well its not safe but i think you are using refilled one catridges .you are not using the original one which is of company.you are using compatible catridges in that ink will flow slowly .but its not harmfull but you must clean your printing head using tools which comes under printer properties .if you do it every month you printer will work finer.
Answered by
quadeer
, an ibibo Specialist,
at
11:55 AM on February 13, 2009