Refilling method for EP-27 cartridge for printers and all-in-one printer CANON
The article describes the method of refilling the EP-27 cartridge, which is used in a number of popular printers and all-in-one printer from CANON. The author gives the sequence of refilling the cartridge and some features of this operation.
Warning: the author is not responsible for the possible negative consequences of self-refilling of the cartridge, therefore, if you are NOT confident in your abilities, contact a specialist.
The EP-27 cartridge is used in a line of laser printers and all-in-one printers for home and small office manufactured by CANON. This line includes models “LBP3200”, “MF3110”, “MF3228”, “MF5630”, “MF5650”, “MF5730”, “MF5750”, “MF5770”. Despite the fact that the method of refilling the EP-27 cartridge has a number of nuances that appear during disassembly, with Careful work, there are no special difficulties when refilling this type of cartridges, and the print quality on the Remanufactured cartridge is good.
To carry out refueling work, an appropriate set of tools and consumables is required. To refill the EP-27 cartridge, a compatible toner is used, which is used to refill the HP LJ 1000/1200/1300 printers. The drum, primary charge roller, cleaning blade (squeegee), magnetic roller used in the EP-27 cartridge are similar to those used in the HP LJ 1000/1200/1300 printer cartridges and are interchangeable. It is difficult to give any unambiguous recommendations on choosing a toner or imaging drums manufacturer, for example, the author uses toner from AQC (USA), which can be treated both in the packaging from the manufacturer and third-party companies, for example Profiline. The packaging of the toner can vary. From cans with a capacity of 150 g (the norm for refilling cartridges) to 1 kg or more.
To perform work on refueling and reconditioning the EP-27 cartridge, the following set of tools is required (Fig. 1):
- Crosshead screwdriver.
- Small platypuses or side cutters.
- Lint-free napkin.
- Ejector for pins.
- Respirator (optional, but desirable).
- Vacuum cleaner for toner.
- Paper that serves as a bedding on the desk.
- Waste Toner Bag.
- Talcum powder for squeegee and imaging drum (optional).
- Scalpel or narrow sharp knife.
- Micro drill with a set of drills or drills.
- Narrow flat screwdriver.
- U-shaped bracket for fixing the magnetic shaft when refueling (optional).
- Primary charge roller extraction hook (optional).
The ejector for pins for the EP-27 cartridge is an L-shaped rod with a handle (Fig. 2). It can be made from a screwdriver or awl with a blade length of about 120 mm, bent at a distance of 10-15 mm from the end at an angle. The short part of the ejector should be cylindrical with a diameter of 2 2.5 mm. Also, this pusher can be made from any metal rod of a suitable diameter with the required rigidity (the device does not have to deform during operation).
An ordinary funnel with an outlet of a suitable diameter can be used as a funnel. However, in practice, it is more convenient to use a special device made of a lid from a can with applied toner and a fragment of a disposable medical syringe. The manufacture of this device is quite simple and was considered in . The advantage of using this device is that less toner gets into the air during refueling and, accordingly, into the airway of the refueling agent. Remember, inhalation of air containing large amounts of toner is hazardous to health, therefore it is recommended to use a respirator when refueling.
The U-shaped bracket (Fig. 3), used in the threading process to fix the magnetic shaft, is made of soft wire (aluminum, copper, etc.) of a suitable diameter (2.5. 3 mm). The length of the pins is 15-20 mm, the distance between the centers of the pins. 34 mm.
The hook for extracting the primary charge roller (Fig. 4) is made of wire 120–140 mm long, about 2 mm in diameter, with a bend radius of 6.5. 7.5 mm, length of the folded part. 7.10 mm. For ease of use, the latter can be equipped with a handle made of scrap materials.
The scalpel must be sharply sharpened. The scalpel can be replaced with a knife. It is shaped like a scalpel and sharpened sharply.
As a vacuum cleaner for cleaning cartridges and collecting toner, it is advisable to use a specialized vacuum cleaner for servicing office equipment, such as 3M or Atrix. Remember, filters in a household vacuum cleaner DO NOT trap toner particles, so when they are used to clean the cartridge, the toner will pass through the filter and be thrown indoors. If toner spills on the manifold of a vacuum cleaner motor, it may be damaged.
The use of household vacuum cleaners is permissible only when installing an additional filter, which can be a car air filter or a filter from a specialized vacuum cleaner. An additional filter is installed between the nozzle and the standard filter of the vacuum cleaner (Fig. 5).
The extra filter should be placed in an airtight container or container, for example. A plastic tank, bucket or plastic container from acrylic paint (bucket) of suitable size with a sealed lid, in which holes are made and nozzles for connecting the hose of a household vacuum cleaner and a hose from the nozzle are fixed. Hot glue or sealant is used to seal the connection points of the branch pipes. The inlet branch pipe (hose connection from the nozzle) is located in the container on the outside of the filter element, the outlet (vacuum cleaner hose connection) on the inside. The inlet hose connection can be placed on the tank body in any convenient place.
The car air filter is fixed to the tank lid with three screws or studs, using a circle whose diameter is equal to the outer diameter of the filter used (Fig. 6). The choice of stud length depends on the height of the filter, the thickness of the fixing circle and the container lid. The pins are installed on the inner diameter of the filter after 120 degrees. The circle that fixes the air filter can be made of any material (metal, plastic, plywood, etc.) that provides the required rigidity of the fastening. To seal the inner cavity of the filter, a sealant is used, which is applied to the end surfaces of the filter before installing it.
As an inlet pipe, use a pipe from a vacuum cleaner (in the absence. Any adapter that ensures tightness when connecting a hose from a suction nozzle), and for the outlet. A modified attachment from an old vacuum cleaner, for example, a round brush. Refinement consists in removing the bristles and drilling holes for attachment to the container lid. Fastening is done with screws (self-tapping screws) or screws, depending on what material the cover is made of. Hot glue or sealant is used to seal the cracks between the nozzle and the lid.
The author used the lower part of the body (dust collector) from the “Audru” vacuum cleaner as a container for the filter, on which a suction pipe is installed, as well as latches for fastening and a rubber seal. An air filter used in VAZ 2101-07 cars was used as a filter element. Above, instead of a cover, a circle of PCB is installed, which is pressed against the body by regular latches through a rubber seal.
The fastening of the filter element and the nozzle for connecting the vacuum cleaner is made similarly to the above. To connect the vacuum cleaner to the filter and the suction nozzle, two standard vacuum cleaner hoses are used.
When using household vacuum cleaners to clean the cartridges, it is recommended to use a nozzle from a 3M vacuum cleaner or similar, made by yourself.
Before refilling, it is advisable to install the refillable cartridge in the printer and print a test page that will help determine the required amount of work to restore the cartridge. Before printing test pages, vibrate the remaining toner in the cartridge hopper.
Cartridge refilling method
Place the drum unit towards you.
Slightly open the shutter and, Using a flat screwdriver (Fig. 7), remove the shutters from the groove in the cartridge housing from the side of the return spring (left side of the cartridge).
Raise the left side of the shutter while simultaneously removing it from the right groove of the cartridge body (Fig. 8). Then remove the curtain.
Operation warnings 2.
Care should be taken when removing the wasp from the slot to avoid axle breakage. The force is applied to the curtains as close as possible to the landing site in the body. When removing the shutter, pay attention to the location of the return spring for its subsequent, correct installation in place when assembling the cartridge.
Separate the cartridge in two halves, for which: 4.1. On the left, under the shutter on the cartridge case, they find a recess, and the case. Ledge. To push out the pins, pre-drill the plastic of the body to the base of the pins: on the left. In place of the deepening (Fig. 9), and on the right. Where is the ledge (Fig. 10). After drilling the holes with a scalpel, gently lengthen the groove to further remove the pins using a pusher, and then remove the burrs from the plastic of the body near the grooves.
Note for operation 4.1.
The grooves for pushing out the pins can be made in various ways:
A) melt with a soldering iron, but at the same time there is a danger of damage to the mounting holes of the pins when heated, as well as melting of the plastic around the groove.
B) cut with a knife or a narrow screwdriver with a sharpened blade, but in this case it takes more time and effort to release the base of the pins.
There is another way to separate the body into two halves. Hammer the pins into the cartridge using a hammer and a metal rod slightly smaller than the diameter of the pin. The rod used must be sufficiently rigid. Before knocking out the pins, it is necessary to release the bases of the pin on the right, since when this pin is knocked out, it comes out obliquely (the metal base of the cleaning blade interferes) and deforms the seat in the housing. To knock out the left pin requires enough force to break through the inner baffle. Impact may damage the seating of the pin. When hammered, the right pin comes out of the housing. Through the made groove, and the left one, broke through the partition, remains in the case and is removed after the cartridge case is separated into two parts.
To disconnect the cartridge body, the author chose the method of releasing the base of the pins with a micro drill with a drill of a suitable diameter, followed by using a scalpel and pushing the pins out of the body, as the most rational way to separate the cartridge into two halves.
4.2. Insert the pusher into the groove of the case and press the pin to exit it from the body by the amount required to grip the Platypus or with side cutters (Fig. 11).
4.3. Grabbing the platypus pin (with side cutters), remove it from the body (Fig. 12).
4.4. Similarly, on the left side, push out the pin by the amount required to separate the halves of the cartridge (Fig. 13). In this case, the pin remains in the body and is removed after removing the cleaning blade and cleaning the mining hopper (operation 5.9).
4.5. Raising the upper half of the cartridge, separate its body into two parts (Fig. 14). Steps 5-10 are performed with the lower part of the cartridge containing the mining hopper, and steps 11-20. From the top, which contains the magnetic shaft and the filling hopper.
Step 4 warning.
When drilling holes and pushing out the pins, be careful not to damage the seating holes of the pins in the plastic housing of the cartridge.
They clean the mining bunker, for which:
5.1. To prevent toner from spilling through the gap between the cleaning blade and the pick-up blade (from the waste bin when removing the drum unit), the toner in the waste bin is oscillated along the far wall of the bin.
5.2. Use a Phillips screwdriver to unscrew the screw and remove the cover for the drum unit, which is located on the side of the drum drive gear (Fig. 15).
5.3. Lifting the drum by the gear, carefully remove it from the groove and remove it from the axis with rotational movements (Fig. 16).
Warnings for operations 5.1-5.3.
A) do not touch the photosensitive layer of the drum unit with your hands.
B) To prevent damage to the photosensitive layer, when removing the drum unit, do not allow it to touch the cartridge case.
C) Do not expose the drum to strong light.
D) After removal, the drum unit must be placed in a dark place on a substrate (lint-free cloth), excluding mechanical damage to the photosensitive layer.
E) To prevent toner from spilling after performing operation 5.1, the half of the cartridge is turned over before cleaning the waste bin (operation 5.7).
5.4. With tweezers or a hook, they grab the primary charge shaft by the metal one and carefully remove it from the cartridge body (Fig. 17).
Operation warning 5.4.
When removing / installing the primary charge shaft, do not touch the shaft shell with your hands.
5.5. Unscrew the two screws securing the cleaning blade (squeegee) that closes the mining hopper.
5.6. Use tweezers to lift the cleaning blade and remove it from the housing.
Operation warning 5.6.
When removing the cleaning blade, grab it with tweezers (platypus) only by the metal part so as not to damage the working edge.
5.7. Pour toner from the waste bin into a plastic bag (to extend the life of the vacuum cleaner filter).
5.8. Use a vacuum cleaner to clean toner residues from the waste bin, wiper blade seals, drum seals, and wiper blade surface, as well as shavings resulting from drilling and reaming with a scalpel. If necessary, Clean (wipe) the cartridge body.
5.9. Remove the pin, which remained in the housing on the left side during the operation (Fig. 19).
Note for operation 5.9.
The pin is removed for easy alignment of the holes when assembling the cartridge (operation 2.1) If you have developed the skills of refilling this type of cartridges, it is not necessary to remove the pin.
Inspect the sealing blade, while paying attention to damage or deformation of its working edge, which are unacceptable, since in this case the cartridge will spill toner into the printer.
6.1. Wipe the cleaning blade with a lint-free cloth and carefully inspect the working edge. Seizure, deformation, loss of elasticity of polyurethane or its separation from the metal is unacceptable.
6.2. Inspect the seals at the edges of the mining hopper between the cartridge housing and the drum unit.
Install the cleaning blade in place, after sprinkling its working edge with talcum powder or toner to prevent it from behind the gate when the drum rotates and damage to the photosensitive layer applied to the drum.
Step 7 warning.
When installing the cleaning blade, it is undesirable to touch its working edge to avoid rubbing off the applied talcum powder (toner).
Recommendations for surgery 7.
Talc (toner) is applied to the working edge of the cleaning blade by dipping the working edge onto it. To do this, a little talcum powder (toner) is poured onto a sheet of paper, distributed with a strip, the length of which is slightly longer than the length of the cleaning blade, and the working edge of the latter is immersed in it.
Secure the cleaning blade with screws.
Wipe the primary charge shaft with a lint-free cloth and inspect the surface. If it is perfectly clean, then install it in place.
Step 9 warning.
The charge shaft bushings (left and right) are not interchangeable. The black bushing is conductive and is used to supply voltage to the precharge shaft from the contact plate mounted on the cartridge housing. If necessary (absence or disappearance of electrical contact between the shaft axis and the bushing during its rotation) The shaft seat on the side of the black bushing is lubricated with conductive grease.
Install the drum unit.
10.1. If necessary, use a vacuum cleaner and a brush to clean the toner and dirt from the plastic drum gear.
Operation warning 10.1.
When cleaning the gear, hold the drum unit by a lint-free cloth, do not touch the drum cover with your hands or the nozzle of the vacuum cleaner.
10.2. Holding the drum unit by the gear wheel, gently, without strong pressure, wipe its surface with a lint-free cloth.
10.3. Examine the photosensitive layer of the drum for mechanical damage and wear. If they are found, taking into account the quality of the printout received before refueling, replace the drum unit.
10.4. Sprinkle talcum powder or toner on the working surface of the drum unit with a narrow strip along its entire length to avoid damage to the surface of the drum unit and the cleaning blade during the first rotation after refueling.
10.5. Replace the drum unit. Reverse the procedure for removing the drum unit.
10.6. Install the drum unit cover and tighten the screw that secures the cover to the cartridge body.
10.7. Rotate the drum by the gear in the direction of the working rotation. At the same time, the cleaning blade cleans the dust from the drum. The drum rotation force must be the same, jerk and jamming when turning the drum are unacceptable.
10.8. If necessary, wipe the outer surface of the cartridge half and place it in a dark place to prevent light from the drum.
Step 10 warning.
Avoid strong light when handling the drum unit.
Unscrew the screw that secures the side cover to the body from the side of the check (the side opposite the gear) and carefully, holding the magnetic shaft and the plastic plate on which the magnetic shaft electrical contact is located, remove the side cover (the plate on which the electrical contact is located remains on the magnetic core shaft).
Step 11 warning.
DO NOT touch the magnetic roller jacket with your fingers during operation. Hold the magnetic shaft by the spacer ring or by the plastic plate.
Operation recommendation 11.
Before cleaning, pay attention to the toner coating of the magnetic roller shell. To perform this check, shake the upper part of the cartridge slightly in order to evenly distribute the toner residues in the hopper, after which it is necessary to turn the drive gear of the magnetic roller in the direction of its rotation by 2-3 turns.
After turning the shaft, the toner should evenly cover the entire shell. Typical defects are toner unevenness. Sagging, bald spots and annular grooves. Sagging indicates deformation of the metering blade. Grooves usually occur when debris or large toner particles get under the metering blade. There are two main reasons for the appearance of bald spots. Wear of the shell of the magnetic roller or almost complete depletion of toner.
Holding the magnetic roller the spacer ring or installing the magnetic roller fixing bracket (recommendation for operation 20), use your fingers or a wide screwdriver to remove the polyethylene plug that closes the toner hopper (Fig. 23). Use a screwdriver carefully to avoid damaging the hopper cap. The rest of the toner in the hopper is poured into a plastic bag.
If there are no dirt and traces of toner on the gears of the cartridge, then it is enough to slightly raise the end of the magnetic shaft and use a vacuum cleaner to clean the shell and seal of the magnetic shaft from toner and possible debris, turning the shaft around the axis in the direction of its rotation during operation (Fig. 24), after which goes to refueling (operation 20). In case of heavy contamination of the gear mechanism parts, operations 1419 are performed, associated with the complete disassembly of the upper half of the cartridge.
Place half of the cartridge with the magnetic roller up.
Operation warning 14.
If you use toner that is identical (of the same brand and manufacturer) to the refilling in this cartridge, DO NOT completely clean the refilling hopper. In the case of using second-party toner for refilling, thoroughly clean the refilling hopper from toner residues (steps 15-18).
Unscrew the screw that secures the cover from the side of the gears, and then carefully remove it.
The gears of the drive of the magnetic shaft and the stirrer are removed, previously memorized the places of their installation, and then, using a brush and a vacuum cleaner, these gears are cleaned from dirt and toner.
They remove the magnetic shaft and use a vacuum cleaner to clean all the elements of the cartridge from toner. If necessary, Clean the side covers and housing from toner (fig. 25).
Inspect the condition of the working edges of the metering and sealing blades and the magnetic shaft seals. Damage to these edges is unacceptable.
Wipe the shell of the magnetic shaft with a lint-free cloth and assemble the upper half of the cartridge in the reverse order. The plug and sidewall from the plug side are not installed.
Step 19 warning.
When installing the magnetic roller, be careful not to damage the metering and sealing blades.
Refueling the cartridge:
20.1. Shake the toner can well (the can lid must be closed).
20.2. Holding the magnetic shaft with the spacer ring or Using the magnetic shaft fixing bracket, place the upper half of the cartridge with the filling hole facing up (fig. 26).
20.3. Using a funnel (or a manufactured device), carefully pour the toner into the hopper (fig. 27).
Operation warning 20.3.
When using a regular funnel, remember that the toner tends to spill out like an avalanche, while scattering in different directions, so the filling of the toner is carried out slowly, without suddenly tipping the can into the funnel.
20.4. Close the filling hole with a polyLenovo plug.
20.5. If necessary, Clean up spilled toner around the filling hole and the side of the upper half of the cartridge.
20.6. Align the plastic pins located on the inside of the side cover with the holes in the magnetic shaft mounting plate, install the side cover and tighten the screw that secures the cover to the body (Fig. 28).
20.7. Turn the gear wheel of the magnetic shaft drive in the direction of its rotation during operation by 2-3 turns. Pay attention to the uniformity of the toner coating of the magnetic roller shell (fig. 29).
Operation warning 20.
Hold the magnetic roller to the side cover to avoid spilling toner.
Recommendations for surgery 20.
After installing the magnetic roller during refueling (before installing the side cover), it can be fixed with a U-shaped bracket. The bracket is inserted into the holes of the plate on which the electric contact of the magnetic shaft is located, and is inserted into the holes located in the side of the cartridge case, similar to the plastic pins of the side cover. Before installing the cover, remove the bracket, holding the spacer ring on the magnetic shaft. By fixing the magnetic shaft with a bracket, there is no need to hold the magnetic shaft during refueling.
Connect the halves of the cartridge:
21.1. Insert the protrusions of the upper half of the cartridge into the indentations of the second half.
21.2. Place the cartridge vertically and align the hole on the protrusion with the hole in the body of the second half.
21.3. Install a pin into the hole and insert it into the body to a depth required for secure fixation of the cartridge halves to each other (Fig. 30).
21.4. Flip the cartridge 180 degrees and perform steps 21.2 and 21.3 on the other side.
Turning the gear wheel, rotate the drum in the direction of the working rotation. The drum rotation force must be the same, jamming when turning the drum is unacceptable.
Install the drum shutter in the reverse order of its removal, while paying attention to the correct installation of the return spring (Fig. 31, 32).
Operation warning 23.
Be careful to avoid breaking the shutter axis. Force with a flat screwdriver should only be applied to the axle above the body seat.
Wipe the outer surface of the cartridge if necessary.
After refueling, the cartridge is installed in a printer or all-in-one printer, a test page is printed and the quality of the resulting printout is evaluated.
When performing all operations, you should be careful and DO NOT use brute force, otherwise damage to the elements of the cartridge may occur.