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HP CF283A Instructions Manual
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HP CF283A Instructions Manual

Toner cartridge. for pro mfp m125 series.
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HP
PRO MFP M125 SERIES CF283A
®
TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS
HP CF283A TONER CARTRIDGE
© 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
www.uninetimaging.com
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

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Summary of Contents for HP CF283A

  • Page 1 PRO MFP M125 SERIES CF283A ® TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS HP CF283A TONER CARTRIDGE © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 2 In December 2013, Hewlett Packard released the LaserJet Pro M125 series of printers. The M125 series of laser printers are based on a 21-ppm, 600 x 600dpi (1200dpi with Fast Res) Canon engine. As with almost all HP cartridges now, these new cartridges use a chip that controls the toner low functions and must be replaced each cycle.
  • Page 3 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS Shown is a nice block diagram of the printing process. The image formation process consists of a series of steps. In the first step, the Primary Charge Roller (PCR) places a uniform negative DC bias voltage on the OPC drum surface.
  • Page 4 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS In the second step, the laser beam is fired onto a rotating mirror (called the scanner). As the mirror rotates, the beam reflects into a set of focusing lenses. The beam then strikes the OPC’s surface, which neutralizes the negative charge on the drum and leaves a latent electrostatic image on the drum.
  • Page 5 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS The third step (developing block) is where the toner image is developed on the drum by the developing section (or supply chamber), which contains the toner particles. The toner is held to the magnetic roller sleeve by the stationary magnet inside the sleeve, and a DC bias voltage supplied by the high voltage power supply.
  • Page 6 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS As the laser-exposed areas of the OPC drum approach the magnetic roller, the toner particles are attracted to the drum's surface due to the opposite voltage potentials of the toner, and laser-exposed surface of the OPC drum.
  • Page 7 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS In the fifth step (also part of the transfer block), the paper separates from the drum. The static charge eliminator weakens the attractive forces between the negatively charged drum surface, and the positively charged paper. This prevents toner dropouts onto the paper at low temperatures and humidity and also prevents paper from wrapping around the drum.
  • Page 8 The following 12 photos show the physical differences between the CE278A, CE285A and the new CF283A cartridges... © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 9 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 78A TOP 85A TOP 83A TOP 78A RIGHT 85A RIGHT 83A RIGHT 78A LEFT 85A LEFT 83A LEFT 78A BOTTOM 85A BOTTOM 83A BOTTOM © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.

  • Page 10: Required Supplies

    HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS REQUIRED SUPPLIES 1. New replacement toner for use in HP Pro M125 2. New replacement drum 3. Replacement chip (dedicated) 4. Wiper blade 5. Doctor blade 6. Magnetic roller 7. Sealing strip 8.
  • Page 11 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 2. With the pair of needle-nose pliers, release both hopper tension springs. 3. Slide the waste/drum section over to the left side. Separate the two halves. © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 12 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 4. On the waste/drum section, lift the drum up from the gear side. Twist and remove it from the hopper. 5. Remove the PCR and clean with your standard PCR cleaner.
  • Page 13 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 7. Clean out all the waste toner from the hopper. Be careful not to damage the recovery blade located next to the wiper blade. If this blade is bent in any way, the cartridge will leak.

  • Page 14: Required Tools And Materials

    HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 10. Place another small amount of conductive grease onto the metal drum axle. DRUM GEAR REPLACEMENT UPDATE: If you are replacing the drum, the gears will need to be changed over from the OEM to the new. There are two methods of removing the gears from OPC drums: The first and easiest method is to place the drum in a metal vice approximately 2"...
  • Page 15 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS Step #4 - Install the gears on the new replacement drum: A. Inspect the metal contacts on the contact gear. Make sure that the contacts will make proper contact with the inside of the OPC drum.
  • Page 16 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 14. Remove the gears from the hopper as shown. Leave the large auger-gear in place. 15. Remove the single screw and end cap from the opposite side. © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 17 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 16. Remove the magnetic roller assembly. Be careful of the bushings! They are very fragile. 17. Remove the doctor blade and two screws. © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 18 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 18. Clean out all the remaining toner from the hopper. 19. Fill the hopper with new replacement toner for use in the Make sure the magnetic roller seals and the doctor blade HP Pro M125.
  • Page 19 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 21. Install the left-side end cap and screw. Make sure the small contact piece is installed correctly on the end cap. 22. Install the doctor blade and two screws. © 2014 UniNet Imaging Inc. All trademark names and artwork are property of their respective owners. Product brand names mentioned are intended to show compatibility only.
  • Page 20 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 23. Install the magnetic roller black bushing side first. 24. Install the gears as shown. Turn the roller until the keyed end locks in place. 25. Install the end cap and screws.
  • Page 21 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 26. Place the drum/waste hopper into the toner hopper. Slide it over so the round hinge pins fit into their respective holes. 27. Set the hopper tension springs back in place.
  • Page 22 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 28. With the drum cover spring as shown on the end cap, install the end cap. Lift up the tail of the spring to fit onto the hopper. 29. Lift up the drum cover sprint tail to fit as shown on the drum cover.
  • Page 23 HP PRO MFP M125 SERIES CF283A TONER CARTRIDGE REMANUFACTURING INSTRUCTIONS 30. Replace the chip. REPETITIVE DEFECT CHART OPC drum: 75 mm Upper fuser film: 57 mm Lower pressure roller: 56 mm Transfer roller: 39 mm Magnetic roller: 34 mm PCR: 27 mm ©...