08-09-2014 10:05 PM
I have this error 79:04 on my HP designjet 1100 printer. I have been through many blogs which seem to indicate this is mainly a firmware issue so I have already flashed the firmware with this TJ6-TAJ6_09_00_01-1_mvl40-x86-opt_B.exe. In my case the printer boots and completes all test fine. It comes to the ready to print status and also shows any pending jobs in the queue. I simply clear the queue of any jobs that are not printed and would then try to print a test print from the machines menu. It goes through the process of preparing the document and then the carriage moves from the service station to the left corner to start the print job and simply seems to bang, stop and gives the 79:04 error. This also happen if I try to send a print from a pc.
The full error is as follows:
Line number: 82
Paper usage:1104.043558 m sq.
I also saw this same error give this explaination:
Internal error: 0xbabeface
Key: Restart the printer. If the problem persists call HP support
Obviously I have restarted the printer many times but the problem persist. Any help with this would be appreciated.
08-10-2014 09:09 AM
08-11-2014 04:30 AM
08-11-2014 09:56 AM
We actually changed the drive belt and and a brand new carriage assembly. The machine booted normally to the ready for paper stage and accepts paper when loaded. Now trying to print a diagnostic image even without any computer connected to the machine results in the carriage assembly going thru the "getting ready to print" and then afterwards slide all the way to the left with a bang as it hits the left side of the machine.
08-12-2014 01:27 PM
Actually yes I have changed off some parts. Initially I changed off the carriage belt, and then when doing a test found the star wheel lifter motor and logic board with errors so I changed them off. The thing is they all pass their respected test and the Printer powers up and comes to the normal screen ready and waiting for documents to be sent for printing. The error shows up after it prepares the job and begin to print then the carriage moves to the left side of the printer and there is a small bang and the carriage stops there and then the error emerges. Is it possible that the belt tensioner may be too firm so the carriage moves with too much force abd hence bangs into the left end of the printer? I ask this because this is constant on every restart and this is the action right before the error appears.
08-12-2014 04:12 PM
Well I have just finished Tshooting the printer again and here are a couple of observations:
1. There was a G ink catridge empty warning which I ignored initially but I changed it for a new one today and then restarted the printer only to get a MK ink catridge expiry warning. However as usual everything else came on normally and with the network connection disconnected I again attempted to print a system configuration report only to get to the same fate. However the printer spewed out quite a bit of paper and this caused me to realize something that I was not taking note of.
2. The printer is actually starting to print the system configuration report since from the paper it spewed out I can see it has started printing the border and the actual full words of the heading of the report "System configuration". So it seems when the carriage assembly moves to the left to continue printing (maybe in the reverse direction) then it jams.
Could this be Print Mech PCA related?
08-13-2014 11:02 AM
You can remove the covers and check the following
1- Best, make sure the belt was centered on the carriage when it was replaced
2- Tensioner. Make sure it is installed correctly. There should not be any gap between the tensioner and the plate that holds the tensioner.
3- Encoder Strip. Make sure it is installed correctly
4- Cutter. Remove the cutter. if you dont have the problem with the cutter off, could be a cutter installation issue
5- Screws. Make sure you installed the screws back in the correct place. I seen screws installed where they are not supposed to causing new errors
6- Carriage Bushing. Make sure the bushing on top of the carriage is not broken, if it is, replace it
7- Left spitton. Make sure it is not touching the carriage as the carriage moves.
8- Any obstruction on the carriage path
9- Trailing cable. Make sure it is installed correctly
I hope this helps.
4 weeks ago
Thanks for the points stated relating to the issue experienced on the printer. I removed the left cover and checked most if not all the components that you mnentioned. Did not check the carriage bushing since I recently replaced it when I changed out the other parts on the printer. Also all the components mentioned are installed as should. So here is what I did. I left the left cover off and began the print procedure and observed that the carriage is actually banging on body of the printer i.e. the end where the rail and the encoder strip is attached to the printer body. So it seems it does not read or see the end of the carriage travel on this side. I went on to wipe/clean the encoder strip but the same thing happens. Also did a Carriage Assembly movement test and this resulted in OK.
Do you think this is a worn encoder strip causing this issue? This printer has not really been used much since it was installed. It has sat there for years and this is why I am not sure the encoder strip not used much could have gone bad.
4 weeks ago
Many times, data related 79:04 errors are resolved by means of hardware intervention. Since data is stored in physical components (RAM, EEROM and Hard Disk), replacing these components with new ones which are empty usually solves the problem. However, there are quicker and more effective solutions to these types of errors:
1.Clear all information that has been introduced by the user using the standard tools available in the printer:
1.Delete all jobs from the queue (from the Front Panel or the EWS)
2.Reset to factory defaults to clear the user’s configurations and calibrations
3.Delete any non standard paper preset in the printer (both the ones that have been created by the user and the ones that have been installed as OMES profiles through the EWS or the HP Printer Utility)
2.If step 1 did not resolve the issue, you can use Service Tools to clear additional information that could be causing the issue:
1.Start the printer in Diagnostics Boot Mode
2.Perform an EEROM reset
3.If step 2 did not resolve the issue, it is possible to completely clear the information on the Hard Disk and the different EEROMs, leaving them in an equivalent state to a new part:
1.Access the Service Utilities Menu
2.In the Secure Disk Wipe menu, set the Sanitize level to “Unsecure mode”
3.Execute the Disk Wipe. This takes 45-75 minutes and it will completely clear all partitions in the Hard Disk which contain user data, including the partition where the Operating System is installed. After the disk wipe has completed, a backup firmware version will automatically be installed from a backup partition to allow the unit to start up. This firmware version is very old.
4.The firmware in the printer should be upgraded to the latest official version as soon as the printer has restarted. After step “c”, any 79:04 which is caused by corrupt data in the printer will be solved
2 weeks ago
I have followed the steps that you have shown and I got to the resetting of the EEPROM. However at this point and after a reboot the printer is asking for the "setup Printhead" to do the setup procedure but I do not have any setup printheads. Do you or anyone in this forum know where I can obtain the setup printheads?
Or is there anyway to get pass this point since rebooting comes back to this same point?
I also did not see the Disk wipe menu in the service utilities. I do not intend to do this procedure just yet but was looking and did not see this menu.
2 weeks ago
2 weeks ago