Dell 1125 Multifunctional Laser Printer - Manual (Page 17)

Curl
Curl is the tendency of print media to curve at its edges. Excessive curl can cause paper feeding problems. Curl usually occurs after the paper passes through
the printer, where it is exposed to high temperatures. Storing paper unwrapped in humid conditions, even in the paper tray, can contribute to paper curling
prior to printing and can cause feeding problems.
Smoothness
The degree of smoothness of paper directly affects print quality. If the paper is too rough, the toner does not fuse to the paper properly, resulting in poor print
quality. If the paper is too smooth, it can cause paper feeding problems. Smoothness between 100 and 300 Sheffield points is recommended; however,
smoothness between 150 and 250 Sheffield points produces the best print quality.
Moisture Content
The amount of moisture in the paper affects both print quality and the ability of the printer to feed the paper properly. Leave the paper in its original wrapper
until you are ready to use it. This limits the exposure of the paper to moisture changes that can degrade its performance.
Grain Direction
Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either long grain, running the length of the paper, or short grain, running the
width of the paper.
For 60 to 90 g/m2 (16 to 24 lb bond) paper, grain long fibers are recommended. For papers heavier than 90 g/m2 (24 lb bond), grain short is preferred. For the
bypass tray, 60 to 90 g/m2 (16 to 24 lb bond) paper, grain long fibers are recommended.
Fiber Content
Most high-quality xerographic paper is made from 100% chemically pulped wood. This content provides the paper with a high degree of stability resulting in
fewer paper feeding problems and better print quality. Paper containing fibers such as cotton possess characteristics that can result in degraded paper
handling.
Recommended Paper
To ensure the best print quality and feed reliability, use 75 g/m2 (20 lb) xerographic paper. Business papers designed for general business use may also
provide acceptable print quality.
Always print several samples before buying large quantities of any type of print media. When choosing any print media, consider the weight, fiber content, and
color.
Use only paper able to withstand these temperatures without discoloring, bleeding, or releasing hazardous emissions. Check with the paper manufacturer or
vendor to determine whether the paper you have chosen is acceptable for laser printers.
Unacceptable Paper
The following papers are not recommended for use with the printer:
l Chemically treated papers used to make copies without carbon paper, also known as carbonless papers, carbonless copy paper (CCP), or no
carbon required (NCR) paper
l Preprinted papers with chemicals that may contaminate the printer
l Preprinted papers that can be affected by the temperature in the printer fuser
l Preprinted papers that require a registration (the precise print location on the page) greater than 0.09 in., such as optical character recognition
(OCR) forms
l Coated papers (erasable bond), synthetic papers, thermal papers
l Rough-edged, rough or heavily textured surface papers or curled papers
l Recycled papers containing more than 25% post-consumer waste that do not meet DIN 19 309
l Recycled paper having a weight less than 60 g/m2 (16 lb)
l Multiple-part forms or documents
Selecting Paper
Proper paper loading helps prevent jams and ensures trouble-free printing.
To help avoid jams or poor print quality: