[slex]

Well, I'd have to make a video to show you exactly how they are used, but I'll try to explain without the video.

As far as "Autocrop" goes, it is self-explanatory. When you choose it, it crops as much as possible of the white space from top, bottom, left and right, as long as it shows you the whole page with the text. If you choose higher values it could crop out some external elements to the main text (e.g. page numbers) and it zooms in more. Zoom level is not constant from page to page - if some pages have more text, the zoom in level will be smaller. If some have less text, the zoom in level will be higher.

"Scrolling mode" should be self-explanatory, too. When you are in "page mode", when you press "next" it goes to the next page. If it is zoomed in and only a part of the page is shown on the screen, it goes to the next page with the same zoom level and the same portion of the page as with the previous one.

So if you zoom into the page in a way that you see the first 2/3s of the page it will be something like

Page 5 (only section 1 and 2 are visible)
1
2
3

press "next" and you go to
Page 6 (only section 1 and 2 are visible)
1
2
3



If you are in a "scroll mode" it doesn't go from page to page (showing the same portion of the pages) but it scrolls like a webpage on a computer screen. If you have zoomed in and it shows the first 2/3s of page 5 (for example), in scrolling mode it won't go to the first 2/3s of page 6. Instead it will go to the last third of page 5 and the first third of page 6 (almost, because there are white spaces on the bottom of page 5 and the top of page 6, which become visible in "scroll mode" regardless of the zoom level). The advantages of "scroll mode" are that you can zoom (using "custom zoom" or "adjust margins" or "zoom by two points") the page so that you have no white space on left and right. When you do that on some documents M92 will not show the whole page vertically. If you are in "page mode" when you zoom like that, pressing "next" will take you at the next page showing you the same portion of the next page, but you will have missed some of the text from the bottom page from the previous one. In "scroll mode" it goes not on the next page, but on the next (visible) screen. There is only overlap of two or three rows of text with the previous screen. When you scroll down the dashed line shows you the row at which your previous screen ended.

In scrolling mode:

Page 5 (only section 1 and 2 are visible)
1
2
3

You press "next" and you get

section 3 of page 5
section 1 of page 6

You press "next" and you get
2
3
of page 6

Regarding "paper mode" - it's used when you have a multicolumn paper (as in some academic journals or some magazines). Then you zoom in on one secton of the paper in such a way, that the text of the column becomes big enough. Let's say that it is 1/6th of the page. That is, you view only 1/6th of the printed page on your M92 screen (section 1). Then the movement on the screen follows this pattern:

1 4
2 5
3 6

When you press "next" you go to section 2. You press "next" again and you go to section "3". You press "next" again and you go to section 4. Then come sections 5 and 6. How many sections you have depends on the zoom level. The higher the zoom level, the more sections there will be and more columns, too. Dashed lines show up here, too.

I don't read comics, so I can't tell you about the comic mode from experience. But I think it follows the same principle as "paper mode", only the movement follows the pattern:

1 2
3 4
5 6