Fuji Xerox DocuPrint CM305 df, Service Manual

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Chapter 2 Troubleshooting
Paper Characteristics
The following paper characteristics affect print quality and reliability. It recommends that you follow
these guidelines when evaluating new paper stock.
Weight
The tray automatically feeds paper weights from 60 g/m
2
to 216 g/m
2
(16 lb to 80 lb bond) grain long.
The single sheet feeder automatically feeds paper weights from 60 g/m
2
to 216 g/m
2
(16 lb to 80 lb
bond) grain long. Paper lighter than 60 g/m
2
(16 lb) may not feed properly, and could cause paper jams.
For best performance, use 75 g/m
2
(20 lb bond) grain long paper.
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, 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
2
to 135 g/m
2
(16 lb to
36 lb bond) paper, grain long fibers are recommended. For paper heavier than 135 g/m
2
(36 lb bond),
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
2
(20 lb) xerographic paper. Business
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.
Unusable Paper
The following paper types are not recommended for use with the printer.
1) 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
2) Preprinted papers with chemicals that may contaminate the printer
3) Preprinted papers that can be affected by the temperature in the printer fusing unit