Epson Expression 1640 XL

  • Thread starter Thread starter Nick Wedd
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Nick Wedd

I have an Epson Expression 1640 XL scanner. Its innards need cleaning.
But I cannot figure out how to open it up, get the glass off, or
whatever it is I need to do.

I have been variously advised "You can't open it up, the innards are not
accessible to the user", and "you just take the top off and wipe the
optics _very_ carefully".

Can someone please help?

Nick
 
Nick Wedd said:
I have an Epson Expression 1640 XL scanner. Its innards need cleaning.
But I cannot figure out how to open it up, get the glass off, or
whatever it is I need to do.

I have been variously advised "You can't open it up, the innards are not
accessible to the user", and "you just take the top off and wipe the
optics _very_ carefully".

Can someone please help?

Nick
Click to expand...

First thing - remove the lid (it just lifts off).

Now, looking from the front of the scanner (i.e. the long edge where the
power and reset buttons are), on top on either side of the glass at the
bottom left and right hand corners, you will a circle of approx. 12mm
diameter - these are in fact small plastic caps which conceal screws. Lift
each cap carefully using a scalpel or similar, and remove the screws. At the
back of the scanner next to the hinge mounts for the lid are two more
screws - not concealed this time - remove these. Then, remove the
transportation lock knob at the left hand side of the scanner (it just pulls
off). The outer lid can then be removed.

Once inside, you can then remove the glass by removing all the screws
holding it, and you then have access to the innerds.

Personally, I have never gone beyond this point, so from here on - you're on
your own. All I have ever done is used a blower to remove specks of dist
from the mirror (which show up as fine lines in the scan) and replaced the
glass which got scratched.

Good luck!
 
John said:
First thing - remove the lid (it just lifts off).

Now, looking from the front of the scanner (i.e. the long edge where the
power and reset buttons are), on top on either side of the glass at the
bottom left and right hand corners, you will a circle of approx. 12mm
diameter - these are in fact small plastic caps which conceal screws. Lift
each cap carefully using a scalpel or similar, and remove the screws. At the
back of the scanner next to the hinge mounts for the lid are two more
screws - not concealed this time - remove these. Then, remove the
transportation lock knob at the left hand side of the scanner (it just pulls
off). The outer lid can then be removed.

Once inside, you can then remove the glass by removing all the screws
holding it, and you then have access to the innerds.
Click to expand...

Thanks for your advice. The hard part was getting the transportation
lock knob off. I had to lever it off so hard that when it eventually
came off, I skinned my knuckles on something, and had to stop for a
while rather than risk getting blood inside the scanner. Then when I
resumed, I realised that the mirror etc. were all tucked away in under
the left end of the case, where I couldn't get at them anyway. So I put
it all back together again, and planned to work on a way of luring the
mechanism out from its lair _before_ taking the top off.
Personally, I have never gone beyond this point, so from here on - you're on
your own. All I have ever done is used a blower to remove specks of dist
from the mirror (which show up as fine lines in the scan) and replaced the
glass which got scratched.
Click to expand...

Having put it back together, I checked that it was still working. It
was. Moreover, the fault I was seeking to fix - longitudinal streaks of
colour in the images, possibly caused by diffraction from dust - had
cured itself.

So, all in all, I am most grateful for your help!

Nick
 
Nick Wedd said:
Thanks for your advice. The hard part was getting the transportation
lock knob off. I had to lever it off so hard that when it eventually
came off, I skinned my knuckles on something, and had to stop for a
while rather than risk getting blood inside the scanner.
Click to expand...

Ouch! :-)
Then when I resumed, I realised that the mirror etc. were all tucked away in under
the left end of the case, where I couldn't get at them anyway. So I put
it all back together again, and planned to work on a way of luring the
mechanism out from its lair _before_ taking the top off.
Click to expand...

Simply rotate by hand the wheel which drives the belt - the scanner head
will emerge without protest.
Having put it back together, I checked that it was still working. It
was. Moreover, the fault I was seeking to fix - longitudinal streaks of
colour in the images, possibly caused by diffraction from dust - had
cured itself.
Click to expand...

They will probably come back. I have had to blow them away several times -
heaven knows where they come from. The very first time it happened, I phoned
up Epson and described the fault (a thin green line down the length of the
scan.) They replied - "Oh, sounds like the CCD has gone - send it back to
us" (it was still under guarantee). It was duly packaged up and sent back.
Of course, by the time it had been bumped around in carriage, the particle
had dislodged itself and they found it worked perfectly and sent it back.
So, all in all, I am most grateful for your help!

Nick
Click to expand...

No problem.
 
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