Solution
There are three types of 2-sided copying.

1-Sided->2-Sided

2-Sided->2-Sided

2-Sided->1-Sided
NOTE
- <2-Sided> may not be available with some sizes and types of paper.
- <2-Sided> is not available when using <Paper Save Copy> or <ID Card Copy>.
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<2-Sided>

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Select the type of 2-sided copying

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(a) Types of 2-sided copying
Select the type of 2-sided copying you want to use.
Specify if you want to change the binding, such as when copying book-type documents in calendar-type format.

If you want to copy portrait-oriented documents in calendar-type format (short-edge binding)
<Orig/Fin. Type>

<Portrait>

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<Calendar Type>

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If you want to copy landscape-oriented documents in book-type format (short-edge binding)
<Orig/Fin. Type>

<Landscape>

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<Book Type>

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If you want to create copies with a different binding type than the original
<Orig/Fin. Type>

Select the original orientation

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Select the original binding type

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Select the binding type for the finished copy, which is different from that of the original document

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This setting is required to align the direction of the output paper.

When a 2-sided document is in portrait-oriented calendar-type format (short-edge binding)
<Orig/Fin. Type>

<Portrait>

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<Calendar Type>

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When a 2-sided document is in landscape-oriented book-type format (short-edge binding)
<Orig/Fin. Type>

<Landscape>

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<Book Type>

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