220-1201 Printers — Timed 20 Questions

Question 1

A technician is troubleshooting a laser printer that produces a ghost image of the previous page on the current page. The ghost image appears slightly offset. What is the most likely cause?

Accepted Answer

The drum's cleaning blade is worn. Ghosting in laser printers is often caused by a worn or damaged cleaning blade on the drum unit. If the drum is not properly cleaned after each rotation, residual toner remains and transfers to the next page. Replacing the drum unit or cleaning blade resolves the issue.

Answer

The fuser temperature is too high

Answer

The toner cartridge is low on toner

Answer

The laser scanner is misaligned

Question 2

A user's laser printer is producing pages with a repeating horizontal line defect every 3.75 inches. Which component is most likely causing this issue?

Accepted Answer

OPC drum. The distance between repeating defects often matches the circumference of a roller. In laser printers, the OPC drum is typically about 3.75 inches in diameter, so a defect repeating at that interval points to a damaged drum. Other components have different circumferences.

Answer

Fuser roller

Answer

Transfer roller

Answer

Toner cartridge

Question 3

A user reports that their laser printer is producing pages with vertical black streaks. The streaks appear consistently in the same location on every page. Which printer component is most likely causing this issue?

Accepted Answer

Drum unit. Vertical black streaks on a laser printer page are typically caused by a scratched or damaged drum. The drum transfers toner to the paper, and any defect will repeat with each rotation. Cleaning or replacing the drum assembly usually resolves this issue.

Answer

Fuser assembly

Answer

Toner cartridge

Answer

Pickup roller

Question 4

A small office has an inkjet printer that is printing blank pages even though the ink cartridges are full and properly installed. What is the most likely cause of this problem?

Accepted Answer

The printhead is clogged. When an inkjet printer prints blank pages despite full cartridges, the printhead nozzles are often clogged. Ink can dry and block the tiny nozzles, preventing ink from reaching the paper. Running the printer's cleaning cycle or manually cleaning the printhead usually resolves the issue.

Answer

The printer driver is corrupted

Answer

The paper type setting is wrong

Answer

The USB cable is faulty

Question 5

A technician is installing a thermal printer for a retail point-of-sale system. The printer uses direct thermal paper. What must the technician verify to ensure proper operation?

Accepted Answer

The paper is loaded with the coated side facing the print head. Direct thermal printers require heat-sensitive paper that darkens when heated. Using the wrong paper (e.g., thermal transfer paper) will not produce an image. The technician must ensure the paper is compatible with direct thermal printing.

Answer

The printer driver is set to color mode

Answer

The printer is connected via Bluetooth

Answer

The printer has enough memory for graphics

Question 6

A user reports that their laser printer prints fine from Windows, but when they print from a macOS device, the output is garbled with random characters. Both devices are on the same network. What is the most likely cause?

Accepted Answer

The macOS printer driver is incorrect. Garbled output from one OS but not another typically indicates a driver or PPD issue. macOS uses PostScript Printer Description (PPD) files for laser printers, and an incorrect or missing PPD can cause communication errors. Installing the correct driver for macOS resolves the problem.

Answer

The printer's firmware is outdated

Answer

The network cable is faulty

Answer

The printer is set to the wrong emulation mode

Question 7

A customer complains that their inkjet printer's output has horizontal white lines across the page. The cartridges are new and the printer passes a nozzle check pattern. What should the technician check next?

Accepted Answer

Inspect the paper feed rollers. Horizontal white lines on inkjet output often indicate a paper feed issue, such as dirty or worn feed rollers. The roller's surface can lose traction, causing the paper to feed unevenly and creating gaps. Cleaning or replacing the feed rollers typically resolves the problem.

Answer

Replace the printhead

Answer

Clean the encoder strip

Answer

Update the printer driver

Question 8

A technician is troubleshooting a laser printer that frequently jams paper. The jams occur mostly when printing on both sides (duplex). What is the most likely cause?

Accepted Answer

The duplex rollers are worn. Duplex printing requires the paper to be flipped and fed back through the printer, which involves additional rollers and a duplex unit. Worn or dirty duplex rollers are a common cause of jams during duplex operations. Cleaning or replacing these rollers often fixes the issue.

Answer

The paper is too thick for the printer

Answer

The fuser is overheating

Answer

The toner cartridge is low

Question 9

A user reports that their inkjet printer prints colors that are significantly different from what appears on the screen. The printer uses cyan, magenta, yellow, and black cartridges. What should the technician do first to resolve this issue?

Accepted Answer

Run the printer's color calibration utility. Color mismatch between screen and print is often due to lack of color management. The printer and monitor use different color spaces (CMYK vs. RGB). Calibrating the monitor and using ICC profiles ensures consistent color reproduction. This is the first step before replacing hardware.

Answer

Replace all ink cartridges with new ones

Answer

Clean the printhead

Answer

Change the paper type to photo paper

Question 10

A technician is setting up a new network printer for a department. The printer needs to be accessible to all users on the same subnet without a dedicated print server. Which configuration method should the technician use?

Accepted Answer

Assign a static IP address to the printer. Assigning a static IP address to the printer ensures it has a permanent address on the network, allowing all users on the subnet to connect directly. DHCP could change the IP, breaking connections. A static IP is the simplest method for direct network printing without a server.

Answer

Connect the printer via USB to a user's workstation and share it

Answer

Use DHCP with a short lease time

Answer

Install a print server on a domain controller

Question 11

A user's laser printer is displaying a 'Replace Fuser' error message, but the pages are printing correctly. The printer has a maintenance kit that includes a fuser, transfer roller, and pickup rollers. What should be done?

Accepted Answer

Replace the fuser using the maintenance kit. The 'Replace Fuser' error is a proactive maintenance indicator, not necessarily a sign of failure. If print quality is fine, the fuser may still be functional, but the printer's page count has reached the recommended replacement interval. Replacing the fuser as part of the maintenance kit prevents future issues and clears the error.

Answer

Ignore the error and continue printing

Answer

Reset the printer's maintenance counter without replacing anything

Answer

Replace only the toner cartridge

Question 12

A customer reports that their laser printer is producing pages with faint, streaky text and occasional blank spots. The toner cartridge is new, and the printer's maintenance kit was replaced last month. Which component should be inspected next?

Accepted Answer

Imaging drum. Faint, streaky text and blank spots on a laser printer with a new toner cartridge and recent maintenance kit replacement typically point to the imaging drum. The drum transfers toner to the paper; if it is worn or damaged, it cannot hold a proper charge, causing these symptoms. The fuser assembly would cause smudging or toner not fused, the transfer roller would cause misalignment or poor transfer, and the pickup rollers would cause paper jams or misfeeds.

Answer

Fuser assembly

Answer

Transfer roller

Answer

Pickup rollers

Question 13

A user's laser printer is producing pages with a gray background (toner dust) on the entire page. The toner cartridge is genuine and was recently replaced. The printer has printed several hundred pages since the change. What is the most likely cause?

Accepted Answer

The imaging drum is worn or damaged. A gray background or toner dust on laser prints is often caused by a faulty or worn imaging drum that cannot hold a proper charge, leading to toner being deposited where it shouldn't. It can also be due to a high-voltage power supply issue, but the drum is the more common replaceable component. The toner cartridge being genuine rules out compatibility issues.

Answer

The toner cartridge is defective

Answer

The primary corona wire is dirty

Answer

The fuser temperature is too high

Question 14

A network printer in a busy law office is shared by 15 users. Several users report that their print jobs are not being output, but the printer shows no error lights and the print queue appears empty. The printer is connected via Ethernet. Which step should be taken first?

Accepted Answer

Restart the print spooler service on the print server. When a network printer appears idle but jobs disappear, the issue is often with the print spooler on the server or client. The spooler may be stalled or corrupted, causing jobs to be lost without error. Checking the print queue on the server and restarting the spooler service is the appropriate first step.

Answer

Replace the network cable

Answer

Power cycle the printer

Answer

Reinstall the printer driver on all workstations

Question 15

A technician is deploying a 3D printer that uses fused deposition modeling (FDM) in a school lab. After several test prints, the prints are warping at the edges and not adhering to the build plate. The filament is PLA, and the build plate is heated. Which adjustment should be made first?

Accepted Answer

Adjust the bed leveling or Z-offset to ensure proper first layer height. Warping and poor adhesion in FDM printing are often caused by an incorrect first layer height or bed leveling. If the nozzle is too far from the bed, the filament does not squish enough to stick. Adjusting the bed leveling or Z-offset ensures proper first layer adhesion.

Answer

Increase the nozzle temperature by 10°C

Answer

Apply a layer of glue stick to the build plate

Answer

Reduce the print speed

Question 16

A small office uses an inkjet printer that has started leaving horizontal white lines across printed documents. The printhead cleaning cycle has been run twice without improvement. Which step should be taken next?

Accepted Answer

Perform a manual printhead cleaning using distilled water or a cleaning solution. Horizontal white lines on inkjet output indicate clogged nozzles in the printhead. If cleaning cycles fail, a more thorough cleaning using a manual method or a printhead soak may be needed. Replacing ink cartridges or the entire printer would be premature, and adjusting print settings does not address the physical clog.

Answer

Replace the ink cartridges

Answer

Adjust the print quality settings to 'Best'

Answer

Replace the printer

Question 17

A user reports that their color laser printer is producing prints with a repeating vertical black line down the left side of every page. The line appears at regular intervals. Which component is most likely causing this defect?

Accepted Answer

Imaging drum. Repeating marks on laser printer output often indicate a damaged component that rotates, such as the imaging drum or fuser roller. The distance between repeats helps identify the source. A vertical line at regular intervals is characteristic of a scratch or debris on the drum.

Answer

Toner cartridge

Answer

Transfer belt

Answer

Fuser roller

Question 18

A technician is troubleshooting an impact printer that is producing faint characters on multipart forms. The ribbon is new, and the print head is clean. The forms are properly aligned. Which adjustment should be made?

Accepted Answer

Adjust the platen gap to bring the print head closer to the paper. Faint characters on multipart forms with a new ribbon and clean print head indicate insufficient impact force. Impact printers have a platen gap adjustment that controls the distance between the print head and the platen. If the gap is too wide, the pins cannot strike through all layers effectively.

Answer

Increase the print head temperature

Answer

Replace the platen

Answer

Change the paper thickness setting to a thicker setting

Question 19

A small business has an inkjet printer that prints blank pages even though the ink cartridges are full. The printer passes the nozzle check pattern test. What should be done next?

Accepted Answer

Replace the printhead. If the nozzle check is fine but pages are blank, the issue is likely with the ink delivery system, such as a clogged or defective printhead. The printhead may need cleaning or replacement. Other causes like driver issues or incorrect settings would not produce a successful nozzle check.

Answer

Update the printer driver

Answer

Check the paper type setting

Answer

Perform a power cycle

Question 20

A technician is setting up a new thermal printer for a retail point-of-sale system. The printer uses direct thermal technology and will print receipts. After connecting the printer via USB and installing the driver, the test page prints, but the text is very faint. What is the most likely cause?

Accepted Answer

The printhead darkness setting is too low. Faint output on a direct thermal printer is typically due to insufficient heat from the printhead. The printhead's temperature setting or the media's thermal sensitivity may be mismatched. Adjusting the darkness or heat setting in the driver or printer configuration is the correct fix.

Answer

The printer driver is incorrect

Answer

The thermal paper is loaded upside down

Answer

The USB cable is faulty