GENUINE HP OEM • NEW PULL HP Color LaserJet Pro Engine Controller PCB Assembly For M254dw, M281cdw and M281fdw • RM2-9574 / RM2-9571 Restore control of essential print-engine operations in a compatible HP Color LaserJet Pro printer with this genuine HP OEM engine controller PCB assembly. This internal controller coordinates multiple mechanical and electrical functions throughout the printer’s color imaging, paper-feed and automatic duplex systems. New Pull Condition This genuine OEM component was removed from a new or unused printer during equipment disassembly. It is not factory sealed and may not include original HP retail or service packaging. Minor installation, removal, handling or storage marks may be present and do not negatively affect functionality. Please select or confirm your exact printer model prior to shipment. Production revisions and board markings may vary by model. Compatibility should be verified using the printer model, duplex configuration and part number. Product Details Manufacturer HP Product Type Engine Controller PCB Assembly Primary Service Part Number RM2-9574-000CN / RM2-9574 Associated PCB Number RM2-9571 Brand Genuine HP OEM Configuration Automatic-duplex printer models Condition New Pull Compatible Printer Models HP Printer Model Product Number HP Color LaserJet Pro M254dw T6B60A HP Color LaserJet Pro MFP M281cdw T6B83A HP Color LaserJet Pro MFP M281fdw T6B82A Duplex Controller—Verify Before Ordering RM2-9574 is identified as the engine controller for automatic-duplex M253–M254 and M278–M281 configurations. Simplex or non-duplex printer configurations can use a different engine controller. Do not order solely by printer-series number. Engine Controller Function The engine controller helps coordinate essential print-engine operations, including: Main motor and internal drive-system operation Paper pickup, feeding and delivery timing Automatic duplex paper-path operation Sensor, switch, clutch and solenoid communication Color image-formation timing and engine sequencing Communication between the print engine and formatter electronics Monitoring of multiple internal printer components Common Symptoms of a Faulty Engine Controller A defective engine controller may contribute to symptoms such as: Printer failing to complete engine initialization Main motor or internal drive components failing to operate Unexplained paper-feed or duplex-operation failures Recurring sensor or actuator errors after mechanical components have been inspected Intermittent print-engine communication problems Printer powering on but failing to begin the printing sequence Motor-control or internal engine errors These symptoms may also be caused by the formatter, low-voltage power supply, motors, sensors, cables, fuser, duplex assembly or other printer components. Error messages alone do not guarantee that the engine controller is defective. Proper diagnosis is strongly recommended before ordering. What Is Included? One genuine HP OEM engine controller PCB assembly Installed components and brackets shown in the product photographs Only the items specifically pictured or stated in the listing What Is Not Included? Formatter or main logic board Low-voltage power supply Control panel or touchscreen Wireless or network board Fuser, transfer belt, motors or duplex drive assembly Cables and wire harnesses unless shown Printer, toner cartridges or installation tools Any component not shown in the product photographs Installation Information Professional installation is strongly recommended. This is an electrostatic-sensitive circuit board and should be handled using proper ESD protection. Disconnect the printer from power and allow the fuser area to cool before beginning service. During installation, carefully inspect and reseat all cables and connectors. The replacement board must match the printer’s exact model, duplex configuration and applicable production revision. Installation should be performed by a technician familiar with HP Color LaserJet Pro print-engine electronics. Condition note: “New Pull” means the component was removed from a new or unused machine and is supplied without factory-sealed retail packaging. Minor cosmetic evidence of installation, removal, handling or storage may be present. These cosmetic signs do not negatively affect functionality. Frequently Asked Questions Is this a genuine HP part? Yes. This listing is for a genuine HP OEM engine controller assembly supplied in new-pull condition. What is the difference between RM2-9574 and RM2-9571? RM2-9574 is the primary HP service-assembly number associated with this controller. RM2-9571 may appear as an identifying number on the PCB. Both numbers are provided to help identify the assembly. Is this the printer’s formatter board? No. This is the engine controller PCB. The formatter or main logic board is a separate component. Will this fit non-duplex models? This assembly is intended for compatible automatic-duplex configurations. Simplex models can use a different engine controller and should not be assumed compatible. Will replacing this board repair every engine-related error? No. Similar symptoms may originate from several mechanical or electrical components. Proper diagnosis is recommended before replacing the board. Questions About Compatibility? Please contact us with your complete printer model and existing board number before purchasing.
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