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11. Troubleshooting
11.1 Printing is not performed
Symptom
Power is not being supplied.
A "COM Timeout" message
appears on the computer screen.
The printhead carriage stops
suddenly.
11.2 Unsatisfactory printing
Symptom
The printed results are scratchy.
The printing gradually becomes
faint.
JS310-UM-251-9370
Cause
The power cable is not connected.
Power is not being supplied to the power
outlet.
The printer is not online.
The printer is not connected to the
computer's USB port.
The wet keeping frame is still attached
to the printhead carriage.
Cause
Insufficient ink.
Clogged nozzles.
Dirty nozzle surface.
Incorrect EF value settings.
There is a bend somewhere in one of the
ink tubes.
Insufficient ink.
Cleaning solution has become mixed in
with the ink.
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11. Troubleshooting
Solution
Check that the power cable is firmly
inserted.
Check that a power voltage conforming
to the power supply specifications is
being supplied.
Check whether the printer is online. If it
is not online, press the ONLINE key to
put the printer online.
Check that the printer's USB port is
connected to the computer's USB port.
Check that the USB cable is firmly
inserted.
Remove the wet keeping frame and then
turn the power off and back on again.
Solution
If the "No ink" alarm sounds, refill the
ink tank(s) and then press the ESC key.
Print the nozzle check pattern to check
the nozzles (see Section 8.5 Printing the
Nozzle Check Pattern).
If there are several clogged nozzles,
perform a printhead cleaning operation .
Use the brush(es) provided to clean the
surface of the nozzles.
Input the correct values (see Section 8.1
Setting the Printhead Drive Voltage).
Check whether there is a bend in the ink
tubes connected to the ink tank, or in the
inlet tubes.
If the "No ink" alarm sounds, refill the
ink tank(s) and then press the ESC key.
Check the 3-way valve for each ink tank.
If any of the levers is set incorrectly,
move it to the ink supply position.
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Table of Contents
Troubleshooting
