"print quality diagnostic report"

I have a HP Deskjet 3520 All-in-one printer and I just went to the "HP Deskjet 3520 series toolbox". Under the first tab (Device Services) is the button "Print Quality Diagnostics Page". I then clicked on that button and got the "Print Quality Diagnostic Report".
However i can not find anything that tells me what all the diagnostics mean.
attached is the document that I am talking about.
Questions:
1. The Magenta shows lines in the top of the lines on the top of the report but these go away at the bottom. Do I need to run a clean head cycle or seeing as that cartridge is low on ink just replace it?
2. In the bars of solid colors the light yellow (the bottom bar) has a white streak through it. Again I know it is low on ink. Is the issue there the ink level or does the head need cleaning?
3. Below those bars are numbered items about the printer but what does PHA mean? (Print Head Assembly?)
4. Number 22 in that list is PHA Drops. What does that mean?
Does anyone know where I can go to get answers to these questions?
Any and all help is appreciated.

Hello RayGo75 ,
Welcome to the HP Forums.
I see that you would like some explanation on the Print quality diagnostic report.
You stated that you attached a copy of the report that you would like reviewed but unfortunately, It is not listed on this thread.
Please reattach it and I will be happy to go over it and explain any details that you need covered.
Cheers,
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HP Photosmart 7510 - L:ooking at my Print Quality Diagnostic Reports - Why so many more "PHA Drops?"

My Photosmart 7510 C311a indicates it has printed about 7500 pages since I purchased it in about November 2011.
Tonight, after replacing the Cyan ink cartridge, I ran the cartridge alignment and then printed out the Print Quality Diagnostic Report. As I was checking it out, I noticed the mention in 11, 12, 13, and 22 of the words:
11. PHA Installed: 01/24/2012
12. PHA TTOE Completed 1
13. PHA Hex ID: K: 3ff11948_5c3f230b, C: 00f11d60_5b421f06
and on the line across the page for Item 22, with numbers under each color cartridge,
(Cartridge Color)       Photo                  Magenta             Cyan                    Yellow                     Black
22. PHA Drops          1493032000   4700387000   7245406000   51771850000   13001389000
While these numbers are very large, I was curious as to how quickly the grew in the very short time (like five minutes) between the time I ran the first diag report and then aligned the heads and ran another diag report -- at the most it was five minutes and I printed nothing in between. Then, after calculating the growth in each number, in about ten minutes, I ran another diag report and the numbers grew again. For each color cartridge, over the three tests, with no more than ten minutes between tests and with nothing but the three reports printed, here are the three sets of numbers  for "PHA Drops."
Photo        1493032000       1494847000         1496485000
Magenta    4700387000        4702380000        4704197000
Cyan           7245406000        7247860000          7249779000
Yellow        5177185000         5179178000        5180995000
Black          13001389000      13008428000      13013963000
Between the first and the second diag reports, the numbers for each cartridge increased by the following numbers:
Photo           1,815,000
Magenta      1,993,000
Cyan             2,540,000
Yellow          1,993,000
Black            7,039,000
I didn't bother to calculate the change in numbers between test 2 and test 3, but I suspect the numbers will be similar.
My question is this: What exactly is the definition of a "PHA Drop" and how does it fit into whatever the "PHA-related process" entails?
I have read two or three "PHA Drop" related queries and answers on the HP Forums and the answers -- bluntly -- sound like the answer-maker either has no real idea what is involved - or - thinks nobody on the forum could understand the real answer. Bad form..
I don't think there is a 'conspiracy to deny' here and I don't even think the PHA Drop is something I must know about to sleep tonight -- but, it is an obvious and open part of the information that HP has seen fit to include in every Print Quality Diagnostic Report and one of the posted answers states that the whole PHA 'thing' is only used for "diagnostics."
Okay, diagnostics run by whom and when and where and for what purpose? A really good, complete and accurate, fact-based answer might even help HP Users better understand the equipment we have spent good money to acquire and use.
Answer please.
Thanks
This question was solved.
View Solution.

PHA stands for Print Head Assembly. This is the assembly of the color and black printheads and the electrical interconnect.
PHA drops are the individual ink droplets printed. An individual drop is very small, on the order of 5 x 10 ^-12 liters for color, perhaps larger for black. I would not be surprised to see 7 million black drops on a page. At 600 dpi one square inch of paper would take 360,000 drops so 7 million drops would be about 20% coverage of the page if all the ink were used for printing There will also be some ink used for servicing to keep the printhead clear. The document here has information on how ink is used.
The diagnostic page is useful in cases where there is a problem in printing and you call HP support. They may have you print a diagnostic page and may ask for some of the particular lines to help diagnose the issue. There are a large number of items in the diagnostic page that can be of interest to the support folks (or the engineers during development) but for the most part they are not useful for the end user.
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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Black only prints on Print Quality Diagnostic report - Photosmart 6525

I have a Photosmart 6525 printer. On the 2nd page of a 2 page print, black rapidly faded out. Cartridge only weeks old and printer ink level check showed it as nearly full. I ran the Clean Printhead option which printed out a Print Quality Diagnostic when it was done. All of the informational text printed perfectly but nothing in the black grey-scale box or in the alignment. Still won't print or copy black. **bleep**?

The informational text on the print quality page is printed with color and black inks, so that if one or the other is not working the print will still be visible.
I would suggest going through the troubleshooting steps in the document here. Be sure to check the vents as described in that document.
Is your printer still in warranty? You can check with HP's warranty tool here.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

Keep hp 6700 in good shape: automatic print quality diagnostic page every week?

Hi all,
I've recently bought the HP Officejet 6700 Premium, and I'm concerned about keeping it in good condition, since I had to replace my previous canon printer because of a stuck printhead (the photo black one, I didn't used it for a long time).
Since I don't print much (but I'm using the ADF scanner a lot), and other family members prints sporadically, most of the time in black and white, I would like to setup an the printer to automatically print a diagnostic page every week to make sure everything is alright.
Using eprint, IFTTT and google calendar I could automatically send a file to print (I already set up the printer to wake up a few minutes before the calendar event) with black and color bars (someone suggest to print the google homepage since it has many colors but uses little ink).
Is there any chance I can directly print the print quality diagnostic page (so I can fully diagnose a problem if it occurs)?
Thanks for the attention
Cheers from Italy!
This question was solved.
View Solution.

Hey,
To clarify for you and answer your new questions on the printers self maintenance.
The maintenance cycle occurs randomly. It will occur after any power up, after print jobs(not every one) and any time it "think's" printhead health is poor. As mentioned above the printer to does have to be powered on for this to occur.
You can if you'd like still print off the odd test page just to check, once a month would be adaquet.
If you want to be saving power and are turning it off, then you would want it to be at least powering on and running the automated service that occurs weekly.
I hope this clarifies everything for you. Thanks for your posts.
I worked on behalf of HP.

PhotoSmart 6520 Print Quality Diagnostic no grayscale

Have a PhotoSmart 6520 printer that has worked well for 6 months. Used several black cartridges over the 6 months.
Ran out of black ink again and replaced the cartridge, new cartridge would not work at all. So put in another, which seemed to work at first, but when printing black in any darkness other than full black there is little to no ink dispensed. However, it will still print black text.
Now after changing printer cartridges twice, when printing the "Print Quality Diagnostic" page, all the text prints out fine, but the grayscale bars do not print at all.
Any help would be greatly appreciated.
This question was solved.
View Solution.

Are your color cartridges working? Light grayscale areas are typically printed using the color inks to give better print quality. (The black ink droplets are much larger than the color, grayscale using color gives better prints.) Depending on your operating system there may be a setting in the driver for "Print in Grayscale".
Check the color print quality as shown in the document here.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

Envy 7640 won't print anything except the print quality diagnostic

I'm trying to get a new Envy 7640 installed and working from my desktop running XP SP3. I have it wirelessly connected to my home network and all machines can see the printer. If I launch the HP Printer Assistant and print the quality diagnostic page, it works fine. If I try and print a test page from Windows (or print anything else), it spools for a couple seconds, then the print job disappears. My wireless laptop (MacBook Pro) can print just fine.
I've already tried the following:
Reboot the computer
Power cycle the printer
Uninstall/reinstall the print driver in Windows
Connect the printer directly to the desktop via a USB cable (same result as trying to use it networked)
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Disabled print spooling for the printer via the Advanced tab of the Printer Properties
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The difference is a Windows print job goes through the spooler, and the situation you are describing, sounds very much like the spooler is corruppted or not working.
You can also try manually clean the spooler, this page may be helpful on what is the spooler and how to clean the spooler: http://www.techienewsnetwork.com/fixing-or-cleaning-the-problematic-windows-print-spooler/
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Missing blank ink from Print Quality Diagnostic

I've only recently bought my HP Photosmart 5520 (about a month old). I've only had to change the cartridges for the first time today - so I replaced all four intially supplied cartridges with the correct HP564 cartridges in Magenta, Cyan, Yellow and Black. Upon trying to print something for the first time, I noticed my black and white lecture slides (I'm a university student) seemed streaky. However, as my printer had been functioning as normal before this cartridge change I ignored it. Upon trying to print other documents involving black text however, whole lines went missing. I've printed 3 Print Quaity Diagnostics, the black ink column is either streaky or missing completly. The same goes for the Ink Delivery System Information report - all the blank ink is streaky. Cleaning the heads (Clean level 2) and aligning the cartridges has done nothing to improve it. This is a source of major stress two weeks before my final exams - if anyone has any idea what is wrong please, help. The other colours are perfect.

The printer should be in warranty if you purchased it a month ago. I would suggest you contact HP. If you are in the US or Canada call 1-800-HPINVENt, elsewhere see the contact information here.
As a temporary workaround you could tell the driver you are using photo paper, this will force the printer to use color ink even to print the black. This is not a good long term solution but may at least allow you to print in a pinch.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

Print Quality HP Photosmart 5510

I have a HP Photosmart 5510 operating on Windows XP OS. The printing has started to print crooked on the page no matter if it's a print, copy or scan. I did a Print Quality Diagnostic Report and the Pen Alignment Status was a:Fail.
I then printed an alignment page but the scanner would not recognise it.
Any ideas what is causing this?

Hi there,
This article should cover the issue you are experiencing. Give the steps outlined a shot and let us know if it helps.
Best of Luck!
You can say thanks by clicking the Kudos Star in my post. If my post resolves your problem, please mark it as Accepted Solution so others can benefit too.

HP Photosmart 5520 print quality issues - Not printing black

Hi,
I bought a HP 5520 printer. I used it once and printed less than 10 photos and it was great the quality was superb.
I went to use it for the second time and the print quality was terrible. There is no problem with the printer responding to comannds it tries to print just it is awful quality.
I used the trouble shooting guide that HP have posted on line. I went through every step multiple times - I am using the correct paper, Genuine HP cartridges.
I got to the step where you run the Print Quality Diagnostic Report and there is NO Black present, Yellow is faint and the other colours have horizontal streaks.
I ran multiple print head cleans and no change.
I bought brand new HP print cartridges and still no change also ran multiple print head cleans and Print Quality Diagnostic Reports but still the same.
I tried to phone HP technical support but as I am at work just now and not with the printer they would not put me through to a technician
They told me to try and get an online Chat with a technician - well a few attempts and hours later still no response from them
Has anybody got any help on this issues please?
Chris

Hi,
Yes it is in Warranty. It is virtually brand new.
After I last posted I got through to the online chat support and was sent an email with options to 'troubleshoot' which I had already done with no success.
I was also given a link to try to update the printer firmware - which I will try when I get home from work.
I will see if that makes any difference but am sceptical as the printer worked fine the first time round but hasn't worked since and nothing has changed on it.
Chris.

HP2600n print quality

The results after executing the print quality page from the HP Toolbox show that the magenta is fading from light to dark to light from the left margin to the right margin ... this condition is not discussed in the print quality diagnostic ... I am assuming that I should replace the magenta cartridge? any help?

Hi there,
Could you provide the community with a little more information to help narrow troubleshooting? Can you give us a discription of what problems you have with print quality?
You can say thanks by clicking the Kudos Star in my post. If my post resolves your problem, please mark it as Accepted Solution so others can benefit too.

I have HP Deskjet 3510 connected wireless - problem is that it wants to print only black and white - is there a color button I am missing? The print quality report is fine in color etc.

I have a HP Deskjet 3510 and it wants to print only in black and white.
The Print Quality Report is fine and in color.
Is there a color button I am missing?

In the Print & Scan system preferences, does it indicate it is using a generic printer driver or a Gutenprint driver?
Also, if you click on Options & Supplies, you might want to check and see if has to be enabled. That kind of sounds odd though.
Another thing is it might not be showing. If the bottom of the print dialog has a button that says "Show Details," click it. Then, you can change settings in the popup menu.

HP OfficeJet 6500A Printer Quality Report - PHA Drops Inquiry

I just installed new HP Officejet 920XL cartridges (Magenta, Cyan, Yellow) in my Officejet 6500A. I ran a Printer Quality Report from the printer menu after I installed the new cartridges. I noticed from the report that the PHA Drops for the Magenta and the Cyan cartridges is substantially less than the PHA Drops for the Yellow cartridge. I'm not sure what PHA Drops are but I would assume the number would be similar for all three cartridges since I just replaced them. Why would the Yellow number be substantially higher than the other two? (Magenta - 4350627000, Cyan - 4507370000, Yellow - 5558569000)

Hello jnedved,
Welcome to the HP Support Forums! I see you ran a print quality report after changing your cartridges and you were interested in the PHA count. The PHA is the Printhead Assembly, and the count number is the printheads drop count since being installed. It does not reflect the drop count of the new cartridges. To get a better understanding of how ink is used, please take a look here: Ink Usage in Inkjet Printers.
There could be many factors as to why the yellow PHA drop count is higher than the cyan and magenta cartridges including: ink used to service the printer, pages that you print (some may use more of one color than the others), ink evaporation, etc..
Ink is used in a number of ways throughout the printing process, from preparing the printer to print to the actual printing of documents, photographs and other materials. HP designs its inkjet printer systems to deliver outstanding value in printing customer documents while using enough ink to maintain a reliable printing system that delivers outstanding print quality over the life of the printer.
The PHA Drop count listed on the print quality reports are for warranty purposes only, I hope this helps!
Thank you,
HevnLgh
I work on behalf of HP
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Print quality problem with Officejet Pro K5400

I purchased the above printer on August 8th of this year and I have really liked it until now. The print quality has gone to ----! I have done a chat with a technician, replaced any of the cartridges that might be low and it is worse than ever. Two thirds of the page will print okay and then the last third is either blank or very poor quality. I have tried changing the print quality from draft to best and it doesn't help. What recourse do I have? I can't find a real person to talk to.
Does anyone out there have an answer?

I purchased my Pro K5400 in May 2008. In the beginning it was loud (still is) but the printing was beautiful. Over the last three months the color printing is really bad. I've replaced the cartridges with only HP ink, I've aligned printheads, I've cleaned printheads, I've calibrated the linefeed. The diagnostic suggests I replace the printheads. Really? After less than a year? It also sporadically feeds several pages at once. And, I do a lot of printing of claim forms, it arbitrarily expands the left margin. Oh, it also jams often. Again, I believe these last two are due to a feeding problem. I sent an online question and got answers back in somewhat broken English that seem hooked on just replacing the ink and cleaning the printheads. Also, they gave me directions on how to clear a jam. This I know as I clear jams all the time in this printer. They are unable (perhaps due to language barrier) to answer the feeding/jamming problems. I really see this as just a very bad quality printer. I've owned other HPs and never had problems like this. What is the best way to contact someone in the United States about this printer?

Officejet Pro L7590 Print Quality Problems - Black/Yellow Printhead

Officejt Pro L7590 All-In-One
Running on Windows 7 64 bit, USB connected to computer
Approx 2.5 yrs old; has printed 30,000 pages.
Issue: Black/Yellow printhead replaced about 500-1000 pages ago; new unit only tested as "Fair" in diagnostics, even though it was fresh outta the box. Print Quality good.
About two weeks ago, printer refused to print, flashing ambler "!", etc., error message regarding black/yellow printhead.
Ordered replacement ($71 again -- ouch! Whole printer only cost $199 30 months ago).Again, new unit only "fair" in diagnostic (original Cyan/Magenta printhead still reads as "good").
New printhead required much cleaning and aligning, and now prints with large gaps on a regular basis down the page. Talked to tech guy @ Staples where i bought it; his only "helpful" suggestion was that most people just toss the printers the first time the printheads go bad.
Print heads are separately warranted.
My questions:
(1) What else is there that's screwing up my print quality,a nd is it fixable?
(2) Can i get my $ back on the two printheads that didn't fix the printer's problems?

I've included a link below to help you troubleshoot rpint quality issues...
http://h10025.www1.hp.com/ewfrf/wc/document?docname=bpu03037&tmp_task=solveCategory&lc=en&dlc=en&cc=...
This document provides some system settings that may help fix the issue.
Dave M.
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I am an HP employee.

Print quality gets worse, not better

Here's the situation:
A few months back I managed to get infected with malware. Ran Malware Bytes, which has this bad habit of destroying things you need as well as those you don't; after I got rid of the virus, I had all these problems printing to my Deskjet 1320. In addition the frequent jams, color print quality just went bad; replaced the color cartridge, it was just as bad. Diagnostic was telling me printer cartridge was full, but the 1320 just kept printing as though it was empty.
OK; maybe the printer's gone bad, tho it was only a few years old. So, this week, replaced it with a Deskjet 1520, which came with a brand-new color cartridge.
Installed the software, got it all hooked up - and the color print quality is still bad. Cleaned the cartridges - and the print quality grew worse.
I've about had enough of this, thank you very much. But I am wondering - is it possible that this is a software issue rather than a hardware issue? Because it CANNOT be a hardware issue at this point, not with brand-new cartridges (have a new black as well), and a brand-new printer.
Please advise.

my hp deskjet 1320 won't print black ink

"print quality diagnostic report"

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