CR Encoder Assy - DG-42947

CR Encoder Assembly — Mutoh ValueJet 1324 / 1638 / 2638 — DG-42947

The CR Encoder Assy (part no. DG-42947) is the print carriage encoder fitted to Mutoh ValueJet large-format printers. It reads position data from the encoder strip to determine the exact position of the carriage on the horizontal axis in real time.

This sensor transmits positioning data to the motherboard, which synchronises the firing of the nozzles with the carriage’s movement. This precision ensures perfect alignment of the ink droplets and consistent print quality, even in high-speed bidirectional mode.

A genuine Mutoh part, the CR Encoder Assy is replaced in the event of a reading fault causing print misalignment or encoder errors.

Technical specifications

• OEM Part Number: DG-42947
• Type: Carriage encoder sensor (CR Encoder Assy)
• Position: Print carriage (X-axis)
• Function: Optical reading of the encoder strip
• Manufacturer: Mutoh
• Origin: Mutoh OEM part

Compatibility and use

• Mutoh VJ-628X
• Mutoh VJ-1324X
• Mutoh VJ-1624WX
• Mutoh VJ-1627MH / VJ-1628MH
• Mutoh VJ-1638X / VJ-1638WX / VJ-1638UH / VJ-1638UH2
• Mutoh VJ-1938X / VJ-1938WX / VJ-1938TX
• Mutoh VJ-2638 / VJ-2638X
• Mutoh VJ-426UF / VJ-626UF
• Mutoh XPJ-461UF / XPJ-661UF / XPJ-1462UF
• Mutoh XPJ-1641SR / XPJ-1682SR / XPJ-1682UR / XPJ-1682WR

Function

• Reads the exact position of the print carriage on the encoder strip
• Transmits positioning data to the motherboard in real time
• Synchronises nozzle firing with carriage movement
• Ensures precise alignment of ink droplets on the media
• Enables high-resolution printing and bidirectional registration

Possible symptoms in the event of a fault

• Recurring horizontal misalignments between print passes
• Vertical bands or visible aliasing on printouts
• Encoder error message on the control panel
• Carriage no longer positions correctly or overshoots its travel
• Cal