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1.2.2 Print driving method
The printer's drive system enables a maximum of 600 × 600 dpi for black and 2400 ×
2400 dpi for color. The vertical resolution applies to two nozzle arrays for each color.
In the case of black, the two nozzle arrays have 300 dpi. Since their relative position
to each other has been shifted by 600 dpi, both nozzle arrays together attain 600 dpi
resolution. This enables 600 dpi resolution with single-pass printing.
To enable a horizontal resolution of 2400 dpi, 3-dot printing is made possible in 600
dpi intervals.
There are a total of eight patterns to enable or disable printing between the 600 dpi
dots.
Since it is impossible to heat the nozzles successively in the horizontal direction at
2400 dpi intervals, the heating is broken into four passes. Thus, 2400 dpi printing
requires four or more passes to be driven. However, the places that will be printed
during a pass are determined by a random mask pattern. Therefore, it is not fixed.
Part 3: Technical Reference
S600
3-4
0
Data
1
2
3
4
5
6
7
Print (1) /No printing (0)
Printing
000
001
010
011
100
101
110
111
010
600 dpi interval
Figure 3-4 Printing Driving Method