CompTIA A+ Core 1 (220-1201) — Question 2

A technician is troubleshooting an all-in-one laser printer that prints a vertical line when making copies and scans. When users print or receive faxes, the output from the printer is correct. Which of the following should the technician examine to determine the cause of the issue?

Answer options

• A. The pickup rollers
• B. The corona wire
• C. The document feeder
• D. The drum assembly

Correct answer: C

Explanation

The document feeder is likely the cause of the vertical line issue during copying and scanning, as it feeds the document through the scanner. The other components, such as the pickup rollers, corona wire, and drum assembly, would not typically impact the scanning or copying process but could affect printing quality instead.