We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Lexmark magenta developer carrier unit in plastic housing

Lexmark

Lexmark 40X3745 Magenta Developer Carrier for C935, X940e, X945e

SKU CH-T9B0-9S29X

Magenta developer carrier for Lexmark C935 series printers and X940e, X945e MFPs

  • Product categoryPrinter Accessories
  • Product categoryOther Accessories
  • Product colorMagenta
  • Compatible withFor C935 Series Printers & X940e & X945e MFPs
  • Genuine Lexmark magenta developer carrier ensures accurate colour output
  • Designed for Lexmark C935 series printers and X940e and X945e MFPs
  • Original equipment manufacturer part maintains printer reliability
  • Supplied as a single unit for straightforward replacement
  • Compatible with C935DN, C935DTN, C935HDN, X940E and X945E models

Genuine Lexmark magenta developer carrier

The Lexmark 40X3745 is an original equipment manufacturer component designed for the C935 series printers and the X940e and X945e multifunction devices. It supplies the magenta developer material required for colour output in these specific models. Offices running the listed Lexmark hardware use this unit to maintain print quality. It is not suited for printers outside the stated compatibility list.

Passive supply unit with no power or cooling needs

This developer carrier operates without fans, heat sinks or an independent power connection. It draws no electricity and produces no audible noise during printing cycles. Thermal management is handled entirely by the host printer's internal systems. The component adds negligible weight to the consumable supply chain.

Single-unit pack simplifies replacement workflow

Each package contains one magenta developer carrier, allowing technicians to swap only the colour that reaches end of life. The genuine Lexmark formulation ensures consistent toner adhesion and colour fidelity across the rated yield. No additional tools, software updates or calibration kits are bundled or required for installation.

How it compares

Measured against everything we stock in Print & Scan Accessories, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 80% of the 5,855 comparable items (median $91.99).

Specifications

Product
Brand nameLEXMARK
Model name40 × 3745
Product categoryPrinter Accessories
Product colorMagenta
Compatibility
Compatible withFor C935 Series Printers & X940e & X945e MFPs

Questions about this item

How do I install the 40X3745 magenta developer carrier in my C935 printer?

Open the front cover, pull the magenta photoconductor unit out, slide the old carrier out of the frame, insert the new 40X3745 carrier until it clicks, reinstall the photoconductor, and close the cover.

When will the 40X3745 magenta developer carrier need replacement?

Replace the carrier when print quality shows magenta streaks, faded colour, or the printer displays a developer-life warning for the magenta station.

What limit appears first during long print runs with the 40X3745 magenta developer carrier?

The developer material inside the carrier depletes first, causing magenta density to drop before the photoconductor or toner reaches end of life.

More in Print & Scan Accessories

Similar items