Questions on Printers and Paper.

I use 24 pound paper inkjet since that is the highest weight paper i can find. I see laser paper is 28 or 32 pounds...forget which it was and I understand the reason for laser paper. Laser printer use rollers so the paper must be perfectly smooth so that the rollers make contact. Anyone who has seen someone try using embroidered(SP?) paper on a laser printer understands the reason. My question is for inkjet printers....is there a particular reason for the inkjet paper? Is it not smooth and has holes so that the ink properly sinks and adsorbs into the paper? Anyone know of a higher weight paper than 24 lb for inkjet?

Now for printing. I see printers have 6000x1200 dpi. This makes no sense (SP?) to me. From my understanding shouldn't you want a printer that does 6000x6000 or 3200x3200 over 6000x1200? Does that not cause aspect ratio issues and lose of clarity in the other direction? To me they should be proportional right? or am i missing something?


HF

EDIT: Also why do i always get these lines in my photosmart 7510? I have done clean and align multiply times and i do not have a good enough understanding on printers to understand why this happens. Has my printer become faulty do i need to RMA it?

Also note these happen horizontally as ion whenever the printer makes "the swipe" the whole line is like that.

 

20 pound paper is "normal" for 500 pieces of 8.5"x11" paper in the USA.

22 pound is thicker and considered hi-end; and I have some small experience with it.

FWIW I've no experience with 24 pound paper.

Odds are that you have ZERO experience with 28/32 pound paper?

I've never seen 24lb paper.

You are about the only NBR person who would come up with a question like this.

Why would anyone want a 6000x6000 printer???

Very strange question!

 

proportions if you have a square inch why would you want 6000x1200. It is like taking a 1080p screen and turning it into a 4x4 screen. You would have more details horizontally than vertically. Wouldn't that cause distortion and clarity lose?

The printer would print like this on 6000x1200

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why would you want image to have "pixels" like that and not like

.............
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assuming gaps are proportional.


Also i have 24lb inkjet printer paper and i want to get a higher weight paper because i think it is too think. No inkjet paper is thicker from what i can find than 24lb yet they make thicker laser printer paper. Why? As i said i know why laser printer exists but why is there an "inkjet"

this is the paper i use
http://www.officedepot.com/a/products/562903/Office-Depot-Brand-Premium-Color-Inkjet/

this is the heavier laser printer paper. Would there be any disadvantage to using laser paper over the inkjet in terms of quality and ink bleeding and smugging?
http://www.officedepot.com/a/products/554609/Office-Depot-Brand-Premium-Color-Laser/

as i said you can see that the laser printer is smoother so it holds toner better but would that cause bleeding or smearing because it is too smooth for inkjets.

inkjets spray ink on and lasers roll it on so could maybe the ink not absorb correctly since it is so smooth?


Anyways is what i am explaining not making sense too you? Is there something in particular you don't understand that i can explain better. Sorry i am terrible at explaining when writing it out.

Also to your experience question....hence why i am asking here -_-

Also what the duce is up with my printer and those damn lines that never go away even when cleaned and calibrated???

 

This last part, i.e. your frustration w/ your printer problem, is something I can understand.

If I can think of anything useful to add, I'll do it ASAP.

Maybe this will get your thread moving forward?

Other than that, good luck.

 

Here see this picture. I hope this helps you better understand what i am trying to understand on how printers print and why almost no printers print 1:1




15:3=6000x1200 in proportion

 

That doesn't mean anything to me.

What is your current printer and what did it cost in USA dollars?

Meaning buy a better/more expensive postscript printer; see: PostScript - Wikipedia, the free encyclopedia

 

nm you are not getting anything...i honestly have no idea why this is this hard to understand what i am getting at

 

depends on your printer. a good inkjet has no issue with 32lb paper the inkjet paper is nothing more than marketing as almost all printers will run on 20-30lb cotton bond. Laser paper is exactly the same and I have been using 24lb photocopy paper in almost all my printers for close to two decades.

severly, you are thinking of printers like your monitor and the first thing you missed was the abbreviation DPI. = Dots Per Inch. meaning that for every square inch on your paper the printer is capable of putting so many dots horizontally and vertically. basically anything over 600 is great for light photo work and text, 1000 for photographs. whay they don't tell you is how many passes the head has to make to interpolate that resolution. and much of the resolution depends on the accuracy of the stepper motors for the paper feed and linear motion

open it up and look to the sides and bottom of the print heads, chances you have a piece of lint there covered in ink causing the streaking. a q-tip with rubbing alcohol is your friend

 

i cleaned the heats with a microfiber cloth and now i get tons of white lines :/ Should i buy a new printer head? after cleaning it is even worse. Also than why do they say 6000x1200 DPI instead of 7,200,000 per inch. why give an aspect ratio? I under stand 600 dpi but not the reason for using 6000x1200 dpi if it really is horizontal x vertical or vice verse that makes no sense

here is a random example
http://www.walmart.com/ip/Brother-HL-2230-Laser-Printer/19477126

2400x600 DPI is that doesn't mean an aspect ratio than what?

another one

http://www.officedepot.com/a/products/318003/Canon-PIXMA-iP2702-Inkjet-Printer-Color/

4800x1200

EDIT: I think i found the awnser

http://www.designerstalk.com/forums/print/65592-reaaaallly-high-dpi-printing.html#post802362

if a printer is 4800x1200 that means it prints 4 colors to make one "pixel" since it has 4 colors to mix to make a single color. think of it like this

red|blue|green|black, red|blue|green|black, red|blue|green|black, red|blue|green|black, red|blue|green|black

like a CRT monitor would be 4,800x1200 to equal 1600x1200

Does that make sense and is that right?

 

quit thinking like monitors, printers don't HAVE an aspect ratio per say thay have horizontal and vertical DPI. you can have a printer that is 5" wide or 6 feet wide and they can have the same resolution. they don't have a fixed number of dots ( pixels ) over the width of the page but measured over the width/height of the page.

for example in a screen you can have 1280x800 FIXED resolution. in a printer you don't have it fixed at all. your page size increases the number of dots because there are more inches of paper to deal with

Nope. a printer can mix colors to make up a single or cluster of pixels. ( CMYK color )

HowStuffWorks "How Inkjet Printers Work".

ok for this whole resolution bit. in a 15" LCD you can have 1366x720 or 984,000 pixels roughly. and if you don't use your whole screen you use less as each pixel is fixed to the screen size.

Now I will use my main color laser for example it has a 1200 x 600DPI imaging resolution. so if I print an image that is 1" x 1" my output will have 1200 pixels horizontally and 600 vertically all optimized. if I print an image 2" x 2" it becomes 2400 x 1200. if I max it out at 13" x 19" it is then 15,600 x 11,400 pixels. output resolutions are always DPI and not at all related to screen resolutions which are normally a fixed aspect. for output devices it is the DPI / and output size which dictates the pixel number and not a set maximum per page

 

I know the res is not fixed on paper...I am not retarded. I am talking about looking at the per inch.


You just confirmed what I was asking since first post....the aspect ratio per SQUARE INCHE is SKEWED. And I have been asking WHY!


You have more detail going one direction than the other why? Why would u want more.detail in one direction than the other...this is what I have been trying to figure out.

Again I have no clue how u think or where u got dpi per page when I have clearly stated PER SQUARE INCH please refer to my photo....you still have not explained WHY you have more detail going in one direction than the other.

 

simple. it comes as to how accurate the imaging system is. in an inkjet the drivers that go horizontally are more accurate than the stepper motor and gears that push your paper through. in a laser it is how accurate the laser or LED splitter is and the maximum resolution the imaging drum can take.

and some printers ARE 1: 1 but usually only high end photo units now. our AGFA Laser unit and our AGFA film unit are both 4000 x 4000 DPI.
older units were commonly 96DPI ( 96x96 ) and a great number of old HP Desktets were 300X300.

nowadays no one cares as even the lower of the resolution numbers is always more than adequate so no one really cares much any more

 

Don't say something doesn't make sense. It makes perfect sense. You just don't understand it. They are dots, not pixels, dots. Each individual dot can be any color of the rainbow, and in one inch, there are so and so amount in the vertical, and so and so amount going in the horizontal.

No, there is NO aspect ratio. The printer has no aspect ratio. Stop thinking that it is a computer monitor, it isn't. We are talking about one inch square. If the computer tells the printer to print a blue square whose sides are one inch long, the printer will print a square whose sides are one inch long. The printer will spray out so and so many blue dots in the vertical axis, and so and so many blue dots in the horizontal axis, depending on the dpi you chose to print at.

There is a really easy explanation for this. The inkjets can move very precisely from side to side to get a very high resolution in the X axis. But they only slide from side to side. To change position on the Y axis, the paper has to move, and the printer can't move the paper along with the same precision and have it all line up perfectly as it can do with the inkjets moving from left to right.

 

Thank you this is what i was looking for. I have seen the whole how it works thing on netflix quite awhile ago but it never went over why ones have the odd aspect ratio of detail. Also when it makes a dot of color does it do it with multiple colors on top of each other or side by side? I assume it is on top of each other but want to clarify.

so than what do you possible print that uses such a skewed detail? I don't see any practical application for anything that is not 1:1. You obviously can't print photos with 6000x1200 dpi since that would crunch them so if you did print it with such dpi with out crunching the image it would just added more pointless dots like when you use windows picture viewing program and it just adds new pixels with relatively close accuracy.

So my question is what would you actually use a skewed dpi like that for?

If you print a photo at 6000x1200 what ends up happening...crunches it or just adds several dots of the same color for that region to maintain aspect ratio? I thought i printed once with a skewed dpi and it printed all crunched but that was years ago if i did that.

Also where are these "high end" photo printers? I would love to look at them and keep note of them for when i get rich and i buy one ^^

Yea i know 300dpi is relatively the best an eye can see...not sure the distance that is maybe reading distance i think. I think mine does 600x600 at the top end.

Also KCETech do you think i need a new printer head since after i cleaned it now it is worse? I can try messing around with it some more but if it isn't that expensive of a piece i might as well replace it and save the old one for a spare.

Anyways thanks for your help KCE

 

Multiple colors are sprayed simultaneously at the same point to form a single dot of color.

Nothing is skewed. Nothing gets crunched. All it means is that the printer has a higher resolution in one axis than it does in another. If you look at it under a microscope, each dot will be four times taller than it is wide.

Printing at a higher DPI than the image does mean there is some interpolation, ie creation of new pixels. But printing at a DPI lower than the image means you will lose data. If you want to print out a super high res picture in a small size that will stand up to scrutiny under a magnifying glass, then you might want to print at the printer's maximum DPI. The computer and printer will do whatever they have to do, whether it is upsampling or downsampling, to convert the image to the DPI it will be printed at.

 

thank you so my drawing was right the dots are long and narrow...at least if your right. That is what i was asking earlier too. So it will interpolate...finally! all my questions answered!!! Thanks!

 

BTW I think i have figured out what that line is on the picture on my original post. I think it is the printer doubling/overlaping the printing process hence why it shows up darker. I just got a new print head and it does the exact same thing. Any idea on why it happens now no matter what i do?