You don't say when the bands occur. If they're in the scanned image (on screen) the problem is the scanner. If it's on the printed picture, then the problem is in the printer. Incidentally there's one for sale (re-furbished) on Amazon if you're interested (priced at £29.99) - I've included a link to the page.
Raster Scanning: Raster scan is based on television technology. In this the electron beam is swept across the screen, one row at a time i.e. top to bottom, which creates a pattern of illuminated spots. The total scanning has 525 or 625 lines based on the CCIR standard. Random Scanning: In random scanning, the electron beam directed writes on the CRT screen to the pixels where a picture normally alphanumeric character, special symbols or any other user defined symbols is to be drawn. In Random scanning, only one line is drawn at a time and therefore, these are also known as stroke or vector display.
Striations
There are no Australian animals with black and white stripes. Tasmanian devils are black with a white stripe across their chest. Numbats are tan with black stripes, and the Thylacine was grey-brown with black stripes.
RAID 10
colorful stripes across the sky in poetry
Did You Mean Across Button ?
Yes. The stripes on the numbat's back and across its eyes help it to camouflage effectively in its bushland habitat.
True.
cheats
There is no single picture of where the 36th parallel is. The 36th parallel is an imaginary line across the earth.
What have you taken?
There are 13 stripes on the flag of the United States of America. Six white and 7 red stripes. However, from 1795 to 1818 our national flag had 15 stars and 15 stripes representing the 15 states of the USA at the time.