UBI EasyCoder 501 SA, Руководство по обслуживанию

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UBI EasyCoder 501 – Service Manual
175
24. PRINT QUALITY ADJUSTMENT, cont'd.
24.3
Mechanical Adjustments,
cont'd.
Continued!
Ribbon Return Roller:
The alignment of the ribbon rewind roller is important for avoiding
ribbon wrinkling. The roller is factory-adjusted, but may require
additional adjustment later on.
If the ribbon becomes wrinkled, a few checks should be performed
before the ribbon return roller is readjusted:
• Is the printhead pressure properly adjusted?
• Is the green paper guide ring correctly positioned?
• Is there anything that may interfere with the transfer ribbon, e.g.
the printhead cables.
If the wrinkling problem remains, proceed as follows:
• Using a #T20 Torx screwdriver, loosen the locking screw that
runs in the crescent-shaped hole in front of the headlift knob.
• Insert the #T20 Torx screwdriver through the hole immediately
below the locking screw. The key will engage cogs in the plate that
holds the outer end of the return roller inside the upper gable.
• By turning the Torx screwdriver, you can move the outer end of
the roller back and forth:
- Turn it clockwise to move the end of the roller forward.
- Turn it counter-clockwise to move the end of the roller rearward.
Ribbon Return Roller
Locking Screw
#T20 Torx
Screwdriver