Toner News Mobile › Forums › Latest Industry News › *NEWS*HOW TO REMAN THE LEXMARK 17G0060
- This topic has 0 replies, 1 voice, and was last updated 9 years, 8 months ago by Anonymous.
-
AuthorPosts
-
AnonymousInactive
The Lexmark 17G0060 cartridge is advertised as a “High Resolution Tri-color”
cartridge. The 192 nozzles (64 per color) are created in the non-metallic nozzle
plate using laser micromachining techniques. The bonding of the nozzle plate to
the actual printhead chip is very secure, and usually presents no problems to
the remanufacturer.The cartridge design follows the basic standards for
tri-color cartridges, with three separate chambers for cyan, magenta, and
yellow, each tightly stuffed with foam (Photo 1).
At the base of each chamber is a filter screen which is a channel to feed
ink to the printhead. (Photo 2)
As with all inkjet recycling, the best results are obtained from the best
quality virgins, so to avoid wasting time and resources on any cartridge that
will obviously never function, a quick visual exam is usually wise. (Photo
3)
This can be integrated into the handling during electrical testing. (Photo
4)
Useable cartridges are then loading into the pre-soak bins. The “60” contains
dye based inks. These inks, even when dried, can be re-hydrated by soaking in
purified water for a few hours. Keep the water out from behind the flex circuit
by standing the cartridges on thoroughly moist toweling, rather than just a pool
of water. (Photos 5 & 6)
Access to the interior of the cartridges is gained by removal of the colored
tops. A top removal tool may be used, or a sturdy razor knife can gently pry the
top loose at the corners until the top breaks free. Unfortunately, the top of
the “60” does not pop off as readily as its predecessor, the 12A1980. The “60”
tops are prone to break into pieces, so some “clean-up” of the remaining foam
retainer may be required to allow a good fit of the replacement top (to be
applied later). The clear foam retainer is allowed to remain in position. It
will not be removed or replaced. (Photos 7 – 9)
Depending on the estimated age and condition of the virgins, it may be
prudent to utilize the optional step of atomization cleaning to help open the
nozzles. This will maximize the potential for good print test results.
Atomization cleaning directs an extremely fine, warmed stream of atomized,
purified water droplets into the nozzles, which removes any coating of dried ink
from the nozzles and resistor chambers. This process takes approximately 10
seconds per cartridge. (Photo 10)
The most intensive cleaning is accomplished by overflow flush cleaning.
The fluid used is only purified water, heated to approximately 43 degrees C (110
degrees F). In a six-minute cycle, with needles penetrated to within 2 mm of the
filter screens, virtually all ink will be removed from the cartridges by the
flooding action. (Photos 11 – 15)
The result is an ink-free, although thoroughly water-soaked, cartridge. The
only traces of color anywhere in the cartridge will be the permanent staining in
the foams. (Photo 16)
The first stage in removal of this water is to centrifuge the cartridges.
They are positioned in the centrifuge with the nozzles inward, to allow the
centrifugal force to sling the water out through the foam retainer. The
four-minute cycle leaves only a fraction of a gram of water per foam. (Photos 17
&18)
A side effect of centrifuging the cartridges in this orientation may be the
movement of the foams away from the filter screens. In any foam type cartridge,
this is the “Kiss of Death”, and must be addressed. The answer is to turn the
cartridges so the nozzles are now toward the outside, and centrifuge again. This
shorter cycle, about 2-3 minutes, gently moves any errant foams back to the
full-contact position with the filter screens. There is now virtually no water
to exit through the nozzles, so there is no undue stress on the nozzle plate
caused by this step.The cartridges may now be filled with the
appropriate inks. A result of the flushing and centrifuging is the changing of
the foam qualities in respect to its absorption of liquid. The water retained in
the foams, although only 0.2-0.3 grams per foam, changes the natural propensity
of these foams to repel liquid, into foams that now are receptive to liquid
absorption. This newly acquired “hydrophilic” condition of the foams means that
the ink fill amount should be close to the capacity of the foams. Otherwise, the
ink will surely migrate upwards after the fill, and saturate any unfilled region
at the top of the foam.If this unfilled foam region is relatively small,
the ink migration will not affect the cartridge’s ability to function in the
printer. Filling only the lower half of the foam, for example, will result in
emptying all the ink from the printhead region as the inks are slowly pulled
upwards. This natural ink migration in nearly full foams still allows for
expansion of the ink load during changes in temperature and atmospheric
pressure, allowing the foams to function as intended by the OEM. Fill amount may
therefore be approximately 9-10 ml per color.Fill needles should be as
close to the filters as possible, and the ink should be released into the foams
slowly. Vacuum filling offers definite advantages over atmospheric pressure
filling. In vacuum filling, the inks will be drawn into the printhead during the
fill, instead of trying to displace the air in this region. Vacuum filling
requires the nozzles be sealed during the operation, to prevent the in-rush of
air during return to normal pressure. (Photos 19 & 20) The two preferred
methods of sealing the nozzles are either with blue tape or a cartridge clip,
although both methods simultaneously is the best.
After allowing the filled cartridges to stand and stabilize for a few hours,
they can be print tested. A complete three color “footprint” after unclipping is
always a good sign (Photo 21).
This indicates the ink has penetrated the printhead and fill channels during
the filling process. The cartridges may be print tested without the colored cap.
(Photos 22 & 23)
Cartridges that print successfully need a replacement top. Ultrasonic welding
is the best and fastest method of attaching the top, which is why this is the
preferred method employed by the OEM’s. An acceptable alternate method is to use
a suitable plastic adhesive or hot melt glue. (Photo 24)The cartridge exterior may be cleaned at this point, and the appropriate
replacement labels may be applied. The nozzles must be protected during these
operations, however, to prevent fouling.
Blue tape adheres well only to
extremely clean, dry nozzle plates. Carefully prep the plates, allow to dry, and
apply the tape. (Photos 25Final packaging gives the cartridges a professional appearance. Date coding
of some type is always recommended. (Photo 26 and 27)
LIST OF TOOLS/MATERIALS:
Electrical tester
Bin, for
soaking
Purified water
Toweling
Lexmark top removal tool, or a sturdy
utility knife
Atomization machine
Flush-cleaning
machine
Centrifuge
Ink filling machine
Print tester, or OEM
printer
Replacement tops
Ultrasonic welder, plastic adhesive, or hot glue
gun
Nozzle preparation machine
Taping machine
Packaging materials
-
AuthorMarch 29, 2005 at 10:30 AM
- You must be logged in to reply to this topic.