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Can KJ4A and KJ4B replace each other
confirm by old relay model and wiring position Variant Options Time Relay + Base (Relay - 007) Available Options
Source Note LavaInk lists Roland OEM encoder strip / sheet linear scale 1000003665 for RA-640
Model B (Adapter Plate - 001 - 1)
Reference model: 3204 Polaris
Roland Raster Encoder Strip for XJ640 / SJ640 Gen6 Can KJ4A and KJ4B replaceProduct Overview Roland Raster Encoder Strip for XJ640 SJ640 is a replacement raster encoder strip linear scale for compatible Roland printer models. The encoder strip provides carriage position reference for the encoder sensor and helps reduce positioning errors,banding and carriage initialization issues. Compatibility Use reference: XJ640,SJ640,Roland XJ640,XC540,LEC540,Roland XC540,Roland LEC540,Roland SJ640. SKU Printer Use Reference Ordering