Epson Stylus Color 660 Manual de serviço - Página 33

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EPSON Stylus Color 660

5.2.1.9 Bi-D Adjustment

You perform this adjustment to correct differences in printing positions,

which is caused by incorrect printing timing in right and left directions

during the Bi-directional printing. Therefore, you are required to perform

this adjustment after performing the following operations.

Replacing the Print mechanism

Replacing the main board

Replacing the CR motor

Replacing the Carriage Assembly

Replacing g the Printhead

1. Select "Bi-Directional Adjustment" in the adjustment menu (Figure

5-16). The following screen appears.

Figure 5-25. Bi-D Adjustment Menu

Chapter 5

Adjustment

2. Select "Print the Bi-D adjustment pattern" on the screen, and the

screen bellow appears.

Figure 5-26. Print the Bi-D pattern

3. Click OK. The printer starts printing a Bi-D adjustment pattern. (See

the sample pattern in the following page.)

NOTE: As shown in the sample, gaps between passes are

sometimes created in different directions among patterns.

This unexpected change in direction is caused by an ink jet

printer-specific reason, which is an ink jet printer inevitably

performs a periodical cleaning specified by the flashing timer

even during Bi-D pattern printing, so that the printing

direction suddenly changes. 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.

Revision A