Hp Z6100 loading paper error 79:04 - after replacing line sensor

[PaulGuitarMan]

Hi everyone !

I have a Z6100 that recently started not reading the maintenance cartridge anymore. So I took the line sensor from another Z6100 that worked (we disassembled and kept all the parts) and mounted it on this one.
The message saying ("Maintenance Cartridge Missing") has disappeared except now when loading the paper there is a 79:04 error.
Reading the manual I know that i need to calibrate the line sensor after replacement. The problem is that in order to do this calibration the plotter must load the paper. But it cannot load because during the loading it give the error 79:04

Oh i've also changed the Hard Disk but the same.

Anyone can help me ?

Thanks
P

 

[balstestrat]

I would consider it was not even related to the line sensor to begin with and you had a completely different issue from the start.

 

[PaulGuitarMan]

I would consider it was not even related to the line sensor to begin with and you had a completely different issue from the start.

Carriage PCA ?

 

[PaulGuitarMan]

I noticed that when loading the paper the carriage moves from right to left 2 times. The first time a red light comes on and the second time a blue light and then it goes into error 79:04

 

[PaulGuitarMan]

I would consider it was not even related to the line sensor to begin with and you had a completely different issue from the start.

I resolved

 

[balstestrat]

Well what was the issue???

 

[PaulGuitarMan]

Well what was the issue???

It was the line sensor.. I disassembled it and with isopropyl alcohol and a brush I cleaned it well (even though it didn't look dirty). now it reads the maintenance cartridge correctly and also loads the paper as well

 

[greysquirrel]

79:04 is a generic firmware error. In the service manual I believe it is about 15 pages of items to check. I would remove all media from printer, power off and remove all printheads and ink cartridges. Unplug for 5 minutes, open the hood, plug back in and power up. The printer will tell you to close, reinstall and load media and clear any stray errors.

 

[PaulGuitarMan]

79:04 is a generic firmware error. In the service manual I believe it is about 15 pages of items to check. I would remove all media from printer, power off and remove all printheads and ink cartridges. Unplug for 5 minutes, open the hood, plug back in and power up. The printer will tell you to close, reinstall and load media and clear any stray errors.

I've already resolved