HP Designjet 9000s Service Manual - Page 180

Print Quality Part of Image is Missing at the Start of the Print Corrective Action 1 There might be a problem between the Printer and Computer. Check the cable between the computer and the Printer to make sure it is not damaged and is connected correctly. 2 Make sure that the environmental conditions (temperature, humidity) are within the temperature/humidity range as specified for the Printer (refer to the User's Guide for further information). Print Quality is not Improved After Printhead Recovery Corrective Action 1 Perform the Daily Maintenance procedure (⇒ Page 9-3). 2 Repeat the Printhead Recovery procedure (⇒ Page 9-10) and reprint the image. 3 Print the Nozzle Check pattern and check if there any nozzles missing. If there are several nozzles missing and the Printhead Recovery procedure has not improved the print quality, then it might be necessary to replace the failing Printhead. 6-8 HP Designjet 9000s Series Printer Service Manual