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Printed text from a laser printer looks fine, but it smudges and rubs off when touched with a finger. Which component is most likely failing?

Le texte imprimé par une imprimante laser semble correct, mais il bave et s'efface quand on le touche du doigt. Quel composant est très probablement défaillant ?

Answers
AThe toner cartridge chip, which counts the pages printedLa puce de la cartouche de toner, qui compte les pages imprimées
BThe paper pickup rollerLe rouleau de prise papier
CThe printer's network cardLa carte réseau de l'imprimante
DThe fuser, which should melt the toner onto the paperL'unité de fusion, qui doit faire fondre le toner sur le papier
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