• Email More Options Modal Window

  • Remanufacturing the HP LaserJet PRO M118 (CF232A) Drum Cartridge

    HP LaserJet PRO M118 (CF232A) Drum Cartridge
    HP LaserJet PRO M118 (CF232A) Drum Cartridge

    By Mike Josiah and the Technical Staff at Uninet

    The HP LaserJet PRO M118 series of printers are based on a monochrome 30ppm, 1200 Dpi engine. The first page out is stated to be under 6.6 seconds, and all “W” models so far come with Wi-Fi, Apple AirPrint, HP ePrint, Google Cloud Print, HP Smart App and Wi-Fi Direct Print built in.

    All machines released do far come standard with 256Mb memory and have a duty cycle of 20,000 pages per month.

    This engine uses the fairly new 2 cartridge system for HP Monochrome printers in that there are separate Toner and Drum cartridges. Typically HP/Canon have used “all in one” type cartridges for monochrome printers. Both the toner and drum cartridges are small and not rated for many pages so even though this is sold as a low volume machine, I believe there will be a decent demand for the cartridges. The cartridges are simple and fast to remanufacture.

    There are two cartridges in this engine the toner (CF294A/X) and the drum cartridge (CF232A). The “A” toner is rated for 1200 pages, “X” is rated for 2800 pages and the drum unit is rated for 23,000 pages. The starter toner cartridge that comes with the printer is rated for 1000 pages.

    These drum units are easy and very fast to rebuild.


    Printers based on this engine:*

    HP LaserJet PRO M118dw
    HP LaserJet PRO M119n
    HP LaserJet PRO MFP M148dw
    HP LaserJet PRO MFP M148fdw

    Current list pricing for the cartridges:*

    CF294A $46.99*
    CF294X $84.99
    CF232A $88.99*

    * As of 4/1/19


    Required Tools

    1) Toner approved vacuum.
    2) A small Common screw driver
    3) A Phillips head screwdriver

    Required Supplies

    Replacement drum for use in the HP LaserJet Pro M118
    Replacement drum cartridge chip
    Conductive Grease



    1) Place the cartridge with the handle facing away from you. Carefully pry out the metal drum axle. See Figure 1

    Figure 1
    Figure 1



    2) Lift up and remove the drum. See Figure 2.

    Figure 2
    Figure 2



    3) Remove the PCR. Note that the two white bushings will most likely cone out with it. See Figure 3

    Figure 3
    Figure 3



    4) Press in on the bottom white clips to free the spring loaded PCR cleaning brush. There are two tabs on each side of the cartridge. See Figures 4, 5 & 6

    Figure 4
    Figure 4



    Figure 5
    Figure 5



    Figure 6
    Figure 6



    5) Clean out any toner or paper dust from the chamber, Blow the cleaning brush clean of any toner or paper dust. See Figure 7

    Figure 7
    Figure 7



    6) With a link free cotton swab, clean off the erase lamp assembly. See Figure 8

    Figure 8
    Figure 8



    7) Install the cleaned PCR brush assembly. Contact side to the contact side of the cartridge. See Figure 9

    Figure 9
    Figure 9



    8) Clean the PCR with your preferred cleaner and install. Use a small amount of conductive grease on each end of the PCR. Make sure the flat side of each white bushing is facing up. See Figures 10, 11 & 12

    Figure 10
    Figure 10



    Figure 11
    Figure 11



    Figure 12
    Figure 12



    9) Install the drum by pressing down on the PCR assembly, sliding the drum in place and installing the metal drum axle. See Figures 13 & 14

    Figure 13
    Figure 13



    Figure 14
    Figure 14



    10) Replace the chip by pressing down on the locking tabs and sliding the chip out. See Figures 15 & 16

    Figure 15
    Figure 15



    Figure 16
    Figure 16



    https://static.ombe.com/slir/w125/forums/200/rickpics/Uninet _Imaging_Logo.jpeg