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http://www.articleshub.comHewlett Packard’s LaserJet 4200 and the LaserJet 4300 series of printers were first released in November of 2002. They were both designed to replace the now discontinued Hewlett Packard 4100 LaserJet printer.
Based on a new print engine, the 4200 and 4300 series have increased print speeds of 35 ppm (pages per minute) for the 4200 and 45 ppm (pages per minute) for the 4300 with an improved first page out time of less than 9 seconds.
Wow, that is pretty fast. At a starting cost of about $1,000 for the base model 4200 and $1,399 for the base model 4300. These new printers are priced at the same cost as the Hewlett Packard 4100 LaserJet printer.
There are differences in the molding of the cartridges which do prevent them from being interchangeable. One notable difference is in the design of the toner hopper.
The toner hopper on the HP 4300 is larger and holds 1,050 grams of toner for an estimated page yield of. This will approximately perform 18,000 pages @ 5% coverage.
The smaller toner hopper on the HP 4200 holds only 690 grams of toner and yields approximately 12,000 pages @ 5% coverage. Another notable difference is in the waste section. The waste hopper of the HP 4300 is larger to hold the extra waste produced by the higher fill weight.
The HP 4200 waste hopper also has a fin sticking up on the left side of the hopper that prevents the cartridge from fitting into the HP 4300 LaserJet printer.
Due to the fact that the 4200 and the 4300 both use the same print engine, the components that make up the cartridges are the same.
The cartridge chips located on the top right side of the waste hopper however, are in indeed different. A slight difference in programming prevents one chip from being used on both cartridges, so it’s important to use the correct chip when remanufacturing the cartridge.
Though the chip is physically different than that of the HP 4100, the information that the chip contains is nearly the same.
A few additional items like First Installed Date and Last Date Used are one-stored chips. This information is displayed at the bottom of the Supplies Status Page.
Just like the HP 4100, 4200 and the 4300, all can be run with a spent chip or with no chip installed at all.
Several testing have shown that the chip can be run again in the printer that it was used in originally. Running the used chip causes a “Replace Cartridge†message and the loss of the toner low warning.
Usage of the chip in a machine other than the one it was previously running in will result in a “Non-HP Cartridge Detected†message and the loss of all the information on the Supplies Status Page.
While running the cartridge without the chip, it will result in a “10.10.00 Supplies Memory Error†when the cartridge is first installed.
After pressing the Select button a “Non-HP Cartridge Detected message will appear before the machine goes to ready. All the information stored in the chip will not be available and a “Warning†message is all you will find on the Supplies Status Page.
Here are you Step-by-Step "How-to-Remanufacture" the HP Q1338A/Q1339 Instructions:
Let’s get straight to the point, no beating around the bush during this lecture.
First, you will need the necessary Tools & Supplies Required:
Tools & Supplies Required:
•Diagonal Cutters (tool)
•Phillips Head Screwdriver (tool)
•Small Flat Blade Screwdriver (tool)
•Dremel Tool with Cutting Bit (tool)
•Needle nose Pliers (tool)
•Padding Powder (supply)
•Soft Lint Free Cloth (supply)
•Anhydrous Isopropyl Alcohol (supply)
•Swabs (supply)
•Toner (supply)
•Drum (supply)
•Expanding Foam (supply)
•Doctor Blade (supply)
•Wiper Blade (supply)
Here you will also be provided with the OEM (original equipment manufacturer) information:
HP 4200:
•Part Number: Q1338A
•OEM Gram Load: 690 grams
•Yield @ 5% coverage: 12,000 pages / min:35
•Resolution: 300/600/1200dpi (dots per inch)
HP 4300:
•Part Number: Q1339A
•OEM Gram Load: 1025 grams
•Yield @ 5% coverage: 18,000 pages / min:45
•Resolution: 300/600/1200dpi (dots per inch)
Below are your 53 easy steps to know how to remanufacture your HP 4200/4300 LaserJet Q1338A/Q1339A toner cartridges.
Step #1:
•Place the cartridge on the worktable with the drum facing upward and the drum shutter arm towards you.
Step #2:
•Using a small flat blade screwdriver, release the clip that holds the drum shutter arm to the cartridge.
Step #3:
•Pull the shutter arm from the drum shutter and slide the shutter arm from its positioning post.
Note: Do not lose the tension spring that fits inside the drum shutter arm. Place the tension spring back into the shutter arm.
Step #4:
•Open the drum shutter exposing the drum. The drum shutter is keyed on the non-contact side of the cartridge. Slide the shutter bar back until the bar can be removed from the cartridge end cap.
Step #5:
•Pull the drum shutter bar from the cartridge contact end cap. Then you want to set the drum shutter aside.
Step #6:
•Next, remove the two screws holding the cartridge cap to the cartridge.
Step #7:
•Using a flat blade screwdriver, pry the contact end cap away from the toner hopper breaking the three plastic welds holding the end cap to the toner hopper. Afterwards, remove the end caps.
Step #8:
•Using diagonal cutters cut the three plastic welds flush with the contact end cap.
Step #9:
•Simply rotate the cartridge 180 degrees. Carefully remove the four screws holding the gear housing end cap.
Step #10:
•While holding the opposite end of the cartridge, remove the gear assembly end cap from the cartridge. Then you want to separate the two sections and set the toner hopper aside.
Step #11:
•Remove the screw holding the drum axle. Then remove the drum axle.
Step #12:
•Lift the drum by the small gear and pull the drum from the bearing hub.
Step #13:
•Remove the PCR from the PCR saddles.
Note: If you are going to reuse the PCR clean the roller using a lint free cloth and water.
Step #14:
•In order to remove the wiper blades; pull the OEM sealing foam material away from the wiper blade.
Note: The OEM sealing foam material is sticky and is not easily removed.
Step #15:
Note: This step is only for the HP 4300. Using a Dremel with a cutting bit cut away the retaining wall that prevents the wiper blade from being removed.
Step #16:
•Remove the two screws holding the wiper blade. Then remove the blade.
Step #17:
•Dump the waste from the hopper. Clean the hopper using dry compressed air or a vacuum.
Step #18:
•Apply padding powder to the new wiper blade and place the blade onto the waste hopper. Install the two screws that hold the blade in place.
Step #19:
•You will now need to seal the area around the wiper blade using expanding foam along the edge of the blade and in the square holes on the ends.
Step #20:
•Clean the PCR saddles using a swab and alcohol.
Step #21:
•At this point, you want to apply new conductive grease to the black contact saddle. Install the cleaned PCR.
Step #22:
•Apply padding powder to the drum. Slide the drive gear into the bearing hub.
Step #23:
•Install the contact end plate.
Note: Make sure the contact plate sits flush with the end of the waste hopper.
Step #24:
•Install the screw that holds the contact plate in position.
Step #25:
•Place the waste hopper aside in a protected area out of the light.
Step #26:
•Remove the mag roller drive gear housing from the end of the toner hopper. Then remove he mag roller drive.
Step #27:
•Remove the screw that holds the mag roller end plate.
Step #28:
•Using needle nose pliers, simply remove the hinge pin from the mag roller end plate.
Step #29:
•Remove the mag roller tension spring.
Step #30:
•Pull the mag roller end plate from the toner hopper.
Note: Do not lose the bearing that sits inside the mag roller end plate.
Step #31:
•Lift the free end of the mag roller sliding the roller out of the mag roller end plate on the opposite side of the toner hopper.
Note: Do not lose the bearing that sits inside the mag roller end plate.
Step #32:
•Remove the mag roller bearings from the each end of the roller. Clean the mag roller using dry compressed air or vacuum, then using a lint free cloth and a mag roller cleaner. Clean the mag roller bearings and use a lint free cloth.
Step #33:
•Remove the two screws holding the doctor blade.
Step #34:
•Lift the plastic scrapers and mylar shims off each end of the doctor blade.
Step #35:
•Lift the doctor blade from the toner hopper. If you plan on using the doctor blade again, clean the doctor blade using dry compressed air or a vacuum, then using a lint free cloth and alcohol.
Step #36:
•Dump the old toner out of the toner hopper. Using dry compressed air or a vacuum, clean out the hopper.
Step #37:
•Fill the toner hopper with the correct amount of toner depending on the cartridge type you are building.
Step #38:
•Place the new or cleaned doctor blade onto the toner hopper. Place the mylar shims and the plastic scrapers on each end of the doctor blade. Install the two screws holding the blade in place.
Step #39:
•Slide the black mag roller bearing onto the contact end and the white bearing onto the drive gear end of the mag roller. Slide the mag roller contact hub into the mag roller bearing plate on the toner hopper.
Step #40:
•Align the mag roller bearing end plate to the toner hopper and slide the end plate onto the toner hopper.
Step #41:
•Install the mag roller tension spring and the screw into the mag roller bearing end plate.
Step #42:
•Install the hinge pin into the mag roller bearing plate.
Step #43: •Slide the mag roller drive onto the mag roller.
Note: Make sure the two injection molding points on the mag roller drive gear face outward.
Step #44:
•Place the mag roller drive gear housing onto the end of the mag roller, making sure the keyed end of the magnet fits into the gear housing.
Step #45:
•Using a 3/32-drill bit, drill a hole next to the toner sensing contact on the cartridge contact end cap.
Step #46:
•Join the toner hopper and waste hopper together. Place the cartridge gear housing end cap onto the side of the cartridge. Install the four screws that hold the end cap in place.
Step #47:
•Place the contact end cap onto the end of the cartridge. Install the two screws that hold the end cap in place.
Step #48:
•You will now need to lock the contact end cap in place. To do this, drill a 1/16 hole through the contact end cap and through the toner sensor bar positioning post. The hole needs to be drilled approximately 1/8 from the end of the toner hopper and 1/8 from the end of the sloped section on the contact end cap.
Step #49:
•Now, install a 1/16 spring pin into the hole drilled in the bottom of the contact end cap.
Step #50:
•Install the keyed end of the drum shutter bar into the gear housing end cap.
Step #51:
•Install the non-keyed end of the drum shutter bar into the contact end cap.
Step #52:
•Slide the drum shutter arm onto the positioning post. Push the drum shutter arm into the drum shutter. Gently, slide and open the shutter to engage the tension spring.
Step #53a:
•We are almost done. Place one probe of an Ohmmeter on the toner sensor contact and place the other probe into the hole that was drilled next to the contact. Locate the sensor bar that comes out from the toner hopper through the hole drilled in the end cap, making sure you have a low resistance connection.
Note: If the contact is not made between the sensor bar and the contact on the end plate, this will result in an error “54.1 Remove Sealing Tape†or if contact is lost during usage, a premature toner low can occur.
Step #53b:
•Test the cartridge.
Congratulations, you have successfully completed the process on how to remanufacture your own HP 4200/4300 series LaserJet toner cartridges.
Good luck and complete each cartridge as if it were your last. This information is provided to you for both educational use and to improve your knowledge in the technical area within the remanufacturing industry.
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