Question about printing in AutoCAD 2015

[Anonymous]

Hello,
I have two plotters HP DesignJet T610 and T830 and with T830 there is a little problem. It is printing stepped lines when they are angled. So my question is it any possibly problem with settings in AutoCAD to print in that way or is it definetly problem with HP drivers? Below pictures show the problem.
Two prints on both plotters are the same:
I tried printing:
- both plotters printing on speed 
- with transparency on/off
- with non style 
- to PDF and print it 
- changing in autocad print options  quality to higher DPI 
- switching papers 

In my opinion that is the drivers problem and asking here I want to exclude program troubles.

[Valentin-WSP · Accepted solution]

@Anonymous ,

This seems to be a HP troubleshooting issue.

• HP Designjet T610 Printer Series - Print quality troubleshooting
• HP DesignJet T830 Multifunction (pg. 136)

[Anonymous]

Thanks, that is a partial solution because changing the print quality to a higher improves lines, but over a longer printing time. And I wanted to get the same results on both plotters at the same quality (speed option). Anyway, you share my opinion about problem that is with plotter, so I am going to contact HP support then.

Maybe meanwhile someone will add any interesting informations.

[pendean]

HP user support forums are over here for more ideas and things to try https://h30434.www3.hp.com/

[Anonymous · Accepted solution]

To further searchers of the problem.
I have solved the problem, the fault was with the drivers.
I asked HP support for older drivers. I got a bunch of different ones and chose one that worked perfectly.

The ones marked V4 was making stepped lines on my plotter. 
I used others with a known problem, max 10 custom additional paper size, but they work perfectly.
drivers name "win-x64-hpgl2-drv_T-seriesMFP" and file name "hpi5E59x" from 2018