Printhead Not Recognized After Installation: Cable, Board, and Firmware Checklist
A new head that the printer won't see is almost never a dead head. Work through this checklist in order — cable, orientation, board, head rank, firmware — before you assume the part is faulty or fi...
Océ Arizona (Canon) Printhead Guide: 350 and 460 GT Printhead Kits
Canon's Océ Arizona flatbeds are among the most common UV machines still in daily service in US sign shops. Their printheads ship as model-specific kits, and the 350 and 460 GT kits aren't intercha...
HP Scitex Printheads Explained: FB700, FB7500 and XP-Series Modules
HP's industrial Scitex flatbeds don't use the consumable thermal heads of the Latex line. They use piezo modules that are serious capital parts. Which module each Scitex generation uses, what a "mo...
Mutoh ValueJet Printhead Replacement: Compatible Parts, Dampers, Cables and Maintenance Stations
A new ValueJet head installed on an old cable, tired dampers and a worn maintenance station is a new head on borrowed time. The parts list — by ValueJet generation — that should go in the cart with...
Mutoh Printhead Guide: ValueJet, XpertJet, RJ and DraftStation — Which Head Each Model Uses
Mutoh badges every head with its own DG/DH part number, but most of them are Epson engines underneath. A model-by-model map from ValueJet, XpertJet, RJ and DraftStation printers to the exact head p...
Replace the Printhead or Replace the Printer? A Decision Framework for Sign Shops
A dead head on a ten-year-old Roland forces the question every sign shop eventually faces. Here's a five-test framework for deciding whether a $1,350 head is the smart repair or the first payment o...
