HL-4050CDN
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常见问题解答与故障排除 |
Uneven density appears periodically in the horizontal direction.
![](/g/b/img/faqend/faq00002309_001/cn_ot/en/7120/density1.gif)
- Identify the color that is uneven and put in a new toner cartridge for that color.
To see how to replace the toner cartridge, click here.
- Put in a new drum unit.
To see how to replace the drum unit, click here.
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