There are two ways of cleaning the HP 4L's:
This will clean toner off the transfer roller and the fuser areas. Additional cleaning can be completed with canned air and the specialized cleaning towels also available for purchase. Remove toner cartridge and carefully wipe the interior of any toner or paper debris.
DO NOT USE ORDINARY PAPER OR CLOTH TOWELS!
These can leave debris in the printer and contaminate the transfer roller causing very poor quality prints.
Testimonial: "Thanks. I changed the cartridge and the result is much better. Must have been the cartridge I presume"
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