. No Instal the correct
driver properly.
The USB cable
is defective. 3 After replacing the USB
cable, check that the error
is not indicated. No Replace the USB
cable.
The main board
is defective. 4 --- --- Replace the main
board.