Panasonic KX-P8420 User Manual

MPT cork pad: shows the number of pages printed through Multi purpose tray since your purchase of the printer.

Total Page: shows the number of pages your KX-P8420 has printed since your purchase of the printer. Same as user

mode menu “Page Count”.

Black toner cartrage: Shows the number of black toner pixels used since last black toner cartridge replacement.

Cyan toner cartrage: Shows the number of cyan toner pixels used since last cyan toner cartridge replacement.

Magenta toner cartrage: Shows the number of Magenta toner pixels used since last Magenta toner cartridge

replacement.

Yellow toner cartrage: Shows the number of yellow toner pixels used since last yellow toner cartridge replacement.

*The values for toner cartridges are shown in K(1000).

The printing area for each paper size is: Letter 4917x6400, A4 4758x6850, Legal 4917x8164 (HxV).

So if the whole printable area is printed, the value shown in above menu will be: 31469K for 1 letter sheet.

(4917x6400/1000) , 32592K for 1 A4 sheet, 40142K for 1 Legal sheet.

Based on these values together with the values shown in service mode/Display counter menu, the values shown on

user mode maintenance menu or Image area menu are calculated.

*How the values shown on “Last” of “Image Area” menu is calculated.

The value = 100 x The number of pixels turned on for the last printed page/the number of total pixels for the default

paper size.(If default paper size is Letter, 4917x6400. Default paper size is Letter for America and A4 for other

regions.)

*How the values shown on “Average” of “Image Area” menu is calculated.

The value = 100 x The number of pixels turned on for the total printed pages with the current toner cartridge/the

number of total pixels for the default paper size multiplied by the number of the printed pages with the current toner

cartridge.

So if 10% image is printed for 100 times after the toner replacement, (letter size)

100 x (4917x6400x0.10) x 100/(4917x6400) x 100

*How the values shown on “Toner Cartridge” of “Remaining” menu is calculated.

The value = 100x(1 – the number of pixels turned on for the total printed pages with the current toner cartridge/the

life expectancy of current toner cartridge(3k for starter kit,10k for C,M,Y,12K for K) x the number of total pixels for the

default paper size x 0.05)

So if 10% image is printed for 100 times after the toner replacement, (letter size, k toner)

100 x (1 – (4917x6400x0.10) x 100/12k x (4917x6400) x 0.05)

**The value is calculated assuming that the average coverage of each toner should be around 5%. So the more

actual coverage differ from 5%, the more remaining value become incorrect.

*How the values shown for other consumables on “Remaining” menu is calculated.

For other consumables, the values are calculated with the number of sheets instead of the number of pixels and the