Humidity is causing the paper to stick together.
The paper is sticking to the corona wire and causing the jam.
A4 paper is being used and may not be supported by laser printers.
The fusion roller is dirty and pulling too many sheets of paper.
第1题：
A. Pickup rollers
B. Print head
C. Drum
D. Fuser
第2题：
A laser printer prints pages with a gray background. Which of the following is the MOST possible cause of the problem? （）
第3题：
A. The printer will print according to specification.
B. The printer will stop printing immediately.
C. The printer will take longer to print.
D. The printer will print blank sheets of paper
第4题：
A user reports that printed pages are smearing after the pages come out of a laser printer. Which of the following is the MOST likely problem?（）
第5题：
A shipping department is reporting that a laser printer in the receiving area is becoming jammed because the printer attempts to pull several sheets of paper for each print.Which of the following may be the cause？（）
第6题：
Ink-jet printer belongs to nonimpact printers in which the characters are formed by projecting particles or droplets of ink on to paper.(71) printer is also a nonimpact printer in which the characters are produced by applying hot elements to heat-sensitive paper directly or by melting ink from a(72) on to plain paper. Electrostatic printer creates an electrostatic latent image, which is then made visible by a toner and transferred and fixed on paper. An electrostatic printer may be used in some instances as a(73). Laser printer creates, by means of a laser beam directed on a(74) surface, a latent image which is then made visible by a toner and transferred and fixed on paper. Magnetographic printer creates, by means of magnetic heads operating on a metallic drum, a latent image which is then made visible by a toner and transferred and fixed on paper. Computer-output-microfilm (COM) printer produces on a photographic film a(75) of each page.
A．Hot
B．Warm
C．Heat
D．Thermal
第7题：
A technician receives a printer that is printing ink smudges on random sheets of paper. Which of the following should the technician try FIRST？（）
第8题：
A.Transfer roller
B.Paper type
C.Print head
D.Fuser
第9题：
A laser printer keeps displaying, ‘Paper Jam – Front Door’. It does not matter which tray or paper type the printer is using. Which of the following is the MOST likely reason why the printer is having this issue?（）
第10题：
Which of the following will MOST likely happen if a laser printer displays ‘15% fuser remaining’?（）