How Does Printer Toner Work? – Blade

Introduction of Printer Doctor Blade and Printer Wiper Blade

Each component inside a laser printer has its own mission to work together and deliver various prints. You can see the whole picture from our previous article: How Does Printer Toner Work? Here, the main character in this article will be the blade.

What is a blade?

To wipe off the toner, or not to wipe off the toner, that is a blade. Basically, there are two kinds of blades inside a laser printer: a doctor blade and a wiper blade. A doctor blade helps level the toner delivering to the developer roller and a wiper blade helps remove the excessive toner from the OPC drum.

Features of doctor blade:

As mentioned, a doctor blade helps level the toner and controls the thickness of the toner as requested. Therefore, a good doctor blade should be made in precise thickness, and with a good characteristic of abrasion resistance. Furthermore, a metal doctor blade with coating has become a trend among various printer designs. With the strength of the coating and the benefit of a stainless-steel body, a metal doctor blade can decrease the influence of static to level toner smoothly and can prevent the toner from sticking to the blade.

Features of wiper blade:

When an OPC drum completes transferring the toner image to the paper, approximately 5 to 10 % of the toner may remain on the OPC. If these residual toners exist without being wiped off, they may transfer to the paper in the next round and cause a damaged image. A common material for a wiper blade is PU which is non-conducting. The material property can prevent residual toners from attaching but also requires constant replacement since it’s more easily worn.

Cartridge Web Compatible Toner Cartridges

For Cartridge Web compatible toner cartridges, we ensured our products are compatible with the OEM toner and conducted numerous tests to qualify how our toner engaged with the printer, including its consumables such as blades. Cartridge Web is always your top choice when it comes to the alternative to OEM. If you’re interested in quality laser toner, we are more than happy to receive your request via Looking forward to hearing from you soon!