Epson Stylus C40UX Service Manual page 72

Stylus C40UX/C40SX/C20UX/C20SX
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
Disassembly and Assembly
CN9
CN4
CN7
CN12
CBS 3 8
8. Lift the MAIN board up and remove it.
Tightening Torque for screw
USB Type
- C.B.S 3x6 screw
- C.B.S 3x8 screw
Parallel Type
- C.B.S 3x6 screw
- C.P.F.S-Tight 3x12 screw
- C.B.S 3x8 screw
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.
Disassembly
Revision B
: 9+/-1 kgf.cm
: 9+/-1 kgf.cm
: 9+/-1 kgf.cm
: 9+/-1 kgf.cm
: 9+/-1 kgf.cm
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