Lexmark X925 7541-03 series, Service Manual

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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 it is time to use it. This limits the exposure of the paper to
moisture changes that can degrade its performance.
Condition paper while it is still in the original wrapper. To condition it, store it in the same environment as the
printer for 24 to 48 hours before printing to let the paper stabilize in the new conditions. Extend the time several
days if the storage or transportation environment is very different from the printer environment. Thick paper may
also require a longer conditioning period because of the mass of material.
Grain direction
Grain refers to the alignment of the paper fibers in a sheet of paper. Grain is either grain long , running the length
of the paper, or grain short , running the width of the paper.
For 60 to 135 g/m
2
(16- to 36-lb bond) paper, grain long fibers are recommended. For heavier papers, grain
short is 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 possesses characteristics that can result in degraded paper handling.
Unacceptable paper
The following papers are not recommended for use with the printer:
•
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
•
Preprinted papers with chemicals that may contaminate the printer
•
Preprinted papers that can be affected by the temperature in the printer fuser
•
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. In some cases, registration can be adjusted with the
software application to successfully print on these forms.
•
Coated papers (erasable bond), synthetic papers, or thermal papers
•
Rough-edged, rough or heavily textured surface papers or curled papers
•
Recycled papers that fail EN12281:2002 (European)
•
Paper having a weight less than 60 g/m
2
(16 lb)
•
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:
•
Always use new, undamaged paper.
•
Before loading paper, know the recommended print side of the paper. This information is usually indicated
on the paper package.
•
Do not use paper that has been cut or trimmed by hand.
•
Do not mix media sizes, weights, or types in the same source; mixing results in jams.
•
Do not use coated papers unless they are specifically designed for electrophotographic printing.