Epson colour 640 User Manual download pdf (Page 40)

Running a Printer Check

You can run a printer check to determine whether the problem comes from the

printer itself or some other source.

■

If the results are satisfactory, the problem lies in software settings, the

interface cable, or your computer.

■

If the printer check does not print correctly, there is a problem with your

printer. See the suggestions in “Problems and Solutions” on page 34 for more

information.

Follow these steps to check the printer:

1. Make sure both the printer and computer are turned off.

2. Disconnect the interface cable from the printer.

3. Make sure paper is loaded in the printer.

4. Hold down the

load/eject button and press the power button. Hold

down both buttons until the

power light starts to flash. Then release

them.

The printer prints one page containing the printer’s ROM version, ink

counter code, character table number, and a nozzle check pattern. Only the

nozzle check pattern is shown below:

5. After it prints the page, turn off the printer. Remember to reconnect the

interface cable, and turn on the printer and your computer.

6. Compare the quality of the printed nozzle check pattern with the sample

above. In particular, look for missing segments in the lines, which may

indicate a misaligned print head or clogged ink nozzle.

missing dots

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Epson colour 640 User Manual Page 40