Paper Specification
9-1
9-2
9 Paper Specification
9.3
Environmental Considerations
9.1
Basic Theory of Operation
Laser printers use the electrophotograhic technology. The laser beam writes an
temperature and humidity ranges:
electrostatic image onto a rotating photosensitive drum (Photoconductor). As
S
Do not expose the paper to humidity or temperature extrems. If paper is
this image passes the developer station, a dry, powdery toner is attracted to the
left unwrapped or on the paper input shelf of the stacker, extreme
image areas. The developed image then advances to the transfer station where
changes in the environment will cause the paper to take on unwanted
the drum contacts the fanfold paper and the toner image is electrostatically
properties.
transferred onto the paper. After transfer, the paper passes through the fuser
S
In the case of humidity extremes, keep paper tightly wrapped in plastic.
where heat and pressure are applied and the toner fuses (melts) onto the paper.
S
If a significant temperature difference occurs between the paper storage
The fanfold paper is then deposited to the paper exit.
area and the printer´s operating environment, before unwrapping the
To create the printed image, all print media must be transported through the
environment. The greater the temperature difference and the greater the
printer, charged electrostatically, and heated. This is why paper properties such
amount of paper to acclimate, the longer this time period should be.
as electrical resistivity, caliper, finish, and stiffness can affect the print quality
Allow one day for every 10
E
C (18
E
F) difference in temperature between
and paper handling perfomance of the laser printer.
storage environment and printing environment.
9.2
Storing Media
9.4
Guidelines and Specifications for Selected Fanfold Paper
Follow these guidelines when stacking and storing fanfold paper:
Properties of fanfold paper are subject to change. It is the user´s responsibility
S
Do not store cartons with fanfold paper directly on the floor. Place
to monitor the quality of the paper.
cartons on a pallet or on shelves.
The printer is designed to print onto standard electrophotographie (laser type)
S
The carton itself must have a relative humidity of 33 up to 47 % at a
paper. Because there are many types of media and variations can occur in the
temperature of 19° to 23° C (68° to 73° F). Otherwise the humidity
process of manufacturing media, it is important to select the best media for the
penetrates from the carton into the fanfold paper.
printing application.
S
Do not store the fanfold paper near heating elements, water pipes, open
windows, clammy walls, or in direct sunlight.
S
The fanfold paper in the carton and plastic wrap should be stored at a
room temperature of 18° to 24° C (65° to 75° F) and of a relative humidity
of 40 to 60 %.
The printer is designed to operate in a wide range of environmental
conditions. For best performance, store and use fanfold paper at 19
E
to
23
E
C (68
E
to 73
E
F) and a relative humidity of 33 to 47 percent.
Follow these guidelines when media is used in an environment outside the
paper, allow it time to adjust to the temperature in the printer´s operating