Removal and Installation Ink Supply Station (ISS) Removal WARNING Switch off the Printer and remove the Power Cord. 1. Remove the Left Hand Cover - Refer to Page 8-6 . 2. Remove the Left Rear Cover - Refer to Page 8-15 . 3. Remove the Back Extension Cover (Only for the 60" Model) - Refer to Page 8-17 . 4. Disconnect APS Cables (P5, P4 and P3) from the ISS PCA. P5 P4 P3 5. To remove the ISS, stand at the end of the Printer and press in the retaining clip on the ISS. Press here 8-64 HP DesignJet 5000 and 5500 Series Printers Service Manual