Epson 680Pro Service Manual - Page 105
Bi-D Adjustment, Entering the 11 digits Head ID
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EPSON Stylus COLOR 680/777/777i 5. Choose the "Input head ID" item in the Head ID menu and click the OK button. Following Head ID input menu is displayed. Revision B 7. When the Head ID is input and write to the EEPROM, the following message is displayed on the bottom column in the menu. Figure 5-6. Entering the 11 digits Head ID 6. Input a 11-digit code of the Head ID in the above menu. In case you input the incorrect character or symbol in this menu, this program detects it automatically and displays error message in the bottom column. Figure 5 shows you the one of the error message. Figure 5-8. Completing the Head ID input 5.1.6 Bi-D Adjustment You perform this adjustment to correct differences in printing positions, which is caused by incorrect of printing timing in right and left directions during the Bidirectional printing. Therefore, you are required to perform this adjustment after performing the following operations. n Replacing the Print mechanism n Replacing the main board n Replacing the CR motor n Replacing the Carriage Assembly n Replacing the Prinzzthead Figure 5-7. Error message in the Input head ID menu Adjustment Overview 105