How to empty sealed Kyocera waste toner container box - Error C7990. - YouTube
HOW TO CLEAN WASTE TONER KYOCERAM2040DN | KYOCERASUPPORT | 100% - YouTube
CET Group Singapore - CET8997 – CET DK1150 compatible or equivalent Drum Unit – with Waste Toner plug for use in Kyocera ECOSYS P2235dn/2235dw, ECOSYS P2040dn/2040dw, ECOSYS M2135dn/2635dn, ECOSYS M2635dw/2735dw, ECOSYS M2040dn/2540dn,