HL-4050CDN
 |
常见问题解答与故障排除 |
White lines or bands or ribbing across the page.
Please check the following points:
- Make sure that the printer is on a solid level surface.
- Make sure that the toner cartridges are installed properly.
- Make sure that the drum unit is installed properly.
- Put in a new drum unit.
To see how to replace the drum unit, click here.
如果需要更多的帮助，请联系 Brother 客户服务中心：
相关型号
HL-4040CN, HL-4050CDN
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