Jams can be more prevalent, but some papers are better than others. Both recycled paper quality and photocopier designs are improving. Work with your photocopier supplier and service provider to achieve the result you want. Most recycled copier paper will work perfectly well in machines. Recycled paper is particularly prone to moisture absorption, so storage at correct temperature and humidity is recommended to reduce the incidence of jamming.
Some papers have less impact than others.
Considerations include fibre source, energy consumption, water effluents, gaseous emissions, and solid wastes. The paper industry does not use tropical hardwoods and does not contribute to the destruction of tropical rain forests. Paper is made mainly from softwoods from Northern Forests, with a small amount of specifically planted Eucalyptus grown in tropical areas. There can be no definitive statement on which uses more energy because each forest, producer, vehicle, mill and so on will have its own way of working, and the different types of energy-use also have different environmental impacts. Scientific research is being undertaken to try to answer this question.