The Bizhub C351 is a full color copier with a dual component toner.  The average copier and printer speed is 35 pages per minute.  Its first copy time is 6.8 seconds for black and 8.5 seconds for color. The standard paper capacity is 250 sheets from dual drawer (standard paper sources); however, its maximum paper capacity is 3400 sheets from five sources.   This device offers the copy resolution of 600 x 600 dpi and an enhanced printer resolution of 600 x 1800 dpi. The device’s document feeder capacity is 100 sheets.   Its monthly duty cycle is 100,000 impressions. The Konica Minolta Bizhub C351 uses black cartridge number 4053-401 , cyan cartridge number 4053-701 , magenta cartridge number 4053-601 and yellow cartridge number 4053-501 . The average page yield of each cartridge is 11,500 pages for the color and 11,500 pages for the black at a 5% coverage, which is usually a regular letter size page with text. This printer is mostly intended for small to medium printing jobs, users looking for more speed will need to upgrade to faster models. The replacement cycles of the printer are convenient, mostly based on the high yield capacity of the cartridges that reduces the cost per page, and allows users to utilize the color features of the printer without fear of breaking the bank.
Open the front door of the machine, and then turn the locking lever of the used toner cartridge counterclockwise to release the cartridge as shown in Fig. 1. 
Lift the used toner cartridge up and out of the machine toner compartment as shown in Fig.2. 
Shake the new toner cartridge well as shown in Fig.3 until the toner flows freely before installing the toner cartridge.
Peel off the tape securing the protective cap as shown n Fig. 4.
Slide off the protecting foam as shown in Fig. 5. 
Position the new tner cartridge as shown in Fig.6, and then insert it into the machine toner compartment 
Rotate the locking lever clockwise fully to secure the new toner cartridge into its correct position as shown in Fig. 7. Carefully close the front door.