The answer is a failed printhead that needs replacement. This is correct because when an inkjet printer prints blank pages despite full ink cartridges and no error messages, the printhead is the component responsible for ejecting ink through the nozzles; a completely blank nozzle check pattern confirms that no ink is being delivered, indicating an electrical or mechanical failure rather than a simple clog, which would typically show a partial or streaky pattern. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your ability to distinguish between a clogged printhead—often resolved with cleaning cycles—and a failed printhead that requires replacement. A common trap is assuming full cartridges guarantee ink flow, but the printhead acts as the final gatekeeper. Memory tip: “Blank page, full tank? Printhead’s rank.”
220-1201 Printers Practice Question
This 220-1201 practice question tests your understanding of printers. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A user reports that their inkjet printer prints blank pages even though the ink cartridges are full and the printer shows no error messages. The technician has already checked the ink levels and performed a nozzle check, which showed no ink on the test pattern. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The printhead has failed and needs to be replaced.
Blank pages despite full cartridges and no errors often indicate a failed printhead that cannot deliver ink to the nozzles. The nozzle check pattern being blank confirms no ink is being ejected. A clogged printhead might show partial patterns, but a completely blank test suggests electrical or mechanical failure of the printhead.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The printer driver is corrupted and needs reinstallation.
Why it's wrong here
A corrupted driver might cause garbled output or errors, but not a complete lack of ink delivery when the printer otherwise functions.
✓
The printhead has failed and needs to be replaced.
Why this is correct
A failed printhead cannot move or eject ink, resulting in blank pages even with full cartridges.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The paper type setting is set to 'transparency'.
Why it's wrong here
Incorrect paper settings might affect print quality but would not cause a completely blank nozzle check pattern.
✗
The ink cartridges are not properly seated.
Why it's wrong here
Improper seating usually triggers an error message, and the printer would not show full ink levels.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Command / output trap
A corrupted driver might cause garbled output or errors, but not a complete lack of ink delivery when the printer otherwise functions.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 220-1201 NAT questions on configuration and troubleshooting.
Printers — This question tests Printers — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The printhead has failed and needs to be replaced. — Blank pages despite full cartridges and no errors often indicate a failed printhead that cannot deliver ink to the nozzles. The nozzle check pattern being blank confirms no ink is being ejected. A clogged printhead might show partial patterns, but a completely blank test suggests electrical or mechanical failure of the printhead.
What should I do if I get this 220-1201 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 220-1201 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. 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?
medium
A.Update the printer driver
✓ B.Replace the printhead
C.Check the paper type setting
D.Perform a power cycle
Why B: 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.
Variation 2. 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?
easy
A.The printer driver is corrupted
✓ B.The printhead is clogged
C.The paper type setting is wrong
D.The USB cable is faulty
Why B: 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.
Last reviewed: Jun 18, 2026
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This 220-1201 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1201 exam.
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