Pressing Roller - Intermec EasyCoder 601 XP Service Manual

8.2 Pressing Roller

Intermec EasyCoder 601 XP – Service Manual Ed. 2
Description
The pressing roller is coated with silicon rubber. It is imperative that
the roller is clean and free from uneven wear or dents. The pressing
roller is identical to the rewind roller, but not to the ribbon return
roller. It is normal that the pressing roller needs to be replaced after
a period of time depending on print volume and other circum-
stances.
Replacement
• Turn off the power to the printer and disconnect the power cord.
• Open the front and right hand doors.
• Remove the cover over the electronics compartment, which is
held by eight #T10 Torx screws.
• Remove the tension of the belt to the ribbon rewind unit by
loosening the two #T20 screws that holds the ribbon rewind unit.
• Dismantle the stepper motor from the bracket by removing the
two #T20 Torx screws.
• Free the belt from the pulley of the ribbon rewind unit and
manipulate the stepper motor so it comes free from both belts.
Remove the stepper motor.
• Remove the belt from the pulley of the pressure roller.
• Insert a 2 mm hexagon key through the semicircular slot in the
front plate and loosen the grub screw that holds the pulley on the
shaft of the pressing roller.
• Using a #T20 screwdriver, remove the bracket that holds the
outer end of the pressing roller and pull out the entire package.
• Reassemble in reverse order using a fresh set of roller and
bearings. When fitting back the pulley on the pressing roller
shaft, check that the distance between the pulley and the inner
gable of the print unit becomes 5 mm (.2").
• When putting back the stepper motor, fit the short belt first, while
letting the long belt hang loosely on the idler in a loop, through
which you can insert the pulley of the stepper motor. Do not put
the long belt around the pulley of the ribbon rewind unit until you
have fitted the stepper motor to the bracket and checked that both
belts are engaged by the stepper motor's pulleys.
• Adjust the tension of the belts as described in chapter 8.5 and put
back the cover.
Refer to illustration on next page!
Chapter 8 Print Unit
42