Roland VersaCAMM VP-540 Service Notes page 169

Turn the Adjustment Screw to make the lines of each color
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in the test pattern straight.
Position of the printing moves 1 line by turning
the screw 1/6 turn.
When the lines other than K are above the K lines, turn
the Adjustment Screw CW.
When the lines other than K are below the K lines, turn
the Adjustment Screw CCW.
Adjust the head positions referring to the left-
end K head as the base position. The position
of K head on the left end does not need to be
adjusted.
Tighten the screws fixing the head in order as shown in
15
the figure, using the Torque Driver (ST-056).
Torque for tightening is 2kgf • cm (20cNm).
Make sure not to tighten the screws too strong.
Print the test pattern again.
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If the result is not satisfactory, repeat step 11 to 15.
If the VERTICAL test print reult is satisfactory, select
[HEAD ADJUST]> [BIAS]> [TEST PRINT], and print the
BIAS test pattern again.
If the BIAS test print result is not satisfactory, repeat
BIAS ADJUSTMENT.
The shifting of lines should be smaller than 1/2
dot.
ADJUSTMENT SCREW
2
SERVICE MENU
PRINT MENU
PRINT MENU
HEAD ADJUST
HEAD ADJUST
BIAS
BIAS
TEST PRINT
4-28
3
1
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