Just as an extreme environmental condition affects other physical forces, it impacts whether toner particles charge to their specified levels. This is why you seldom “get a shock” by touching an object after walking on carpeting in warm, humid spring and summer months, but this does happen when the overall environment is drier.
In more common terms, static electricity is stronger and more observable in a dry environment (a carpeted room on a cold winter day, for example) than in a moist environment. We must remember that the entire xerographic process is based on the behaviors of electrostatic forces. The results can be inadequate dispensing of the toner, background on copies, and even development unit seizure if the situation is extreme.Ī simple connection helps explain why humidity adversely effects these supplies. If the heat is high enough, or the product’s exposure to it long enough in duration, the toner or developer will not perform acceptably in its intended machine application. Remember that developer, too, contains toner in addition to carrier- so the physical reaction is the same.
What does high heat do to these products? In essence, it causes toner particles to stick together (“agglomerate”). If you’ve been in this industry for a long time, you may consider that statement “common knowledge.” But it is surprising how common it is for heat and humidity exposure to affect these products, and for end-users or even service technicians not to recognize the source of their problem when it happens. High heat and excessive humidity have extreme adverse effects on toner and developer.
Also, those of you who are somewhat new to the copier side of the business may benefit from information on the role of developer in a dual-component (toner/developer) system, and the importance of replacing developer at the appropriate, OEM-recommended intervals. Here, we present some easy-to-remember guidelines for storing and handling toner. It is also important to educate end-users on some of these simple concepts. Basic Toner and Developer Storage, Handling, and Replacement GuidelinesĪlthough everyone in the business equipment industry is familiar with toner, it’s surprisingly common to experience performance problems that could be avoided by following some basic guidelines.
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