BOARD ASSY SUB - 2142883

2142883 – Sub board (Board Assy Sub) – Epson SureColor

The sub board (Board Assy Sub, 2142883) is fitted to Epson printers. It provides the electronic control of a machine sub-system and passes the signals to the main board.

Its designation in the Epson parts list is "BOARD ASSY.,SUB D". According to the SureColor SC-S30600 service manual, the "Sub-D Board" is mounted under the upper cover, in the printer frame and not on the carriage; its "CR Unit" connection diagram shows the print head flat cables arriving at connectors CN400 and CN401.

Technical specifications

• OEM reference: 2142883
• Manufacturer: Epson
• Part type: Sub board
• Manufacturer designation: "BOARD ASSY.,SUB D" ("Sub-D Board" in the service manual)
• Connectors: CN400 and CN401 (head relay flat cables, "Head Relay FFC")
• Location: Under the upper cover, in the printer frame (not on the carriage)
• Fixing: 4 silver M3x8 "S-tite" screws
• Note: The equivalent reference 2139383 shown on this page is taken from our data; none of the distributors or parts lists consulted confirm it. Check it against the label on the part before relying on it. The designation "Sub board (Board Assy Sub)" is imprecise: the Epson parts list says "BOARD ASSY.,SUB D", a board distinct from the "Sub Board" mounted on the carriage. No error code specific to this board is publicly documented.
• Shipping: Shipped ready to install

Compatibility & use

• Epson SureColor SC-B7000
• Epson SureColor SC-B7070
• Epson SureColor SC-B7080
• Epson SureColor SC-F7000
• Epson SureColor SC-F7070
• Epson SureColor SC-F7080
• Epson SureColor SC-S30610
• Epson SureColor SC-S30650
• Epson SureColor SC-S30670
• Epson SureColor SC-S30680
• Epson SureColor SC-S40600
• Epson SureColor SC-S40610
• Epson SureColor SC-S40650
• Epson SureColor SC-S40670
• Epson SureColor SC-S40680
• Epson SureColor SC-S30600
• Removal according to the SC-S30600 service manual: loading lever, panel, upper right cover, rear left cover, upper left cover, then upper cover; disconnect all FFC flat cables before removing the 4 screws.
• On reassembly, observe the mounting direction of the board: the service manual requires it to be installed the right way round ("make sure to install it in the correct orientation").
• Before ordering, check the designation on the label: Epson distinguishes the "Sub Board" (on the carriage) from the "Sub-D Board" (under the upper cover); only the "BOARD ASSY.,SUB D" matches 2142883.

Function

• Relay board for the print head flat cables (connectors CN400 / CN401) between the main board and the carriage, according to the "CR Unit" connection diagram in the SC-S30600 service manual
• Provides the electronic control of a sub-system
• Passes the signals to the main board
• Acts as the interface between firmware and hardware

Signs of wear

• Print heads not recognised or not driven: possible cause if the CN400 / CN401 flat cable link or the board itself is faulty (check the flat cables first)
• Sub-system not driven
• Electronic errors
• Loss of internal communication
• Erratic behaviour or machine stops

Replacing this part restores the machine to proper working order.

Equivalent references : 2139383

Related parts

• 1574106 — head relay flat cable "HARNESS,HEAD ASSY,ASP" ("Head Relay FFC"), connected to connectors CN400 / CN401

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.