Ribbon Assist Roller - Intermec EasyCoder 501 XP Service Manual

Chapter 8 Print Unit
8.10 Ribbon Assist
Roller

Ribbon Assist Roller

Locking Screw
66
Description
The purpose of the ribbon assist roller is to help the ribbon rewind
unit to keep the transfer ribbon tight, thereby avoiding ribbon wrin-
kling, which could ruin the printout. The angle of the ribbon assis-
troller relative to the printhead is adjustable.
The ribbon assist roller is subject to very little wear and is expected
to last as long as the printer as a whole. Replacement involves
removing the belt and pulley as well as the upper, outer gable of
the print unit (see illustration in Chapter 8.9.)
Adjustment
If the ribbon becomes wrinkled, a few checks should be performed
before the ribbon assist roller is readjusted:
• Is the printhead pressure properly adjusted?
• Is the green edge guide correctly positioned?
• Is there anything that may interfere with the transfer ribbon, for
example 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 lever.
• Insert the #T20 Torx screwdriver through the hole at the top of
the upper print unit gable. The key will engage cogs in the plate
that holds the outer end of the assist roller inside the gable.
#T20 Torx Screwdriver
Intermec EasyCoder 501 XP – Service Manual Ed. 4