Epson STYLUS COLOR 480 Service Manual page 77

EPSON Stylus COLOR 480
NOTE: 110V type of the PS board dose not have earth wire.
Refer to the Figure 4-14
C364 MAIN Board
Figure 4-14. Remove the screw securing each circuit board.
When replacing the Main board with a new one, perform the
following service items.
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Before removing the Main board, connect the parallel I/F
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 Page111.
1) I/C Ink consumption counter.
2) Waste ink drain pad counter.
3) Printhead ID input.
4) Gap adjustment (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.
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Replace the both ink cartridges with a brand new one.
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Replace the Waste ink drain pad with a new one.
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Input the Printhead ID.
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Adjust the Bi-d alignment.
Disassembly and Assembly
C364 PSE/PSE board
Disassembly
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Since the cable between C364 MAIN board and C364 PSB/E
board are directly soldered, take the following steps when
replacing only one circuit board in the service activity.
1. Take off the cable on the Main board by removing the solder by
heating it with the soldering iron.
2. Replace the defective circuit board with new one.
3. Insert the tip of the cable into the soldering hole of the ASP Main
board and solder it securely.
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Tightening Torque for screw
• C.B.S. 3x6 F/Zn screw for PS board
• C.B.S TITE R 3x6,F/Uc screw for PS board
• C.B.S. 3x6 F/Zn screw for Main board
• C.P. 3x6,F.Zn screw for Parallel I/F connector
• C.B.S. 3x6 F/Zn screw for Circuit unit
• C.B.(O) 4x5, F/ZG screw for Earth cable
Revision B
: 6+/- 1kgf.cm
: 6+/- 1kgf.cm
: 6+/- 1kgf.cm
: 6+/- 1kgf.cm
: 6+/- 1kgf.cm
: 11+/-1kgf.cm
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