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4-18
Image defect
examples Recommendation
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Toner specks
• Make sure that you use paper that meets the specifications. A
rough surfaced paper may cause the problem. See “What kind
of paper can I use” in Chapter 1.
• The drum unit may be damaged. Install a new drum unit. See
"How to replace the Drum unit" in Chapter 3.
Hollow print
• Make sure you use paper that meets the specifications. See
“What kind of paper can I use” in Chapter 1.
• Select the ‘Thick paper mode’ in the printer driver, or use
thinner paper than you are currently using.
• Check the printer’s environment as conditions such as high
humidity may cause this situation to occur.
All black
• Clean the primary corona wire of the drum unit. See "How to
clean the printer interior and Drum unit" in Chapter 3.
• The drum unit may be damaged. Install a new drum unit. See
"How to replace the Drum unit" in Chapter 3.