Epson Stylus Color C70 Service Manual page 150

EPSON Stylus COLOR C70/C80
NOTE: The following four items are adjusted with the Bi-D adjustment.
1. Variable Sized Dot 1 (for 360<H> x 360<V> dpi printing)
2. Variable Sized Dot 2 (for 720<H> x 720<V> dpi or for 360<H> x
720<V> dpi printing)
3. Variable Sized Dot 3 (for 1440<H> x 720<V> dpi printing)
4. Economy black dot (for 360<H> x 180<V> dpi printing)
NOTE: Also, the Bi-D adjustment has 2 modes for both black and color
adjustment.
4. Select "Printing the Bi-D adjustment pattern", and press "O.K." button. Printer
starts printing Bi-D pattern with reflecting current registered parameters.
Following is the next screen indicating during the Bi-D pattern print. (2 papers are
required to print out completely.)
Figure 5-23. Program Screen during the Bi-D pattern print
Adjustment
5. A Bi-D adjustment pattern includes items shown in the sample in figure below.
Following shows the 1
Bi-D Adjustment
Variable DOT
Data = -23
Data = -21
Data = -19
Variable 2 DOT
Data = -27
Data = -25
Data = -23
Figure 5-24. Bi-D Pattern printed on 1
Adjustment
st
page pattern,
Data = -27
Data = -25
Data = -23
Data = -27
Data = -25
Data = -23
st
Revision A
page
150