Oki MPS420b User Manual

Also see for MPS420b: Maintenance manual Material safety data sheet

Contents

Oki MPS420b User Manual Manual pdf 47 page image

Consumables and Maintenance > 47Consumables and MaintenanceThis section deals with the replacement of the toner cartridge and image drum andgeneral maintenance.T ONER CARTRIDGE LIFEHow long your toner cartridge lasts depends on the print density; the percentage of thepage that prints black. A typical letter has 3% to 5% print density; graphics usuallyhave higher density. Higher print density means toner is used up faster. At 5% printdensity, a standard toner cartridge will print an average of 3500 pages. Remember, thisis only an average:actual results may vary.The first toner cartridge installed in a new printer has to fill the image drum reservoirand saturate the developing roller with toner. The toner cartridge that is supplied withthis printer normally produces about 1,500 pages after installation.WHEN TO REPLACE THE TONER CARTRIDGEWhen the toner is running low, TONER LOW is displayed in the operator panel LCD. AfterToner Low displays, the printer will print about 100 more pages then display TonerEmpty and stop printing. Printing will resume after a new toner cartridge has beeninstalled.R EPLACING THE TONER CARTRIDGEIt is recommended that you clean the LED array at the same time as you change thetoner cartridge.The toner used in this printer is a very fine dry powder contained in the toner cartridge.Have a sheet of paper handy so that you have somewhere to place the used cartridgewhile you install the new one.Dispose of the old cartridge responsibly, inside the pack that the new one came in.Follow any regulations, recommendations, etc., which may be in force concerning wasterecycling.If you do spill any toner powder, lightly brush it off. If this is not enough, use a cool,damp cloth to remove any residue. Do not use hot water, and never use solvents of anykind. They will make stains permanent.WARNING• Never expose a toner cartridge to an open flame. It can causean explosion and you can be burned.• Be sure to switch off and unplug the machine beforeaccessing the interior of the machine for cleaning,maintenance or fault clearance. Access to a live machine’sinterior can cause electric shock.WARNING!If you inhale any toner or get it in your eyes, drink a little wateror bathe your eyes liberally in cold water. Seek medical attentionimmediately.