Service manual

The Printhead Assembly
5-15
5. Push the lens through the mounting hole.
6. Finish removing the sensor by pulling the sensor through the mounting hole.
Figure 5-9 Removing the Optical Paper Sensor
A. Printhead switch pin
Replacing the Printhead Assembly
To replace the printhead assembly, perform the above procedure in reverse order. See
Figure 5-11 for the correct positioning of the printhead.
1. Tuck the printhead wires behind the hooks on the printer drive assembly.
2. Place a finger under the printhead wires to create slack, as shown in Figure 5-10. Be
sure there is enough slack in the cables to allow the printhead full range of motion.
3. Place the long side of the foam block in the top cover assembly between the side of
the top cover and the printhead well to keep the wiring in place. Be sure to maintain
the slack in the cables while inserting the foam block.