Portál AbcLinuxu, 12. května 2025 22:25
White or black lines or bands FRU Print cartridge assembly (not a FRU) Developer drive coupling assembly Action Banding appears as light or dark horizontal lines on a uniformly gray page or on a page with a large area of graphics. Banding is primarily due to a variation in the speed of the paper as it feeds through the printer, especially in the developer and transfer process. Inspect the toner cartridge and paper feed components, especially the drive coupler and drive gears for debris, binds, or damage.
Dirty charge electrodes Clean the electrodes of the drum unit and those of the machine. (Refer to Fig. 2-13 (P2- 56) and Fig. 2-12 (P2-56).) Dirt on the exposure drum Perform drum cleaning. (Refer to “2.1 Drum Cleaning” in Chapter 5.) Scratch or dirt on the fuser unit Replace the fuser unit. High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY.
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