The paper path of a laser beam printer (LBP) is an important factor which can affect jam, skew and acoustic noise due to paper transport. As the process speed of the printer is increased and the changing cycle of a model is reduced, the prediction of paper transport is required. Until now, the design of a paper path has been relied on the sense of a designer. But as the process speed of the printer increases, the inertia of paper, which affects the behavior and deformation of paper, also increases, which makes it difficult to predict paper transport and to apply the existing results achieved in other applications to new application. Thus, there have been many trials to predict paper transport using simulation tools. In this paper, the dynamic behavior of paper of a LBP is investigated using RecurDyn, which is a dynamics analysis software, to suggest a design method of a paper path. There showed some examples; applications of the ADF path design of a multifunctional LBP (MFP), the exit path design of a LBP, the paper guide design of a LBP for low acoustic noise and so on.