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PROBLEM: TONER LEAKING OR DARK SPOTS ON PRINTED IMAGE

1. IMPROPER RE-ASSEMBLY OF CARTRIDGE - CHECK TO MAKE SURE CARTRIDGE IS REASSEMBLED CORRECTLY - CHECK TO MAKE SURE TONER PLUG IS SEALED
2. EXCESS TONER LEFT ON CARTRIDGE OR MACHINE - CLEAN OUT EXCESS TONER AROUND CARTRIDGE OR PRINTER WITH COMPRESSED AIR OR SHOP VAC
3. EXCESS TONER BUILDUP IN IMAGING DRUM - USE COMPRESSED AIR OR SHOP VAC TO REMOVE EXCESS TONER IN THE IMAGING DRUM - DO NOT EXPOSE DRUM TO DIRECT LIGHT SOURCES!  THIS PROBLEM IS COMMON IN PRINTERS WHERE TONER CARTRIDGES ARE PLACED ONTO DRUM UNITS.  (DELL 5100/DELL 5110/OKIDATA/ETC.)
4. CARTRIDGE FAILURE - DOCTOR BLADE OR DEVELOPER ROLLER MAY BE FAILING- NEED TO REPLACE CARTRIDGE. MAY HAPPEN AFTER A FEW REFILLS.  CARTRIDGE WILL EVENTUALLY NEED TO BE REPLACED UNLESS YOU ARE REMANUFACTURING RATHER THAN REFILLING.

PROBLEM: TONER SPECKLES APPEARING ON PRINTS AND THE EDGE OF PAPER.

1. WASTE TONER MAY BE FULL. BE SURE TO EMPTY WASTE TONER IF IT IS ATTACHED TO CARTRIDGE.
2. IMPROPER RE-ASSEMBLY OF CARTRIDGE - CHECK TO MAKE SURE CARTRIDGE IS
   REASSEMBLED CORRECTLY - CHECK TO MAKE SURE TONER PLUG IS SEALED
3. EXCESS TONER LEFT ON CARTRIDGE OR MACHINE - CLEAN OUT EXCESS TONER
   AROUND CARTRIDGE OR PRINTER WITH COMPRESSED AIR OR SHOP VAC

PROBLEM: AFTER REFILLING TONER COLOR IS NOT EXACT TO OEM

1. ALL 4 COLORS WERE NOT REPLACED - AFTERMARKET TONER BY LAW, NEEDS TO BE A DIFFERENT CHEMICAL COMPOSITION FROM OEM.  HOWEVER, OUTPUT COLOR CAN MATCH.  REPLACE ALL 4 COLORS ON YOUR FIRST REFILL IF YOU OR YOUR BUSINESS IS COLOR CRITICAL. (GRAPHIC DESIGNERS/PRINT SHOPS)
2. WASTE TONER CONTAMINATING NEW TONER - IF YOUR WASTE TONER IS GETTING FULL IT MAY SPILL INTO YOUR NEW TONER
3. YOU MAY BE USING TONER THAT IS NOT DESIGNED FOR YOUR MACHINE - TONER IS NOT CREATED EQUAL - BE SURE TO USE REFILLS THAT ARE MADE FOR YOUR MACHINE

PROBLEM: TONER IS NOT FUSING TO THE PAPER WELL

1. YOUR FUSER MAY BE FAILING
2. ALL 4 COLORS WERE NOT REPLACED - SOME MODELS NEED TO HAVE ALL 4 COLORS REPLACED IN ORDER TO WORK PROPERLY (CHECK ABOVE)
3. INCORRECT TONER BEING USED - BE SURE THE TONER MODEL IS CORRECT!

PROBLEM: LIGHT PRINTS

1. CORONA OR LASER SOURCE MAY BE DIRTY - BE SURE TO CLEAN OFF EXCESS TONER
2. DRUM MAY BE FAILING - CAN HAPPEN AROUND 15,000-20,000 PRINTS OR IF YOU PRINT HIGH VOLUMES ON HEAVY MEDIA OR STICKERS
3. INCORRECT TONER BEING USED