Paper curl

Paper curl is inherent to the laser printing processes, and occurs when paper is subjected to heat. Paper curl tends to relax as the paper cools while resting on a flat surface. The specification for maximum paper curl when the paper is lying flat before print is 5 mm (0.2 inches).

Although paper curl cannot be totally eliminated, some steps can be taken to lessen its impact, as suggested in the following table.

Table 7-5 Paper curl troubleshooting

Possible causes

Recommended action

 

 

Paper path

Try using the front output slot to shorten and straighten the paper path.

 

 

Paper surface

The recommended printing surface of the page is usually marked on

 

the end of a ream of paper by a small arrow and the phrase “print this

 

side first.” If the incorrect side was face up, turn the paper over. Load

 

paper into the Paper Input Tray with the recommended printing surface

 

facing the front of the printer.

 

 

Paper storing and handling

Over time, paper assumes the characteristics of its storage

 

environment. (In a humid environment, paper absorbs moisture. In a

 

dry environment, paper loses moisture.) Paper with higher moisture

 

contents will tend to curl more. Evaluate the storage conditions of the

 

paper.

 

 

Paper type

All paper is manufactured differently (texture, moisture content, drying

 

processes, composition, etc.). Change the type of paper being used

 

and reevaluate the paper if curl results.

 

 

EN

Troubleshooting checks 137