09-13-2015 08:52 AM
I have a HP 6700 Premium printer. I'm so disgusted that HP have appeared to have configured color to be used when printing in black only. I only wish that I had known this prior to purchasing this unit. The unit works well, but it's outrageous that color has to be used when printing in black only. I've read on this site that a representative from HP has admitted that color will be used when printing in black. It appears to me that this is a money grabbing situation from HP unless there's some reason that we don't know. I've had to purchase 3 color cartridges just to print in black. I have no use for any color pages.
I have read so many negative comments regarding the HP printers that use color cartridges when only printing in black so it's not just myself who is disgusted.
When these cartridges have emptied, I will trash this printer and purchase one from a competitor.
09-13-2015 09:45 AM
HP and other printer manufacturers have different printer technologies for different needs. For inkjet printers:
- Some have printheads built into the ink cartridges. These printers can typically print with one or more of the colors completely empty, or even with color or black (but not both) cartridges removed. The Deskjet 6980 series is an example, or for an all-in-one see the Deskjet 2540 or Officejet 8040a.
- Other printers have separate ink supplies and replaceable printheads. An example would be the Officejet 8610 printer. The printhead in these printers can be replaced if they are damaged by running the printhead with colors out. Some of these printers will allow printing with a color out, other will not. If the printer is run without ink in one or more colors the printer may be damaged, but the user may be able to recover without having to send the printer for service.
- Other printers have permanent printheads. To run these without some ink in all the colors would risk causing damage to the printhead due to clogs, air ingested in the printhead or burned out printhead firing resistors. The Officejet 6700 is an example of this type of printer. For printers with fixed printheads this could require service to get the printer to print properly again when the ink is finally replaced.
The document here describes how ink is used. While the document is written for HP Inkjet printers the same principles apply to inkjet printers from other manufacturers.
If you never print in color a laser printer would likely be a better choice. If you occasionally print color but mostly black an IPH printer like those in the first category above may be a good choice.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
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