HoppaLong Posted December 9, 2012 Share Posted December 9, 2012 I've got a Canon MP450 that I use occasionally with a laptop running a customizedversion of 98SE. If I don't use this MFP for ten days or longer, I print a few testsheets that have fonts in many different colors. It's the only way to keep thecartridges from drying out and becoming useless.The sheets come out completely clean. The problem is the fonts are frequentlyfractured or misaligned. It's not consistent. If you print a few paragraphs, not allthe fonts come out misaligned. A few lines look good, followed by several lineswhere the fonts are slightly slanted or fractured.I've tried the "Auto Head Align" from the maintenance screen on the MP450, andthe "Print Head Alignment" from the Canon software. The results are the same.If you're familiar with the procedure, there are rows of rectangular patterns. You select the pattern where the spaces between the stripes are almost invisible. Themiddle row is "0" going down to -5 and up to +5. I suppose the print head wouldbe considered "perfect" if the patterns selected were all in the middle or "0."Here are the results from the alignment procedure I just performed:A = 0B = 0C = -2D = +1E = -2F = 0G = +1H = +2I = -1J = 0K = +1L = 0The cartridges are factory, not aftermarket. I've repaired and constructed many differentkinds of mechanical and electronic devices, but I don't know much about these MFPs. Itseems like the print head is defective. Maybe there is something I could try that is not inthe Canon pdf manual. Tinkering with the numbers might be worth a try. I thought aboutsetting all the numbers to zero, just to establish a new baseline. Then I could graduallygo positve or negative until the fonts appear normal. Probably a waste of time. Link to comment Share on other sites More sharing options...
puntoMX Posted December 11, 2012 Share Posted December 11, 2012 Hard to tell what is wrong, but I would think it's not the head itself but the belt that drives it. You could try to replace the belt but no idea if you can get it on the market. Link to comment Share on other sites More sharing options...
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