Citizen Systems CLP-621 Manuale Utente

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Front ribbon left-right 
balance adjustment knob

Back ribbon left-right 
balance adjustment knob

Front ribbon tension 
adjustment knob

Back ribbon tension 
adjustment knob

When using narrow-width ribbons or very specialist thermal ribbon material,
it may be necessary to adjust the ribbon tension and ribbon balance
adjustments to avoid ribbon wrinkle or slippage.

The ribbon tension has three adjustment positions on both the feeding side
(back side) and winding side (front side).

Weak

Strong

Strong

Weak

Front

Back

Ribbon width of 4 inches: strong
Ribbon width of 3 inches: medium
Ribbon width of 2 inches: weak

First make a test print and then adjust the printer as required:
• Slippage of the ribbon causes a dirty film to be seen on the media.

Reduce the tension adjusters

• Ribbon wrinkle (diagonal lines across printout):  Increase the ribbon tension.

After making any adjustments, print another test print or two to make sure
the ribbon is feeding correctly.