HP PRO L7500 manual Meaningless characters print, Ink is smearing, Check the document file

Check the type of media loaded in the device

•Make sure the tray supports the type of media you have loaded. For more information, see Understand specifications for supported media.

•Make sure you have selected the tray in the print driver that contains the media that you want to use.

Check the device location and length of USB cable

High electromagnetic fields (such as those generated by USB cables) can sometimes cause slight distortions to printouts. Move the device away from the source of the electromagnetic fields. Also, it is recommended that you use a USB cable that is less than 3 meters (9.8 feet) long to minimize the effects of these electromagnetic fields.

Meaningless characters print

If an interruption occurs to a job that is printing, the device might not recognize the rest of the job.

Cancel the print job and wait for the device to return to the ready state. If the device does not return to the ready state, cancel all jobs and wait again. When the device is ready, resend the job. If prompted by the computer to retry the job, click Cancel.

Check the cable connections

If the device and computer are connected with a USB cable, the problem may be due to a poor cable connection.

Make sure the cable connections at both ends are secure. If the problem persists, turn off the device, disconnect the cable from the device, turn on the device without connecting the cable, and delete any remaining jobs from the print spooler. When the Power light is on and not flashing, reconnect the cable.

Check the document file

The document file may be damaged. If you can print other documents from the same application, try printing a backup copy of your document, if available.

Ink is smearing

Check the print settings

•When you print documents that use much ink, allow more time to dry before handling the printouts. This is especially true for transparencies. In the printer driver, select the Best print quality, and also increase the ink drying time and reduce the ink saturation using the ink volume under the advanced features (Windows) or ink features (Mac OS). However, note that decreasing ink saturation might give printouts a "washed-out" quality.

•Color documents that have rich, blended colors can wrinkle or smear when printed using the Best print quality. Try using another print mode, such as Normal, to reduce ink, or use HP Premium Paper designed for printing vivid color documents. For more information, see Change print settings.

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