h a l f b a k e r yRomantic, but doomed to fail.
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A laudable venture, [silverstormer]. I am wondering, though, if the problem is that we don't have a sufficiently diverse array of printer trays. Print managing software can already print from a selected tray source but the problem arises when it is filled with an inappropriate but equally sized bit of paper or someone selects or overrides the paper selection.
I am assuming that we are talking about helping out the minority here. Someone puts their headed paper into the A4 tray and yells "NOBODY PRINT anything!" whereupon a voice at the back squeaks "too late!". A 'pause' function for the plain print job would be very useful.
Any idea if this barcoding can be extended to cover headed or *good quality* paper types? |
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It would take a while for all the various manufacturers to comply, but I believe it would be an effective addition to printer technology; more uses may also be found. All that needs to be done to start the ball rolling, is the development of a protocol manufactures can adhere to.
As far as other paper types go, letterheads and the like may be given a suitable barcode on the reverse. If this technology is accepted, nobody is going to mind too much. How small can barcodes go without losing reliablity in scanning terms?
Another area to be researched is perhaps the barcodes future successor, RFID technology. But for now I think that's going a little too far. |
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RFID Tag on every page?!. A tad too far I agree! |
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Isn't this something that HP has done
with it's multi-tray Laserjets? You set up
the media type and paper size for each
tray and specify it again with the printer
driver when you print. That way the
right paper is used without your
explicity telling it which tray you want
to print from. |
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Tell it you want to print on a media type
or paper size not currently installed and
it sits there until you add the paper (and
tell it that it has it) or tell it to print
from a specific tray. |
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I don't think many people use the
feature. |
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Agreed [St3f], the problem comes when you load the paper tray with something 'inappropriate' and HP says 'How was I to know the paper was headed!'. Most people dont use the feature because they dont understand it (neither do I properly!). The other problem is when you get sent e.g. a MSWord doc that has an inapproriate print setting. I give you the 'Load Letter' tag at the printer while you say 'Wait! - this is A4!'. I guess it works if everbody uses their printer settings correctly. |
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What is didn't say is that I think the
barcode on labels bit of the idea is very
cool. |
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The large Xerox printers also have the capability to “hold on” until the correct stock is loaded and the user has okayed that the print job is to commence. The job is held while other jobs in the spooler queue without special stock requirements are allowed to go ahead and print. |
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The HP inkjets, at least the more expensive ones in the OfficeJet series, use an optical sensor to judge what type of stock is loaded so that ink coverage, print head speed, etc., can be adjusted to suit the stock. You can watch it make the analysis right after it loads the paper around the platen; a blue LED in the print had turns on and illuminates the stock for a brief moment and the the printing begins as soon as the light turns off. |
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Seems to me that a barcode ID or maybe even a microscopic pattern in the paperstock surface could be added and read by the printer. Maybe small desktop printers could be smart enough to print jobs out of order depending on the per-piece paper stock identification. That way a user could sloppily load a few sheets of label stock along with other types of stock, all in the same feed tray, and the printer would determine what job, from the queue, to print given the stock currently under the print head. If there isn't any other job in the queue and the stock is incorrect the printer could just eject the improper stock until it reaches the right stock in the stack--up to some reasonable limit, say 5 or 6 sheets, so that the printer doesn't unload its entire tray looking for stock that doesn't exist. |
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[Bz], I can see that a Xerox might be cleverer but do you think that this happens with your 'bog standard' HP series, i.e. do they hold the job in the queue?. I don' know so I am asking here!. |
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I don't know, either. Sorry. |
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You can set your printer to print at a particular time, say your lunch break! |
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http://www.pcworld.com/howto/article/0,aid,103805,pg,2,00.asp |
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I work for a publishing company and our printers include a 'Mailbox' function. You print to the printer's mailbox and then upon arriving at the shared printer can load the approapriate bypass tray with labels/headed paper and whatnot, and print at your leisure. |
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