EPSON Perfection 4490 Photo Revision B
Disassembly / Assembly Disassembly Procedure 52
8. Remove the Protective Cover from the TPU Inverter Board.
Figure 4-40. Removing the TPU Inverter Board (2)
Protective Cover
When installing the TPU Inverter Board to the TPU Carriage
Frame, match the positioning holes and the guide pins as shown
in the figure below.
When connecting CN2 and CN3 Connector Cables, route them
under the tab (DRV Inverter FFC Tab) as shown in the figure
below.
Figure 4-41. Routing the DRV Inverter Cables
When connecting the DRV Inverter FFC to the TPU Inverter
Board, put the FFC through the tab (DRV Inverter FFC Tab)
as shown in Figure 4-38
.
Secure the DRV Inverter FFC with a piece of acetate tape at the
position shown in Figure 4-38
.
CN3
CN2
Positioning Holes and Guide Pins
Tab (DRV Inverter FFC Tab)