激光的发明,使人类开辟了光通信的新时代,有人把激光称作信息时代的先锋。激光作为一种人造光,其英文称为laser,译音为莱塞或雷射,是我国那位著名科学家给它起了一个中国名“激光”?()
A technician is servicing a customer’s color laser printer and notices excess toner in the printer.Which of the following tools would BEST assist the technician in removing the excess toner?()
A user states that their laser printer prints black and white streaks about half an inch wide down the left side of every page. Which of the following components MOST likely needs replacing?()
A technician has added memory to a laser printer. To allow the printer driver software to use the additional memory, the amount of memory should be modified in:()
Which of the following stages in the laser print process attracts toner to the latent image on the photoconductor?()
Practice 4 ● You work for a company which produces laser printers. You are visiting another company, to buy some computer software for your department. They have expressed an interest in your company’s printers and you would like to take twenty brochures and three sample printers with you.
● Write a short note to Mr. Jim Asana, the sales manager.
● Asking for his permission to take these items.
● Explaining why you want them.
● Mentioning the time and date when you want to collect them.
● Write 40—50 words on a separate sheet.
Which of the following is the recommended maintenance for a laser printer? ()
The writer thinks the most important use of the laser is in the field of ______.
A laser printer keeps printing out crumpled pages from the third tray. Which of the following is the MOST likely explanation?()
A color laser printer is producing pages where the ink smears when touched. Which of thefollowing components should be replaced?()