Zip Codes Are Not Based on Geography. ZIP Codes were created to expedite mail processing, not to identify neighborhoods or regions. Their boundaries are based on the logistical and transportation needs of the United States Postal Service and not on neighborhoods, watersheds, or community cohesion.
An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity ?. The distance between the plates is 18.0 cm, and the voltage difference is 129 kV.
The negative variation indicates that there is a minimum platen force necessary for good thermal transfer and long pulse life. For wide printheads, the springs that press the printhead against the platen roller should be spaced along the print width to evenly distribute the platen force.