Question about HP LaserJet 3600n Printer

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Hp laserjet 3600n stuck in calibrating mode - HP LaserJet 3600n Printer

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HP LJ3600 Constantly Calibrating SOLVED.
Hope this helps. I have nine HPLJ3600 printers. Four of them developed this fault. After much head scratching I decided to strip one down. I found the fault to be a thin layer of dust on the laser scanner mirror for the red and yellow images. There are four mirrors in the scanner two of which are upward facing and where dust settles. You will have to strip the scanner unit out to get at the scanner. and physically remove the dust. This proceedure also resolved the fault on the remaining three printers. The factor of dusty environment for these printers was the cause. The office printers are all fine. The forced air ducting seems to take the dust laden air across the scanner unit which is not sealed thereby causing the problem. After six months the problem has not returned as yet but all I will do next time is a strip and clean. (there are a couple dozen screws to come out and replace.)

Posted on Sep 14, 2010

  • ajobin0 Jan 05, 2018

    Additional information about these HPLJ3600 printers constantly calibrating.
    These printers definitely suffer from dirt on the scanner lens. However recently I had a spotless scanner but it was still constantly calibrating. After quite a few hours investigation I noticed the lever locks on the LHS under the High voltage power supply (you have to remove the HVPS to do a physical inspection with the power disconnected!) were not all operating correctly. The springs should all extend the same distance when the door is closed. However one was only partially extending. This caused a faded colour transfer to the belt and therefore it was unable to calibrate.
    I suspect that my users were not careful when replacing a cartridge and not fully inserting it causing damage when closing the door. Everything looks fine but the diagnostics page had a faded colour.
    I had to replace the LHS lever lock slide and the transfer belt. All the lever locks were fine (however these can break due to cartridge miss fitting).
    Hope this gives another avenue for fault finding.




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Could be a bad toner cartridge. What did you do prior to the constant calibrations?

Posted on May 11, 2010


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SOURCE: Can't stop the printer calibrating

If the calibration is taking a long time that can be related to the ITB belt. If the printer doesn't think that the calibration is correct it will keep trying until it sees a correct image(color)

Posted on Jul 28, 2009


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SOURCE: Can't stop the printer calibrating

No guarantee this will fix your problem, but the last time I experienced this problem it ended up being one of the toner cartridges. I replace her refurb. toners to OEM brand.

Posted on Jun 03, 2009

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1 Answer

Hp laserjet 3600 won't stop calibrating

Probably a DC Controller problem.
Have a tech check it out.

Nov 18, 2011 | HP LaserJet 3600n Printer

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Hp laserjet 3600 printer Won't stop calibrating, i try to change toner,reset dafault settings,still calibrating,i canot stop calibration,can u pl sent gud solution. Thanking U shiju

Its a particular problem with this printer, it needs a firmware update.

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Cannot stop my HP Color Laser jet 3600n printer from calibrating

Use service mode to skip calibration on startup. Then perform quick calibration when ready.

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I created a page on my blog where I outlined how I fixed this problem with my printer. I detailed the process and included some pictures

May 11, 2010 | HP LaserJet 3600n Printer

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My hp colourlaserjet printer (model : 3600)

if you go into the printer menu you will find that it can be set to calibrate at diffirent times. eg start up

Mar 01, 2010 | HP LaserJet 3600n Printer

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I also have a Color Laserjet 3600n printer. It keeps on calibrating without stopping when I switch it on. why ? I seen another posting with the same problem. I can not find a solution.

In the menu reset the memory and all active i/o channels. If still problem encounters then try replacing the cartridge. I think cartridge has some problem

Jun 23, 2009 | HP LaserJet 3600n Printer

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Can't stop the printer calibrating

No guarantee this will fix your problem, but the last time I experienced this problem it ended up being one of the toner cartridges. I replace her refurb. toners to OEM brand.

Jun 02, 2009 | HP LaserJet 4600dn Color Printer

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Have a Color Laserjet 3600n printer. It keeps on calibrating without stopping when I switch it on. why ? thank sin advance.

600 Hp Continuous Calibration 1 Votos

This is an answer to most of the problems of "continuous calibration" in the HP 3600.When the printer begins to constantly calibrate and falls in line so we have a problem, there are several causes for that problem and must be discarded from the simplest solution to the most complex.
Let's begin:

SOLUTION 1: The first thing to do is turn off the printer, and remove the cartridges, toner dirty or if the internal parts of the printer remove the excess, if there is dirt in the transfer belt clean.then close the front cover and turn on the printer without cartridges. then open the lid, place the magenta cartridge, and close the lid again, and so putting the four cartridges. If the problem persists try the next solution.

Solution 2: We must be alert to any strange noises in the printer, it is likely that one of the sticks is failing, if we are a strange noise came from, and replace the cartridge.

SOLUTION 3: There are times that it is software problem can be solved with a "COLD RESET" to do this we must turn the printer, and press the green button several times in the main menu until you see some options, navigate to the Down Arrow button until COLD RESET appears, press OK. the printer will restart and initialize. then restart and probably reached OK status.
SOLUTION 4: Sometimes by changes in temperature and environment where the printer is out of calibration sensor, to do a need to upgrade the firmware of the printer, usually ends the problem here. To download the firmware of the printer with the improvement due to "Countermeasure for multiple Successive Causing Environmental Sensor Calibrations." Is in the following link:
SOLUTION 5: If any of these options serves, it is likely that the mirrors of laser printer are dirty, this requires us to print a sheet to observe defects in print (moved, blurred, misplaced shadows), if any of these defects appear we disassemble the printer for cleaning the laser ... in this link are instructions

May 26, 2009 | HP LaserJet 3600n Printer

2 Answers

Hp Color LJ 3600 continue. Calibrating

Had a similar problem with a customer's printer. HP tech support had me change out the environmental sensor and the boards, this did not fix problem. In the end we had to get a replacement printer (thankfully the unit was under warranty)

Jan 10, 2009 | HP LaserJet 3600n Printer

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