OKI C7350DTN User Manual
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C7350/7550 User’s Guide: Maintenance • 481 Maintenance Adding Paper The display indicates when the number of sheets of paper in any paper tray falls below 30. 1.Remove the paper tray. 2.Remove the remaining sheets of paper. 3.Refill the tray with up to a ream (500 sheets) of paper. Replace the sheets removed in step 2. This guarantees that the oldest paper is used first. Doing this helps preventing paper jams. paper tray remove.eps Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 482 4.Check that the paper guides and rear stopper are correct for the size of paper being used. paper guides.eps and rear paper stopper.eps 5.Close the paper tray gently. Important! To prevent jams: • Make sure there is no space between the paper and the paper guides and rear stopper. • Don’t overfill the paper tray. Capacity depends on the type of paper and the paper weight (max 530 sheets of 80gm²). • Don’t load damaged paper. • Don’t mix paper of different sizes, paper quality or thickness. • Don’t remove the paper tray during printing. Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 483 6.If installed, a lower paper tray cannot be used to print if there is no paper tray inserted above it. multi-trays.eps (1) (2) 9 (1) (2) 9 (1) (2) 8 Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 484 Changing the Toner Cartridge When the toner is running low, ***** TONER LOW is displayed in the control panel (*** is the color name). If printing continues without replacing the toner cartridge, CHANGE ***** TONER is displayed and printing is cancelled. Depending on the operating environment, print may become faint before this message is displayed. At this stage, remove the toner cartridge and check whether it is empty. If so, the toner cartridge needs to be replaced. Cartridge life is approximately 10,000 letter-size pages at 5% print density. The first toner cartridge installed in a new image drum needs to be replaced after less than this amount because the toner cartridge has to fill a new image drum. NOTE After installing the new toner cartridge, the message on the display TONER LOW or CHANGE TONER should disappear. However, this sometimes does not disappear until printing has been carried out. If it still does not disappear, reinstall the toner cartridge. WARNING! Take extreme care when handling toner. • Toner can be harmful if inhaled, swallowed or if it gets in the eyes. • Toner can also stain hands and clothing. See the Material Safety Data Sheets in your Warranty, Regulatory and Safety Information booklet for more information. Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 485 1.Turn off the printer. 2.Open the top cover. open top cover.eps Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 486 3.Check the color label of the toner cartridge to be changed. 4.Locate the colored lever (1), on the right side of the toner cartridge. Move it (as shown by the arrow) as far as it will go. 5.Lift the lever end of the cartridge. This disengages the locating peg on the image drum from the toner cartridge. toner cartridge remove.eps 6.Remove the toner cartridge (2). CAUTION! Dispose of the toner cartridge in accordance with local legislation. Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 487 7.Unpack the new toner cartridge and remove the orange shipping clip. toner clip remove.eps 8.Shake the new toner cartridge back and forth several times. Then holding the toner cartridge horizontally, remove the tape. toner shake.eps and toner tape remove.eps Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 488 9.Insert the new toner cartridge into the image drum, left side first, engaging the drum locating peg in the hole in the toner cartridge. toner cartridge install 1.eps Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 489 10.Gently push the toner cartridge down, engaging the locking pin into the groove on the image drum. toner cartridge install 2.eps 11.Gently push the colored lever forward until it stops. This releases the toner into the image drum. toner cartridge install 3.eps Downloaded From ManualsPrinter.com Manuals
C7350/7550 User’s Guide: Maintenance • 490 12.Gently wipe the LED head surface with LED lens cleaner or a soft tissue. LED head clean.eps 13.Close the top cover. close top cover.eps CAUTION Do not use methyl alcohol or other solvents on the LED head. These solvents damage the lens surface. NOTE After installing the new toner cartridge, the message on the display TONER LOW or CHANGE TONER should disappear. However, this sometimes does not disappear until printing has been carried out. If it still does not disappear, reinstall the toner cartridge. Downloaded From ManualsPrinter.com Manuals