Technical Bulletin
tib 1006-001
RJ-900 Print Head Alignment
RJ-901C/RJ-900C Maintenance Manual
5 Self-Diagnosis Mode
5-37
5. If any parameters are changed, make sure to update the parameters.
Next menu
Next menu
Media set
Finish printing
If media is not set
Ex.) Bi-D Adjustment Low1
Adjustment printing
Previous menu
Previous menu
[Enter] key
Head Gap change
Previous menu
1 pulse (= 1/2880 inch)
increments
[Cancel] key
Magenta shown below, average across the entire width of the test print then repeat for all other heads and heights.
Ideal
Incorrect
In Spec
Out of Spec
Out of Spec
Proper alignment:
Imaginary line through
the center of the primary
dots in both the upper
and lower section of the
test pattern.
Incorrect alignment:
The imaginary line
through the center of
the primary AND satalite
dots as a group. Alignment
is for the primary dot only.
Allowable alignment:
Dots are 1/2 pixel off.
Though specifications
are met, this pattern
should be adjusted closer
to ideal alignment.
To align the condition
above, change the
number on the LCD
to a smaller (more
negative) number.
To properly align
for the condition
above, change the
number on the LCD
to a larger (less
negative) number.
# 1 ALL (Low)
# 2 ALL (Middle)
# 3 ALL (High)
1A
2A 1B
2B
3A
3B
4A
4B
# 4 ALL (High 2)
5B 5A
6B 6A
4 Head heights
Toucan LT Step 4:
Bi-directional Alignment
As with the Uni-D (CW) alignments, 1 dot of movement equals 9 increments on the display.
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