HP Color LaserJet Laser/Scanner Assembly Removal

Hello,
I have a HP Color Laserjet 4600 in a hundred pieces. I'm experiencing the 51.2 error, specifically with the Magenta Laser/Scanner Assembly. I have diagnosed a few simple fixes found in these forums as well as others to try to find out what my problem is. I would really like to get the Magenta Laser/Scanner Assembly out of the printer and do the troubleshooting of it with the motor-as some have mentioned-or replacing it complete. The problem is I'm so close but I'm not sure how to get the Laser/Scanner Assembly out.
Thus far I have removed:
All panels-the manila plastic ones-, Top/left/right
The housing on the back where the NIC's go.
I'm currently staring at the 4 Laser/Scanner Assembly's-from the back, and I don't know how they are supposed to come out.
Do they all have to come out at the same time along with the frame around them?
Do I have to remove the top metal housing where the Fuser/Fans-where the paper would pop out at the top-?
On the right side of the case-if your staring at the printer from the front-there is a huge circuit board, do I have to take that off?
All in all I have successfully disassembled the printer and I'm staring at about 20parts and 1,000 screws, how much more will I have to take apart before I decide I'm in way over my head? I have fixed many a printer's in my day but this would be the first time I've gotten this involved.
Thanks!

Nevermind!
I figured it out, there are two metal columns about an inch in width that run top to bottom each with one screw holding it in place, undo the screw and pull the top out and a hing-like pin at the bottom will line up and come free.

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Laserjet 2600n not printing black on one side of page. already cleaned the laser/scanner assembly.

laserjet 2600n not printing black on one side of page. already cleaned the laser/scanner assembly. i've cleaned the assembly a few times beofre to restor the colors as the printer is in a semi-dusti environment. after cleaning the printer was fine, then about a week later, the black - and only the black - stopped printing on the right side of the page. the text is straight across left to right then starts to waver and then then stops altogether. i tried a different black toner cartidge and the problem remains.

> so this is strictly a hardware issue as no drivers are involved. Yup. > Still prints all black. Ok its not the controller. > Still prints all black. Ok its not the fuser. > its still prints all black. OK its not the laser itself > it still prints all black. Not that part either. > What else left is there? Formatter board hasnt been mentioned. Something is sending a command to the printer that is telling it to open up the doors and charge the entire page. Normally the laser is responsible for charging the media. As the media passes over the toner doors it atracts toner particles. Then as the paper continues it rolls past the fuser where heat melts the particles into permanent place. > The power supply board maybe? Perhaps but not likely. If you have a spare you could try it but power supply problems usually result with the machine unable to boot or print correctly, not printing too much as you have described here. > Is there another part you would reccomend I look at?
You could try the old Halfway test just to verify that the problem is coming from teh laser/toner part of the printer. http://www.printertechs.com/printer-troubleshooting/halfway-test Your paper may have somehow gotten a staic charge that opposes the charge of the toner, thus auto attracting all particles in range as it passes over the toner doors. Might want to grab a fresh ream of paper to test and rule somethign crazy like that out. Not very many options left after that.

Paper jam in color laserjet 2840. broken paper removed, error paperdraw stays in display. Windows 7

I had a paper jam in my HP Color LaserJet 2840 printer. I removed the broken paper. Then it hapenned again.
Removed the broken paper for the second time and now the error about the paper draw stays in the display.
Also when I restart the computer os turn off the printer. I also looked in the inside of the printer but I can't see anything.
This question was solved.
View Solution.

The troubleshooting page here may help.
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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Color Laserjet 4650 printing first page of any doc over and over

Hey folks,
If I or some of my colleagues send a doc to the network printer, it prints the first page over and over until you go and force it to stop. This is taking place on at least one PC and one Mac; others have printed from both platforms without problem. It seems to happen in any kind of software - MS Office, web pages, etc.
Rebooting the printer has no effect.
Thanks in advance for any help!

Here is what you need to do. On the printer go to the diagnostics menu and then choose the pq troubleshooting and select. The printer will print a number of pages including 4 sheets of solid fill color i for each color. This is where you will see the missing color and most times it is only 1 toner that is having an issue. This does not mean that particular toner is bad as it could be a bad slot. To find out you need to go to the same diagnostics menu and then scroll down to disable cartridge check and select. When the printer says ready, diagnostics mode, open the toner door and remove all the toners. Now I will give you some examples of what to do next. Let say the Cyan toner only prints on half the page. You will want to take the black toner cartridge and place it in the cyan slot. Close the door and run the same test pages again. Most will be blank, but you should get 1 page of solid fill black. If the page is ok unlike the cyan page, then the issue is the cyan toner. If the page has the same problem as the cyan page, then the slot has an issue and most likely the laser/scanner lens are dusted over. Sometimes you can lift the shutter in the back of the toner cavity for that color and use a qtip to clean the lens. Most times the laser/scanner assembly need to be removed from the printer which is not easy and then the optics cleaned.

Hp color laserjet pro mfp m177fw (Cant open SCANNER on computer)

Hi there,
I am using a desktop 27 inch Mac with OS X Yosemite 10.10.1
When I go to system preferences and click on printers/scanners I can see my mfp m177fw laserjet printer (wirelessly connected fine). But unlike on my Macbook Pro laptop on my desktop there is no SCANNER option to open up? Thus I am unable to scan from the printer to this desktop. I have the latest HP driver installed on the desktop computer for my m177fw printer.
Any ideas? Any help would be greatly appreciated
thanks!
Simon

Hello @Simonjayh,
Welcome to the HP Support Forums!
I would like to assist you today with resolving the scan issue that you're experiencing since installing your HP Color LaserJet Pro MFP M177fw on your Mac OS X 10.10 computer. Can I please have you run through the steps below to get this product functioning properly again for you.
Step 1: Uninstall Drivers:
First, can I please have you click here and run through the steps provided to Reset the Print System on your Mac OS X 10.10 computer. Please refer to the section under 'Resetting the printing system in OS X Lion' as the steps are the same for your Mac OS X 10.10 Operating System. Resetting the Print System will remove every printer from your Print & Scan window on your computer. However, this does not uninstall the devices. Therefore, should you use other printers on your Mac OS X 10.10 computer simply ensure that they are plugged in with a USB Cable or Network connected and add (+) them back in. Do not add your HP Laserjet printer back in at this time.
Next, please click here to access the steps on how to properly uninstall the Software and Driver Package for your printer. Once the website opens select the dropdown for 'Mac OS X v10.6, OS X v10.7, OS X v10.8, and OS X v10.9' as the steps are the same for your Mac OS X 10.10 Operating System. Once the uninstall has completed successfully, please proceed to the next step.
Step 2: Verify and Repair your Disk Permissions on the Mac:
Open Macintosh HD and go to Applications
Go to the Utilities Folder
Open the Disk Utility
Select the Hard Drive volume you are using (usually on the left)
Select Verify Disk Permissions
Once that process is done, select Repair Disk Permissions
Step 3: Check for Apple Updates:
Go to Apple
Select System Preferences
Select Software Update
Click Update Now
Install your available updates
Restart your computer
Step 4: Reinstall your Software and Drivers:
Lastly, please click here to download the appropriate Mac OS X 10.10 Full Feature Software and Driver package for you printer. Once the website opens select the Download button on the top left. Once the Download is complete please follow the onscreen steps to reinstall you printer.
Once your printer has been successfully reinstalled, please test the HP Scan functions again. For additional scan information, you may want to refer to : Scanning with the Full Feature HP Software in OS X v10.10 Yosemite
Please respond to this post with the result of your troubleshooting. I look forward to hearing from you!
X-23
I work on behalf of HP
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Mac cannot detect scanner option on HP Color LaserJet Pro MFP M177fw after trying every method

Hello,
I have recently purchased the new printer HP Color LaserJet Pro MFP M177fw and I am having a lot of trouble trying to scan. I have spend hours trying to fix this.
I have tried all the methods on this website, (trying through preview, printers and scanners (no scanner option showing) image capture, etc. I have also installed all the necessary drivers with no luck (CD and from HP website)
Then I tried all the other methods that were listed, I have tried restarting, deleting drivers and proceeding through image capture, preview and sanner and printers, it just does not have scan option anywhere.
The printer is working fine though, and I am connected to the printer through wifi
I do not know what else to try, please help.
Kinds regards
Zhanna

Hi @student ,
I see by your post that you aren't able to scan through the wireless network. I would really like to be able to help you resolve this issue.
When you added the printer, did you add it as a Bonjour printer or did you have to type in the IP address and add it through IP Protocal? The reason I am asking is because when adding the printer through IP Protocal you can only print, your not able to scan with the printer added this way.
Check the driver name that is installed for the printer. It should list just the printer's name. (HP Color LaserJet Pro MFP M177fw )
Click the Apple menu and then click System Preferences. Click Printers & Scanners, highlight the printer name on the left side and on the right side of the screen should show the name.
If the printer name isn't listed properly, delete it and add the printer name back in from the list. Click the - sign to delete the driver and then click the + sign to add the driver. (you might have to click the drop down to select the printer's name to add it in)
If you are still having issues, uninstall the printer software.
Uninstalling the Printer Software.
Repair the Disk Permissions on the Mac:
Close all applications.
On the Apple menu bar, click Go, click Applications and then click Utilities.
Double-click Disk Utility.
Highlight your hard drive/partition on the left.
Click Verify and then Repair Disk Permissions.
Restart the computer.
Empty the trash.
Reset the Printing System:
Note: This will remove all printers in the print and Fax/Scan, any printer removed can be re-added later by clicking the plus (+) symbol.
Click the Apple icon and then click System Preferences.
Click Printers & Scanners.
Right-click (or Ctrl +click) in the left white side panel, then click Reset printing system.
Click OK to confirm the reset.
Type the correct Name and Password.
Click OK to reset the printing system.
Then install the printer software again. HP Color LaserJet Pro MFP M176/M177 Series Software.
If the issue persists, connect the printer directly to the Mac and try and scan through a USB connection. Just to rule out a network issue.
Please let me know the outcome.
Have a fantastic day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Gemini02
I work on behalf of HP

HP Color LaserJet 2840 driver missing scanner option

http://h30434.www3.hp.com/t5/Printer-All-in-One-Install-Setup/How-to-load-the-scanner-driver-for-HP-...
Dear Experts
I have installed a HP Color LaserJet 2840 on windows 7 OS (I am not sure if it supported OS or not ) that was given to me by a friend.
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What I am doing right now I connected the printer using a USB cable and I am using “Windows Fax and Scan ” option to do scan.
Printing no problem all PCs are able to print
Any suggestion how can I overcome this issue ?
Thanks

Hello zillah2004,
I understand your concerns. Unfortunately, for this type of printer, I need to direct you to our Enterprise Business Community Forums. This will be the right section to troubleshoot this issue. Good luck.
I worked on behalf of HP.

What Laser Photo paper 4X6 can I use in a color Laserjet Pro M276

What Laser Photo paper 4X6 can I use in a color Laserjet Pro M276?
This question was solved.
View Solution.

Hi,
You have to go to the next page, first page only lists 12 items. Anyway, HP supplies larger size papers for Laser printers. I don't know the reason behind:
http://store.hp.com/webapp/wcs/stores/servlet/CategoryListingView?catalogId=10051&categoryId=88331&l...
I don't print photos at home, cost too much but for testing, I normally print 4 photos on one sheet (A4) and cut in 4.
Regards.
BH
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Color LaserJet Pro MFP M176n installed but not printing

Hello Everyone,
I have problem with my printer Color LaserJet Pro MFP M176n.
at thebegining i try to install it buteverytime i run the installer it give me HP Installer error, so i installed the Microsoft Net Framework 3.5 and run the install and it was working perfict, i install the driver on USB cable and after it show me successfull and print test page and finish, so i click print test page and in printer and fax the printer M176n Show 1 printing job and then 0 but no print came out i try again same, i remove the cable and plug it again the printer is responding perfictly but still not printing i check the scanner and its working fine but only the printing is not, so i try to install it through network and it was sccessfully installed with IP but when i print, still the same 1 printing Job but nothing came out of the printer when it came 0 printing job.
Please help......
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Thanks
I did try to use Scan Doctor, the printer didnt print at the first check but when it ask forenternal print test page it printed then it ask me toif it print of not and i click yes it print in enternal print so it ask me to remove and reinstall so i did 2 to 3 times and still same will not print but when run Scan doctor it will print on enternal print .....
Wael Hilal

Hello @ Averus89,
Welcome to the HP forum. 
I understand you have done quite a lot to resolve your M176n and its connection to the ePrint service. 
I would like to help you with this issue. 
If the printer is not printing the web services info sheet, or allowing you to add it to HP Connected, I
would set a manual DNS. 
I wont go into great detail about setting this up. From your post, I feel you know your way around the printer and your network. If I am mistaken, let me know. I will go into detail. 
The DNS to try is:
Primary: 209.244.0.3
Secondary: 209.244.0.4
Set the DNS then try printing the web services info page again.
Let me know if this helps.
Aardvark1
I work on behalf of HP
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HP Color LaserJet 2605dn - prints black pages over print

thanks, I pulled out all the cartridges, and they all look the same on the left side, all look to be the same, so don't see anything out of place. Wiped down the inside while everything off and out, and reinstalled cartridges. First test print from button on back came out perfect (was so excited) so I tried a second test print, and the black came back on about half the page, then a third test print and the entire page was almost covered (no longer excited) Hopeully original and these photos get approved to help show what I'm seeing. Here is picture of contacts: Here is picture of the three pages printed:

Looks like a high voltage power supply issue with the black only. Since the laser/scanner on this model uses 1 motor for 2 colors that would eliminate the laser/scanner. Repair by a repair shop may cost more than the printer. Only suggestion I can give to is do a google search for the service manual and download it. Look for instructions for the removal of the high voltage ps and remove it and then put it back in. There is always the possibility one of the connectors has become loose and is causing the issue. Good Luck.

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Hi,
I have upgraded maverick to yosemite. The last Update for printer software was installed (version 3.0 at Oct. 1 2014). But both printers doesn not work any more.
The color laser jet 3600n stops after 10% of the print with PCL XL error, Subsystem kernel, Error: Missing data, Operator: Vendor Unique, Position 14.
With the OfficeJet 8600 Pro it is quite similar. The printer starts loadin the page. After some minutes the printer push out the empty page. In both cases the Mac lost connection to the printer for some time. After few minutes the connection is established.
System is OSX Yosemite 10.10
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connected over cable / bonjour
serial number [Personal Information Removed]
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connected wireless/Bonjour
FW-version CLP1CN1322CR
serial number [Personal Information Removed]
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View Solution.

Hello @esuny , and welcome to the HP Forums.
I am sorry, but to get your issue more exposure I would suggest posting it in the commercial forums since this is a commercial product. You can do this at HP Commercial LaserJet Forums.
I hope this helps!
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Jamieson
I work on behalf of HP
"Remember, I'm pulling for you, we're all in this together!" - Red Green.

Can't install HP Color LaserJet CM1312nfi MFP at notebook HP Pavilion

I bought new notebook HP Pavilion 13-a051sr with Windows 8.1 (x64) onboard.
I'm trying to install HP Scan.
While installing all-in-one HP Color LaserJet CM1312nfi MFP using "CM1312series-win7-full-solution-AM-EMEA1-v5.1.exe" can not get after the dialog window "Locating the printer". Printer could not be found even if I write down printer' IP-address. The latest printer firmware is already installed. Firewall is disabled, antivirus is closed.
I installed printer without any problems using it IP-address. What can I do in order to install scanner module?

HP Print Drivers

Software for HP Color LaserJet CM1312nfi MFP is not currently available from the Software Update server.

I recently upgraded to Mountain Lion, and found that I could no longer print to my HP CM1312nfi.
This is usually a problem with HP at every upgrade, but this time, they appear to have offloaded the driver download process to Apple.
My printer is connected wirelessly through a time capsule by IP address—the physical, not the virtual, e.g: 169.254.xx.xx instead of 10.0.1.x.
When I try to download the driver by bonjour or IP, I get the following error message:
Can't install the software for the Hewlett-Packard HP Color LaserJet CM1312nfi MFP because it is not currently available from the Software Update server.
Is this truly a Software Update server error, and if so, any clue when it will be resolved?
I am able to print with the generic driver as of now, but fax and scan capabilites are gone. The add fax dialog lists no devices.
Scanning is not supported on my printer model with the Hewlett Packard Print 2.12 driver. Will support be forthcoming, or did Mountain Lion brick my scanner?
Thanks for your time and attention.

Of course, once I posted this, I tried again and downloaded the driver without issue.
My second question still stands, however:
Scanning is not supported on my printer model with the Hewlett Packard Print 2.12 driver. Will support be forthcoming, or did Mountain Lion brick my scanner?

HP Color LaserJet Pro MFP M177fw - PostScript support?

Hi,
I'm looking to purchase a new printer/scanner/copier(/fax is a nice to have, but not mandatory), and I'm deciding between the following models:
HP LaserJet Pro 100 color MFP M175nw
HP Color LaserJet Pro MFP M177fw
PostScript support is important for me, and I know that the 175 has this. However, I'm not sure about the 177, even after digging through several web pages and documents. Here's what I found:
- The main specs page for the 177 says that it supports "PCLm". I'm not familiar with this PCL variant, so I don't know how it compares to PCL5 or PCL6, etc. I was unable to find more information on "PCLm".
- The "Software Included" section of Page 2 of the PDF datasheet for the 177 mentions "HP PostScript" driver. This is the only place where I've seen any potential indication that the 177 supports PostScript. This section also mentions a "PCLmS" driver. I could not find any further information on "PCLmS".
- The for User Guide the 177 only mentions PostScript in a section that refers to ePrint. However, it does not imply that the 177 itself supports PostScript.
- The Product Specifications page (in the Support section of the HP site) for the 177 has a "Printing Specifications" section which lists only "PCL3 GUI" next to "Device languages".
I'm guessing that the 177 does not support PostScript, but does anyone have any more definitive information? Also, is there a description of PCLm / PCLmS somewhere?
Thanks!
This question was solved.
View Solution.

Hi Clent
Here is some information on both printers.
Here is a url for the printer specifications for the Color LaserJet Pro MFP M177fw
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03901180&tmp_task=prodinfoCategory&cc=us&dlc=en...
Data Sheet also.
http://www.shopping.hp.com/shopping/pdf/cz165a.pdf
Fonts and typefaces Depend on Operating System fonts and typefaces.
Print languages
PCLm
Laserjet Pro 100 color MFP M175nw
http://www.shopping.hp.com/shopping/pdf/ce866a.pdf
Print languages
HP PCL 6, HP PCL 5c, HP postscript level 3 emulation, PDF (v1.7), HP PCL 6, HP PCL 5c, HP postscript level 3 emulation, PDF (v1.7), AirPrint™ compatible
Hope this helps.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Gemini02
I work on behalf of HP

Solved! Windows 7 driver solution for HP Color LaserJet 3550

I had success getting the HP Color LaserJet 3550n (the 3550 family ) printer to install in Win7. That printer was the only thing that did not fire up with Win7. In the Devices and Printers window, I tried troubleshooting, but it was a problem with the DOT4USB drivers. Similarly to others, I was successful by using the following course of action:
1) Went to HP and downloaded the Vista 32-bit drivers for the 3550, unpacking them at C:\HP CLJ3550\ as suggested by the driver file.
2) In Devices & Printers, did <Right-Click> <HP 3550> <Properties> <Hardware tab>
3) I selected the first "Device Function" <DOT4USB> then did <Properties> <Change Settings> <Driver tab> <Uninstall>.
4) I then selected the second and third Function (which were <HP Color LaserJet 3550> and <IEEE 1284.4 compatible printer> and did the the <Properties> ... <Uninstall> for each.
5) I disconnected the USB to the printer, went back to Devices & Printers, and selected <Add a Printer>.
6) I selected <Add a local printer> <Use existing port DOT4_001> <Next> <Have Disk> <C:\HP CLJ3550> <OK> and installed the printer.
7) It would not work unless I "let" Windows make it the Default Printer
8) After it was finished, I did <Right-Click> on my preferred printer and selected <Set as default printer>, and everything worked.
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View Solution.

I want to thank you for the solution. You saved me the expense of having to purchase a new computer. I used the 64 bit 2003 version and it works just fine. The people at HP were not very cooperative at all. When I called, the lady who answered the phone asked if I was from the United States or Canada. When I stated the United States she had a big sigh
of disgust. When I explained my problem that I was having with the 3550 Laser jet and HP not having the Window 7 drivers, and that the printer was non functional, she stated that I should have researched whether or not my printer was compatible with a new operating system before purchasing it. I asked her if HP would have a compatible driver soon as I did not want to have to purchase a new printer. Then she stated that my printer was old (I bought it in 2005) and what did I expect,t as if the printer not working was my fault. I told them about your solution to this problem and if they could help me through the step but she did not cooperate .Even if I had to pay the $39 fee to the tech dept for their assistance it was worth it saving time. HP service in my opinion is very poor and will lean toward a competitors product if I am faced with a choice. Thank you again.

HP Color LaserJet Laser/Scanner Assembly Removal

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