Lexmark 4227 The paper you use in the Auto Sheet Feeder must meet the following specifications.

Chapter 5: Printer Options
86
Printer Options
The paper you use in the Auto Sheet Feeder must meet the
following specifications.
.
Automatic Feed Mode (Single-part Form)
Length 139.7 mm (5.5 in.) minimum
355.6 mm (14.0 in.) maximum1
558.8 mm (22 in.)2
Width 105 mm (4.13 in.) minimum
364 mm (14.3 in.) maximum
1 Paper width greater than 215.9 mm (8.5 in.).
2 For 215.9 mm (8.5 in.) paper width or less.
Manual Insertion Mode (Single-/Multi-part Form)
Length 139.7 mm (5.5 in.) minimum
355.6 mm (14.0 in.) maximum1
558.8 mm (22 in.)2
Width 76.2 mm (3.0 in.) minimum
420 mm (16.5 in.) maximum
Paper Weight 60 ~ 90 g/m2 (16 ~ 24 lbs)
1 Paper width greater than 215. 9 mm (8.5 in.).
2 For 215.9 mm (8.5 in.) paper width or less.