Konica Minolta DV-313K Developing Unit - Black - A7U403D


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The Konica Minolta DV-313K Black Developing Unit (A7U403D) is designed for professional high-volume office environments that require consistent, high-quality black-and-white print output. It serves as a critical component for maintaining print density and reliability in compatible Bizhub multi-function printers, offering an impressive lifespan of up to 600,000 pages. While it provides exceptional durability and reduces maintenance frequency, it requires precise installation to ensure optimal performance and avoid image quality issues.
| Colour | Black |
|---|---|
| Model Part Number | A7U403D |
| Brand | Konica Minolta |
This unit is compatible with the Konica Minolta Bizhub C 368, C 308, and C 258.
The unit is rated for an estimated yield of 600,000 pages.
Yes, this is an original Konica Minolta developing unit, identified by the MPN A7U403D.
Replacement is generally indicated by the printer's internal counter or when print quality begins to show consistent defects despite proper maintenance.
No, the developing unit is a separate component from the toner cartridge and must be installed independently.
Check if the developing unit is seated correctly and inspect the magnetic roller for any debris or foreign objects.
Ensure the connector pins are fully engaged and the unit is locked firmly into place; restart the machine to clear the error.
This unit is compatible with the Konica Minolta Bizhub C 368, C 308, and C 258. When installing, ensure the printer is powered down and that the internal drum area is free of debris. Always handle the developing unit by the provided handles to avoid touching the magnetic rollers, as oils from human skin can affect printing performance. Regular inspection of the printer's internal cleanliness is recommended every time a developing unit is replaced to prevent contamination of the new component.