How To Fix The Missing Color in the canon Advance C5030 C5045 C5051 C5235 C5240 C5250

[@bra_kojo_polley8908]

Please how do I fix print strips in image

[@mesinfotocopyjambi]

Sir, may I ask for your help? How to make the results more concentrated and sharper in service mode TEST PG number 27. Thanks You. Canon C 5535. I'm a Canon technician from Indonesia.