144
Troubleshooting 
 
Curled or wavy
 Check the paper type and quality. High temperatures and high humidity will 
cause paper to curl.
uu Acceptable paper and other print media uu page 2 
uu Product Safety Guide: Choose a safe location for your product
 If you do not use the machine often, the paper may have been in the paper 
tray too long. Turn over the stack of paper in the paper tray. Also, fan the 
paper stack and then rotate the paper 180° in the paper tray.
 Open the back cover (face-up output tray) to let the printed paper exit onto 
the face-up output tray.
 Choose Reduce Paper Curl mode in the printer driver when you do not use 
our recommended paper.
uu Other Print Options uu page 36 (For Windows
®
)
uu Print Settings uu page 59 (For Macintosh)
 
Wrinkles or creases
 Make sure that paper is loaded correctly.
uu Printing on plain paper, thin paper or recycled paper from Tray 1 and 
Tray 2 uu page 9
 Check the paper type and quality.
uu Acceptable paper and other print media uu page 2
 Turn over the stack of paper in the tray or rotate the paper 180° in the input 
tray.
 
Envelope Creases
 Make sure that envelopes are printed with the back cover (face-up output 
tray) opened.
uu Printing on thick paper, labels and envelopes from the MP tray 
uu page 15
 Check the envelope type and quality.
uu Acceptable paper and other print media uu page 2
 Make sure envelopes are fed only from the MP tray.
uu Loading paper in the multi-purpose tray (MP tray) uu page 12
 
Poor fixing
 Choose Improve Toner Fixing mode in the printer driver.
uu Other Print Options uu page 36 (For Windows
®
)
uu Print Settings uu page 59 (For Macintosh)
If this selection does not provide enough improvement, change the printer 
driver setting in Media Type to a thick setting.
Examples of poor print quality Recommendation
B DEFGH
abc efghijk
ACD
bcde
134
ABCDEFG
EFGHIJKLMN
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.