Troubleshooting Paper Jams Occur Frequently 1 Make sure that the paper type setting matches the type of paper loaded into the Printer. 2 Open the Rear Cover and check for any visible obstacles in the paper path. If there is a wrinkled mass of paper inside the paper path, lift the Pinchwheels (using the Media Lever) and clear the obstruction. 3 Make sure that the Vacuum Fans are working correctly. Print Speed is Very Slow 1 Make sure that the Printer is being used at temperatures of 20 o C or higher. No Ink Message when there is Enough Ink 1 Make sure that the Ink Cartridge is installed correctly. 2 Check that the connector in the Ink Cartridge is NOT damaged.
3 Make sure that the Ink Cartridge Sensors are working correctly. Perform the Ink Sensor Test ⇒ Page 4-54 . Abnormal Sound Coming from the Printer 1 One of the Motors in the Printer might be defective. Check that the Motors are working correctly ⇒ Page 4-70 . 2 Check that there are no foreign or loose objects inside the Printer. Front Panel is Not Working 1 Make sure that the Front Panel Cable is connected correctly to the Front Panel and to the Main PCA. 2 Make sure that the Front Panel Cable is NOT damaged. 3 Replace the Front Panel ⇒ Page 8-25 . Heater Panel is Not Working 1 Make sure that ALL Heater Panel Cables are connected correctly to the Heater Panel.
2 Make sure that the Heater Panel Cables are NOT damaged. 3 Replace the Heater Panel ⇒ Page 8-27 . 1-4 HP Designjet 9000s Series Printer Service Manual