The paper exit for the shift tray has four air nozzles.

 

From these nozzles, the shift exit fans [A] blow into the space between the ejected paper and the stacked paper in order to make an air layer there.

This prevents the ejected sheet, especially thin paper, from getting buckled.

 

Related SP
SP NameSP No.Option
Stacker1 Air Assist Vol Adj

SP6-605-001 : A3 SEF

-002: B4 SEF

-003: A4 SEF

-004: A4 LEF

-005: A5 SEF

-006: A5 LEF

-007: B5 SEF

-008: B5 LEF

-009: DLT SEF

-010: LG SEF

-011: LT SEF

-012: LT LEF

-013: HLT SEF

-014: HLT LEF

-015: Other

[0]: High

[1]: Low

[2]: Off (Default)

 Stacker2 Air Assist Vol Adj

SP6-611-001: A3 SEF

-002: B4 SEF

-003: A4 SEF

-004: A4 LEF

-005: A5 SEF

-006: A5 LEF

-007: B5 SEF

-008: B5 LEF

-009: DLT SEF

-010: LG SEF

-011: LT SEF

-012: LT LEF

-013: HLT SEF

-014: HLT LEF

-015: Other

[0]: High

[1]: Low

[2]: Off (Default)

 Stacker1 Air Assist Setting SP6-615-001

[0]: Auto (Default) 

[1]: ON

[2]: OFF

 Stacker2 Air Assist Setting SP6-616-001