Canon PIXMA MP950 Service Manual

Also see for PIXMA MP950: Supplementary guide Start here User guide

Contents

Canon PIXMA MP950 Service Manual Manual pdf 14 page image

*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.- timing slit strip film, or- carriage unit.Faulty scanning (no scanning, strange noise) - Confirm the connection between the scanner unit and the logic board.- Replace the- scanner unit, or- logic board ass'y.FAU lamp not lit - Confirm the connection between the scanner unit and the logic board.- Replace the- Document pressure plate unit (FAU), or- logic board ass'y.Unsatisfactory print quality No printing, or no color ejected. - Replace the- ink tank,- print head *1 , or- logic board ass'y.- Remove foreign material from the purge unit caps, if any.- Replace the purge unit.Printing is faint, or white lines appear on printouts even afterprint head cleaning.Line(s) not included in the print data appears on printouts.- Remove and re-install the print head.- Replace the- ink tank,- print head *1 ,- purge unit, or- logic board ass'y.Paper gets smeared. - Feed several sheets of paper.- Perform bottom plate cleaning.- Clean the paper path with cotton swab or cloth.- Clean the ASF sub-rollers.A part of a line is missing on printouts. - Replace the- ink tank, or- print head *1 .Color hue is incorrect. - Replace the- ink tank, or- print head *1 .- Perform print head alignment.Printing is incorrect. Replace the logic board ass'y.No ejection of black ink. - Replace the- ink tank, or- print head *1 .- Remove foreign material from the purge unit caps, if any.- Replace the purge unit.Graphic or text is enlarged on printouts. When enlarged in the carriage movement direction:- Clean grease or oil off the timing slit strip film- Replace the- timing slit strip film,- carriage unit, or- logic board ass'y.When enlarged in the paper feed direction:- Clean grease or oil off the timing slit disk film- Replace the- timing slit disk film,- timing sensor unit, or- logic board ass'y.Faulty scanning No scanning. - Confirm the connection between the scanner unit and the logic board ass'y.- Replace the- scanner unit, or- logic board ass'y.Streaks or smears on the scanned image. - Clean the platen glass and the FAU lamp.- Confirm the connection between the scanner unit and the logic board ass'y.- Replace the- scanner unit,- logic board ass'y, or- sponge sheet1-9