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Fine horizontal lines near one roller?
- Thread starter Bogie
- Start date
iSign
New Member
your printer has rollers that touch the media after the ink goes down?
mine only feed the media to where the printing happens and could never be "picking up ink" ...but one time after cleaning the heads, I bumped into a roller with the solvent swap & left a little residue that resulted in a little discoloration from contaminating the media a tiny bit for a few inches.
mine only feed the media to where the printing happens and could never be "picking up ink" ...but one time after cleaning the heads, I bumped into a roller with the solvent swap & left a little residue that resulted in a little discoloration from contaminating the media a tiny bit for a few inches.
Bogie
New Member
Okay... If anyone searches for this and finds this in the future.
They call them rollers because they ROLL when you've got them lifted. Just take Mr. Q-tip, and swab at them, and they'll turn freely. It's _amazing_ how much gunk you'll get of the "clean" ones, and the dirty ones are truly funky...
They call them rollers because they ROLL when you've got them lifted. Just take Mr. Q-tip, and swab at them, and they'll turn freely. It's _amazing_ how much gunk you'll get of the "clean" ones, and the dirty ones are truly funky...
Bogie
New Member
Okay - degunked the bejeezwhozis out of 'em, and the q-tips are coming clean, so something else is going...
Yup. Didn't solve the problem...
Actually, the lines look sorta multi-colored... but each line is also straight... Could this be some sorta headstrike? Picture enclosed, and I included an old quarter for scale...
Yup. Didn't solve the problem...
Actually, the lines look sorta multi-colored... but each line is also straight... Could this be some sorta headstrike? Picture enclosed, and I included an old quarter for scale...
Attachments
GK
New Member
look underneath on the head carriage, we get lines like this when some lint like fuzz has built up on the heads. Sometimes it has more then one color because more then one head has some fibers on them. Have you run any banner recently? The scrim fibers have been notorious for causing this. Take a look underneath.
iSign
New Member
well... your signature says you are the head janitor
...yeah, regarding your other comment, I think George may have overlooked that perpendicular orientation... I think the fuzz factor creates marks parallel to head travel.
Have you trouble shot this issue with various media?
Is that photo a banner print, or vinyl, or?
I've seen banners with bad spots in the weave that pick up the ink differently, so I'd be curious if the lines correspond to the weave if it's a banner.
As far as the uniformity of the lines, do they match your roller placement? I know you thought the roller could be to blame... even though cleaning didn't help, do they line up?
Even the slightest expansion of a media, from humidity etc, could result in very slight puckering of the media between rollers, & this could result in a very very slight head strike, recurring in every pass, over each puckering spot. I'm thinking this is a long shot guess, because I don't know how many stripes you are getting... but just trying to keep the ideas flowing.
Jackpine
New Member
Clean around the edge of the print head with a foam swab and cleaning solvent or 91% denatured alcohol. Just clean around the heads not the print head itself. I believe this is a Mutoh Jr....so set the vacuum on the front control panel to high. It looks like what iSign stated...very small head strikes. The Mutoh's rollers are under the media. It is not roller marks.