6Faint or dark print

Is the print head gap set properly?

Yes No

Adjust the printhead gap (see section 5).

Remedied?

No Yes

End

Replace Printhead.

Remedied?

No Yes

End

Replace Driver board.

Remedied?

No Yes

End

Replace Ribbon feed mechanism.

6 – 15

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Image 118
Oki 3321, 3320 specifications