[Error Code] HP 4101mfp error 13.32 (same as 4100 printer)

[patterson70]

Have this error on a customer's machine. It appears to be the Regisration and Feed Sensor RG5-5275-000 that needs to be replaced. The service manual shows the part and approximately where it goes but it is not specific enough. It does not show to remove and replace. Could anyone tell me the procedure? Or where to find more info? Thanks

[prntrfxr]

A fun repair. You'll feel like a tech after this one. Disassemble the printer in the following sequence:
1) remove the toner cartridge
2) remove the cassette
3) disconnect ADF cable
4) lift to remove ADF unit
5) remove one screw (bottom rear) securing Scan-unit right cover and remove
6) remove scan-unit left side cover (flat blade screwdriver to round part of cover - fan opening)
7) slide formatter cage to the rear to remove
8) remove 2 screws securing formatter, slide to the rear, disconnect high-speed copy cable and remove formatter cage
9) lock the scanner unit switch, disconnect the cable (right side) to the scan-unit, disconnect the small cable (located under the top cover where the formatter was), and slide the scan-unit to the rear to remove
10) Open the rear output door, remove 2 screws securing the top cover, open toner door and remove 4 screws, then lift the cover to remove
The rest should be the same as the 4100 or exactly similar.

11) Disconnect the purple cable on the right side, toward the bottom, located where the formatter was. Free that cable from the harness restraint so it can be separate from the bottom
12) Remove 2 small screws above that cable
13) Remove the rear cover and the fuser asm
14) Remove 1 screw on the left side of the machine below the fan
15) Remove 2 extra long screws that run through the tray 1 p/u asm. They are located in the front at the top of the machine.
16) Lift the top half of the machine straight up off the tray base
17) Rotate the top until the laser scanner is face down on the table (hopefully you have one to work on)
18) Remove the 7 screws securing the engine control board. (4 self tapping & 3 M3 type)
19) Disconnect the rod to the power switch (pay careful attention to how it is installed before removing
20) Lift up the engine board and either lean it against something so it's out of your way or you will need to disconnect all the cables and remove it.
21) If you look inside the cavity under that engine board you will see the sensor block.

Have fun!

[patterson70]

You are more than kind to provide all of the steps, thank you! Did you write them from memory? And have you had to do this often? I hate to replace it and find out it was not the problem!

[prntrfxr]

I've had to strip them for parts as I work for a part vendor. I've had to replace maybe 2 or 3 of the sensor blocks. If it is a 13.1 jamming problem, and you have tried a new cartridge, removed the tray 1 p/u asm completely to check for labels stuck behind it, you have replaced or checked the paper feed assembly rollers (behind tray 1 asm), then more than likely that is your problem. The only thing left if it is not it, is to replace the engine board.

I've had to replace feed guide assemblies (transport part before the fuser that the transfer roller clips into), but that is because field techs break the transfer roller end clips and then don't have time to fix it. Can't get just the clips for replacement and you end up replacing the entire paper feed guide. It's a lot more difficult to replace that because you have to take out the main drive.

As far as the instructions, the ADF part I had to look up, but the 4100 part I did from memory. The ADF part probably makes it worth doing. If it was just the 4100 alone, I would be trying to talk the end-user into a machine upgrade, if I were in your position. Then again, this machine is well liked by a lot of people.

[patterson70]

I am going to go back and recheck everything you mentioned. I really appreciate the advice! Will let you know soon.