![Print Quality Problem - Hollow print Print Quality Problem - Hollow print](/g/b/img/faqend/faq00000011_037/th/en/21812/HollowPrint.jpg)
Check the following points to resolve the issue:
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Select Thick Paper mode in the printer driver or use thinner paper than you are currently using.
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Check the machine's environment. Conditions such as high humidity can cause hollow print.
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The drum unit may be damaged. Replace the drum unit with a new drum unit.
> Click here to see how to replace the drum unit.