Roland VersaEXPRESS RF-640 User Manual page 38

Setup of Media
5.
Performing the correction for misalignment in bidirectional printing
This machine prints by the bidirectional mode (in which the print heads perform printing during
both their outbound pass and return pass). This printing method is called "Bidirectional Printing. " This
method offers the advantage of being able to shorten print time, but subtle misalignment occurs
2
during the outbound and return passes. The procedure to correct this and eliminate misalignment
is "Bidirectional Correction. "

ADJUST BI-DIR
[SET]

INPUT
ADJ.

ADJUS T BI-DIR
0
Current correction
value
To decide a Correction Value
Choose the value that produces the least misalignment of 2 lines. When wavering between two numbers,
select half value.

REDO ADJ. ?
YES
For the individual setting method of this setting item and the description, refer to  P. 84, "Correcting for
Misalignment in Bidirectional Printing".
36
Press
NEXT
Press
The test pattern of bidirectional correction is printed.
When the screen on the left appears, press
VALUES
Press
+6
Press
Value to be set
-20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20
[To confirm again/adjust again]
[DONE]
Press
Press
The test pattern of bidirectional correction is printed again. Go back to the
procedure
[To go to the next after correction is completed]
Press
Press
to select [SET].
to enable the setting.
to set the correction value.
to enable the setting.
= Current correction value
to select [YES].
to enable the setting.

and set again.
to select [DONE].
to enable the setting.
.
The least misalignment