Epson STYLUS COLOR 580, Service Manual

Page: 77 / 149

EPSON Stylus COLOR 580 Revision A
Disassembly and Assembly Disassembly 77
Hexagon nut, Normal M4(Green circled) :1pcs (for Earth terminal)
(C.B.S Screw 3x6, F/Zn for 220V (Green circled screw): 1pcs (for Earth
terminal))
NOTE: 110V type of the PS board dose not have earth wire.
Refer to the Figure 4-14
Figure 4-14. Remove the screw securing each circuit board.
C H E C K
P O I N T
On IC3 socket of the C379 MAIN-B Board, C379 SUB board may
be equipped. This board is to use the 2sets of the 2M bit P-ROM
instead of the 1chip of the 4M bit P-ROM.
For the ASP P-ROM, only 4M bit OTP ROM is available for ASP
and this C379 SUB board is not required to use 4M bit ROM.
C379 MAIN Board
C364 PSE/PSE board
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.
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Before removing the Main board, connect the USB 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 Page112.
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.
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Since the cable between C379 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 : 6+/- 1kgf.cm
• C.B.S TITE R 3x6,F/Uc screw for PS board : 6+/- 1kgf.cm
• C.B.S. 3x6 F/Zn screw for Main board : 6+/- 1kgf.cm
• C.P. 3x6,F.Zn screw for Parallel I/F connector : 6+/- 1kgf.cm
• C.B.S. 3x6 F/Zn screw for Circuit unit : 6+/- 1kgf.cm
• C.B.(O) 4x5, F/ZG screw for Earth cable : 11+/-1kgf.cm
n
The PF motor cable will be soldered on the C379 Main C. So,
Before you replace the Main board with new one, take off the PF
motor cable on the Main board by removing the solder by
heating it with the soldering iron.