MFC-J6520DW - ink runs out FAST

[RAX]

LC123 claims 600 @a4. I got 11 @a3 !
Full coverage lots of black (monochromatic images/photo) however on non official compatible inks got far far more pages.
Is there a work around ?
Printer seems to just say no more printing till replaced.
Are they really empty ?

 

[sabretooth02]

Well 600 pages is based on a 5% coverage rate. You are using a 100% coverage rate on more paper.

Coverage percentage (%) : Divide by to get approximate number of pages
5 1
10 2
20 4
30 6
50 10
100 20

The most you would get is about 30 pages so depending on the usage its about right.

600/20 = 30 pages or so.

 

[RAX]

Wow ! Thanks for doin the math for me (wasn't aware of that 5% thing). Strange tho that I got far more out of merely 'compatible' inks.

Switched because during tests some postcard sized images I made and stored in envelopes appeared to fade/spread/degrade whilst images left pinned to wall remained good.

So decided probably quality of ink (tho I wasn't keeping close eye on brands of ink I was using at the time).

Well anyway thanks so much for yr time.

 

[RAX]

Yeah I guess 30 pages was what I was getting with other inks.