To add a little to Paul's answer, there are (at least) two kinds of microbanding. With QTR on non-Pro printers (R3000 and older), there is microbanding in the first and last ink of the print. These are faint and slightly irregular thin lines that are parallel to the direction of the print head travel, and taper off at around the inch mark. These are a limitation of the printer firmware. This can't be fixed, but there are workarounds. Search the forum for plenty of discussion of this.
If you get regular faint lines in this direct across the whole print, then the cause is something else. Could be an imperfect nozzle check or misfiring nozzles, or a print head alignment issue if you're printing bidirectional rather than uni. This is a printer issue and in theory, should be fixable.
"Diagonal" lines is a new one on me. Would need more details and scan.
---In QuadtoneRIP@yahoogroups.com, <roark.paul@...> wrote :
On Mon, Sep 21, 2015 at 11:24 AM, jp432r@... [QuadtoneRIP] <QuadtoneRIP@yahoogroups.com> wrote:I really need someone to answer this question. PLEASE?
"This has probably been asked and answered, because the term is used frequently and everyone seems to know what it means, but I cannot find a definition anywhere.
It sounds like it might be the problem I'm having, but without a definition that's just a guess.
BTW my problem is very narrow moderately faint diagonal lines in any smooth tone such as a clear sky. I've fiddled a bit, but so far have not been able to effect the result."