HP DeskJet 640C

How to Identify and Fix Common Problems ?

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In 1988, HP introduced the first DeskJet. It included a built-in cut sheet feeder, 2 ppm, and 300 dpi. This was followed by the DeskJet Plus in 1989. It offered a landscape printing ability.
The most common type of deskjet printer uses thermal inkjet technology, which heats small drops of ink and sprays them onto the paper. Deskjet printers can only print on regular paper. Deskjet printers are slower than their inkjet counterparts, but they are cheaper to produce and usually require less maintenance.
If you look at the back door cover of the printer there is a label that has your model number serial number and also includes the date of manufactuer. Hope this helps. If you look at the back door cover of the printer there is a label that has your model number serial number and also includes the date of manufactuer.
From anywhere, to anywhere. It`s not just the HP DeskJet printer itself that`s versatile. With optional WiFi and smartphone connectivity, you can scan from wherever you are, right to your smartphone or tablet, and send to the printer.
The ink or toner cartridges are listed according to where the printer was manufactured. Some printers use more than one cartridge. For example, an HP Deskjet 1510 All-in-One Printer uses an HP 61 Black ink cartridge, as well as an HP 61 Tri-color ink cartridge.
There`s no added cost to sign up for HP+. You just need to own a supported HP printer and use genuine HP ink or toner.
If you`re mainly paperless, don`t do much photo or vibrant colour printing, then an inkjet printer is going to be the better choice. However, a Deskjet printer is a great choice if you have higher printing needs. If you have a home office that needs a quality printer, then they`re a great choice.
If you want to print a lot of text, a laser printer might be better. If you want clear, high-quality images, go with an inkjet. Overall, you should consider your space and money constraints, as well as other aspects like noise, whether you`ll want to use photo paper, and how much time it takes to print a job.
Inkjet printers sprays ink droplets while laser printers melt toner powder onto paper. With this difference in application between the two inkjet and laser printer types, it`s a common belief that smudging is more common with inkjet printers than laser.
Start your mobile application and tap the Settings icon. (Mobile Cable Label Tool users must also tap [Printer Settings] – [Printer].) Select the printer listed under [Wi-Fi Printer]. You can now print from your device wirelessly.
Restart devices

If your printer connects to a Wi-Fi network, disconnect your computer or mobile device from the network name (SSID), and then reconnect it to the same network name your printer is connected to. If the printer is available and has a ready status, the issue is resolved.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP DESKJET 1280 ERROR
ANSWER : Help please! Printer power and paper lights continue to flash,- even after : encoder strip cleaned, carriage rod lubed, carriage is not stuck, rollers cleaned, no paper jambed . I know this is a variation on an existing theme, but could anyone help solve the issue.Many thanksKen

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HP DeskJet 640C

HP Deskjet 5150
ANSWER : Ok I have the same problem, Kemal. HOW DO YOU DISASSEMBLE the printer carriage and the Ink Service Station from that??

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HP DeskJet 640C

HP Deskjet 640c wont print??
ANSWER : yes

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HP DeskJet 640C

HP Deskjet 1120C
ANSWER : I have just experienced a similar problem after cleaning out the ink build up without removing the outer case. The two lights are flashing and the ink cartridges end up on the far left after jumping back and fore a few times.

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HP DeskJet 640C

hp deskjet 3420- system error
ANSWER : Hi I am having problem in printing from java file , I followed all your steps but C:\\WINDOWS\\system32\\spool\\drivers\\w32x86\\3 after this I am getting no files in this folder ,please help me as I am struggling to get print from java since a week

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HP DeskJet 640C

HP DeskJet 1220C Prints only Pink & Black
ANSWER : hi everyone. i have an hp ink advantage 5525 all-in-one. changed all cartridges as they were empty and when i tried to print i got blank pages. i gave a print order a couple times to find out what was going on and found out that yellow and magenta inks worked but not cyan and black. removed cartridges, clean and all many times and nothing happened. then i tried this youtu.be/f57jOGj-G5s and the print quality of magenta and yellow improved significantly but still no black or cyan at all. i can’t do the running water thing because the print head is not detachable. any suggestions?

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HP DeskJet 640C

HP DeskJet 950C Leaking Ink
ANSWER : Thanks for the “loose, white rectangular piece” comment in my 990cse. I found this same white piece of rubber today jamming up the cleaning station carriage assembly and was wondering where it came from!

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HP DeskJet 640C

HP DeskJet 722C Paper Feed Problem
ANSWER : Detach the force string from the holding nothing back one and expel all paper from it.

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HP DeskJet 640C