EPSON Stylus C110/C120/D120 Revision B
DISASSEMBLY/ASSEMBLY      Removing Board 78
 Be careful not to damage the PF Scale and the Spur Gear of 
the EJ roller when installing the Main Board Unit and the 
Panel Unit.
 Route the Panel Unit FFC on the Main Board Unit and the 
Panel Unit referring to the figure below. Make sure to fold the 
FFC as shown.
Figure 4-14.  Routing Panel Unit FFC
 When installing the Main Board Unit, be sure to insert the 
tabs (x2) of the Main Board Unit into the slots of the Base 
Frame (x2). 
Figure 4-15.  Installing Main Board Unit
9 to 10 mm
(from the slot on the 
frame to the tape edge)
Align the edge of the FFC 
with the edge of the Left 
Frame.
Panel Unit FFC
Double-sided tape position
 When routing the Head FFC on the Left Frame, secure the 
Head FFC with an acetate tape on the specified position as 
shown in the figure below.
Figure 4-16.  Acetate Tape Position
 Be cautious of the following points when connecting the cables 
to the Main Board.
1. Do not let the cables and FFCs over the USB interface.
2. Route the CR Motor cable and the PF Motor cable through the 
gap between their connectors.
.
Figure 4-17.  Routing cables on the Main Board
A D J U S T M E N T
R E Q U I R E D
After replacing the Main Board Unit, be sure to perform specified 
adjustment. See 
Chapter 5 “ ADJUSTMENT” (p.107)
50 mm
Align the edge of the tape with 
the corner of Left Frame.
Align here with 
the cutout of the 
Left Frame.
Inside of the frame
Wrap the tape around the 
frame and the Head FFC.
Outside of the frame