HP® LASERJET ENTERPRISE 600 • MFP 4555
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1. 5 Remove the five screws from the left side end cap 6 Remove the right side end cap from the cartridge Note that the gears do not come off the end cap 7 Remove the left side end cap Both halves will come apart easily Be careful not to damage the drum or magnetic roller sleeve uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS W 8 Remove the drum s plastic bushing gear train assembly and screw 9 To remove the drum lift it from the large gear side pull over and remove it There is no need to remove the drum axle pin If it is removed there is a chance that the hole in the plastic wall where the pin sits will become slightly enlarged This will then allow the axle and drum to move slightly and cause banding www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not2. only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 1 Place the cartridge with the toner hopper facing up and 2 Open the drum cover towards the back of the cartridge towards you This will orient the cartridge for right and left Remove the right side metal bar by pressing it out of the small sides Remove the five screws on the right side end cap clip 3 On the opposite side of the cartridge carefully pry off the 4 Remove the metal bar from the left side and remove the drum cover plastic arm The spring will probably pop off entire drum cover assembly Make sure you put the spring in a Take care not to lose it We will go over the installation at the safe place end of this article www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS
3. CALIBRATE CLEANING menu and the CLEANING PAGE menu 3 Touch the PRINT button to run the page This process can take a few minutes to complete Running test pages 1 From the HOME screen touch the ADMINISTRATION button 2 Open the REPORTS menu and the CONFIGURATION STATUS pages 3 Choose the CONFIGURATION page ADMINISTRATION MENU MAP CURRENT SETTINGS page or STATUS page 4 Touch the PRINT button to run the report PRINTER ERROR CODES There are literally hundreds of error codes listed in the service manual on these machines We have listed just the more common cartridge and paper jam codes here 10 XX YY Supply memory error An error has occurred in one or more of the printer supplies HP again calls the chip a memory tag and the machine cannot communicate with one of them 10 XX 33 Used supply in use Chip not changed 10 XX 40 Genuine HP supplies installed 10 XX 41 Unsupported supply in use Wrong chip installed 10 YY 35 Incompatible supply in use 13 XX YY All the error 13 codes deal with paper jams or a door open There will always be a text message under the number code tell you where the jam is These messages are very specific uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthor
4. HP LASERJET ENTERPRISE 600 MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS HP LASERJET ENTERPRISE 600 MFP 4555 TONER CARTRIDGE ee www uninetimaging com 21 ging i ark r 3 a k are property of their respective owners Product brand names mentioned are intended to show com Hae ae UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact tects o etimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS REMANUFACTURING THE HP LASERJET ENTERPRISE 600 MFP 4555 TONER CARTRIDGES By Mike Josiah and the Technical Staff at UniNet First introduced in March 2011 the HP LaserJet Enterprise 600 MFP 4555 engine is a 43 62 ppm depending on the model 1200 dpi multifunction engine The new CE390A and CE390X cartridges are rated for 10 000 and 24 000 pages respectively As with all monochrome black HP cartridges to date the chip is mainly controlling the toner low functions and of course the HP non HP cartridge message HP initially released the MFP machines first Then a few months later the Enterprise GOO series was released These are nice cartridges to remanufacture in that there are no plastic rivets to cut or drill All the screws are the same size and no glue type seals are used anywhere inside CURRENT MACHINES THAT USE THESE NEW CARTRIDGES HP LaserJet E
5. UCTIONS 38 Install the arm onto the cartridge Pull back all the way and 39 Replace the chip on the top of the cartridge Replacing this release the spring from the notch so that the tail fits as shown chip will enable the toner low functions of both the cartridge and the machine again AO Install the plastic separator seal This seal keeps the two halves slightly separated relieving the pressure of the various foam and spring assemblies www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS REPETITIVE DEFECT CHART OPC drum 94 mm Upper fuser sleeve 94 mm Lower fuser pressure roller 94 mm Cassette feed and separation rollers 79 mm Tray 1 feed roller separation roller 79 mm Magnetic roller sleeve 63 mm Tray one pickup roller 63 mm Pre registration roller 50 mm Feed roller 50 mm Transfer roller 47 mm PCR 37 7 mm TEST PAGES FROM BOTH LASER PRINTERS amp MFP MACHINES Running the cleaning page 1 From the HOME screen touch the DEVICE MAINTENANCE button 2 Open the
6. ause of the speed of the machine up to 62 ppm uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS Pictured are shipping seals in place on a new OEM cartridge The main seal separates the two halves of the cartridge relieving some of the pressure on the various spring loaded and foam assemblies Printer usage as well as some common printer cartridge problems will be covered at the end of this article REQUIRED TOOLS 1 Toner approved vacuum 2 Asmall common screwdriver 3 A Phillips head screwdriver 4 Needle nose pliers 5 Magnetic roller press REQUIRED SUPPLIES 1 Dedicated toner 1 100 grams for the high yield 725 grams for the low yield 2 Replacement drum 3 Wiper blade 4 Doctor blade 5 PCR 6 Magnetic roller sleeve 7 Conductive grease 8 White lithium grease 9 Replacement chip uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility
7. brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 20 Remove the magnetic roller sleeve assembly The left non gear bushings may come off with the roller If they do not remove them so they are not lost or damaged 21 Lift up on the clear scraper covers and remove the two doctor blade screws Remove the two scrapers and the doctor blade uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS n 22 Remove the fill plug from the hopper 23 Note the magnetic seals on both the magnetic roller sleeve and doctor blade sealing foam Make sure both are clean Clean out all the remaining toner in the supply hopper 24 There are two separate mixing blad
8. conductive grease on the black PCR saddle Remember when using conductive grease more is not better Also place a small amount of white lithium grease on the white holder side 14 Install the wiper blade and two screws Be careful not to damage the small contact that comes off the PCR spring on the black holder side 16 Install the drum drum bushing assembly and screw Make sure the gears from the bushing assembly align with the drive gear on the hopper Place the waste chamber aside uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 17 On the supply chamber carefully pry off and remove the 18 Remove the magnetic roller sleeve drive gear magnetic roller sleeve cover 19 Note the location of the spring that sits between the magnetic roller sleeve holder and the hopper Remove the two screws spring and the holder www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product
9. crew from the end cap into the waste hopper to hold it in place www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 34 Install the right side end cap and five screws 35 Install the remaining three screws on the left side end cap 36 Install the metal bars from the drum cover on both sides 37 Install the spring into the drum cover arm as shown of the cartridge Place the bars in front of their slots and press Pull the upper tail of the spring until it fits into the notch in the in place with a small screwdriver arm hub www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTR
10. eft side of the magnetic roller is a small hub keyed into the magnetic roller sleeve holder Align the hub with its slot and install the hub as well as the entire magnetic roller sleeve assembly uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 28 Install the two doctor blade scrapers and screws The clear scraper covers must sit on top of the roller Installing them now will lessen the chance of damaging or getting any grease on them 29 Install the holder and spring Make sure that the spring is compressed so it fits into its slot This is easily done with a small screwdriver as the holder is pressed in place If you are having a hard time getting the holder in place take a moment to look at the angles of the plastic holder They have to align with the corresponding angles in the hopper for it to fit Install the two screws uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names ment
11. es in the toner hopper 25 Clean the magnetic roller contacts and replace the The largest is on the bottom with the smallest on the top conductive grease If the plating on the contact is worn Each is driven by its own separate drive gear The upper they should be replaced or banding will most likely occur magnetic roller section of the toner hopper floats on a series of foam seals The upper half can be removed from the hopper but some of the seals will be destroyed This may become necessary in order to seal the cartridge We will keep you informed on the availability of a seal system and how to install it as our testing continues The foam isolates the magnetic roller from the vibrations of the mixing augers and allows smoother prints www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 26 Install the doctor blade and be careful with the alignment pins Do NOT install the scrapers or screws yet 27 Clean the magnetic roller with dedicated magnetic roller cleaner On the l
12. ioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 30 Install the magnetic roller sleeve drive gear 31 Install the keyed magnetic roller sleeve cover Make sure that the keyed hole in the cover matches the keyed end of the magnet in the magnetic roller assembly Note that the post on the front doctor blade side is longer than the back post uninet www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 32 Fill with appropriate amount of dedicated toner and replace the fill plug 33 Install the left side end cap onto the toner hopper It is easier to install the end cap on the supply hopper first Install one screw and slide the waste chamber into the end cap Install another s
13. ized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com
14. nterprise 600 M60in HP LaserJet Enterprise 600 M601dn HP LaserJet Enterprise 600 M602n HP LaserJet Enterprise 600 M602dn HP LaserJet Enterprise 600 M602x HP LaserJet Enterprise 600 M603n HP LaserJet Enterprise 600 M603dn HP LaserJet Enterprise 600 M603xh HP LaserJet M4555h MFP HP LaserJet M4555f MFP HP LaserJet M4555fskm MFP These cartridges are also very profitable to make The retail price for the CE390A is 238 50 USD and the CE390X is 398 56 USD Pricing in U S American Dollars as of December 2011 One very interesting note is that the printer uses the laser scanner unit to eliminate residual charges from the OPC drum Here is what the service manual states on this The residual charge on the photosensitive drum surface is eliminated to avoid uneven image The residual charge of the previous image is left on the drum surface after the transfer operation and this affects the following image formation The product eliminates this residual charge by emitting a laser beam to the drum surface The drum charge elimination is operated only during the last rotation period So basically after the wiper blade cleans the drum the laser fires again at a different intensity to electrically clean the drum The PCR is still charging the drum with both AC and DC signals so it is still cleaning the drum electrically as well but the laser is helping do this by eliminating most of the charges before the PCR fires This is most likely needed bec
15. warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 10 Remove the PCR 11 Remove the two screws from the wiper blade Due to the high speed and page counts of these cartridges we recommend that the wiper blades be replaced 12 Note that there is not any type of sticky sealant on the 13 Clean the felt and foam seals under the wiper blade wiper blade There is just normal foam and felt seals under the blade Remove the wiper blade from the cartridge and clean Make sure they are not compressed or they may leak out the waste toner Be careful not to damage the spring coming out from the black PCR holder Clean the PCR with your standard PCR cleaner www uninetimaging com 2012 UniNet Imaging Inc All trademark names and artwork are property of their respective owners Product brand names mentioned are intended to show compatibility only UniNet Imaging does not warrant downloaded information Unauthorized sale reproduction or distribution of this article is prohibited For additional support please contact techsupport uninetimaging com HP LASERJET ENTERPRISE 600 e MFP 4555 TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 15 Install the cleaned PCR Place a small amount of
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