HP LaserJet 4MP
how do I stop this test? When printer is switched on it just starts printing lines until it run out of paper. Can I switch that test off and where is switch?

Experienced technical support provide their insights in answering this question :
The engine test button is located under the panel at the back left side of the printer. It is recessed, so you might have to look for it. It’s a tiny black button about 1/4 inch in diameter. Never seen one get stuck like you describe, especially if you haven’t pushed it. You might get a pencil or something thin and poke it a couple of times.

How to Identify and Fix Common printer Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

The HP LaserJet P4015 Printer series features a 540 MHz processor and 128 MB standard memory, expandable to 640 MB. Now you can handle large, graphics-intensive files and get a quick return to the print job`s application, as well as increased uptime.
Ensure that the Inner Cover is closed. The nozzle check pattern can be printed from the printer itself. With the printer on, load a sheet of A4 or Letter-sized plain paper in the Auto Sheet Feeder. Hold down the RESUME/CANCEL button until the POWER lamp flashes green twice, and then release it immediately.
The design was replaced by the LaserJet Enterprise 600 M601, M602 and M603 in 2011.
P4014: Speed is 43 ppm A4 size and 45 ppm Letter-size.
Select your printer then press “Manage” Select “Printing Preferences” Click on the “Maintenance” tab on the far right. From there you should be able to see ink levels for your selected printer.
Test pages often include text, graphics, and images that, when printed, aim to maintain the health of your printer (and cartridges) while highlighting any issues that your printer may be having.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

15 engine test
ANSWER : The engine test button is located under the panel at the back left side of the printer. It is recessed, so you might have to look for it. It’s a tiny black button about 1/4 inch in diameter. Never seen one get stuck like you describe, especially if you haven’t pushed it. You might get a pencil or something thin and poke it a couple of times.

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HP LaserJet 4MP

Epson R200/R300 Engineers CD
ANSWER : I have r200 .Red lights flash continuously..Help please john birtill [email protected]

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HP LaserJet 4MP

test page
ANSWER : wow, you actually put your model in. Then you come up with “test page” and we’re supposed to know what the heck you are talking about.

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HP LaserJet 4MP

Epson TM-U220 no test printing, troubleshoot nada
ANSWER : My TM U220 also not printing, it appears that windows do not recognise it. The internal test sugested above does not work either. Any suggestion would be welcome.

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HP LaserJet 4MP

HP P1007 Printer Engine Scanner Error
ANSWER : My hp laserjet p1007 printer shows a massage that engine communication error

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HP LaserJet 4MP

Printing a test sheet of paper
ANSWER : Sudie77,

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HP LaserJet 4MP

PGBK shows no band on test print;
ANSWER : Take out all the inks. On the right side of the cartridge assy. you will see a plastic lever. Lift it up and reach inside and remove the printhead assy. Take it over to the sink and run hot water into the black screen on top to flush out the dried ink. Then flip it over and run hot water on the print heads. Do it for about a minute for each side and then repeat. Blot it dry with a paper towel. Reinstall and try it again.

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HP LaserJet 4MP

hp2200d squeals when attempting a test print
ANSWER : i have motor oil castrol 0.30 100%sintetik is it same with that oil

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HP LaserJet 4MP