HP laserjet 3390, 3392 all-in-one Service Manual
8.
Spread the all-in-one frame at the other side of the all-in-one to release the internal tabs, and then
lower the ECU slightly and pull it straight back to remove it.
lower the ECU slightly and pull it straight back to remove it.
NOTE
Make sure that wire-harnesses do not become caught on the contact springs as
you remove the ECU.
Figure 5-78
Remove the ECU (7 of 8)
Reinstallation tip
When replacing the ECU, you might find it easier to find the correct
placement of the ECU pan in the all-in-one if you tip the all-in-one so that it rests on its front.
9.
Remove four screws (callout 7) and then lift the ECU off of the ECU pan.
7
Figure 5-79
Remove the ECU (8 of 8)
168
Chapter 5 Removal and replacement
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