My gestetner 1802 d has a full bottle of toner but is showing the massage that the toner is empty and should be loaded

SOURCE: Gestetner DCS424 error message: replace used toner bottle

There are 2 waste toner cartridges, be sure to empty these 2 cartridges . If you remove the waste toner in both cartridge it will automatically clear the error message.

SOURCE: Our gestetner 3713 copiers toner tank is full

pull out the drum or pcu unit removing ne thum screw and open the recycling unit 3 screws clean the unit.

SOURCE: can't find the toner waste bottle to empty it for

It is located in the transfer belt assy.
open the right door look for the brown belt assy
lift lever and remove
remove front and rear springs
spread clips and swing belt assyup from case assy and remove
remove three blade screws remove blade and set aside
slowly dump waste toner

reverse procedure to reassemble message should clear (nothing to reset)
Good luck

SOURCE: my gestetner 2712 has ran out of toner. i have

GESTETNER 2712 PROBLEM USUSALLY SIMILAR TO RICOH 2022/1022/27 PROBLEM IN WHICH INLET IN PCU AT LOAD TONER OUPUT. wHAT YOU CAN DO ,TEK OUT THE PCU IN CHECK IF THE PCU TONER INLET IS BLOCK EITHER BY SEAL OR DUE TO INLET CLOSER MALFUNCTION CAN BE REPAIRED IF YOU HAS EXPERIENCE OPENIG UP THE PCU

SOURCE: where is the waste toner bottle for the Gestetner dsc 535

It is located on the lefthand side of the machine under the yellow pcu unit. You will have to remove a cover next to paper tray 1