Brother International HL-2400C Service Manual - Page 290

I-5 Wrinkle / Image Migration Phenomenon Banding shadows of different optical density appear due to wrinkle, image migration and color misregistration occurring on the print paper as shown in print sample (5) of Fig.8-2. Main Causes 1) Print paper other than the recommended paper is being used. 2) The paper discharger unit of the transfer unit is not functioning. 3) Fuser oil in the fusing unit is nearly running out. 4) One side of the fusing unit is lifted up slightly. Countermeasures 1) Use a recommended paper. 2) Confirm if the transfer unit is properly installed to the paper discharger unit and functioning normally. 2-1) Confirm the installation status. 2-2) Clean the paper discharger unit, or replace it with a new one. (See Section 1.2.5 and 2.4 of Chapter VI.) 3) Refit the fusing unit correctly and lock it in position or replace the fusing unit with a new one. (See Section 2.2 of Chapter VI.) VIII-45