Figure 5-15 Printing The 300 X 300 Dpi Latent (Pre-Transfer) Image On The Drum) - Tektronix Phaser 360 Service Manual

1 of 4
2 of 4
3 of 4
4 of 4

Figure 5-15 Printing the 300 x 300 dpi latent (pre-transfer) image on the drum)

The advantage of this print method is that variability between jets is "averaged
out" by being interlaced with three other jets. As shown in the illustration, of the
28 pixel columns printed by any single jet, only two of its pixel columns are
actually ever adjacent. Usually they are separated by three other pixel columns
produced by other jets, hence the name four-jet interlace. Because of the 28 pixel
spacing between jets and the 117 pixel-wide field that each jet travels, the pixel
columns of any one jet actually interlaces with the pixel columns of six other jets,
although no more than four at any one time.
28 pixel
separation
between jets
1 Step
2 Step
117 pixel-wide
field traveled by a jet
2 Step
Columns of pixel
dots produced by
previous set of four
adjacent jets. Note
how the ending
columns of this set
interlace with
beginning columns
of the next set of
four jets.
Service Manual
5
Theory of Operation
Output of four
side-by-side jets
1 of 4
2 of 4
3 of 4
4 of 4
Column of pixel dots
produced by four
adjacent jets are
interlaced together
for 300 dpi printing.
Each jet produces
28 pixel columns.
For 600 dpi printing,
each jet produces
56 pixel columns.
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