c. Notes on Handling of Cartridge
1) Before installing a new EP-22 cartridge in the printer, hold the cartridge at both sides as
shown below, and gently slop it at about 45° right-up and left-up 5 or 6 times to distribute
toner evenly. Do not rock the cartridge in any other way, as the toner may leak from the
developing or cleaner units.
Figure 1-5-2
Print the test pattern of 3 to 5 sheets to ensure that output images are not spoiled by a toner
leak after installing the cartridge in the printer.
2) If blank spots appear on the output image due to an uneven distribution of toner in the car-
tridge, shake the cartridge to evenly distribute as shown in 1).
3) Do not place the cartridge on its end or upside down.
4) Do not open the protective shutter of the photosensitive drum and never touch the drum sur-
face. Do not clean the photosensitive drum.
5) Do not disassemble EP-22 cartridge.
6) Do not give vibration or shock to the cartridge.
7) As the photosensitive light is easily damaged by intensive light, blank spots or black stripes
may appear on the printed image, if it is exposed to strong light. Faulty print images can be
corrected by stopping the printer momentarily. However, if the drum is exposed too long, the
blank spots and black stripes may remain even after stopping the printer.
To prevent this, be sure to always place the unsealed cartridges in their boxes or under a
cover.
Do not leave them uncovered when removed from the printer.
Reference:
If the cartridge are exposed to ordinary light for five minutes and then left in a dark
area for another five minutes, the print quality will return to a virtually permissible
level. However, do not expose the cartridge to direct sunlight.
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