HP DesignJet T1530 User guide - Page 158
Lines appear stepped or jagged, Lines print double or in the wrong colors
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5. If the problem remains, go to the front panel and press , then , then Image quality maintenance > Calibration status to see the printhead alignment status. If the status is PENDING, you should align the printhead. See Align the printhead on page 164. After alignment, you may wish to reprint your job in case the problem has been solved. 6. Go to the front panel and press , then , then Image quality maintenance > Calibration status to see the paper advance calibration status. If the status is DEFAULT, you should perform paper advance calibration: see Recalibrate the paper advance on page 146. 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 60. 3. Select the custom print-quality options in the driver dialog, and turn on the Maximum detail option (if available). Lines print double or in the wrong colors This problem can have various visible symptoms: ● Colored lines are printed double, in different colors. ● The borders of colored blocks are wrongly colored. To correct this kind of problem: 150 Chapter 18 Troubleshooting print-quality issues ENWW