What are the wearable parts of a UV printer? These are the components that manufacturers typically do not provide warranty coverage for. They mainly include small parts in the ink delivery system, as well as the encoder strip, decoder, and the printhead.
First, the components inside the ink delivery system:
Ink damper (ink cartridge): Generally recommended to be replaced every 6–8 months.
Capping station (printhead cap/moisture cap): Can last about 8–12 months.
Ink pump: Quite durable — usually no problem for about two years.
Special note: If your machine has been idle for three months without being turned on, it is best to replace the entire ink delivery system — including the ink tubes, pump, and capping station — before restarting. Otherwise, you may experience ink flow issues, leading to printing defects like ink streaking or missing nozzles.
Second, the encoder strip and decoder:
The encoder strip functions like the printer's ruler — it has dense vertical lines that the decoder reads to obtain signals, which then direct the printer's movement distance and position. Under normal use, these are quite durable and generally do not need replacement for 3–4 years.
Third, the most important component of a UV printer: the printhead.
The printhead can be considered the heart of the UV printer. It is the most important part and also the one that requires the most careful maintenance. For example, take the Ricoh G6 printhead — there is no fixed answer for its lifespan. The manufacturer's official data suggests five years, but in actual use, the lifespan of a printhead is highly dependent on the frequency of use, ink quality, and daily maintenance practices. Generally speaking, with normal use, 3–4 years is very possible. If you notice a decline in print quality — such as ink streaking or missing nozzles — the printhead may be clogged. Be sure to perform careful printhead maintenance every day.