Technical Bulletin
tib 1006-001
RJ-900 Print Head Alignment
RJ-901C/RJ-900C Maintenance Manual 5 Self-Diagnosis Mode
5-35
5.5.7 Repeatability Adjustment Menu
This menu is used to align the head positions for repeatability printing.
To align the head position for repeatability printing, at first print out a Bi-D printing and identify the
difference between the CW printing position and the CCW printing position. Then, enter the difference
between the relevant parameters.
Due to head characteristics, only one adjustment value is used for all nozzle rows. Therefore, adjust the
setting value so that performance of each row becomes average.
Adjustment items are shown in the tables below.
The actual procedure is as follows.
1. Set media as necessary.
2. After media is set, the machine prints out repeatability adjustment patterns.
Table 5-8 Bi-D Items
Adjustment Item Contents
Repeatability adjustment
Low 1
Bi-D adjustment for low head height, PG 1 value, using 3-peak waveform
Repeatability adjustment
Low 2
Bi-D adjustment for low head height, PG 1 value, using 6-peak waveform
Repeatability adjustment
High 1
Bi-D adjustment for high head height, PG 2 value, using 3-peak waveform
Repeatability adjustment
High 2
Bi-D adjustment for high head height, PG 2 value, using 6-peak waveform
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