Oki LD670 User Manual page 24

Note : Red or blue printing on two-color thermal paper has an inferior preservation
characteristic that is equivalent to that of normal thermal paper.
Note : Printouts on label paper or thick paper may contain blurs or voids,
depending on the humidity and other environmental conditions.
Adjust the print speed and print density as appropriate for the type of paper
used.
(See Examples (1) and (2) in Section 10-2, "Setting Up the Printer.")
In particular, note that the paper transport accuracy may be negatively
affected by printing a barcode in the top margin at the beginning of paper
transport or in the Lower margin at the end of paper transport.
Note : The outside core diameter is assumed to be 32 mm.
If roll paper with an outside core diameter of other than 32 mm is used,
the paper-near-end detection accuracy deteriorates.
Note : If roll paper with an outside core diameter of less than 32 mm is used, a
transport error may occur when the cutter cuts the paper in full cutting
mode and reaches the core.
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