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Small green circuit board with 7-pin cable attached

YINGHUA

YINGHUA MHJM-V103-WYQ Chip Decoder Board for Epson Stylus Pro 7800 9450 7880 9800 7880C 9880C 7450 9880 7-pin

SKU CH-W6MJ-4CVAM

Replacement chip decoder board with 7-pin cable for Epson Stylus Pro 7800, 9450, 7880, 9800, 7880C, 9880C, 7450 and 9880 printers

  • Product categoryReplacement Parts
  • Restores cartridge recognition on supported Epson Pro printers
  • Direct replacement for MHJM-V103-WYQ decoder board
  • 7-pin cable ensures secure connection to printer mainboard
  • Compatible with Stylus Pro 7800 9450 7880 9800 7880C 9880C 7450 9880

Chip Decoder Board for Epson Pro Printers

This replacement part is a chip decoder board designed for Epson Stylus Pro large-format printers. It serves technicians and print shops that need to restore cartridge recognition on compatible models. The board carries the MHJM-V103-WYQ designation and connects via a 7-pin cable. It addresses a specific electronic function inside the printer's ink system.

7-Pin Interface for Listed Stylus Pro Models

The board fits the 7800, 9450, 7880, 9800, 7880C, 9880C, 7450 and 9880 models through its 7-pin connector. Installation requires access to the printer's internal cartridge board slot and basic disassembly tools. It frees the printer from chip-related errors that halt production. Buyers needing a different pin count or a board for other Epson series should look elsewhere.

How it compares

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Price $92.99
Typical for this category: the median of 5,855 items is $91.99.

Specifications

Product
Product categoryReplacement Parts

Questions about this item

Will the MHJM-V103-WYQ board maintain reliable chip decoding during continuous high-volume printing on the Epson Stylus Pro 9880?

The MHJM-V103-WYQ is a direct replacement decoder board designed for the listed Epson Stylus Pro models including the 9880. It uses the original 7-pin cable interface to maintain stable communication between the cartridge chips and printer during sustained print runs.

Does the decoder board generate noticeable heat or require extra cooling when the Epson Stylus Pro 7800 runs all day?

The board is a passive electronic component with no active circuitry that produces significant heat. It draws minimal power through the 7-pin connection and operates at ambient temperature inside the printer chassis without additional cooling requirements.

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