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By loubylou2000 ·
If I change the setting to black and white or fast mode, the ink cartridge light comes on and it wont print. Any suggestion?

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by grandhighdruid In reply to HP 420 DESKJET PRINTER WO ...

What I would try, if you still have the printer, is to get a new black cartridge. HP printers have a nasty habit of telling you specifically that you have a bad cartridge, they give little hints, such as your problem. The problem that I have seen the most is that the printer will act like it is going to print, but never does. I have seen them tell you there is a bad connection between the cartridge and the printer, but in general the printer will do something that seems to defy logic. Hope this helps!!

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by hloke In reply to HP 420 DESKJET PRINTER WO ...

Need to confirm few things before a right suggestion is given.
1. Which cartridge is currently installed in the printer? Black or color cartridge?
a. Black - the light indicate that the cartridge is faulty or out of ink.
b. Color - please replaced it with black cartridge. If not, it will not print because you have selected the setting for B&W.
2. Is the carriage contact point clean?
3. If the cartridge is black and new, most probably the carriage has problem.
Hope this is helpful to you.

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