Paper Curl

Paper curl is a very significant factor in printer performance. It can affect the printer in the following ways:

Paper jam, paper skew and ability to be picked up

nPaper stacking uniformly in the output stacker

Paper wrinkles through the heat roller (fuser).

Nearly all paper has curl or a tendency to curl. Curl can occur after the paper passes through the printer’s fuser where it is exposed to high temperatures. In most paper, curl results from unusually large, sudden, or uneven changes in the moisture content.

Acceptable Paper Curl

Less than 10 mm

How to Avoid Paper Curl

Use high-quality xerographic paper.

Store the paper in a moderate environment (40% to 60% relative humidity).

Minimize humidity changes throughout the day in the printer room.

Minimize the humidity difference between the paper storage area and the printer room. If the humidity difference is considerable, move the paper into the printer room a few days before to allow the paper to adjust to the printer room

nenvironment.

Wrap the unused paper properly in moisture-resistant wrappers to protect the paper from moisture absorption or loss.

C-6 Paper Specifications

Page 130
Image 130
Ricoh DDP 70e, DDP 92 manual How to Avoid Paper Curl