Epson Stylus Pro 9900 - Electric Circuit Components

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908 Revision I
OPERATING PRINCIPLES Main Body 96
Confidential
2.1.2 Electric Circuit Components
Figure 2-2. Electric Circuit Components
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Diagram Name Description
1 Ink Holder Board Assy L
Relays the connection between the Main Board Assy
and electric parts/components of every kind. See
"Block Wiring Diagram" (p. 466) for specific
connections to the concerning parts/components.
2 Sub Board Assy; C
Relays the connection between the Main Board Assy
and electric parts/components of every kind. See
"Block Wiring Diagram" (p. 466) for specific
connections to the concerning parts/components.
3 Sub Board Assy
Relays the connection between the Main Board Assy
and electric parts/components of every kind. See
"Block Wiring Diagram" (p. 466) for specific
connections to the concerning parts/components.
4 Power Supply Board Assy
Generates the DC voltage for this printer from the AC
power supply.
5 Main Board Assy
 Communicates with the computer.
 Processes received data.
 Controls the printer mechanism.
 Stores the correction values and various counters.
 Generates the voltages for the logic system from the
voltage of 42V supplied from the Power Supply
Board Assy.
6 Sub Board Assy; B
Relays the connection between the Main Board Assy
and electric parts/components of every kind. See
"Block Wiring Diagram" (p. 466) for specific
connections to the concerning parts/components.
7AID Board
The board to perform the AID function which detects
dot missing automatically.
8 Ink Holder Board Assy R
Relays the connection between the Main Board Assy
and electric parts/components of every kind. See
"Block Wiring Diagram" (p. 466) for specific
connections to the concerning parts/components.