5 Replacement
84
S84-ex/S86-ex Service Manual
9 On the print head assembly, remove two screws . Then carefully remove the frame
of the print head assembly and remove the timing belt (Ribbon
unwinder (306)) .
10
Replace the defective timing belt (Ribbon unwinder (306)) .
11
Perform the assembly with the reverse procedure.
After replacement
• Adjust the tension of the timing belt.
Refer to
Section 4.9 Adjusting the Timing Belt Tension (Ribbon Motors, Optional Ribbon Saver
Motor)
.