Epson AcuLaser C2900N Service Manual page 21

Chapter 1 Troubleshooting
Weight
The tray automatically feeds paper weights from 60 g/m
The single sheet feeder automatically feeds paper weights from 60 g/m
bond) grain long. Paper lighter than 60 g/m
For best performance, use 75 g/m
Curl
Curl is the tendency of print media to curve at its edges. Excessive curl can cause paper feeding prob-
lems. Curl usually occurs after the paper passes through the printer, where it is exposed to high tem-
peratures. Storing paper unwrapped, even in the paper tray, can contribute to paper curling prior to
printing and cause feeding problems regardless of humidity. When printing on curled paper, straighten
the paper and then insert it into the single sheet feeder.
Smoothness
The degree of paper smoothness directly affects the print quality. If the paper is too rough, the toner
does not fuse on to the paper properly, resulting in poor print quality. If the paper is too smooth, it can
cause paper feeding problems. Smoothness between 150 and 250 Sheffield points produces the best
print quality.
Moisture Content
The amount of moisture in the paper affects both the print quality and the ability of the printer to feed
the paper properly. Leave the paper in its original packaging 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 grain long, running
the length of the paper, or grain short, running the width of the paper. For 60 g/m
36 lb bond) paper, grain long fibers are recommended. For paper heavier than 135 g/m
grain short is preferred.
Fiber Content
Most high-quality xerographic paper is made from 100% chemically pulped wood. Paper containing
fibers such as cotton may lead to degraded paper handling.
Recommended Paper
To ensure the best print quality and feed reliability, use 75 g/m
paper designed for general business use also provides acceptable print quality. Only use paper able to
withstand high temperatures without discoloring, bleeding, or releasing hazardous emissions. The laser
printing process heats paper to high temperatures. Check with the manufacturer or vendor to determine
whether the paper you have chosen is acceptable for laser printers.
It is recommended that you perform trial print before purchasing large quantities of print media. When
choosing any print media, you should consider the weight, fiber content, and color.
Unacceptable Paper
The following paper types are not recommended for use with the printer:
• Chemically treated paper used to make copies without carbon paper, also known as carbonless
paper, carbonless copy paper (CCP), or no carbon required (NCR) paper.
• Preprinted paper with chemicals that may contaminate the printer.
• Preprinted paper that can be affected by the temperature in the fuser unit.
• Preprinted paper that requires a registration (the precise print location on the page) greater than
±0.09 inches, such as optical character recognition (OCR) forms.
Epson AcuLaser C2900N
2
2
(16 lb) may not feed properly, and could cause paper jams.
2
(20 lb bond) grain long paper.
1 - 8
2
to 216 g/m (16 lb to 80 lb bond) grain long.
2
to 216 g/m
2
(20 lb) xerographic paper. Business
Revision B
2
(16 lb to 80 lb
2 2
to 135 g/m (16 lb to
2
(36 lb bond),
Confidential