- A
The printer is out of paper.
Why wrong: Out-of-paper would produce no print or an error, not garbled text.
- B
The Bluetooth signal is weak.
Why wrong: Weak signal would cause disconnections or missing data, not consistent garbled text.
- C
The tablet is using the wrong Bluetooth profile or driver for the printer.
The printer expects data in a specific format (e.g., ESC/POS); without the correct driver, the tablet sends raw text that the printer misinterprets.
- D
The printer's battery is low.
Why wrong: Low battery might cause erratic behavior, but garbled text specifically points to a communication or driver issue.
Question 408 of 1,020
Bluetooth Printer Garbled Text: Wrong Driver or Profile
This 220-1201 practice question tests your understanding of mobile device connection methods. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 technician is setting up a mobile point-of-sale (POS) system using a tablet and a Bluetooth receipt printer. The printer pairs but prints garbled text. The tablet is running a custom POS app. 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.
Quick Answer
The answer is that the tablet is using the wrong Bluetooth profile or driver for the printer. This is the most likely cause because Bluetooth receipt printers rely on specific profiles—such as Serial Port Profile (SPP) or Hardcopy Cable Replacement Profile (HCRP)—to interpret incoming data correctly. When a tablet pairs using a generic audio or file transfer profile instead, the printer receives data in an unsupported format, resulting in garbled text rather than clean receipts. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of Bluetooth profiles and driver compatibility in mobile point-of-sale setups. A common trap is assuming the printer is defective or that the POS app is buggy, but the real issue is almost always a mismatched profile or missing manufacturer-specific driver. To remember this, think: “Garbled print? Check the profile—SPP or HCRP, not a generic link.”
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The tablet is using the wrong Bluetooth profile or driver for the printer.
The most likely cause is that the tablet is using the wrong Bluetooth profile or driver for the printer. Bluetooth printers typically use the Serial Port Profile (SPP) or Hardcopy Cable Replacement Profile (HCRP) to receive print data. If the tablet's POS app or Bluetooth stack is sending data using a different profile (e.g., A2DP for audio or HID for input), the printer will receive garbled or uninterpretable data, even though the devices are paired.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 is out of paper.
Why it's wrong here
Out-of-paper would produce no print or an error, not garbled text.
- ✗
The Bluetooth signal is weak.
Why it's wrong here
Weak signal would cause disconnections or missing data, not consistent garbled text.
- ✓
The tablet is using the wrong Bluetooth profile or driver for the printer.
Why this is correct
The printer expects data in a specific format (e.g., ESC/POS); without the correct driver, the tablet sends raw text that the printer misinterprets.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The printer's battery is low.
Why it's wrong here
Low battery might cause erratic behavior, but garbled text specifically points to a communication or driver issue.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The 220-1201 exam often tests the distinction between pairing success and functional data transfer, trapping candidates who assume a successful Bluetooth connection guarantees correct operation, when in fact the correct profile or driver is required for the device to interpret the data properly.
Detailed technical explanation
How to think about this question
Bluetooth profiles define how data is formatted and transmitted between devices. The Serial Port Profile (SPP) emulates a serial cable and is commonly used for receipt printers, while the Hardcopy Cable Replacement Profile (HCRP) is designed specifically for printing. If the tablet's POS app sends raw text or ESC/P commands over a mismatched profile (e.g., HID or A2DP), the printer's firmware cannot decode the data, resulting in garbled output. This is a common issue when generic Bluetooth drivers are used instead of printer-specific ones.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this 220-1201 question test?
Mobile Device Connection Methods — This question tests Mobile Device Connection Methods — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The tablet is using the wrong Bluetooth profile or driver for the printer. — The most likely cause is that the tablet is using the wrong Bluetooth profile or driver for the printer. Bluetooth printers typically use the Serial Port Profile (SPP) or Hardcopy Cable Replacement Profile (HCRP) to receive print data. If the tablet's POS app or Bluetooth stack is sending data using a different profile (e.g., A2DP for audio or HID for input), the printer will receive garbled or uninterpretable data, even though the devices are paired.
What should I do if I get this 220-1201 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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