Uninet LEXMARK C520 Installation and maintenance instructions

LEXMARK™C520 •522 •524

530 •532 •534 •734 •736 •738

TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

LEXMARK™C520 TONER CARTRIDGE

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LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

REMANUFACTURING THE LEXMARK C520/522/524

530/532/534/734/736/738 TONER CARTRIDGES

By Javier Gonzalez and the Technical Staff at UniNet

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THERE ARE THREE VERSIONS OF THIS CARTRIDGE

1. Starter cartridge: meant for 1.5k yields (C520/530 series only).

2. Standard cartridge: meant for 3k through 6k yields.

3. Extra HY cartridge: meant for 7k through 12k yields.

Using a starter cartridge as a standard cartridge may cause a premature toner low message.

STARTER CARTRIDGE STANDARD CARTRIDGE EXTRA HIGH YIELD CARTRIDGE

Depending on the cartridge, it will have a functional actuator. The gears need to be aligned with their designated marking (arrow).

Not aligning the gear train can also cause a premature toner low message.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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CARTRIDGE CONTACT SIDE CARTRIDGE GEAR SIDE

CARTRIDGE DISASSEMBLY

1. Use a hook tool to remove the locking ring from the drive gear shown.

Remove the washer and gear as shown.

2. Remove the developer roller gear shown by first rotating the gear clock wise until it stops.

Wedge a small flathead screwdriver between the gear and the roller support to push the gear out.

The gear has a minimal amount of pressure so there is no risk of using this technique.

3. Carefully remove the supply roller gear shown.

Use extreme caution as it is very fragile and might break if removed forcefully.

Continue by removing the three screws and smartchip holder as shown to access the drive train gears inside.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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4. Drive train removed. 5. Remove the three screws that hold the developer roller

support plate in place.

6. Support plate removed. 7. Remove the two screws from the smaller developer roller

support plate shown on the opposite (contact) side.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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8. Remove the support plate along with its rear contact. 9. Remove the developer roller.

10. Remove the four screws shown that hold the doctor blade

in place. Note the location of the doctor bar. It must be

positioned in the same manner for reassembly.

11. Remove the doctor blade contact which runs along the

side of the cartridge.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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12. Remove the doctor blade. Be careful not to lose the doctor bar screw nuts. With the screws removed and the nuts not

securely fastened, they can easily become misplaced with any movement of the cartridge. Clean the hopper thoroughly using

compressed air and refill through the opening shown with the appropriate amount of toner.

REPLACING THE CHIP

13. Pry the chip loose from its adhesive backing.

14. Install the new chip in the exact manner shown.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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15. NOTE: Since the aftermarket chip has a larger

microprocessor than the OEM, we recommend adjusting the

chip contacts to create an S-shaped design to avoid any

interference with the processor.

CARTRIDGE ASSEMBLY

16. Carefully reinstall the supply roller gear.

17. Adjust the drive gear locking ring to prevent the drive gear from slipping off.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

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18. Wipe off any excess toner from the doctor blade.

If crusting is present you can use isopropyl alcohol to remove the residue.

Avoid scratching the coating on the doctor blade with your nail or other sharp objects.

LEXMARK C520 •522 •524 •530 •534 •734 •736 •738 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS

UniNet Imaging does not warrant downloaded information. Unauthorized sale, reproduction or distribution of this article is prohibited. For additional support, please contact [email protected]

www.uninetimaging.com