HP 4000

1-10
Troubleshooting
HP Designjet 4000/4020 Printer Series Service Manual
are correctly connected.
 Check that the cable between the Power Supply Unit and the Main PCA is not damaged and is
correctly connected.
 Replace the Interconnect PCA ⇒ Page 8-93
 Replace the Gamut PCA ⇒ Page 8-98