Dell B2375dnf Mono Multifunction Printer - Manual (Page 152)

Bypass Mode
In this mode the printer pulls the paper from MPF first unless it is closed or empty. MPF gets
the highest priority and pulls whatever media is present in the MPF.
NOTE: You can use this feature in print and copy job.
Tray Mode
In this mode the MPF is treated as another paper tray. Instead of treating MPF as first
preference paper source, printer pulls paper from the tray that matches the size and type.
The first preference goes to the default source.
NOTE: You can use this feature in print, copy, and fax job.
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