When printing in book fold on my new acer laptop each half of the page is printing on a separate sheet although i have printed in this form once before.

Before printing you need to select the size and orientation and it's a good idea to look at the preview before printing. That saves a lot of paper.

it is normal, just mixing, continue printing, it will slowly cover the page till the entire page is printed or copied, dont worry, just reuse the half printed paper till when the pages print complete.

One sheet booklets generally are two-sided printing jobs, accordion fold, gate fold or quarter or half fold styles. Determine which of these styles your's will be and make a "dummy"....it's as simple as folding the paper according to its finished form and marking each of the panels with scaled type or pictures. By making the dummy, the layout will reveal itself when opened and flattened. You will most likely have to "flip" the pages and print each side at separate times unless your machine is a "duplex" type of printer. The "dummy" is the key to the puzzle. Simple as folding and unfolding the panels.

I believe this is going to be a software issue. Do a print preview of the booklet first to see if they are showing up in the right order. If they are, then it is a printer issues and I really can't help you there, but it they aren't then you know it might be a software issue. Check you formatting on the document before you trying printing it again.

Select the Page Layout tab, in the page setup group, select margins, The at the bottom, select custom margins. on the margins tab about 1/2 way down, select the down arrow next to Multipl epages and select 2 pages per sheet. Print a couple test pages and see if that is the setup you need.

CAUSE: The tri-fold printed on side is set incorrectly on the machine.

SOLUTION: To change the tri-fold from printing inside fold to printing outside fold, perform the following:
1. Press the Utility key.
2. Select Admin mode and enter the password.
3. Press Copier Setting.
4. Press the down arrow.
5. Press Tri-Fold Printed on Side Selection.
6. Press either INSIDE or OUTSIDE.
good lock

Internet printing can be tricky because everything is in HTML which is not designed for printing but for clicking. So there are links and features but when you try to print it can be blank or half pages. Is there a button on the site that says printable view or print these directions or something similar? If you click on that it should allow you to print the page as you see it on your screen.

When you select Book fold for your page setup, Microsoft Word prints two pages on one side of the paper. When you fold the paper, it opens like a book. This option is intended for documents that have more than two pages.
1. Set up your document as a booklet.
When you create a booklet, it's best to start with a new, blank document so that you have better control over the placement of text, graphics, and other elements. You can add a book fold to an existing document, but you may have to reposition some elements once the book fold is in place.
A. Start a new, blank document.
B. On the File menu, click Page Setup, and then click the Margins tab.
C. In the Multiple pages list, select Book fold.
If your document is not set to landscape orientation, Microsoft Word sets it to landscape.
D. In the Inside and Outside boxes, type or select the amount of space you want for the inside and outside margins (margin: The blank space outside the printing area on a page.).
If you need even more space along the fold to accommodate binding, type or select the amount of space you want in the Gutter box.
E. In the Sheets per booklet list, select the number of pages you want to include in a single booklet.
If the number of pages in the document exceeds the number of pages you select for a booklet, Word prints the document as multiple booklets.
F. Select any other options you want in the Page Setup dialog box.
G. Add text, graphics, headers or footers (header and footer: A header, which can consist of text or graphics, appears at the top of every page in a section. A footer appears at the bottom of every page. Headers and footers often contain page numbers, chapter titles, dates, and author names.), and other elements to your document as usual.
2. On the File menu, click Print.
3. Set options for printing on both sides of the paper.
If you're using a duplex printer (one that automatically prints on both sides of the paper)
Click Properties, and then set the options you want. If you have a choice of setting the page orientation and duplex options, select landscape orientation, and flip the document on the short edge or short side.
If you aren't using a duplex printer
In the Print dialog box, select the Manual duplex check box. Word will print all of the pages that appear on one side of the paper, and then prompt you to turn the stack over and feed the pages again.
4. Select the page range you want to print.
If you click Current page or Pages, Word prints the page you indicate, plus the three other pages that belong on the same sheet of paper.
If you click Selection, Word prints your selection using the default page layout instead of booklet layout.

Whats the weight of the paper? Try a lighter weight paper. Also, did it do it when you first got it? If No, it is called a limitation, it can't be done. If it did have your service tech come out and clean or replace the feed rollers or clutchs.