Usb Id Input - Epson 680Pro - LQ B/W Dot-matrix Printer Service Manual

EPSON Stylus COLOR 680/777/777i
However, this directional difference among Bi-D patterns should not be considered,
and you can always confirm and adjust the pattern correctly by referring to gap amount
only.
3. Click the "Previous" and go back to the Bi-Directional adjustment items" menu.
And choose the "Input Bi-D adjustment value" menu and click the "OK" button.
Figure 5-11. Choose the Adjust menu
4. Check the printed pattern. Cheese the misaligned dot size and Input the suitable
value in the menu and click the "OK" button. The input value is written in the
specific address of the EEPROM. Refer to Figure 5-12.
The value 0 (blue) appears in the center of the screen and changes the value by
clicking the up/down icon. Apply the value for the most properly aligned pattern in
the Bi-D adjustment pattern print.
You can change the value by input the suitable value directly from the key board.
In case the + value is input, the 2nd vertical printed pattern is shift to the left side.
And in case the - value is input, the 2nd vertical printed pattern is shift to the right
side.
Adjustment
Figure 5-12. Input the suitable value
5. To confirm if the adjustment value is suitable, click the "Previous" button and go
back to the "Bi-Directional adjustment items" menu.
6. Choose the "Print the Bi-D adjustment patter" and click the "OK" button.
7. Check if the all 3 vertical line is alined correctly in the adjusted dot size pattern. If
you can watch the misaligned pattern, repeat the step 3 to Step10 until the Bi-d
adjustment pattern is alined.

5.1.7 USB ID input

When you replace the main board with a new one, you have to input the USB ID newly
into the specific address of the EEPROM.
When the Printer and the PC are connected with a USB cable, the USB port driver
loads the unique code from the specific address of the printer's EEPROM and the
provides the USB port number to the unique code. The USB port driver controls the
several USB ports under the Windows 98 environment.
A unique code called USB ID is input to the specific address of the EEPROM in our
manufactory and the following total 18-digit code is used as a USB ID for the EPSON
ink jet printer.
Overview
Revision B
107