Oki ML620 User Manual page 85

PROBLEM
The content of a single line is
printed in two lines.
When continuous forms are
used, several blank lines
appear in the print-out.
Broken and uneven vertical
lines.
Too large or small line
spacing.
Split print
Blanks or deformed characters
appear in double-height type
or other extended types.
Improper cut sheet feed
No paper feed.
Continuous forms instead of
cut sheets are fed.
Paper distortion.
Unable to eject.
CAUSE
The left and/or right margins are not
correctly selected.
Tear-off perforation spacing is selected.
May happen in bidirectional printing.
Line spacing is not set correctly.
A paper feed error due to line feeding when
printing a single character.
Sheets are located off the paper guide.
Sheets are not loaded to the end.
The printer is in the continuous forms
mode.
Sheets are not loaded to the end, or they
are not inserted straight.
Paper with wrinkles, folds, or other defects.
Paper not specified for the printer.
The key was pressed.
LF/FF
SOLUTION
Reselect the left and right margins correctly
in the application.
Cancel tear-off perforation spacing.
Adjust the Print Registration.
Reset line spacing correctly in the application.
Use the printer's built-in fonts when printing
important documents or bills.
Load sheets with their left edges against the
paper guide.
Load sheets to the end.
Eject the continuous forms and select the
printer's cut sheet mode.
Load sheets to the end.
Change paper.
Use paper types specified for the printer.
Press the key.
LOAD/EJECT
ML620/ML621 User's Guide