Dell 2135cn Color Laser Printer - Manual (Page 257)

C5
Load the envelopes short edge feed with the flaps closed and the print side up. Ensure that the flaps come at the bottom when you face towards the printer.
Single Sheet Feeder
Capacity
The single sheet feeder can hold:
l 1 sheet of the standard paper.
Print Media Dimensions
The maximum dimensions of print media that the single sheet feeder can handle are:
l Width - 76.2 mm (3.00 inches) to 215.9 mm (8.5 inches)
l Length - 127 mm (5.00 inches) to 355.6 mm (14.00 inches)
Loading the Single Sheet Feeder
1. Adjust the width guides to the print media's width.
2. Hold both sides of the print media facing down close to the single sheet feeder, and push it into the printer until it automatically feeds.
Loading an Envelope
Envelope#10 , Monarch, or DL
To load an envelope into the single sheet feeder, insert the envelope short edge feed with the flap closed and the print side down. Ensure that the flap comes
NOTE: Do not force the print media into the single sheet feeder.
NOTE: Load letterhead face-down, with the top of the sheet entering the printer first.
NOTE: If you experience problems with paper feed, turn the paper around.