We carry most brands of copier and printer toners, OEM or generic. We can protect just about any electronic equipment you may have. From modems to cable TV to T1 lines. I have used one for the last 7 years and don't turn off my computer no matter the weather, and have not suffered any damage. All cartridges have drums, seals, blades and any worn parts replaced.
Prices are with exchange of old cartridge.
Try a known good cartridge hopefully a new one, make sure you have the correct print driver installed and make sure all the cable connections are tight. If your still having problems call or e-mail us we might be able to solve it with out a charge. Check all cable connections make sure they're tight and in the right connectors. Do every thing above except instead of changing cartridges make sure your ribbon is in good shape, properly installed and the daisy wheel is aligned and secure in it's mount. Same thing as with printers, also make sure your outlet is on a 20 amp circuit most copiers will draw a full 15 to 20 amps.