How does a duplex printer work?

Discussion in 'UK Macs' started by Caol MacThòmais, Dec 18, 2006.

  1. I occasionally sit and watch my printer, and wonder how it turns the
    page over, any clues?

    kt.
    --
    I was in this restaurant and I asked for something herby.
    They gave me a Volkswagen with no driver.
    Caol MacThòmais, Dec 18, 2006
    #1
  2. Caol MacThòmais

    Gary Guest

    On Mon, 18 Dec 2006 00:49:42 +0000, Caol MacThòmais wrote
    (in article <>):

    > I occasionally sit and watch my printer, and wonder how it turns the
    > page over, any clues?
    >
    > kt.
    >


    The duplex inkjet printers I've seen (HP) have a roller mechanism clipped on
    the back which the paper is fed into and turned over after a short drying
    time.

    --
    remove stars for email
    g*a*r*y*c*o*w*e*l*l*a*t*m*a*c*d*o*t*c*o*m
    Gary, Dec 18, 2006
    #2
  3. Caol MacThòmais

    Tim Streater Guest

    In article <>,
    Caol MacThòmais <> wrote:

    > I occasionally sit and watch my printer, and wonder how it turns the
    > page over, any clues?


    There's an imp inside who does it.

    -- tim
    Tim Streater, Dec 18, 2006
    #3
  4. Caol MacThòmais

    Tim Streater Guest

    In article <>,
    Caol MacThòmais <> wrote:

    > I occasionally sit and watch my printer, and wonder how it turns the
    > page over, any clues?
    >
    > kt.


    My Canon iP4000 does it. There must be a roller somewhere but I can't
    see where there is space for it.

    -- tim
    Tim Streater, Dec 18, 2006
    #4
  5. Caol MacThòmais

    Sam Nelson Guest

    In article <>,
    Tim Streater <> writes:
    > In article <>,
    > Caol MacThòmais <> wrote:
    >
    > > I occasionally sit and watch my printer, and wonder how it turns the
    > > page over, any clues?
    > >
    > > kt.

    >
    > My Canon iP4000 does it. There must be a roller somewhere but I can't
    > see where there is space for it.


    It kinda drives the paper out and then back in again along a different path
    that takes it back underneath and then back through the printing area, and
    the back page is laid out upside down. So to speak. The best place to see
    this, IME, is an old HP LaserJet 4SiMX, which was built like a tank with
    the exception of a small flimsy flap of plastic that the duplexed sheet
    came out underneath and went back in over the top of. When that flap
    eventually got brittle, or more likely warped, the entire duplexed needed
    to be replaced, at usually-uneconomic cost.
    --
    SAm.
    Sam Nelson, Dec 18, 2006
    #5
  6. On 2006-12-18 10:25:57 +0000, Tim Streater <> said:

    > In article <>,
    > Caol MacThòmais <> wrote:
    >
    >> I occasionally sit and watch my printer, and wonder how it turns the
    >> page over, any clues?
    >>
    >> kt.

    >
    > My Canon iP4000 does it. There must be a roller somewhere but I can't
    > see where there is space for it.


    So does my IP4200, and it was the 'where is there space to do this'
    that got me confused.

    kt
    --
    So I met the bloke who invented crosswords today.
    I can't remember his name, it's P something T something R.
    Caol MacThòmais, Dec 18, 2006
    #6
  7. Caol MacThòmais

    Taliesin2 Guest

    On Sun, 17 Dec 2006 20:42:14 -0500, Gary wrote
    (in article <>):

    > On Mon, 18 Dec 2006 00:49:42 +0000, Caol MacThòmais wrote
    > (in article <>):
    >
    >> I occasionally sit and watch my printer, and wonder how it turns the
    >> page over, any clues?
    >>
    >> kt.
    >>

    >
    > The duplex inkjet printers I've seen (HP) have a roller mechanism clipped on
    > the back which the paper is fed into and turned over after a short drying
    > time.
    >
    >


    Anybody get a list of printers (HP preferably) that does duplex printing?

    --
    "Nashan. If you desire to know the truth then
    you must know that you also need the courage
    to accept it" - Crim, from .hack//sign, Ep. 24

    Site: http://homepage.mac.com/taliesin2/Personal1.html
    Blog: http://homepage.mac.com/taliesin2/iblog/index.html
    Blog #2: http://homepage.mac.com/taliesin2/iblogtwq/index.html
    iCal: http://ical.mac.com/taliesin2/Taliesin2
    /|\
    Taliesin2, Dec 18, 2006
    #7
  8. Caol MacThòmais

    Woody Guest

    Taliesin2 <> wrote:

    > On Sun, 17 Dec 2006 20:42:14 -0500, Gary wrote
    > (in article <>):
    >
    > > On Mon, 18 Dec 2006 00:49:42 +0000, Caol MacThòmais wrote
    > > (in article <>):
    > >
    > >> I occasionally sit and watch my printer, and wonder how it turns the
    > >> page over, any clues?
    > >>
    > >> kt.
    > >>

    > >
    > > The duplex inkjet printers I've seen (HP) have a roller mechanism clipped on
    > > the back which the paper is fed into and turned over after a short drying
    > > time.
    > >
    > >

    >
    > Anybody get a list of printers (HP preferably) that does duplex printing?


    HP actually just sold us a Canon printer that did it as they didn't have
    one that did all the things we wanted. That must have hurt!



    --
    Woody

    www.alienrat.com
    Woody, Dec 18, 2006
    #8
  9. On 2006-12-18 21:35:06 +0000, Taliesin2 <> said:
    > Anybody get a list of printers (HP preferably) that does duplex printing?

    I've not got a list but I've just set up a HP colour laserjet 2605dn,
    which does duplex printing (that's the 'd' in the name). The way t does
    so seems VERY strange. The printer is tall rather than wide and it
    spits the paper out the top. When it prints duplex it spits it out 95%
    of the way then drags it back in again. It's very odd watching it do it.

    Jon
    Jonathan White, Dec 18, 2006
    #9
  10. In article <>

    "=?ISO-8859-1?Q?Caol_MacTh=F2mais?=" writes:

    > [...] I can't remember the brand - began with 'K' I think.


    Kyocera?
    --
    Andrew Stephenson
    Andrew Stephenson, Dec 19, 2006
    #10
  11. Caol MacThòmais

    Chris Ridd Guest

    On 2006-12-18 22:32:53 +0000, Jonathan White <> said:

    > On 2006-12-18 21:35:06 +0000, Taliesin2 <> said:
    >> Anybody get a list of printers (HP preferably) that does duplex printing?

    > I've not got a list but I've just set up a HP colour laserjet 2605dn,
    > which does duplex printing (that's the 'd' in the name). The way t does
    > so seems VERY strange. The printer is tall rather than wide and it
    > spits the paper out the top. When it prints duplex it spits it out 95%
    > of the way then drags it back in again. It's very odd watching it do it.


    Our Laserjet 4200mumble does something similar, and amusingly while
    duplexing it warns you on the LCD not to grab the paper :)

    Cheers,

    Chris
    Chris Ridd, Dec 19, 2006
    #11
  12. Jonathan White <> wrote:

    > On 2006-12-18 21:35:06 +0000, Taliesin2 <> said:
    > > Anybody get a list of printers (HP preferably) that does duplex printing?

    > I've not got a list but I've just set up a HP colour laserjet 2605dn,
    > which does duplex printing (that's the 'd' in the name). The way t does
    > so seems VERY strange. The printer is tall rather than wide and it
    > spits the paper out the top. When it prints duplex it spits it out 95%
    > of the way then drags it back in again. It's very odd watching it do it.


    I've got an HP 1320n (n for `EtherNet') which does the same thing.

    Mind you, while I like the printer, the software side of it is bloody
    horrible and I don't think I'll be buying an HP printer ever again. Not
    after the inkjet hassles I've had, certainly.

    Rowland.

    --
    Remove the animal for email address:
    Sorry - the spam got to me
    http://www.mag-uk.org http://www.bmf.co.uk
    UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
    Rowland McDonnell, Dec 19, 2006
    #12
  13. Caol MacThòmais

    Chris Ridd Guest

    On 2006-12-19 07:17:46 +0000, bbet
    (Rowland McDonnell) said:

    > Jonathan White <> wrote:
    >
    >> On 2006-12-18 21:35:06 +0000, Taliesin2 <> said:
    >>> Anybody get a list of printers (HP preferably) that does duplex printing?

    >> I've not got a list but I've just set up a HP colour laserjet 2605dn,
    >> which does duplex printing (that's the 'd' in the name). The way t does
    >> so seems VERY strange. The printer is tall rather than wide and it
    >> spits the paper out the top. When it prints duplex it spits it out 95%
    >> of the way then drags it back in again. It's very odd watching it do it.

    >
    > I've got an HP 1320n (n for `EtherNet') which does the same thing.
    >
    > Mind you, while I like the printer, the software side of it is bloody
    > horrible and I don't think I'll be buying an HP printer ever again. Not
    > after the inkjet hassles I've had, certainly.


    I was just wondering what software you could possibly be referring to,
    and how HP (Apple?) could possibly screw it up. So I googled, and
    whatever they do it must be better than Windows:

    <http://www.computergripes.com/hp1320printer.html>

    How HP have fallen...

    Cheers,

    Chris
    Chris Ridd, Dec 19, 2006
    #13
  14. Chris Ridd <> wrote:

    > (Rowland McDonnell) said:
    >
    > > Jonathan White <> wrote:
    > >
    > >> On 2006-12-18 21:35:06 +0000, Taliesin2 <> said:
    > >>> Anybody get a list of printers (HP preferably) that does duplex printing?
    > >> I've not got a list but I've just set up a HP colour laserjet 2605dn,
    > >> which does duplex printing (that's the 'd' in the name). The way t does
    > >> so seems VERY strange. The printer is tall rather than wide and it
    > >> spits the paper out the top. When it prints duplex it spits it out 95%
    > >> of the way then drags it back in again. It's very odd watching it do it.

    > >
    > > I've got an HP 1320n (n for `EtherNet') which does the same thing.
    > >
    > > Mind you, while I like the printer, the software side of it is bloody
    > > horrible and I don't think I'll be buying an HP printer ever again. Not
    > > after the inkjet hassles I've had, certainly.

    >
    > I was just wondering what software you could possibly be referring to,
    > and how HP (Apple?) could possibly screw it up.


    HP screwed up, trust me. It's not a problem caused by Apple.

    > So I googled, and
    > whatever they do it must be better than Windows:
    >
    > <http://www.computergripes.com/hp1320printer.html>
    >
    > How HP have fallen...


    I had thought that buying a PostScript printer with an Ethernet
    connection would mean that I'd avoid the horrors I'd suffered with the
    HP driver software. Hah.

    I don't recall the full list of problems, but look at it like this: the
    current HP inkjet driver software says it installs the HP inkjet
    utility. I contacted HP when the installer didn't do that and I found
    no mention of any issues on their support site. HP told me that, yes,
    that's right, that version doesn't install the HP inkjet utility - and
    that was that, except that I *might* be able to get a working version by
    diving into my MacOS 10.3 installation thusly.

    The HP installer for the LJ1320n says to install the utility software.
    When that didn't function at all and the Mac got really flaky, I
    contacted HP by email (after checking the HP site, naturally), and got
    told that this was a known issue, and that the HP printer utility should
    not be installed on Macs. Except that the installation instructions
    tell you to do so, and there's no mention of this issue on HP's support
    site.

    It goes on and on and on and on and on like this.

    I have an HP32E calculator from the late 1970s. I'd not part with it
    and that's flat (it's one of the ones with the really nice keyboards,
    and given that it's got fancy modern rechargable cells rather than
    NiCds, it holds its charge and runs for *ages*). The printers? I'd
    happily throw 'em out tomorrow and replace with almost anything decent
    if it weren't for the issue of money. I don't think I'll be buying
    anything from HP again, unless the firm picks up quite seriously.

    Something I quite like: Epson was making `bog standard probably quite
    good enough for what you want to do and rather nice actually, if not top
    quality but at least they're not too expensive' printers back in the
    1970s. It still is.

    Oh yeah, and the duplex unit on my DJ970cxi stopped working.

    Rowland.

    --
    Remove the animal for email address:
    Sorry - the spam got to me
    http://www.mag-uk.org http://www.bmf.co.uk
    UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
    Rowland McDonnell, Dec 19, 2006
    #14
  15. Chris Ridd <> wrote:

    > I was just wondering what software you could possibly be referring to,
    > and how HP (Apple?) could possibly screw it up. So I googled, and
    > whatever they do it must be better than Windows:
    >
    > <http://www.computergripes.com/hp1320printer.html>


    A Windoze shambles? Isn't that a bit unusual these days? And isn't there
    a Wizard that does it, included on the CD?

    I've recently installed a couple of HP 1020s on Macs. An absolute piece
    of cake, of course, but it came with a large, friendly, folded sheet of
    paper that gave all the necessary basic intructions, like when to switch
    on the printer (which was one of the complaints). I never looked at the
    Windows sheet, but the Mac sheet had all that simple stuff. There was
    also a CD that held all the instructions and the drivers.

    > How HP have fallen...


    Sad if true, but that's not my experience.

    The whingers were right about one thing- there's no USB lead included.
    But I'm finding that increasingly common as the bottom line rules more
    and more. It's the kind of decision for which those guys on Wall Street
    earn their ten million dollar bonuses.

    The included software, by the way, Just Works in 10.2.8 and 10.3.9.
    --
    Peter
    Peter Ceresole, Dec 19, 2006
    #15
  16. Rowland McDonnell <> wrote:
    > >
    > > How HP have fallen...

    >
    > I had thought that buying a PostScript printer with an Ethernet
    > connection would mean that I'd avoid the horrors I'd suffered with the
    > HP driver software. Hah.
    >
    > I don't recall the full list of problems, but look at it like this: the
    > current HP inkjet driver software says it installs the HP inkjet
    > utility. I contacted HP when the installer didn't do that and I found
    > no mention of any issues on their support site. HP told me that, yes,
    > that's right, that version doesn't install the HP inkjet utility - and
    > that was that, except that I *might* be able to get a working version by
    > diving into my MacOS 10.3 installation thusly.
    >
    > The HP installer for the LJ1320n says to install the utility software.
    > When that didn't function at all and the Mac got really flaky, I
    > contacted HP by email (after checking the HP site, naturally), and got
    > told that this was a known issue, and that the HP printer utility should
    > not be installed on Macs. Except that the installation instructions
    > tell you to do so, and there's no mention of this issue on HP's support
    > site.
    >
    > It goes on and on and on and on and on like this.
    >
    > I have an HP32E calculator from the late 1970s. I'd not part with it
    > and that's flat (it's one of the ones with the really nice keyboards,
    > and given that it's got fancy modern rechargable cells rather than
    > NiCds, it holds its charge and runs for *ages*). The printers? I'd
    > happily throw 'em out tomorrow and replace with almost anything decent
    > if it weren't for the issue of money. I don't think I'll be buying
    > anything from HP again, unless the firm picks up quite seriously.
    >
    > Something I quite like: Epson was making `bog standard probably quite
    > good enough for what you want to do and rather nice actually, if not top
    > quality but at least they're not too expensive' printers back in the
    > 1970s. It still is.
    >
    > Oh yeah, and the duplex unit on my DJ970cxi stopped working.


    I've had many minor annoyances and problems with an HP colour LaserJet
    2820 [printer, scanner, photocopier] connecting via ethernet that I
    bought a year ago. If the only problems were connected with printing
    under Classic I would accept my antediluvianism was partly to blame but
    just getting the scanning software to work was a trial and I have no
    confidence that any old problems won't reoccur.

    I steered clear of Epson as I'd heard their PS emulation was flaky.

    --
    MJHaslam
    Remove accidentals to obtain correct e-address
    Michael Haslam, Dec 19, 2006
    #16
  17. In article <>,
    Caol MacThòmais <> wrote:

    >I occasionally sit and watch my printer, and wonder how it turns the
    >page over, any clues?


    Disappointingly, they don't generally use a moebius band. They suck
    the paper in and over a roller. This means the paper is upside down
    for the reverse side, but that's fixed in software by turning the page
    bitmap upside down.

    -- Richard

    --
    "Consideration shall be given to the need for as many as 32 characters
    in some alphabets" - X3.4, 1963.
    Richard Tobin, Dec 19, 2006
    #17
  18. Caol MacThòmais

    Simon Dobbs Guest

    On Tue, 19 Dec 2006 07:17:46 +0000, Rowland McDonnell wrote
    (in article <1hql076.gn12pu1174rm7N%>):

    > I've got an HP 1320n (n for `EtherNet') which does the same thing.
    >
    > Mind you, while I like the printer, the software side of it is bloody
    > horrible and I don't think I'll be buying an HP printer ever again. Not
    > after the inkjet hassles I've had, certainly.


    I have the wireless version of the same, the 1320nw, and it works
    beautifully- and did straight from the box, duplexing, wireless connectivity,
    postscript emulation. It is also a masterpiece of simple design and is
    perfectly compact and cuboidal. I think that HP printers are pretty good, and
    without an Apple alternative, would plump for them every-time.
    Simon Dobbs, Dec 19, 2006
    #18
  19. Michael Haslam <> wrote:

    [snip]

    > I've had many minor annoyances and problems with an HP colour LaserJet
    > 2820 [printer, scanner, photocopier] connecting via ethernet that I
    > bought a year ago. If the only problems were connected with printing
    > under Classic I would accept my antediluvianism was partly to blame but
    > just getting the scanning software to work was a trial and I have no
    > confidence that any old problems won't reoccur.


    I can't say that Epson's scanning software is great. Chews up 100% of
    one CPU if idling, for example.

    > I steered clear of Epson as I'd heard their PS emulation was flaky.


    Everybody's PS emulation is a bit flaky - GS aside. HP's certainly is,
    said someone with an HP printer, but I'm not too bothered about banding
    when printing graphics on my black and white laser printer which I
    bought for text output.

    Rowland.

    --
    Remove the animal for email address:
    Sorry - the spam got to me
    http://www.mag-uk.org http://www.bmf.co.uk
    UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
    Rowland McDonnell, Dec 19, 2006
    #19
  20. Peter Ceresole <> wrote:

    > Chris Ridd <> wrote:

    [snip]

    > > How HP have fallen...

    >
    > Sad if true, but that's not my experience.


    I could show you the manuals for my 1970s HP32E and my decade-younger
    HP32S (equivalent calculators). If that doesn't convince you, maybe a
    comparison between the actual calculators might? The older calculator
    is superior in all respects (keyboard, display, response time, manuals,
    you name it) - except that the newer one's programmable and runs for
    about five years on one set of tiny button cells.

    And that was back in the late 1980s. They've just got worse and worse.

    I've had nothing but trouble with my HP DJ 970cxi due to crappy software
    from HP, and then the duplex unit packed up.

    > The whingers were right about one thing- there's no USB lead included.
    > But I'm finding that increasingly common as the bottom line rules more
    > and more. It's the kind of decision for which those guys on Wall Street
    > earn their ten million dollar bonuses.
    >
    > The included software, by the way, Just Works in 10.2.8 and 10.3.9.


    The included software from HP Just Does Not Work in 10.1.x, 10.2.x,
    10.3.x, and 10.4.x.

    HP knows that it doesn't, knows that the included software breaks the OS
    badly and has to be uninstalled by hand since the uninstaller doesn't
    work, and is also quite unabashed that it's shipping hardware with
    broken software without mentioning the problems *anywhere* public, and
    also telling people to install that broken software in the installation
    instructions, which I followed.

    I've got the emails from the exchange with HP technical support if you
    don't believe me.

    Since I sorted out the problems caused by installing HP's broken
    software by following the HP installation instructions on the HP
    installer CD, the printer's been okay, except for a tendency to `drop
    off the network' occasionally, which can be fixed with a reset of the
    printer's network card - finding out how to do that wasn't trivial.

    I read HP documentation rather more closely, and it seems that HP's line
    on `Bonjour' is that HP will `give it its best shot, but don't expect it
    to work reliably'.

    I think this another case of the strange parallel universe effect that
    I've noticed before - problems that I get consistently seem not to exist
    in the universe that Peter inhabits.

    Rowland.


    --
    Remove the animal for email address:
    Sorry - the spam got to me
    http://www.mag-uk.org http://www.bmf.co.uk
    UK biker? Join MAG and the BMF and stop the Eurocrats banning biking
    Rowland McDonnell, Dec 19, 2006
    #20

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