OKI B6500 Mode D'Emploi

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B6500 User’s Guide> 41
If acid paper is used, the characters might appear fuzzy. 
Replace it with alkaline paper. 
Envelopes that are not flat or have metal fasteners
Labels that do not fully cover the adhesive backing
Storing and Handling Paper
Even for suitable papers, poor storage conditions may lead to a 
change in the paper quality, paper jams, poor print quality and 
machine breakdown. Take note of the following points when storing 
paper:
Store paper in the following locations: Temperature of 10 - 
30 ° C with a relative humidity of 30 - 65%
After opening a ream of paper, use the original cover sheets 
to wrap up the paper not used and store it in a cabinet or a 
location with low humidity. 
Do not let the paper stand but store it in a flat location. 
Ensure that the paper is stored properly without being bent 
or curled. 
Store the paper in a location not exposed to direct sunlight. 
Loading Paper
Loading Paper in a Paper Tray
Refer to:
Paper type and size that can be loaded in paper tray: “ Usable Paper” 
(P. 37)
1.
Place the paper tray on a flat 
surface and remove the lid (if 
installed).