How to identify the quality of copy paper

1. Thickness

When using A4 copy paper in an electrostatic copier, the ideal thickness is generally between 60 to 80 grams per square meter. Some copiers can handle thicker paper, so be sure to check your machine’s specifications for the best results.

2. Surface Brightness

For electrostatic A4 copy paper, a slightly higher surface brightness is acceptable. However, if the surface is too smooth, it can negatively affect the fusing process and make it harder for the toner to adhere. For single-sided copying, single-sided paper works well, but if you have a double-sided copier, it’s better to use double offset paper. Ideally, the surface of the copy paper should be white for optimal clarity.

3. Paper Density

The density of the A4 copy paper fibers should be fine and compact. If the fibers are too sparse or too coarse, it can compromise the quality of the copied image. Additionally, this can lead to paper fluff, dust, and dirt accumulating in your copier, which can cause further issues.

4. Paper Stiffness

Some A4 copy paper may have the correct weight but still not be suitable for use in your copier. Remember, weight and stiffness are not the same. Poor stiffness can cause the paper to wrinkle or jam if it encounters any resistance during the feeding process.

5. Moisture in Paper

Moist paper has reduced insulation properties, which can significantly impact the quality of your copies. Make sure to store your A4 copy paper in a dry environment to maintain its performance.

6. Paper Cutting

A4 copy paper fibers run in different directions. If you cut the paper along the direction of the fibers, the long edge will be "vertical" and the short edge will be "horizontal." For electrostatic copying, it’s best to have the fibers running vertically. This orientation provides better stiffness, reduces resistance during operation, and minimizes the risk of tearing.

7. Paper Loading

While loading A4 copy paper into the electrostatic copier may seem like a small detail, it’s crucial to do it correctly to avoid paper jams. When retrieving paper, stack it properly. Do not mix the bottom half of the upper stack with the top half of the lower stack in the same paper tray, as this can easily cause jams.