General > General Technical Chat

Color Laser Printer WIFI (Although I'm old!)

<< < (14/14)

rrinker:
 Interesting - the best overheads I ever saw were from a wax Tektronix printer we had at the place I worked. There was a certain quality to them, reminded me of an elementary school art project where we used crayon shavings then pressed it with a hot iron. The ones we used were special blanks made for that type of printer - I can't imagine an ordinary type working well. Even ink jets have problems, the transparencies designed for inkjet printing usually have a slightly rough surface on the inked side to allow it to adhere.

 I did have one problem with my color laser, because of rarely actually needing color, I ran it for a long time with the color toners actually empty. Until it started leaving a pattern of lines on black and white prints. Cleaning didn't help, looking at the black cartridge, it was fine. But I pulled a color cartridge - black stripe across the drum. Checked the other 3 - same thing. Scraped, not deposited - I guess they don;t like running with absolutely no toner. Replaced the colors - black printed perfectly fine again.

tooki:

--- Quote from: rrinker on April 07, 2020, 06:35:04 pm --- Interesting - the best overheads I ever saw were from a wax Tektronix printer we had at the place I worked. There was a certain quality to them, reminded me of an elementary school art project where we used crayon shavings then pressed it with a hot iron.

--- End quote ---
Encaustic painting. ;)

A transparency like that sounds interesting, but not necessarily good.


--- Quote from: rrinker on April 07, 2020, 06:35:04 pm --- The ones we used were special blanks made for that type of printer - I can't imagine an ordinary type working well. Even ink jets have problems, the transparencies designed for inkjet printing usually have a slightly rough surface on the inked side to allow it to adhere.

--- End quote ---
Well yeah, you have to use special transparencies for any printer (the ones for writing on with pens will melt in a laser, in an inkjet the ink beads up on them, and I’m honestly not sure what would have happened in a wax printer).

The roughness of inkjet transparencies isn’t visible when projected. What I can say is that by 1998 or so, when I had a 720dpi epson inkjet, the color transparencies from it absolutely wowed people, because they looked spectacular. (For what it’s worth, the roughness was just for grip, in particular for early HP Deskjets, which had a U-shape paper path with feeble rollers that just wouldn’t reliably transport smoother transparencies. It’s the gelatinous coating that makes them amenable to aqueous inks. Some inkjet transparencies had only very, very subtle texture. And there exist opaque glossy inkjet films based on the same types of coatings, but without any texture at all.)

Navigation

[0] Message Index

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod