EPSON Stylus PHOTO 810/820/830

Revision B

2.2 Electrical Circuit Operating Principles

The electric circuit of the Stylus Photo 810/820/830 consists of the following boards.

†Main board:

Stylus Photo 810/820 : C417/C418 Main/Main-B *1

Stylus Photo 820/830 : C483/C484 Main-B Board *2

†Power supply board:

Stylus Photo 810/820 : C417 PSB/PSE Board

Stylus Photo 820/830 : C482 PSH (For 42V)

*1 : C418 Main/Main-B board is used for both the Stylus C60 and the Stylus Photo 810/820. Followings show you the specification of the C418 Main/Main-B board.

-For the Stylus C60

1)C418 Main : 2 in 1 ASIC + Soldering SOJ ROM (from the first mass production)

2)C418 Main/Main-B : 3 in 1 ASIC + Soldering SOJ ROM (Running change)

-For the Stylus Photo 810/820

1)C418 Main/Main-B : 3 in 1 ASIC + Soldering SOJ ROM

(from the first mass production)

*2 : C483/C484 Main-B board is used for both the Stylus C61/C62/Photo 820/830. Followings show you the specification of the C483/C484 Main-B board.

1) C483/C484 Main-B : 2 in 1 ASIC + Soldering SOJ ROM

(from the first mass production)

Note: CPU, ASIC and PROM is integrated as one chip (IC1) on the Main board. This section provides operating principles of C417/C418 Main, C417/C418 Main-B, C483 /C484 Main-B board and C417 PSB/PSE, C482 PSH board. refer to Figure 2-15/Figure 2-16 for the major connection of the each boards and their roles.

Printer mechanism

 

 

CR motor

C418 Main board

 

 

 

 

 

 

 

PF motor

Head driver board

HP/PE sensor

+5VDC +42VDC

C417 PSB/PSE board

Figure 2-15. Electric circuit (Stylus Photo 810/820)

 

Printer mechanism

C418 Main board

CR motor

 

 

PF motor

+3.3VDC

Head driver board

 

 

HP/PE sensor

+42VDC

 

C417 PSB/PSE board

 

Figure 2-16. Electric circuit (Stylus Photo 820/830)

Operating Principles

Electrical Circuit Operating Principles

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