{"id":78680,"date":"2026-08-07T16:41:38","date_gmt":"2026-08-07T13:41:38","guid":{"rendered":"https:\/\/drivernew.com\/?p=78680"},"modified":"2026-08-07T16:41:38","modified_gmt":"2026-08-07T13:41:38","slug":"oki-mc332-mc362-and-mc562-image-drum-life-does-not-disappear-after-replacement-errors-340-343-and-350-353","status":"publish","type":"post","link":"https:\/\/drivernew.com\/?p=78680","title":{"rendered":"OKI MC332, MC362 and MC562: Image Drum Life Does Not Disappear After Replacement \u2014 Errors 340\u2013343 and 350\u2013353"},"content":{"rendered":"

If the OKI MC332, MC362 or MC562 displays Image Drum Near Life<\/strong>, Image Drum Life<\/strong>, Install New Image Drum<\/strong>, or error 340\u2013343 or 350\u2013353, first check the exact message text. A warning that the drum is approaching the end of its life does not yet require immediate replacement, while an installation error and an end-of-life message are resolved in different ways.<\/p>\n

The listed models use a combined CMYK image drum unit. Replacing it is different from simply swapping a normal consumable: the new unit must be prepared and automatic initial charging must be performed using the temporary cartridges supplied with the kit. If this step is skipped, a used drum is installed, or the drum is confused with a toner cartridge, the message may remain.<\/p>\n

\n

If the message remains after replacement<\/strong><\/p>\n

Do not reset the counter through the service menu. Check that a new CMYK Image Drum for the exact model is installed, the initial charging procedure was completed using the temporary cartridges supplied with the kit, the unit is fully lowered into the side guides, and the old toner cartridges have been correctly transferred to the new drum. A new consumable resets its counter automatically.<\/p>\n<\/div>\n

Models This Guide Applies To<\/h2>\n

The complete procedure applies to the following color MFPs:<\/p>\n

    \n
  • OKI MC332dn;<\/li>\n
  • OKI MC342dn and MC342dw;<\/li>\n
  • OKI MC352dn;<\/li>\n
  • OKI MC362dn and MC362w;<\/li>\n
  • OKI MC562dn, MC562w and MC562dw;<\/li>\n
  • OKI ES3452 MFP;<\/li>\n
  • OKI ES5462 MFP and ES5462dw MFP;<\/li>\n
  • OKI MPS2731mc.<\/li>\n<\/ul>\n

    The same combined unit design and initial charging procedure are used on some regional variants and earlier models: C301, C310, C321, C330, C331, C510, C511, C530, C531, MC351, MC361 and MC561. Before purchasing, always check the full device name and consumable part number. Do not apply this procedure to a newer model just because its model number looks similar.<\/p>\n

    What the Image Drum Messages Mean<\/h2>\n\n\n\n\n\n\n\n\n\n\n
    Message or Codes<\/th>\nWhat Happened<\/th>\nWhat to Do<\/th>\n<\/tr>\n<\/thead>\n
    Image Drum Near Life<\/strong><\/td>\nThe drum is approaching its estimated end of life<\/td>\nPrepare a new unit; continue printing while quality remains acceptable and replacement is not yet required<\/td>\n<\/tr>\n
    340\u2013343<\/strong><\/td>\nThe image drum unit is installed incorrectly<\/td>\nReinstall the drum; if the error remains, check the seating of the transfer belt<\/td>\n<\/tr>\n
    350\u2013353<\/strong><\/td>\nThe estimated life of the corresponding drum section has ended<\/td>\nInstall a new CMYK Image Drum; opening and closing the top cover may briefly restore printing<\/td>\n<\/tr>\n
    560\u2013563<\/strong><\/td>\nA new image drum is required after the end of its life<\/td>\nReplace the unit; do not perform a manual reset<\/td>\n<\/tr>\n
    564\u2013567<\/strong><\/td>\nThe image drum has reached the end of its life<\/td>\nReplace the unit; on some variants, temporary continuation may be allowed using the ONLINE or OK button<\/td>\n<\/tr>\n
    680\u2013683<\/strong><\/td>\nPrinting has stopped because the life limit has been reached<\/td>\nInstall a new image drum; continuation without replacement is unavailable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    If temporary continuation of printing is allowed, it does not restore the drum or reset its life. Print quality is not guaranteed, and once the final limit is reached, the device will stop again.<\/p>\n

    How to Identify the Color by the Code<\/h2>\n\n\n\n\n\n\n\n\n
    Color<\/th>\nInstalled Incorrectly<\/th>\nLife Ended<\/th>\nOther End-of-Life Codes<\/th>\n<\/tr>\n<\/thead>\n
    Yellow<\/strong><\/td>\n340<\/td>\n350<\/td>\n560, 564, 680<\/td>\n<\/tr>\n
    Magenta<\/strong><\/td>\n341<\/td>\n351<\/td>\n561, 565, 681<\/td>\n<\/tr>\n
    Cyan<\/strong><\/td>\n342<\/td>\n352<\/td>\n562, 566, 682<\/td>\n<\/tr>\n
    Black<\/strong><\/td>\n343<\/td>\n353<\/td>\n563, 567, 683<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Although the message indicates an individual color, the main model group uses a combined CMYK unit rather than a separate small drum for the selected color.<\/p>\n

    Which Image Drum Is Required<\/h2>\n

    For the main group, the consumable is identified as:<\/p>\n

    CMYK Image Drum\r\nPart number: 44968301<\/pre>\n
    On different regional pages, it may be called CMYK Image Drum<\/strong>, Rainbow Image Drum<\/strong>, Image Drum Unit<\/strong> or an image drum assembly. It is a single assembly for all four colors. The specified average life is up to 30,000 black-and-white or up to 20,000 color A4 pages under typical office conditions. Actual life depends on job size, the number of power cycles, print coverage, temperature and humidity.<\/p>\n
    Before purchasing, check:<\/p>\n
      \n
    • the full MFP name, including letters after the number;<\/li>\n
    • part number 44968301<\/code> on the packaging or consumables page;<\/li>\n
    • the sales region;<\/li>\n
    • that you are purchasing an Image Drum<\/strong>, not a Toner Cartridge, Belt Unit or Fuser Unit;<\/li>\n
    • that the kit includes new temporary cartridges for initial charging and instructions.<\/li>\n<\/ul>\n
      \n
      Do not install a used drum as a new one<\/strong><\/p>\n
      A unit that has already been used in another printer may retain its previous life status and may not be recognized as new. Even if the first device showed a large amount of remaining life, the message may remain after the unit is transferred. Replacement and diagnostic testing require a new, previously unused unit.<\/p>\n<\/div>\n
      Do You Need to Reset the Image Drum Counter?<\/h2>\n
      A manual reset is not required.<\/strong> A new, working consumable is detected automatically and updates its own counter. If the message remains, the cause should be investigated in the unit itself, its compatibility, the initial charging procedure or its installation.<\/p>\n
      Do not try to clear the message using the following methods:<\/p>\n
        \n
      • resetting Drum Count in the service or diagnostic menu;<\/li>\n
      • initializing NVRAM;<\/li>\n
      • installing a fuse, reset chip or homemade contact;<\/li>\n
      • editing the Windows registry;<\/li>\n
      • removing and reinstalling the driver;<\/li>\n
      • resetting the MFP to factory settings;<\/li>\n
      • updating or downgrading firmware without a confirmed reason.<\/li>\n<\/ul>\n
        The message is generated by the MFP itself and does not depend on Windows or the driver. A general reset may remove working network, e-mail, fax and other settings, but it will not turn a used drum into a new one.<\/p>\n
        Before Replacing the Image Drum with a New One<\/h2>\n
        For initial charging, the new unit is installed while the MFP is powered on. This is an exception to the normal service procedure. Do not turn off the device before starting if you are going to install a new kit with temporary cartridges.<\/p>\n
          \n
        1. Finish printing, copying, scanning and faxing.<\/li>\n
        2. Wait until the device is ready.<\/li>\n
        3. Place the new drum package, a clean sheet of paper and a black opaque bag or several clean sheets nearby to protect the old unit from light.<\/li>\n
        4. Make sure the kit contains the new CMYK Image Drum, temporary cartridges for initial charging, recycling bags and instructions.<\/li>\n
        5. Prepare a stable, level work surface. Do not place the unit on the edge of a table or on dirty paper.<\/li>\n<\/ol>\n
          \n
          The image drum is sensitive to light and touch<\/strong><\/p>\n
          Do not touch the green cylinders. Do not leave the unit exposed to normal room lighting for more than five minutes, and do not expose it to direct sunlight or bright light. If the work is delayed, cover the drum with black paper or place it in an opaque bag.<\/p>\n<\/div>\n
          How to Correctly Replace the CMYK Image Drum<\/h2>\n
          Step 1. Open the MFP<\/h3>\n
            \n
          1. Leave the device turned on.<\/li>\n
          2. Carefully lift the scanner unit.<\/li>\n
          3. Press the top cover release lever.<\/li>\n
          4. Fully open the top cover.<\/li>\n<\/ol>\n
            The fuser unit may be very hot. Do not touch the area with the warning label and do not put your hands inside the device beyond the consumable handles.<\/p>\n
            Step 2. Remove the Old Unit Together with the Toner Cartridges<\/h3>\n
              \n
            1. Locate the two handles on the combined image drum unit.<\/li>\n
            2. Hold both handles and lift the unit vertically without tilting it.<\/li>\n
            3. Remove the assembly together with the four installed toner cartridges.<\/li>\n
            4. Place it on a level surface protected with clean paper.<\/li>\n
            5. Cover the unit to protect it from light. Do not discard it: the toner cartridges installed on it will still be needed.<\/li>\n<\/ol>\n
              Do not hold the assembly by the toner cartridges and do not place it on the green cylinders.<\/p>\n
              Step 3. Prepare the New Drum<\/h3>\n
                \n
              1. Open the packaging of the new Image Drum immediately before installation.<\/li>\n
              2. Remove all external packaging, shipping locks and protective materials specified in the included instructions.<\/li>\n
              3. Do not remove the temporary initial charging cartridges.<\/li>\n
              4. Check that all four temporary cartridges are installed evenly.<\/li>\n
              5. Move their colored lock levers fully to the left<\/strong>. This secures the cartridges and opens the supply of material for initial charging.<\/li>\n<\/ol>\n
                If the kit is incomplete, the packaging is damaged or the temporary cartridges are missing, stop and confirm the contents with the seller. Do not use the old toner cartridges for initial charging instead of the supplied kit.<\/p>\n
                Step 4. Install the New Unit<\/h3>\n
                  \n
                1. Hold the new unit only by the handles.<\/li>\n
                2. Align the side pins of the unit with the guide slots inside the device.<\/li>\n
                3. Slowly lower the unit vertically.<\/li>\n
                4. Make sure both sides are at the same height and the assembly does not protrude upward.<\/li>\n
                5. Do not press down on the toner cartridges and do not use force.<\/li>\n<\/ol>\n
                  If the unit does not lower fully into place, lift it and align the pins with the slots again. Do not use the cover to force a misaligned assembly into place.<\/p>\n
                  Step 5. Perform Automatic Initial Charging<\/h3>\n
                    \n
                  1. Close the top cover securely until it latches.<\/li>\n
                  2. Carefully lower the scanner unit.<\/li>\n
                  3. Do not press any buttons or send print jobs.<\/li>\n
                  4. Wait approximately four minutes.<\/li>\n<\/ol>\n
                    The MFP will automatically start initial charging. During this process, the mechanism can be heard operating, the Attention\/Status indicator flashes and the display is illuminated. Do not open the cover or disconnect the power. Intermediate messages on the display during this process do not require any action.<\/p>\n
                    Charging is complete when the mechanism stops and the display backlight turns off. The Attention\/Status indicator may continue flashing. On models with a Power Save button, it may light up.<\/p>\n
                    Step 6. Remove the Temporary Cartridges<\/h3>\n
                      \n
                    1. After the mechanism has stopped completely, lift the scanner again and open the top cover.<\/li>\n
                    2. Move the colored lock lever of the first temporary cartridge fully to the right.<\/li>\n
                    3. Lift its right end.<\/li>\n
                    4. Move the cartridge to the right, release the left end and remove it.<\/li>\n
                    5. Remove the other three temporary cartridges in the same way.<\/li>\n
                    6. Place them in the recycling bags provided for this purpose.<\/li>\n<\/ol>\n
                      Do not leave the temporary cartridges in the device for normal printing.<\/p>\n
                      Step 7. Transfer the Toner Cartridges from the Old Drum<\/h3>\n
                      Work with one color at a time to avoid mixing up the positions. The cartridge order from the rear of the device toward the front panel is: Yellow, Magenta, Cyan, Black.<\/p>\n
                        \n
                      1. Uncover the old unit only long enough to remove the first cartridge.<\/li>\n
                      2. Move its colored lock lever fully to the right.<\/li>\n
                      3. Lift the right end and move the cartridge to the right, releasing the left end.<\/li>\n
                      4. Hold the cartridge by the upper center section.<\/li>\n
                      5. On the new drum, insert the left end of the cartridge into the position for the same color.<\/li>\n
                      6. Press the left end against the spring and lower the right end.<\/li>\n
                      7. Gently press down from above and move the lock lever fully to the left.<\/li>\n
                      8. Repeat these steps for the remaining colors.<\/li>\n<\/ol>\n
                        Do not swap cartridges of different colors. After installation, all four cartridges must sit evenly and their lock levers must be in the fully left position.<\/p>\n
                        Step 8. Close the Device and Check the Result<\/h3>\n
                          \n
                        1. Close the top cover and press it down until it latches.<\/li>\n
                        2. Lower the scanner unit.<\/li>\n
                        3. Wait until the consumables check is complete.<\/li>\n
                        4. Make sure the Image Drum message has disappeared and the device reaches the ready state.<\/li>\n
                        5. Print one color page.<\/li>\n<\/ol>\n
                          Pack the old drum in the protective materials from the new kit and recycle it according to local regulations. Do not throw the drum or toner cartridge into a fire.<\/p>\n
                          If Error 340, 341, 342 or 343 Remains<\/h2>\n
                          This group means that the unit is seated incorrectly, not that its life has ended. Reinstall it:<\/p>\n
                            \n
                          1. Turn off the MFP normally: hold the power button for approximately one second, but no longer than five seconds.<\/li>\n
                          2. Wait for the message Shutdown in progress. Please wait.<\/strong> and for the indicator to turn off completely.<\/li>\n
                          3. Wait about ten minutes for the fuser unit to cool down.<\/li>\n
                          4. Lift the scanner and fully open the top cover.<\/li>\n
                          5. Remove the image drum unit using the two handles and immediately cover it from light.<\/li>\n
                          6. Check the side pins and guide slots. Remove only loose paper or packaging material.<\/li>\n
                          7. Return the unit vertically, aligning both sides with the slots.<\/li>\n
                          8. Close the cover until it latches, lower the scanner and turn on the device.<\/li>\n<\/ol>\n
                            If the same error returns, the unit may be lifted by an incorrectly installed transfer belt located underneath it.<\/p>\n
                            How to Reinstall the Transfer Belt<\/h3>\n
                            Perform this check only when the MFP is turned off and has cooled down. Do not touch the black working surface of the belt.<\/p>\n
                              \n
                            1. Remove the image drum unit again and cover it from light.<\/li>\n
                            2. Locate one locking lever on the left and one on the right side of the belt.<\/li>\n
                            3. Lift both levers and rotate them toward the front of the device to the unlocked position.<\/li>\n
                            4. Hold the levers, lift the belt vertically and remove it.<\/li>\n
                            5. Check underneath the belt for a sheet of paper, shipping component or other loose object.<\/li>\n
                            6. Install the belt evenly; the drive gear must be at the rear.<\/li>\n
                            7. Lower it until it is fully seated.<\/li>\n
                            8. Rotate both locking levers toward the rear of the device to lock the belt.<\/li>\n
                            9. Install the image drum unit, latch the cover and lower the scanner.<\/li>\n
                            10. Turn on the MFP and check the message.<\/li>\n<\/ol>\n
                              If the belt does not lower freely, a lever is broken, or error 340\u2013343 remains, stop disassembly and contact service support.<\/p>\n
                              If Image Drum Life Remains After Installing a New Drum<\/h2>\n
                                \n
                              1. Check the part number of the new unit and the full MFP model.<\/li>\n
                              2. Make sure the drum is genuinely new and has not previously been installed in another printer.<\/li>\n
                              3. Confirm whether the approximately four-minute initial charging procedure was completed using the temporary cartridges supplied with the kit.<\/li>\n
                              4. Check that the temporary cartridges were removed only after charging was complete.<\/li>\n
                              5. Reinstall the unit along the side guides.<\/li>\n
                              6. Check the seating of the transfer belt if the unit is raised or an installation error returns.<\/li>\n
                              7. Close the top cover until it latches and wait for the consumables to be detected again.<\/li>\n<\/ol>\n
                                If a new, correct drum does not reset the message, do not perform manual counter initialization. Possible causes include a defective new unit, an incomplete kit, an interrupted initial charging procedure or a fault in the automatic detection mechanism. Keep the packaging and contact the seller to have the consumable checked or replaced.<\/p>\n
                                A Toner Error Appeared After Replacement<\/h2>\n
                                When the drum is replaced, the old toner cartridges are transferred onto it. Therefore, after the Image Drum is successfully detected, a separate toner message may appear.<\/p>\n