Yellow run out how can i still use printer?

Unfortunatley most printers will not allow you to print if one of the colours are missing or empty.and so you will need the yellow toner to be replaced before you can print. there is a way that sometimes works and that is to remove the toner cartrige and give it a good shake this evenly distributes the toner inside and sometimes make the printer think it has enough toner and allows you to print. As I said this only works sometimes and is not a perfect solution

The toner cartridges for the CL7000 have microchips embedded in them, so the machine knows if it's not a new cartridge. Was the cartridge you put in brand new? (And was it a genuine Ricoh cartridge?)

On those printers, the toner is pumped into a developer system and mixed with the developer before making the image. In the developer unit, the density is checked, so if it's not seeing the right mix there, one of three common problems could be causing this.

The more likely solution is to replace the yellow developer unit, which comes as a whole unit and just slides right in. That will reset your density levels and should correct the "load toner" error.

There is a spring and cushion mechanism that the toner cartridge sits on -- this mechanism can easily be popped out of place and cause problems loading the toner. Take out the yellow toner as well as one of the other colors, and see if the little black circular piece is sitting the same way for both colors. If not, just pop it back into place, using the second color as a guide.

The other likely possibility is that the yellow toner supply tube is clogged, but that doesn't happen very often. To test if it's clogged, take out the yellow toner cartridge and the yellow developer unit and turn the copier off. Use a vacuum to provide suction at one end of the tube (the toner end will be easier) and put your finger on the other end (the developer end) and see if you feel the vacuum's suction. If not, there is probably a clog somewhere in the line.

If there is no clog and you can feel the suction, you may have a bad toner supply motor.

As a side note, if you find the problem and fix it, you might still have to put a new yellow toner cartridge in to get the machine running because it will think the cartridge you already tried is empty.

Hope that helps!

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Pls put empty Colour toner

Replace Y toner cartridge (use oki ones or risk it not working for you, but I have warned you now) it was low (sensor clicking) now it is empty(stop operations)

Chances are that you will then need the other colours too, they all go about same time, but depends on what colours you print, normally black goes first then 3 colours, lights and software should indicate but once it is empty totally all will stop...

You can check visually by removing suspect drum and toner, putting on desk, remove toner cart. from top of drum, inside drum running the width of top surface is a 2 x 15cm wide slot, it needs to have the toner to the brim of this slot (foam edged), there also needs to be toner left in the toner unit itself thats sits on top of this slot.

Cheers

Open Drum cartridge , there are four dr. blades for 4 color , clean it...

Replace the Red colour toner Cartridge with a new one.
Replace the Yellow colour toner Cartridge with a new one.

Most likely a toner spill down the back side of the carousel. Remove all the toner and dev unit and vac out any spillage from within the printer. DO NOT VAC THE DEV OR TONER UNITS.

Replace all the units and print about 200 full colour pictures (preferably a test chart - Gretag McBeth or similar) at full size (A4). See if the colour then begins to return to normal. If not, you will probably have to replace the dev units too.

The printer software should have an option for head cleaning & alignment. Make sure to run these maintenance options and see the results. You may need to re-run the tests.

Sometimes generic inks can cause a problem, so after cleaning, try to use an oem cartridge (same company as your printer) and observe the results.

1 Could be toner on the contacts (inside the printer) that mate with the contacts on the cartrdige.

2 Are you sure they are 510 toners and not 500 ones ?? 510 toners have a chip that identifies the cartridge (Colour, Capacity) and maintains a count of the pages printed.
500 toners have a reset fuse that resets the toner counter in the printer, and a resitor that identifies the capacity

3 Are they new cartridges, remanufactured, or 'home refiled'.
if either of the later two, were the chips replaced ? - if not the cartridge still thinks it has printed its full life of pages.