Section 11.3. Controlling Printouts | Windows Vista for Starters: The Missing Manual

11.3. Controlling Printouts

Between the moment when you click OK in the Print dialog box and the arrival of the first page in the printer's tray, there's a delay. Usually, it's very brief, but when you're printing a complex document with lots of graphics, the delay can be considerable.

Fortunately, the waiting doesn't necessarily make you less productive, since you can return to work on your PC, or even quit the application and go watch TV. An invisible program called the print spooler supervises this background printing process. The spooler collects the document that's being sent to the printer, along with all the codes the printer expects to receive, and then sends this information, little by little, to the printer.

Note: The spooler program creates huge temporary printer files, so a hard drive that's nearly full can wreak havoc with background printing.

To see the list of documents waiting to be printedthe ones that have been stored by the spooleropen the Printers window, and then double-click your printer's icon to open its window.

Tip: While the printer is printing, a printer icon appears in the notification area. As a shortcut to opening the printer's window, just double-click that icon.

The printer's window lists the documents currently printing and waiting; this list is called the print queue (or just the queue ), as shown in Figure 11-4. (Documents in the list print in top-to-bottom order.)

You can manipulate documents in a print queue in any of the following ways during printing:

Put one on hold . To pause a document (put it on hold), right-click its name , and then choose Pause from the shortcut menu. When you're ready to let the paused document continue to print, right-click its listing and choose Resume (Figure 11-4).
Put them all on hold . To pause the printer, choose Printer Pause Printing from the windows menu bar. You might do this when, for example, you need to change the paper in the printer's tray. (Choose Printer Pause Printing again when you want the printing to pick up from where it left off.)
Add another one . As noted earlier, you can drag any document icon directly from its disk or folder window into the printer queue. Its name joins the list of printouts-in-waiting.
Cancel one . To cancel a printout, click its name and then press the Delete key. If you click Yes in the confirmation box, the document disappears from the queue; it'll never print out.
Cancel all of them . To cancel the printing of all the documents in the queue, choose Printer Cancel All Documents.

Note: A page or so may still print after you've paused or canceled a printout. Your printer has its own memory (the buffer ), which stores the printout as it's sent from your PC. If you pause or cancel printing, you're only stopping the spooler from sending more data to the printer.