Minolta 4695 claiming the yellow toner is empty, but it's full??

SOURCE: toner problems

A couple of suggestions. 1. make sure there is not any plastic shipping tabs that need to be removed from the cartridge. 2. try reseating the cartridge. 3. Try replacing that cyan cartridge. It may be defective. Also make sure you use Minolta brand toners!

SOURCE: Yellow toner empty

You will need to use the menu on the printer itself to change a setting Press "Menu Select" button to get the menu function Use the right arrow twice to select "Engine", then press the down arrow to the "Replace Toner" menu Press the right arrow for the "Toner Empty" menu Press the down arrow to get the Toner Empty settings Press the right arrow to change the Toner Empty setting to "Continue" Press the "Menu Select" button to confirm the setting. You should be able to print, you just won't have any yellow toner. When you get your toner cartridge, follow these instructions to reset the 'Toner Empty' setting to Stop so you will know when a toner is out.

SOURCE: Toner Empty Message won't go off

check that the toner is inserted correctly, reboot print.

SOURCE: Minolta 2300DL Magicolor printer

EAch cartridge has a small ( about 1/4 inch square) stainless steel color metal tab at the end of the cartridge opposite the refill cap end. The surface of this little tab is visible when the cartridge is "low" on toner and this causes the machine to give the message to change the cartridge. As the cartridge gets older I've noticed that this tab moves to the exposed position more readily, which causes the message to appear. If you google how to reset the position of this tab, then the message will not appear. EVerytime I refill the toner of a cartridge I check to make sure to reset the position of this little metal tab.
It is difficult to describe how to reset the position of the tab. You have to stick a small regular screw driver into the slot below where the metal tab appears and find the lever which can be pushed to reset the position of the tab. You can likely find photos of this procedure on google.

SOURCE: Toner Not Installed - After replace black

This is actually a desigbn fault on the magicolor printers. Underneath the toner rack is the 3 pin chip reader - normally white and plastic with 3 metal contacts sticking out.

it is at the bottom of the printer so very often toner drops onto it and the sensors dont work, it also takes a bit of a beating as the cartridges rotate. Its very easy to replace - but you need the part,

Minolta should have put it at the top rather than the bottow where it gets covered in dust.

these guys helped me a lot

http://www.zinetic.co.uk