Getting some constant small vertical red lines on the prints

#1 ronnyadonis48595 8 months ago

these lines keep appearing out of no where. Looks like a scrape but it actually gets printed on the files. Changed all heads to brand new, still no luck. seem to be happening only on the center part of printer just after 70cm from right. If i print anything less than that size and shift print to all way right all is well. Anything bigger and exceeds that width and is near center this is coming. Any help much appreciated. Thanks

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#2 cpaveglio53787 4 months ago

Have you cleaned the bottom of the carriage? What printer model exactly? Are the lines in the direction of media travel, or in the direction of the print head movement?

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#3 zunairmajeed 6 days ago

Checking the carriage bottom is definitely a smart step. I have seen similar issues caused by tiny bits of dried ink or debris building up underneath. Also, make sure the platen area is clean and the mdeia is not slightly raised in the center. If the issue continues, it might be a good idea to look into other models from the latest HP printer lineup - they tend to offer better printhead stability and improved calibration features.

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