Oki MB471 Users Manual Basic - Page 174

Replacing Consumable Items  Align both guide posts of the image drum with their guide grooves on the printer, and gently set the image drum into the printer. Guide Post Guide Post Guide Grooves  Remove the toner cover (orange) from the image drum set in the printer by pushing the projection in the direction of the arrow. Protrusion Toner cover Memo  Dispose of the toner cover as non-burnable waste. Note  Some toner may remain on the reverse of the toner cover. Take care as it may stain other parts when removed.  The image drum (the green cylinder) is very delicate. Handle it with extreme care.  Do not expose the image drum to direct sunlight or bright interior light (approximately 1,500 lux or more). When leaving it under normal interior light for 5 minutes or more, cover it with black paper.  Do not leave the image drum for more than 1 hour, even if it is covered with black paper. 3 Install a new toner cartridge. For details, see "Procedure for Replacement" (P. 172). 4 Close the top cover. Replacing the Image Drum (MB441, MB451, MB451w only) Life Duration of Image Drum When the [Image Drum Near Life] message appears on the display screen, prepare a replacement image drum. If you continue printing, the message [Please Replace the Image Drum] will be displayed and printing will stop. A guideline for replacing the image drum is every 25,000 pages or so for A4 sized paper (with single-sided printing). However, this number of pages is for printing with general conditions (3 pages at a time). Printing one page at a time reduces the drum life by about half. The actual number of printed pages may be halved again relative to the above guideline, depending on the printing conditions. Note  The actual number of pages you can print with the image drum depends on how you use it. The above guideline may be reduced by more than half, depending on the conditions of printing. Note  The print quality may deteriorate after the toner cartridge has been unpacked for a year. Replace it with a new one. Procedure for Replacement Note  The image drum (the green tube) is very delicate. Handle it carefully.  Do not expose the image drum to direct sunlight or very bright interior light (approximately more than 1500lux). Even under the normal interior light, do not leave it for more than 5 minutes.  To ensure optimum performance, please use original Oki Data consumables.  Service for problems caused by the use of consumable items other than genuine OKI consumables is not covered under the warranty or in the maintenance contract. (This does not apply to all faults occurring with non-original Oki Data products; however, please bear this in mind when using them.) - 174 -