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(11) | EP 0 955 174 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Bi-directional printing with controlled hue shifts |
(57) Bi-directional color printing mode is achieved with colors applied in the same order
regardless of which direction an inkjet pen is moving relative to a media sheet. For
one approach a first pass of color printing onto virgin paper is performed only while
the inkjet pen (14) moves in a prescribed direction (72) across the media (56). Printing
a second pass then occurs while the inkjet pen moves in the opposite direction (70)
across the media. The printhead prints in the same order regardless of which direction
the inkjet pen moves across the media sheet. |