Remanufacturing the Samsung CLP-620/670 Toner Cartridge
- By Javier Gonzalez
- Apr 01, 2011
First released in March 2010, the Samsung CLP-620-based printers are built on a 21/25 ppm (color and monochrome, respectively) engine with a maximum resolution of 9,400 by 600 dpi. The cartridges do not have drum covers but come new with a piece of heavy paper taped around the cartridge.
Javier Gonzalez will instruct "Remanufacturing the Dell 3110/3130," "Remanufacturing the Lexmark C/X-734/736/738," "Remanufacturing the Samsung CLP-770" and "Remanufacturing the Brother HL-3040" in Spanish at World Expo 2011. Register today.
There are both low-yield and high-yield cartridges available for these machines.
A list of the cartridges as well as their list pricing is as follows:
MLT-K508S 2,500 pages $89.99*
MLT-C508S 2,000 pages $98.99*
MLT-M508S 2,000 pages $98.99*
MLT-Y508S 2,000 pages $98.99*
MLT-K508L 5,000 pages $119.99*
MLT-C508L 4,000 pages $139.99*
MLT-M508L 4,000 pages $139.99*
MLT-Y508L 4,000 pages $139.99*
Printers based on the Samsung CLP-620 engine:
CLP-620ND
CLP-670ND
CLX-6220FX
CLX-6250FX
Required tools
Toner-approved vacuum
Small common screwdriver
Phillips-head screwdriver
Jewelers screwdriver set
Flush-cutting wire cutters
Required supplies
New color toner for use in a Samsung CLP-620/670 cartridge
New replacement chip (LY, HY)
Conductive grease
99 percent isopropyl alcohol
Drum lubricating powder
Figure 1 shows a front view of the cartridge, and Figure 2 shows a bottom view. Note: All cartridges are color-coded on the bottom to identify the color.
1. Remove the spring using your preferred hook tool. See Figures 3 and 4.
2. Remove the long pin (gear side) by first prying the pin out using a rigid hook tool or a small jewelers screwdriver. Once you have enough surface area, grasp the pin using a set of pliers. See Figures 5 and 6.
3. Remove the short pin (contact side) by first prying the pin out using a rigid hook tool or a small jewelers screwdriver. Once you have enough surface area, grasp the pin using a set of pliers. See Figures 7 and 8.
4. Separate the two halves. See Figure 9.
Drum section:
5. Remove the e-ring from the drum axle by prying it off. Be careful, as it can spring out of the axle. We suggest that you place your hand over it to keep it from shooting out. See Figure 10.
6. Align the drum-locking pin with the cartridge cavity (as shown). This will allow the drum axle to slide out. See Figure 11.
7. Pull the drum axle completely out. You may need to jiggle the axle, as it tends to jam on the drum contact. See Figure 12.
8. Remove the drum and set aside. See Figure 13.
9. Remove the PCR roller. See Figure 14.
10. Remove the PCR cleaning roller (foam). See Figure 15.
11. Remove the two screws and wiper blade. See Figures 16a and 16b.
12. The wiper blade is pressured against the foam seal and the alignment tabs. Using a small jewelers screwdriver, pry up the wiper blade from the edge by the foam seal over the alignment tabs. The blade should come off fairly easily. Clean out all remaining toner from the waste section. See Figure 17.
13. Coat the wiper blade with your preferred lubricant and install it in the cartridges. Press the blade down firmly to seat it. Install the two screws. See Figure 18.
14. Install the PCR cleaning roller (foam) and PCR roller. Make sure that the contact plate is touching the end of the PCR by inserting the contact side first. See Figure 19.
15. If you plan on reusing the drum that came with the cartridge, make sure the drum’s inner contact is in a position where it can contact the drum axle. If this contact is not contacting the drum axle, the prints will come out blank for the corresponding color. See Figure 20.
16. Install the metal bushing. Make sure both the bushings on each side are in their respective slots. See Figures 21a, 21b and 21c.
17. Install the e-ring using a pair of needle-nose pliers. Set the drum unit aside. See Figure 22.
Supply hopper section:
18. Remove the two screws on the metal gear train cover. See Figures 23 and 24.
19. Remove the gears. See Figure 25.
20. Remove the inner plastic gear plate and screw. See Figures 26 and 27.
21. Remove the two remaining screws, as they can fall off during the cleaning phase. See Figure 28.
22. Remove the toner charge roller. See Figure 29.
23. Remove the two screws from the contact end plate. See Figures 30 and 31.
24. Remove the developer roller bushings. Note: Make sure you remove the supply roller bearing. See Figures 32a and 32b.
25. Remove the developer roller. See Figure 33.
26. Removing the doctor blade is recommended. First, run a small screwdriver between the doctor blade and cartridge rail. This will reveal the gap between the doctor blade and cartridge. See Figure 34.
27. Using a utility blade, cut the sealing tape. This will prevent any warps on the doctor blade caused by removal. See Figure 35.
28. Remove the two screws and doctor blade. See Figures 36a and 36b.
29. Remove the fill plug and clean out all remaining toner. See Figure 37.
30. Install the cleaned doctor blade. To prevent any seepage, use an adhesive tape of your preference. See Figure 38.
31. Install the developer roller. Note: When installing the developer roller bushings, make sure the supply roller bearing is in place. See Figure 39.
32. Install the contact end plate and screws. See Figure 40.
33. Install the cleaned toner charge roller. It can be cleaned with isopropyl alcohol. See Figure 41.
34. Install the two gears as shown. See Figure 42.
35. Install the inner support plate and screw. Install the gear train and metal cover as shown. See Figures 43 and 44.
36. Fill the cartridge with the appropriate amount of toner for the specified yield. See Figure 45.
Replacing the smart chip:
37. Using wire cutters, cut the plastic that encloses the chip. Using a hot glue gun, add a couple of drops of glue on the ends and install the chip. The glue will keep it in place. See Figures 46a and 46b.
38. Place the two cartridge halves together. Install the two metal hinge pins. The long pin goes to the drive gear side. See Figure 47.
39. Install the two springs across the two halves. Place the OEM heavy paper around the cartridge to protect the drum. If it’s not available, a piece can easily be cut from a shirt-size gift box. See Figures 48a and 48b.
Repetitive defect chart:
Upper fuser belt: 125.7 mm
Fuser pressure roller: 91 mm
OPC drum: 75.4 mm
Color DVR roller: 36.1 mm
Black DVR roller: 32.6 mm
Color supply roller: 48.2 mm
Black supply roller: 43.4 mm
Transfer roller: 44 mm
Printer error messages:
All the error codes are self-explanatory, so there is no need to explain them here.
Contact Javier Gonzalez at www.uninetimaging.com.
This article originally appeared in the April 2011 issue of Recharger.
About the Author
Javier Gonzalez is the R&D Manager for UniNet Imaging Inc.'s U.S. headquarters in the Los Angeles area, and has been with the company for more than eight years. Prior to his promotion to R&D Manager, Gonzalez was a senior technical support associate and R&D technician. He is a contributing writer of cartridge remanufacturing and technical articles and regularly teaches at technical seminars, road shows, and industry events worldwide.