Installing The Ribbon - Texas Instruments 880 User Manual

2.4 INSTALLING THE RIBBON
CAUTION
Use of ribbon not meeting TI speci-
fication 2246601 can cause exces-
sive printhead wear and may void
warranty. (TI ribbon Part No.
2246601.)
Follow these steps to install a new ribbon.
1. Set the power switch to the OFF position.
2. Open the printhead door.
3. Make a note of the position of the print-
head adjustment lever. Then move the
lever away from the platen by pushing the
lever slightly to the right and then pulling
it to the front of the printer as shown in
Figure 2-5.
PRINTHEAD
RIBBON~REVERSING
ARM (LEFT)
NOTE
Make sure that the ribbon-reversing
eyelet (Figure 2-7) is between the left
ribbon-reversing arm and the left spool
hub; if it is not, the ribbon will not
reverse. Also make sure that the ribbon
rides on the ribbon guides and inside
the left end-plate.
2222627~8
Figure 2-5. Printhead Adjustment Lever
RIBBON PATH
,
I~
RIBBON~REVERSING
ARM (RIGHT)
TAKEUP~
SPOOL
L-SUPPLY
2-4
SPOOL
'2222627~9
Figure 2-6. Ribbon Path
4. Lift the old ribbon spools off the hubs and
lift the ribbon out of the ribbon path.
5. Set the empty spool of the new ribbon on
the left spool hub with the ribbon toward
the front of the printer. Pass the ribbon
out along the ribbon path as shown in
Figure 2-6.
2222627 ~ 10
Figure 2-7. Ribbon-Reversing Eyelet