The white plug on the right usually has a locking tab on the top that needs to be
squeezed to release.
Reassemble print head: This can be tricky. Read the instructions fully before starting this
procedure.
Reinsert the wiring plugs, matching the color of the plug and receptacle, seating both
1.
firmly and evenly.
Examine the print head. Near the back edge of the aluminum strip, there are several
2.
holes.
On the left and right there are larger holes, right next to smaller holes. These smaller
3.
holes are where the pins seat when positioning the print head.
Examine the assembly where the print head will be placed. There are two small pins
4.
that match up to the small holes from Step 3.
Above the pins on the same piece of aluminum, there is a strip with a lip. The edge of
5.
the print head will slide behind this lip.
Place the print head back on the assembly. Slide the edge of the print head behind
6.
the lip. Align the pins and holes. Note: The print head will not be centered on the
assembly; rather, the print head will seat properly on the pins when it is somewhat
left of center. Look from the right side to see the print head's right side as it meets
the assembly. When properly placed, there should be NO gap between the print head
and assembly. If there is any gap at all (shaped like a strip or a wedge), the print
head is not placed properly. Maneuver the print head, sliding back & forth, and up &
down, until it is placed properly on the pins and there is no gap. See the PDFs linked
above for pictures of this.
After the print head is placed properly, screw the thumbscrew back in firmly. The
7.
assembly itself is mounted to the printer with springs, so the whole assembly can
wobble a bit, but the print head should be firmly attached to the assembly, with no
wobble and no gap. The thumbscrew is hard steel while the print head is softer
aluminum, so start the thumbscrew gently into the hole to avoid stripping the
threads.
If you use a ribbon, reload it in the proper position.
8.
Try a test print.
9.
