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SOFTJET GRAND
Vertical Check
The vertical alignment test is performed to check the vertical alignment of all heads with reference to
the Magenta head. To execute vertical alignment test, click on the
Vertical Check
button on the
Calibration Wizard
.
Samples of Good and Bad Vertical Alignment Test Result is shown in the below figure:
Fig 44: The Good and Bad Vertical Alignment Test Result
When a Print Head is aligned with the reference Print Head (Magenta), then in the test print this would
be evident by perfectly aligned vertical nozzle lines. In case of vertically misaligned Print Head, its
nozzle lines woul
d be either above or below the reference head’s nozzle lines.
Similarly, check for
other colors (Black, Magenta, and Yellow) with the reference color (Magenta).
Note
: During the mechanical checks, it may possible that it will disturb the angle check or vertical
check. Thus, repeat the mechanical check until the perfect alignment condition is achieved.
After performing the above mechanical checks, please verify the results of bi-direction calibration, left
& right alignment, and step calibration mentioned as below.
Horizontal Calibration
Horizontal Calibration checks the bi-directional, left, and right alignment and corrects it by adding or
subtracting the correction value from the default set value. It has to be performed for each print mode,
whichever
is required. Let’s discuss each type of horizontal test one by one.
Bi-direction Calibration
Bi-
directional calibration is performed to achieve dot placement accuracy between the “Left to Right”
and “Right to Left” print sweeps. If the bi
-direction offset value is correct, the Left to Right test print
would align accurately with the Right to Left test print at
“0”
position. In case of error in the Bi-
Direction offset, the Left to Right and Right to Left print would align at some other point on the scale.
