First released in October 2007, Samsung ML-1630, ML-1631,
ML-1630S and SCX-4500 printers are based on one of Samsung’s newest
engines. The ML-1630 series runs at 17 ppm with a maximum resolution of
600 dpi. The design is new for Samsung, and all other printer
manufacturers for that matter. They are pushing its sleek design as a
nice office addition not only as a printer but ascetically as well. One
interesting thing is that the fuser uses a two-lamp system. Most
machines these days use a film and ceramic heater to fuse the toner.
This system is more like the HP 8100.
These cartridges do not
have a drum cover and come new with a piece of heavy paper taped around
the cartridge. See Figure 1. All new cartridges opened so far have shown
some toner leakage on the drum that would have shown on any prints for
at least a few pages.
The standard cartridge (Samsung part No.
ML-D1630A) comes new with 40 grams of toner, and is rated for 2,000
pages at 5 percent coverage. The starter cartridge, however, is rated
for only 1,000 pages. As with pretty much all cartridges these days, the
cartridge has a chip, and it has to be replaced.
While this
system uses all standard monochrome technology, the printer itself is
extremely small and compact. See Figure 2 for a complete layout of the
entire printer. I have not taken a machine apart yet, and I hope I never
have to!
Cartridge
troubleshooting as well as common error messages will be listed at the
end of the instructions.
1) Toner-approved vacuum 2) Phillips-head
screwdriver 3) Small common screwdriver 4) Needle-nose
pliers
Remanufacturing instructions
1)
Place the cartridge with the handle up, facing toward you. Remove the
three screws from the right-side end cap. See Figure 3.
2) On the left-side end cap, remove the three screws. See Figure 4.
3)
While still on the left end cap, locate the top and bottom tabs. Press
in on these tabs, and remove the end cap. See Figures 5, 6 and 7.
4)
On the right-side end cap, press in on the top tab and remove the end
cap. See Figures 8 and 9. The right side does not have a bottom tab, but
it fits on very tightly and must be carefully pried off.
5) Separate the halves slightly, and lift off the middle top
cover/PCR assembly. See Figures 10 and 11.
6) Pull the metal drum axle from the toner hopper clips on both
sides. Remove the drum/waste assembly. See Figures 12, 13 and 14.
7) On the top cover, lift up on the PCR. Remove the PCR from the
assembly. See Figure 15.
8) Clean the PCR with your normal PCR cleaner.
WARNING:
Do not clean the OEM PCR with alcohol, as this will remove the
conductive coating from the roller. If the PCR is aftermarket, follow
the cleaning methods recommended by the manufacturer. If the PCR is OEM,
we recommend it be cleaned with your standard PCR cleaner.
9)
Place a small amount of conductive grease in each of the PCR holders,
and replace the PCR. See Figures 16 and 17.
10) Remove the drum axle from the clips on both sides of the waste
assembly. See Figures 18 and 19.
11)
Remove the two screws from the doctor blade and remove the blade. See
Figure 20.
12) Clean out all the waste toner from the hopper. Make sure the foam
seals are clean. See Figure 21.
13) Install the cleaned or new doctor blade and two screws. See Figure
22.
14) The gear side of the drum axle shaft has conductive grease on it.
Regardless if you are replacing the drum or not, clean off the old
grease, and replace with new. See Figure 23.
15) Install the drum/axle into the clips of the waste toner
assembly. See Figure 24.
16) Carefully pry out the fill plug on the toner hopper, and dump out
any remaining toner. The fill plug can be difficult to remove. Take a
small common screwdriver and work it around the edge lifting slightly
until it comes loose. See Figure 25.
17)
On the fill plug side of the hopper, locate the double plastic bushing
and contact spring. See Figure 26.
18) Take the long tail of the spring and move it off the developer
roller shaft so it sits against the bushing. See Figure 27.
19) Press in on the bushing tab, and remove the bushing. Be careful
not to lose the spring! See Figures 28 and 29.
20) Slide the developer roller over, and lift out to remove.
See Figure 30.
21) Remove the two screws from the doctor blade, remove the blade. See
Figure 31.
22) Clean out all the remaining toner from the hopper.
23) Make
sure the doctor blade sealing foam and the developer rollers’ seals are
clean and intact. See Figure 32.
24) Clean the doctor blade edge so there is no evidence of buildup
along the edge. If any buildup exists, the cartridge will streak. This
blade can be cleaned with your preferred Samsung doctor blade cleaner.
See Figure 33.
25) Install the doctor blade and two screws. See Figure 34.
26) Clean the developer roller with a dedicated developer roller
cleaner, and replace into the hopper. Install the gear-side first. See
Figure 35.
27) While holding the developer roller contact spring back, install the
double bushing. Make sure it snaps into place. See Figures 36 and 37.
28) Set the long tail of the contact spring so it touches the
shaft of the developer roller. See Figure 38.
29) Fill the hopper with 40 grams of ML-1630 toner, replace the fill
plug, and check for leaks. See Figure 39.
30) Snap the drum axle shaft into both clips on the toner hopper. See
Figure 40.
31) Slide the middle top cover/PCR assembly into place. Make
sure the two middle tabs fit under the edge of the waste hopper. See
Figures 41 and 42.
32) Take the right-side end cap and align the drum axle keyed end so
it will fit into the keyed slot of the end cap. Snap the end cap into
place. See Figures 43 and 44.
33) Install the three screws into the end cap. See Figure 45.
34) Clean the contacts on the left-side end cap, and replace the
conductive grease. Snap the end cap into place, and replace the three
screws. See Figures 46 and 47.
35) To replace the chip, drill out the two plastic rivets with a
small drill, remove the cover and chip. I used a 5/64-inch bit. See
Figures 48 and 49.
36) Install the new chip and cover, and insert two small screws that
correspond to the holes drilled to hold everything in place. See Figures
50 and 51.
Common
Cartridge Problems
Repetitive defect chart:
Upper
heat roller: 77.09 millimeters
Lower pressure roller:
75.36 millimeters
OPC drum: 62.80 millimeters
Transfer
roller: 47.10 millimeters
Supply Roller: 46.90
millimeters
Developer roller: 35.20 millimeters
PCR:
26.70 millimeters
Printer Error Messages:
!!T1
Toner exhausted
!!T2 Invalid toner (Cartridge has been refilled
but the chip has not been replaced)
!!T3 Cartridge not
installed correctly or missing
!!T4 Non-genuine toner, cartridge
not compatible with this machine. (Too soon yet to see what causes
this)
!!CO Top cover open
!!EE Internal error
!!JO
Paper feed jam rear of machine
!!J1 Paper jam rear of machine
!!J2
Paper jam exit area
Mike Josiah is technical director
at Summit Technologies, a division of UniNet Imaging Inc., a global
distributor of toner, OPC drums, wiper blades and other supplies. Josiah
has been with the company since 1987. He and his technical support team
regularly contribute articles and teach seminars at association
meetings and trade shows. Contact Mike Josiah at 631-218-8376 or
mjosiah@uninetimaging.com.
First released in October 2007, Samsung ML-1630, ML-1631,
ML-1630S and SCX-4500 printers are based on one of Samsung’s newest
engines. The ML-1630 series runs at 17 ppm with a maximum resolution of
600 dpi. The design is new for Samsung, and all other printer
manufacturers for that matter. They are pushing its sleek design as a
nice office addition not only as a printer but ascetically as well. One
interesting thing is that the fuser uses a two-lamp system. Most
machines these days use a film and ceramic heater to fuse the toner.
This system is more like the HP 8100.
