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hi all! I'm just doing a quick survey of what head/scan speeds people use on their machines. The local roland tech guy specifically said that i should not use the usual default 1000mm/sec scan speed - bec this would bad for the head. he mentioned something in the 650mm/sec range as the safe...

@eye4clr i hope you don't mind. i tried to do everything all over again - the right way. but i felt that i needed to clarify some things regarding ink restrictions by chroma. [Measure tool by Profile Maker ] After using LCh color space and selecting "Delta E 2000" in the list box - you...

heehee. i try to get away with as much as i can. thanks again! :P

well, i think i now have the basic understanding i need for a decent profile. and i have you guys to thank. hehe. :) but before i stop bothering you guys could you just give me a brief and basic understanding of what the "custom color mapping" and "global color mappings" are for? also, under...

if i now understand it correctly, the key concept here is gamut range. an icc profile setup has a lower gamut simply bec an icc profile will tranlate the 100% cyan into what it thinks will produce the LAB reference given my ink/machine/media/etc setup-whether it means adding/subtracting colors...

@eye4clr if i got interested in large format printing 10 years ago, there is a good chance that i would have joined the same forums that you were able to join. 10-15 years ago, the only forums/lists that i joined were technical discussions on hardware, games and networking. these were forums...

wow. 6 years and just one set of print heads? that's gotta be some kind of record. me, my heads will experience some deflections or cloggings if i don't use them for more than 2 days. it's like a mini heart attack when i try to get the nozzles back into perfect shape. and sometimes, i don't get...

@guillermo not even for heads? :'(

i'm still putting my money on the encoder strip. if i were you, i'd clean the sensor with a contact cleaner. :P

this error also happens when the cable for the head with temp reading [usually the black head] gets disconnected. turn off the machine and make sure that all cables are properly seated.

@rooster i might not be able to wait for 20+ years worth of work experience.. but yes, the stuff that profile maker manual has shown me is pretty significant. it might lack the detailed explanations that i need, but at least it teaches me the basic terminologies and concepts that i need to get...

@eye4clr i wonder how many people actually miss this part. when i started this, i thought that the icc profile was the beginning and end of it all. you guys have been incredibly helpful in providing the much needed details. i kinda feel sorry for the other guys who started profiling with only...

@rooster this might sound like a really dumb question, but i'm a bit confused about the "after linearization" part. in profile maker, from my limited understanding, i assume that the linearization would happen during the construction of my profile. now, how do i get the max Yellow limit...

gee. now that i have a decent profile.. i don't need to actually print a file to see how it's going to look on vinyl?!? wow. haha. this just keeps geting better and better! @rooster/eye4clr - one thing i forgot to mention tho... i think i skipped a very important part of the profile process. i...

@rooster - i just made my first 720-8 pass profile. it took me 5 whole hours to do it. but at least i think i did it right. my prints look waaaay better than the generic versaworks profiles. in fact, i think they look almost WYSIWYG after i profiled my monitor. now, i hope it's not too much to...

i don't know whether i'm supposed to be sad that my usual 720 x 720 would be limited to print at such mediocre quality, or that i now have the potential to print such vibrant colors after the proper profiling of my 32 pass resolutions. :P

wow. look at those differences. but are those differences caused by improperly using the same profile across 2 different resolutions, or is it because only the higher resolution one was able to reach the particular color gamut that the art was looking for? [due to it's higher ink limits]

@rooster: thanks for the info! with the expansion of the color gamut at least i now have an incentive to profile at higher resolutions other than the "you just have to do it or else" reason. :)

argh. i was afraid you'd say that. hehe. but thanks for the input. i really appreciate it. and yes, i will be doing it as best as it can be done. :) thanks again!

ahhh.. yes. that makes perfect sense. thanks! as a follow up question... do i have to start from scratch every single time? or could i get away with just profiling the linearization? :)