Paper with a high ash content (calcium carbonate) can cause paper feed jams in the paper feed units of the main machine and LCIT RT5070 or RT5080. In the photo below, [A] shows normal paper fibers and [B] shows paper fibers contaminated by extremely fine calcium carbonate particles.
These particles are extremely small and easily transferred from the paper to roller surfaces. This causes the roller surfaces to become slick so they no longer have enough friction to grip the paper for efficient paper feeding.
Signs of this problem are:
- Paper fails to feed and starts causing frequent jams at the 50K service life of the rollers
- Rollers appear smooth and have not reached the end of service life
- Paper dust appears powdery, not grainy
- Leading edges of paper appear damaged as shown below