EPSON Stylus C82
Revision A
OPERATING PRINCIPLES
Electrical Circuit Operating Principles
18
2.1.5 Ink System Mechanism
With this printer, when the PF Motor turns, power is always transmitted to the ink
system.
2.1.5.1 Pump Unit & Wiper mechanism
(*1): The PF Motor rotational direction = seen from the left side of the printer.
2.2 Electrical Circuit Operating Principles
The electric circuit of the Stylus C82 consists of the following boards.
Main board
: C486 MAIN Board
Power supply board
: C486 PSB/PSE Board
Panel board
: C486 PNL Board
This section provides Block diagram of both C486 MAIN Board and C486 PSB/PSE
Board.
2.2.1 C486 PSB/PSE Board
Figure 2-2. C486 PSB/PSE Board Block Diagram
Table 2-3. PF motor rotational direction & Ink system mechanism
Directions
Functions
Counterclockwise
(*1)
• Set wiper.
• Draw ink.
• Set CR lock lever.
Clockwise
(*1)
• Reset wiper.
• Release pump.
• Reset CR lock lever.
+5VDC Line
Over Voltage
Limitation
+42VDC Line
Over Voltage
Limitation
+42VDC Line
Drop Limitation
+42VDC Line
Constant Control
Smoothing
Circuit
Power Drop
Delay Circuit
Photo
Coupler
TRANS(T1)
PSC Signal from
Main board
ZD53
+5VDC
+42VDC
F51
Q91, ZD51
ZD52, 87
ZD90
C84, Q84
C51
Q1
C11
D51
Q2, Q31
Abnormal Feed
back circuit
Main Switching
Circuit
Smoothing
Circuit
Over Current
Protection
Filter Circuit
Full Wave
Rectifier circuit
DB1
L1, C1
F1, TH1
AC Input
PC1,
PC2
Over Current
Protection
Содержание Stylus C82
Страница 1: ...EPSONStylusC82 Color Inkjet Printer SEIJ02003 SERVICE MANUAL ...
Страница 5: ...Revision Status Revision Issued Date Description A July 31 2002 First Release ...
Страница 8: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 16: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 21: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 24: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 43: ...C H A P T E R 5 ADJUSTMENT ...
Страница 46: ...C H A P T E R 6 MAINTENANCE ...
Страница 51: ...C H A P T E R 7 APPENDIX ...
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