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Lines are too thick, too thin or missing
1. Check that the paper type you have loaded corresponds to the paper type selected in the front
panel and in your software. To check on the front panel, use the View loaded paper key.
2. Check that you are using appropriate print-quality settings for your purposes (see
Printing
on page 43). Select the custom print-quality options in the driver dialog (Mac OS Print dialog),
and try turning on the Maximum detail option. You may wish to reprint your job at this point in
case the problem has been solved.
3. If lines are too thin or missing, print the Image Diagnostics Print. See
The Image Diagnostics
Print on page 155.
4. Try aligning the printheads. See
Align the printheads on page 164. After alignment, you may
wish to reprint your job in case the problem has been solved.
5. Go to the front panel and press the View loaded paper key to see the paper advance calibration
status. If the status is RECOMMENDED, you should perform paper advance calibration: see
Recalibrate the paper advance on page 139.
If the problem persists despite all the above actions, contact your customer service representative for
further support.
Lines appear stepped or jagged
If lines in your image appear stepped or jagged when printed:
1. The problem may be inherent in the image. Try to improve the image with the application you
are using to edit it.
2. Check that you are using appropriate print-quality settings. See
Printing on page 43.
3. Select the custom print-quality options in the driver dialog (Mac OS Print dialog), and turn on the
Maximum detail option.
4. If you are using the PCL3 driver for Windows, you can change your image rendering resolution
to 300 ppi or 600 ppi depending on your printing needs. You can find the Max. application
resolution option in the driver dialog's Advanced tab, under Document Options > Printer
Features.
152 Chapter 13 Troubleshooting print-quality issues ENWW
Print-quality issues