Oki ML620 User Manual page 84

PROBLEM
Too high or too low TOF
(where printing starts)
Too large or small left and/or
right margins.
When continuous forms are
used, the content of a single
form is printed on two forms.
When cut sheets are used,
the content of a single sheet
is printed on two sheets.
CAUSE
The input application control signal is not
correct.
The interface cable is not properly
connected.
The TOF is not correctly selected.
The left or right margin is not correctly
selected.
The paper length selected in the application
does not match the physical paper length.
The paper setting selected in the application
does not match the physical paper size.
The paper setting does not match the lines
per page automatically detected by the
printer.
SOLUTION
Print in hex-dump mode and verify the data
content. Make corrections in the application.
Reconnect the cable correctly.
Initialize the printer.
Select correct TOF for cut sheet and
continuous forms.
Select the first-line print position and adjust
the paper top position.
Reselect the margin correctly in the
application.
Incorrect positions of the Paper Guide or Pin
Tractors. Select and adjust the position again
depending on the paper type.
Reselect the left and right margins correctly
in the application.
Match the paper length selected in the
application with the physical paper length in
use.
Match the paper setting selected in the
application with the physical paper in use.
Leave enough top and bottom margin in the
application.
Correct the cut sheet LF adjustment.
ML620/ML621 User's Guide