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Issue
Thin lateral lines appear on printing.
Cause and solution
If the printer has not printed for a long time, thin lateral lines may appear in halftone areas of printed paper.
Perform the following procedure in the Printer Status Window.
1. Display the Printer Status Window. [Displaying the Printer Status Window]
2. From the [Options] menu, select [Device Settings] ⋗ [Assisting Print Settings].
3. Select the [Prevent Poor Quality after Long Idle] check box.
If this solves the problem, clear the [Prevent Poor Quality after Long Idle] check box.