When you print (or print preview) and elements are cut off (e.g. after 1st page, or "randomly") you should check your CSS rules for these:

• Is there an element with "display: inline-block" that surrounds your content? Make sure it has "display: block" for printing.
  This primarily affects Firefox and Internet Explorer. Chrome seems to be able to handle inline-block elements in most cases.

• Does the element itself, or a container, define "overflow: hidden"? Use "overflow: auto" (or maybe "overflow: visible") instead.

• Is the element itself, or a container, using "position: absolute" or "position: fixed". You should use "position: static" (default positioning) for printing.

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Note that print rendering varies across browsers even more than screen rendering.