Ink Supply Station PCAs (Upper and Lower) 393
Removal & Installation
9. Disconnect the Electrical Cable from the Upper ISS
PCA.
10. Remove two T-10 screws from the Upper ISS PCA.
11. Disconnect four connectors from the Upper ISS PCA.
12. Tip: To make the removal easier you can remove the
two Ink Valves located at the rear of the Upper
Cartridge Tube Connector from holders, by turning
them in a clockwise direction.