LAV8ORG
Printing Apprentice
- Joined
- Aug 25, 2016
- Messages
- 7
- Reaction score
- 2
- Points
- 18
- Printer Model
- from epson 9900 to canon selph
Ok, quick background, this not-particularly-worn Artisan 730 developed a horizontal banding issue after sitting for a day. One channel just isn't firing correctly. The nozzle check is flawless, alignment is fine. The spacing isn't consistent and it's restricted to one channel, so it probably isn't a page feed or sensor error. I've eliminated driver, print processor, OS, and connection type as culprits. In much digging I found one report of a similar problem mostly disappearing at lower DPIs, and that is also the case here; there's a strong correspondence between printer DPI and the visibility of the banding.
Anywho, I've swapped the mainboard to no avail, so it's down to the ribbon cables (which look fine) and the head. I've also already attempted further seating both ribbons. My experience with electronic repair has me inclined to think there's a solder failure on one of the ribbon terminals, but only one is (barely) accessible. Considering that there are still screws that can be removed on the head after pulling it from the carriage, is it possible to continue disassembling the head to gain access to the circuit board without permanently damaging it? Or, better yet, have I overlooked something?
Anywho, I've swapped the mainboard to no avail, so it's down to the ribbon cables (which look fine) and the head. I've also already attempted further seating both ribbons. My experience with electronic repair has me inclined to think there's a solder failure on one of the ribbon terminals, but only one is (barely) accessible. Considering that there are still screws that can be removed on the head after pulling it from the carriage, is it possible to continue disassembling the head to gain access to the circuit board without permanently damaging it? Or, better yet, have I overlooked something?