Epson Stylus Pro Service Manual page 61

Disassembly and Assembly
r When you replace the main board, initialize the EEPROM contents as follows;
1) Reassemble the printer.
2) Turn the printer ON while hold down [Alt], [Font], [Load/Eject] and [Pause] buttons on the
control panel.
r It is possible to misconnect the cables. When reconnecting the cables from the connectors CN6,
CN7 and connectors CN11, CN12 of the C164 MAIN board, see the following instructions.
1. CN11 : Printhead FFC cable (white color mark)
CN12 : Printhead FFC cable (blue color mark)
2. CN6 : Carriage motor cable (red color mark : Also the red color indicates the 1-pin of the
CN6.)
CN7 : Paper feed motor cable (black color mark : Also the black color indicates the
1-pin of the CN7.)
r When you replace the main board, block resistances RM4, RM5, RM11 and RM12 must be
re-installed at same position on new board.
r When replacing the main controller board, adjust both the head gap and the Bi-D adjustment
alignment, and input the destination parameter into the EEPROM on the C164 MAIN Board.
(See Chapter 4.)
r When you replace the main board, the parameters in the internal timer are all reset. Therefore,
it is possible that printing becomes abnormally. At this time, perform the cleaning operation by
the control panel on command (Refer to Chapter 4) until the printing becomes normally.
As the shield plates of C164 MAIN and C137 PSB/PSE have sharp edge, take care of handling
them.
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Stylus Pro Service Manual
Rev.A