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  1. Question Roland XF-640 service call 0340

    Hi everyone, I have problem with setup media on Xf-640. I get service call 0340. I try clean optical sensor on carriage, but maybe this is linked with magnetic sensor and magnes behind carriage. Someone have service manual for this machine or solution how fix this error? Thanks and regards.

  3. Question Epson 7800 Fast Jumbo 2 convert to UV

    Hi everyone, In our company we have Epson 7800 Fast jet jumbo 2, old printer but still working, and we have idea to convert it to 2XCMYK. First Cmyk will by normal pigment ink, but second CMYK we plan to supply UV ink, and add UV lamp to carriage. How are You thinking, this idea is may working...
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