An inkjet printer leaves blank bands in one color, and its nozzle check shows gaps in that color. Which maintenance fixes the bands?
Select an answer to reveal the explanation.
Short Explanation
The nozzle check is an eye chart for the spray holes, and one color is missing lines. You clean those inkjet nozzles and replace the head if the chart stays broken. A laser heater, a dot-matrix ribbon, and a double-sided unit do not spray that ink.
Full Explanation
An inkjet nozzle check prints a pattern from the head. Gaps in one color mean those nozzles are clogged or the head has failed, which is also why the pages show blank bands. Cleaning the nozzles is the maintenance step, and a head that still shows gaps after a clean is replaced. A laser fuser melts toner. This printer is an inkjet and has no fuser. An impact ribbon is the ink source for a dot-matrix printer. It does not feed an inkjet head. A duplex unit turns the page over. It does not punch a missing color into a nozzle check. Exam caveat: a few cleaning cycles are enough. Endless cleaning empties the cartridge and can overheat the head. Operational check: run the nozzle check after cleaning and confirm the missing color prints as a solid pattern. Stop after a couple of cleaning cycles if the gaps remain, and replace the head instead of emptying the cartridge. File the before-and-after nozzle checks with the ticket. If the second nozzle check is solid, return the printer to the counter.