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Laser printer gloat

Discussion in 'Electronic Repair' started by David Nebenzahl, Nov 4, 2009.

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  1. This inspired by the mini-thread in the thread up yonder about HP
    DeskJet printers. Actually something of a reverse gloat, along the lines
    of "my old printer still works; does yours?".

    Got my HP LaserJet 2100M (600 DPI w/PostScript capability) ca. 2000. Not
    only is the printer still working perfectly, but I'm still using the
    same cartridge I got with it!

    Which is a little puzzling; while the printer hasn't exactly been used
    in a production environment, I have put plenty of pages through it:
    printed out many entire manuals, etc. I'm just waiting for the cartridge
    to empty out, but it still hasn't come close. (I even have a 2nd
    cartridge I got with the printer, still in its foil package.)

    One thing I really don't like about this, and really most HP printers
    that I've used, is that it hates to print on the back of printed sheets.
    Usually it eats/shreds about half the sheets one tries to print this
    way. Yeah, I know, you can get HPs with "duplex" options, but to me,
    that's utter bullshit. I remember the old Panasonic laser printer my old
    office had. It was a huge beast, and certainly no better than the HP we
    also had at the time (LJ 4???), but the Panasonic would feed *any* paper
    you put into it, even if it had just been run through the printer on one
    side. I'd always use it to print out my manuals on 2 sides for proofing.

    Other than this, the LaserJet is a fine piece of equipment.
     
  2. Warren Block

    Warren Block Guest

    Check that there's still some tread on the rollers, and maybe the
    separation pad.
    All the duplexers do is flip the paper over so it can refeed. Printing
    on the blank side of once-printed paper shouldn't be a problem.

    Several brands of big office copier/printers used to provide me with
    lots of hundred-page PostScript misprints. That once-printed paper
    worked fine in LaserJet 4050 and 4350 printers.
     
  3. **I was just saying to my partner last week, that what I hated most about my
    HP Laserjet 5MP (ca. 1994) was that the damned thing refuses to stop
    working. I've fed it with more than a dozen cartridges (around 60,000 pages)
    and it simply works and works perfectly. Print resolution is flawless, paper
    jams almst unheard of (one every thousand pages or so). I've even been using
    re-filled cartridges (despite HP's dire warnings), which cost around
    AUS$60.00 apiece and it just won't stop. As of 2009, it can only be regarded
    as a slug (6 pages/min), but it does the job. Damn it! I really wanted an
    excuse to buy one of those all bells & whistles, HP colour laser printers.

    FWIW: In the time I've owned the HP, I've thrown out four ink jet printers,
    of various brands. They are, on the whole, utter crap. My HP will probably
    still be working well into the next millenium.
     
  4. D Yuniskis

    D Yuniskis Guest

    Most toner cartridges are designed for thousands of pages.
    (e.g., 5,000 pages -- 10 reams of paper)
    I've had the same problem -- though I consider it an *annoyance*!
    I routinely rescue color printers (not the cheap inkjets), run
    them until they run out of ink/toner and then scrap/recycle them.

    Unfortunately, even printing 8.5x11 photos (i.e., 100% ink coverage)
    I haven't been able to "empty" any of them! I've been concentrating
    on a Phaser 8200 for the past year and it looks like there are
    still many months more of service left in the "ink tray" :<
    You've either got bad rollers, a bad fuser or "off brand" toner.
    I haven't had problems with any LJ (I currently have an LJ4M+
    and an LJ6P) printing "back side" (the LJ4M+ has the optional
    duplexer so it *wants* to print "verso")
    I couldn't *kill* my LJii! I finally had to get rid of it as
    the electric costs were ridiculous (though the toner carts
    were awful cheap!)
     
  5. D Yuniskis

    D Yuniskis Guest

    Think carefully before buying color. Decide what you really need
    from the printer (I recall going through this exercise at a company
    where we were *designing* a printer). I use different printers
    for different jobs.

    E.g., LJ6P for low volume B&W printing -- when I want to
    print a web page or "copy" a document (using a scanner);
    LJ4M+ for big B&W jobs (I think it is 12PPM and duplexes
    so it saves me paper); a Sony DPP-EX50 for postcard photographs;
    Phaser 560 for high volume color "documents"; other "solid
    inkj" phasers for large color photos; R1800 for big photos
    and/or CD labels; etc.

    If all you need is "multicolor business documents" (i.e., where
    ICM isn't important) you can more effectively trade money for
    speed, reduced supply costs, etc. OTOH, if you want to print
    photos, you will find the cost of printing "business documents"
    to be much higher than you would like.
    HP inkjets are total crap. Some of the high end Epson's are
    respectible -- *if* you maintain them well (I have an R1800,
    SC3000 and SP2000P which have all performed well -- though
    Photoshop doesn't like the oversized pages on the SC3000)
     
  6. Nope. Not the problem. It's inherent in the lousy HP feeder design. I've
    never seen a LaserJet that would print on the back side of just-printed
    sheets even when brand new.
     
  7. Exactly. (And to the person in this thread who responded to this with
    "bullshit", I say "bullshit!" right back atcha.)

    In case I wasn't clear, the problem I was referring to was printing a
    document on both front and back, where you first print the odd pages,
    then run the stack back through on the other side and print the even pages.

    Every non-duplexing HP LaserJet I've ever seen will **** up and jam if
    you try to do this. The problem, as you said, is the curl imparted to
    the paper by the fuser. I have had some success taking the first-printed
    stack and "working" it vigorously to remove the curl, but it's a pain in
    the ass, and not guaranteed to work.

    Since there are other laser printers that don't have this problem, I can
    only conclude that HP LaserJets have inferior feed mechanisms.

    And I do know what the hell I'm talking about: in a previous life I was
    a printer (as in a real printing press, not desktop computer printers),
    so I've dealt with lots of machines that eat paper.
     
  8. I've done all those things; none of them make the slightest difference.
    (As a former printer, it's an automatic reflex for me to fan paper
    before inserting it into a paper-eating machine.)
     
  9. Warren Block

    Warren Block Guest

    Hmm. The LJ2100 feeder is kind of poor, like a lot of the earlier and
    lower-end LaserJets. The 4050 and up have the best I've seen. I've got
    some LJ2100s and will give this a try.
    Have you tried a 4050 or newer?
     
  10. No; I should have said that my experience with these printers is as of
    about 5 years ago. Let us know how the feeding experiment with the 4050
    goes.
     
  11. Bob Larter

    Bob Larter Guest

    It'll work better if you ensure that you print on the correct side of
    the sheet first. Check your paper packet for an arrow, & a label saying
    "Print this side first", & load your paper tray accordingly. It'll also
    help to riffle the stack of paper before loading it into the cartridge.
    Give the paper cartridge a shake to even up the edges before putting it
    in the printer.
     
  12. Bob Larter

    Bob Larter Guest

    That's good advice too, although it's unlikely to be a problem on a
    printer that's still on its first(!) toner cartridge.
    Yep. I've never had any trouble printing on used paper with any
    HP/Canon/Apple laser.
     
  13. Bob Larter

    Bob Larter Guest

    Oh bullshit. I have nearly 30 years of experience with
    HP/Canon/Apple/Brother lasers, & they handle double-sided printing
    better than just about anything else on the market. You're obviously
    doing it wrong. See my other post in this thread for tips.
     
  14. Yeah; if only we could have desktop printers with feeders as reliable as
    the one on the Heidelberg Speedmaster I used to "own" ... now *that's* a
    feeder!
     
  15. baron

    baron Guest

    David Nebenzahl Inscribed thus:
    If I remember correctly the toner cartridge was good for about 10K
    pages.
    The old Panasonic's were great printers ! As you remark it would print
    on anything including the back of already printed sheets. Ours was
    used with two and three part NCR paper. The hard part was the software
    to ensure that it registered and collated properly.

    The bottled toner was very cheap as well which made the machine very
    economical compared to similar machines.
     
  16. PeterD

    PeterD Guest

    My *OLD* apple laserjet II is on it's bizillionth cartridge and still
    printing. We do bulk printing of both card stock for bin lables, and
    product instruction sheets (quality is really not the most important
    factor for these...) We tell it to print a 100 sheet group (limited by
    that tiny tray!) and set it going. Later someone grabs the sheets,
    reloads the tray and off it goes again.

    We are (sadly, or gladly, not sure) migrating to high speed Xerox
    printers. Easily ten times faster than that Apple, and 500 sheet trays
    too.

    Then the LWII retires to just bin label cards, something that is done
    about two times a month.
     
  17. PeterD

    PeterD Guest

    You are just not printing enough!

    Pickup rollers probably, clean with acetone as a first step try. Then
    replace 'em.
    Make a wonderful space heater for winter, however. Keeps my office
    toasty warm!
     
  18. Roger Blake

    Roger Blake Guest

    My Canon LBP-430 (same as an HP LaserJet 4L) is still soldiering on
    after 15 years. I have changed the cartridge a couple of times, and
    recently scored a few very inexpensive toners at a thrift store
    to keep it going another 15 years. :)
     
  19. Nope. Not the problem. It's inherent in the lousy HP feeder design. I've
    My 4M will. However, there's no question that it's not a bad idea to let the
    paper cool down and flatten out.
     
  20. Yes. Like most real printing presses (as opposed to smaller "presses"
    that are somewhat disparagingly called "duplicators"), the feeder uses
    vacuum pickup, assisted by air blowers to separate the top sheets of the
    stack. The Heidelberg feeder was pretty cool: it somewhat
    counterintuitively picked up the sheet at the *back* and fed it forward.
    Really cool to see a "stream" feeder in operation. When properly
    adjusted, performs flawlessly.
    That would be kewl.
    Ackshooly, the AB Dick 320 offset duplicator was a table-top model only
    slightly larger than the larger laser printers of the early days. I
    first learned to print on one of those, using direct paper plates (you
    typed and wrote directly on the plate using special ribbons and pencils,
    almost like a mimeograph). But the 320, being a dinky "press", used
    friction feed (rubber rollers) which of course isn't nearly as good as
    vacuum feed.
     
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