Question about Office Equipment & Supplies
I'm not an HP printer guru, but have been in the business machine service industry long enough to "guess" what my customer's problem is, and I am just looking for some support or afformation of my opinion.
They have an HP 3700N color printer that even though they have just replaced all the color modules with genuine HP supplies, still doesn't print as densly as they (or even I for that matter) feel it should.
My thought is that it's probably the transfer unit (drum/belt module). I see that they are supposed to good for a general yeild of 60-75K, and this customer has no recollection at all of ever replacing it before with 135K on the printer.
Also, there is definitive consistant fading from left to right on the prints. One other thing that may be related but I found "weird" is that the header of the internal test pattern which should be "HP blue" is actually almost a light purple but the remaining color parts of the test sheet (blues/reds/yellows) seem to fine as far as color goes, the slight density problem not withstanding.
Any supporting opinions would be helpful. Thanks in advance. Jim
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Posted on Jan 02, 2017
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Jul 30, 2011 | HP DeskJet F380 All-In-One Printer
Controlling Color Density
When colors look faded, adjust the toner color density to extend the life of the components.
Print and use the Color Reference Page 1 In the printer's front panel, scroll to Calibrate Colors,
press Menu and print the Color Reference Page. 2 Compare the Color Reference Page to the Color Density
Samples on page 39. Make a note of the value (-10 to +10) for each color that most closely matches the samples.
3 Adjust the density for each color: Enter the value noted in Step 2 in the Calibrate Colors menu, under Adjust Each Color.
? Decrease color density: Press . ? Increase color density: Press --->.
4 Reprint the Color Reference Page; check your adjustments
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