HP 4525 - 59.F0 Error

[SD-86]

Hello,

Yes, the FW upgrade should be tried prior to the cleaning procedure.  The FW can be obtained from hp.com:

http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=3965807&swLangOid=8&swEnvOid=4062

Thanks,

Dave

[Hoolehua]

Thank you! That worked great!

[SD-86]

Hello,

<UPDATES IN RED TEXT BELOW>

The purpose of this post is to inform the community of one of the causes of and suggestions on how to resolve the 59.F0 error issue for the CP4025, CP4525 and CM4540.

<ITB Primary Transfer Roller Alienation- Sensor Flag Sticking in Up Position>

The ITB (Intermediate Transfer Belt, aka. Transfer Kit) has a feature that removes the contact of primary transfer rollers (one for each color under the belt surface) when the printer is not running to prevent sets, etc.  The printer knows the location of the transfer rollers by cycling the system and getting a response from the sensor: (K on Manual Sensor Test for 4025/4525 and SR9 on CM4540).  The ITB has a white plastic pusher (in image #3 below) that moves the sensor flag lever (POSITION DETECT ASSY) on the printer (can be seen on left side with ITB removed hanging down from sheet metal cutout- Image #3).  The flag passes through the photo interrupter of the sensor.  The sensor flag/lever is returned to the home postion (down-image #2) by gravity.  In some cases, the sensor flag/lever can become stuck in the up position (see image #1 and #3 below).  When the flag/lever sticks or returns slowly the result can be a 59.F0 error.

Below is a recommended suggestion to resolve this problem:

1. Upgrade the FW (http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=3965807&swLangOid=8&swEnvOid=4062)
2. If the error persisits, remove the ITB
3. Remove the fuser and on the left side (front of printer side) you can see the sensor flag holder (image #1 and #2 below)
4. If the sensor flag/lever is stuck in the up position then reach in and carefully release the part with your fingers.  The images below show the sensor flag/lever stuck in the up position.  Actuate the flag/lever a few times to make sure it is loosened up.
5. Re-install the ITB
6. Re-install the fuser
7. Reboot to see if the error clears

If the issue returns in a short period of time, then the flag/lever is likely dragging and returning slowly or getting stuck again.  If this occurs, then it is recommended to:

1. Use the attached document "59.F0_Error_Position Detect Assy Cleaning(CP4025_CP4525) to clean the POSITION DETECT ASSY to resolve the sticking flag.

NOTE: The ITB is typically not the cause of this issue.

I hope this helps.

Regards,

DaveK.

I work for HP

<Image #1>

Just below is an image looking in with the fuser removed at the sensor flag/lever in the holder with the photo interrupter located on the left side (front of printer).  The sensor flag/lever is stuck in the up position which causes the 59.F0 error:

<Image #2>

Just below is an image looking in with the fuser removed at the sensor flag/lever in the holder with the photo interrupter located on the left side (front of printer).  The sensor flag/lever is in the down position

<Image #3>

Just below is an image of the ITB Primary Transfer Roller Alienation Pusher (white plastic part) and Sensor Flag/Lever (black plastic part stuck in the up position in the sheet metal cutout) as seen looking at the left side (front of printer) from the right side of the printer with the right door open and ITB still installed. 

[dr-n]

Hello! I purchased a M452dn just a few months ago and was immediately confronted with the 59.F0 error. I figured out that it appeared when I used "special" commands during the print process (e.g. double-sided printing, only b/w printing etc), so I resolved to only printing without any additional adjustments on the print screen.

Most recently, the 59.F0 code comes on as soon as I turn on the printer. 

I have downloaded and updated the firmware numerous times. I'm running Mac OSX 10.11 but have the same problem with a computer running 10.8

I've read this whole thread, but I don't believe the physical errors mentioned should be my problem (it's brand new!) I have literally printed less than 50 pages total in the couple months I've had this (and again, the error was present from about day one).

Thanks! 

[mkowalson]

I would really appreciate the instructions for instructions fro cleaning this part

[SD-86]

Hello,

Please see the attached, review and attempt to perform.  If possible, please provide feedback on the effectiveness and/or any suggestions for improvement.

Thanks,

DaveK.

I work for HP

[SD-86]

Hello,

Please see the attached, review and attempt to perform.  If possible, please provide feedback on the effectiveness and/or any suggestions for improvement.

Thanks,

DaveK.

I work for HP

[rcscom]

I am getting this same error. I have rerplaced the ITB , Fuser, Position detect sensor Assy RM!-5604 , upgraded firmware. i am still getting the error. It comes up as soon as I power it on. Please help . I am about to loose this customer.

  Thanks

[SD-86]

Hello,

I am sorry that you have not been able to resolve the issue with the recommended steps.  I have a few questions:

Which product are you trying to repair?

How many pages are on this printer?

Do you know what occurred just prior to the 59.F0 error showing up as a hard failure?

Thanks,

DaveK.

I work for HP

[tron99]

Dave, me too, I'm getting the 59.F0 error. How can I do the FW update first, if this error occurs all the time? This way the error prevents any update.

By the way: In your manual 

https://h30434.www3.hp.com/psg/attachments/psg/PostPrint/604391/1/59.F0_Error_Position%20Detect%20As...

some parts are very small and therefore not easy to read (to be honest: not legible).

tron