Epson Stylus C40UX, Service Manual

Page: 72 / 125

Stylus C40UX/C40SX/C20UX/C20SX Revision B
Disassembly and Assembly Disassembly 72
6. Disconnect the four connectors (CN9, CN4, CN7, CN12).
Figure 4-28. Disconnecting the connectors
7. Take out the 1 screw.
Figure 4-29. Removing the MAIN board
8. Lift the MAIN board up and remove it.
CN9
CN4
CN7
CN12
CBS 3
×
8
Tightening Torque for screw
„
USB Type
- C.B.S 3x6 screw
: 9+/-1 kgf.cm
- C.B.S 3x8 screw : 9+/-1 kgf.cm
„
Parallel Type
- C.B.S 3x6 screw
: 9+/-1 kgf.cm
- C.P.F.S-Tight 3x12 screw : 9+/-1 kgf.cm
- C.B.S 3x8 screw : 9+/-1 kgf.cm
A D J U S T M E N T
R E Q U I R E D
When replacing the Main board with a new one, perform the
following service items.
„
Before removing the Main Board, connect the parallel cable or
USB cable and try to read out the following data by using the
Adjustment program. If this operation succeeds, replace the
Main board and write the read out data to the new Main
board through the Adjustment program. (Refer to Section
5.1.14)
1) I/C Ink consumption counter.
2) Waste ink drain pad counter.
3) EEPROM Initial setting
4) Head ID input
5) Top margin adjustment
6) Bi-D adjustment
In case the above mentioned data are not able to be read out from
the defective Main board, perform the following service items.
„
Replace the both ink cartridges with a brand new one.
„
Replace the Waste ink pad with a new one.
„
Reset the Ink pad counter
„
Input the EEPROM initial setting value
„
Input the Head ID
„
Adjust the Top margin
„
Adjust the Bi-D alignment.