Ricoh Priport JP750 Operating Instructions Manual page 68

Remarks
• When the machine is used in low temperature conditions, the image density
might decrease. In this case, select the slower printing speed.
• Press the { { { { Proof} } } } key to perform a test print as the first few prints might be
light.
• The outer portion of the image might not be printed under low temperature.
In this case, either select the slower printing speed, or increase the room tem-
perature.
• The paper exit pawl might come in contact with the printing paper and cause
black lines on the prints. In this case, increase the printing speed or make a
new master with a lighter image density.
• If you cannot pull out the drum, close the front cover again to rotate the drum.
Pull out the drum after it stopped at the position.
• The leading edge of the prints might become stained if the edge touches the
image of prints on the paper delivery tray.
• The ink of the print on the paper delivery tray might stick to the back side of
the next print.
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• When the machine is on and the power source is less than 90% of the specified
amount, printing quality will decrease. Therefore, make sure the supply from
your electrical outlet is at least 90% of the required amount.
• As various kinds and qualities of paper exist, some paper might be wrapped
around the drum or cause misfeeds.
• If your hands are stained with ink:
• Avoid prolonged or repeated contact with skin.
• Cleanse skin thoroughly after contact, before breaks and meals, and at the
end of the work period.
• Ink is readily removed from skin with waterless hand cleaners followed by
washing with soap and water.
• Also, be careful not to get any ink on your clothing while emptying the master
eject box or while loading a new ink cartridge.
• The image density varies according to the printing speed and the room tem-
perature. To achieve the desired image density, adjust the printing speed or
increase the room temperature.
• When you make a lot of prints from a small image, ink might ooze out from
the edges of the master, especially under high temperature and when print-
ing in two or more colours. In this case, make a new master.
• Use ink made within one year. Ink stored for a long period of time tends to
dry up gradually and result in lower image density.
• While making a master, do not leave the document feeder cover open.
• When you use originals with light lettering, edges of the letters might be
printed clearly and the inside of the letters might be light. In this case, in-
crease the image density.
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