Epson Stylus Color 400 Service Manual download pdf (Page 103)

Chapter4 Adjustment

Rev. A

4.2.2.5 Bi-D Adjustment

This adjustment is to correct dispersion of printing positions caused by slippage of printing timing in right

and left direction during the bi-directional printing. Therefore, it is required to perform this adjustment

if the following operations are performed.

1)When exchanging the Print mechanism 2)When exchanging the C206 main board

3)When exchanging the CR motor 4)When exchanging the Carriage

5)When exchanging the Assembly 5)When exchanging the Print Head

The values which are set in this adjustment are registered in the EEPROM of the main board as correct

values of print timing in the right and left direction.

CAUTION

Before performing this operation, refer to the table 4-2 and perform appropriate adjustments or

operations.

1. Connect the printer and PC and turn on the printer. Install the newly opened black and color link

cartridge. (If C206 main board is exchanged, initial ink charge is performed automatically.)

2. Insert the disk of adjustment program to the floppy disk drive of PC. Type Load”

a:\J80C10E

and

press the return key.

3. After running the adjustment program, press the return key on the [Screen-1] of the menu indicated

on the PC screen. Then, press the return key again on the [Screen-2].

4. Select “1”(WORLD) on the Customer [Screen-3].

5. Input “2” (Cartridge) on the ink supply method selection screen, [Screen-4] and press the return key.

Note)

Do not press “1”(Jig) at this point, because it consumes ink more than necessary.

6. Initial menu screen [Screen-5] appears. At this point, select “1”(Production).

7. On the main screen [Screen-6], select “4”(Bi-D Adjust). After this, three Bi-D patterns are printed

automatically back and forth, as centering the presently set center value.

8. Check the Bi-D pattern and find out that the value should be adjusted to (+) side or (-) side.

Note)

At this time, if the predicted value is quite different, comparing the present center value,

change the center value by the following procedures.

[Step8-1] On the [Screen-7], input “Y” once and return to the main screen [Screen-6].

At this time, the presently fed paper is once ejected.

[Step8-2] On the main screen, the screen goes back to initial menu [Screen-5] by inputting

“E” key and pressing the return key.

[Step8-3] On the screen, input “6”(Bi-D Center) and press the return key.

[Step8-4] Since the screen asks you New Bi-D Center, input a now value and press the

return key. The screen goes back to the initial menu screen [Screen-5] and make

sure that the new value that you input is in the “6” of the Bi-D Center.

9. Determine a value as goal and input random value on the [Screen-7]. The Bi-D pattern will be printed

again by pressing the return key.

If proper lines are found among the three patterns, input that value again on the [Screen-7] and

press the return key. For confirmation, only the pattern by selected value will be printed.

If it is O.K., press ”Y” and eject the paper. If you want to try again, input random value on the

[Screen-7].

Note)

Each time one parameter is changed, line moves at each 1440-DPI.

10. Repeat the procedure 7 through 9 until Bi-D pattern becomes appropriate.

11. After completing adjustment, turn off the power and input the setting value in the EEPROM.

From the next time, setting value will be reflected.

CAUTION

Since [Screen-1] through [Screen-6] are attached in the end of this chapter, refer to them for

procedures above.

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Epson Stylus Color 400 Service Manual Page 103

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