Brother International HL-2400C Service Manual - Page 302

I-27 Color Missing Phenomenon Color is missing in the printed image as shown in print sample (27) of Fig.8-2. Main Causes Fusing failure due to using damp paper or using the printer under high humidity conditions. Countermeasures 1) Use the paper immediately after open the paper bag. 2) Change the NVRAM setting. (Refer to 'THV TUNE UP' in Section 3.3 of Chapter V.) I-28 Horizontal Line 244mm from the Edge of Paper Phenomenon A horizontal line appears 244mm from the edge of the printed paper as shown in print sample (28) of Fig.8-2. Main Causes Vibration is caused when an OPC belt and the transfer drum contact. Countermeasures Change the resolution to 600 dpi. I-29 Vertical Lines on OHP Phenomenon Vertical lines appear when printing the OHP sheet as shown in print sample (29) of Fig.82. Main Causes Paper dust around the paper exit roller adhering to the OHP sheet. Countermeasures 1) Use the recommended OHP sheet. 2) Clean the paper exit roller. VIII-57