Canon C3220, Copying Manual

Page: 21 / 372

xix
■
Fading Due to Exposure to Light
As with all printed material and photographs, this is not a problem if the copies are stored
under normal conditions. Color copies exposed for two years to the fluorescent lighting
used in general offices will hardly fade, depending on the storage conditions. Color copies
should be stored in binders or in locations that are not exposed to light if they are to be
kept for a long period of time.
■
Use of Clear Covers
Do not use PVC type transparent covers. If copies are stored in such covers, toner on the
copies softens, causing the copies and covers to adhere to each other.
■
Use of Adhesives
Only adhesives that do not dissolve toner should be used for mounting copies; solvents
dissolve toner. Be sure to check the ingredients of the adhesive before you use it. Test
some adhesives with an unwanted color copy before you use it with a valuable copy.
■
Inserting Copies Between Printed Pages
When copies are included in books, the solvents contained in printing ink may cause the
toner to soften. The printed pages should, therefore, be thoroughly dried to evaporate any
solvents before the copies are inserted.
■
Folding Copies
Color copies differ from black-and-white copies in that toners of four colors are used.
These toners are deposited on the surface of the paper in a layer considerably thicker
than black-and-white copies, and they may peel if the copy is folded or wrinkled. Copies
should be stored in flat transparent covers, in binders, or carefully rolled.
■
Effect of High Temperatures
If copies are left in high-temperature areas (near heaters, stoves, etc.), the toner will melt,
and the colors will mix.
Preserving Color Copies