Part 4: Technical Reference |
3.2.3 Nozzle arrays
In each of the BJ print heads, the nozzles are arranged in vertical rows at a pitch of
Nozzle 310
Nozzle 2
Nozzle 1
Ink optimizer nozzle | Black nozzle |
Cyan: 80
nozzles
Magenta: 80 nozzles
Yellow: 80 nozzles
Nozzle 240
Nozzle 161
Nozzle 160
Nozzle 81
Nozzle 80
Nozzle 2
Nozzle 1
Photo nozzle Color nozzle
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| Nozzle 81 |
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| Nozzle 80 |
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| Yellow: | 80 | nozzles |
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Print direction forword |
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(Direction in which carriage travels) |
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Figure 4-19 Nozzle Arrays
In addition to the nozzles shown in Figure
Also, the color head and photo head have 16 nozzles separating each color, and designed to prevent neighboring colors mixing. The dummy nozzles and color separation nozzles are not used for printing.
In the black head and ink optimizer head, up to 304 nozzles are used for printing.
Nozzles 1 to 3 and 308 to 310 are for adjusting the print head alignment (between the color head and photo head). According to the alignment value, the 304 nozzles actually used in printing may shift up or down within this range of 6 nozzles.
Because the black head and ink optimizer head, and the color head and photo head, are arranged symmetrically around a center point, the nozzle arrays are reversed.
For details of alignment, see Part 3, section 1.3.3, "Installing the BJ cartridge" step 3) "Aligning the print heads" (page
