HP LASERJET RESOURCES

(False) 66.11.01 Paper Path Connection Unit Not Installed in LJ 9000/9040/9050/ M9040/M9050

In HP LaserJet printers, 65 and 66 error codes are always related to optional devices – high-capacity feeders, output stackers, etc. In the LaserJet 9000 series, one of the more common error codes is 66.11.01. According to the service manual, this means that the paper path connection unit is not installed, and the recommended solution is to install it. In this article, we will look at what that unit is, what it does, and how you can get this error even when it is installed.

The paper path connection unit is mounted to the right side of the printer, just above the optional 2000-sheet feeder (tray 4) (Fig. A). It helps feed paper from tray 4 into the main body of the printer, and is only used when feeding from tray 4. If there is no tray 4, the printer may or may not have a paper path connection unit, and will work fine without it. However, if there is a tray 4 feeder installed, the printer can sense whether or not the paper path connection unit is there, and will display the 66.11.01 error if it cannot detect it.

The sensor that detects the presence or absence of the PPCU is located in the vertical registration assembly, which is part of the tray 4 feeder rather than the printer, and is located directly below the PPCU. The upper gear in the VRA is mounted on a spring-loaded pivot arm, and when the PPCU is installed, a white plastic bracket on the right side of it presses down on this arm (Fig. B). This actuates an optical sensor inside of the VRA. Fig. C demonstrates how the pivot arm moves when pressed.

In short, if you get this error, there are three possible causes:

  1. the PPCU is not installed
  2. the PPCU is not pushing down on the gear in the VRA (either due to incorrect installation, or due to broken parts);
  3. there are internal problems in the VRA (broken actuator arm or bad sensor).

There are no parts available for either the PPCU or the VRA, so unless it’s a case of improper installation, one of these assemblies will need to be replaced.

paper path art
Liberty stocks these parts: 608-268-7600
rg5-6225
RG5-6225 Vertical Registration Asm (VTU/VRA)
rg5-6227
RG5-6227 Paper Path Connection Unit Asm (PPCU)

(False) 66.11.01 Paper Path Connection Unit Not Installed in LJ 9000/9040/9050/ M9040/M9050

In HP LaserJet printers, 65 and 66 error codes are always related to optional devices – high-capacity feeders, output stackers, etc. In the LaserJet 9000 series, one of the more common error codes is 66.11.01. According to the service manual, this means that the paper path connection unit is not installed, and the recommended solution is to install it. In this article, we will look at what that unit is, what it does, and how you can get this error even when it is installed.

The paper path connection unit is mounted to the right side of the printer, just above the optional 2000-sheet feeder (tray 4) (Fig. A). It helps feed paper from tray 4 into the main body of the printer, and is only used when feeding from tray 4. If there is no tray 4, the printer may or may not have a paper path connection unit, and will work fine without it. However, if there is a tray 4 feeder installed, the printer can sense whether or not the paper path connection unit is there, and will display the 66.11.01 error if it cannot detect it.

The sensor that detects the presence or absence of the PPCU is located in the vertical registration assembly, which is part of the tray 4 feeder rather than the printer, and is located directly below the PPCU. The upper gear in the VRA is mounted on a spring-loaded pivot arm, and when the PPCU is installed, a white plastic bracket on the right side of it presses down on this arm (Fig. B). This actuates an optical sensor inside of the VRA. Fig. C demonstrates how the pivot arm moves when pressed.

In short, if you get this error, there are three possible causes:

  1. the PPCU is not installed
  2. the PPCU is not pushing down on the gear in the VRA (either due to incorrect installation, or due to broken parts);
  3. there are internal problems in the VRA (broken actuator arm or bad sensor).

There are no parts available for either the PPCU or the VRA, so unless it’s a case of improper installation, one of these assemblies will need to be replaced.

Liberty stocks these parts: 608-268-7600
rg5-6225
RG5-6225 Vertical Registration Asm (VTU/VRA)
rg5-6227
RG5-6227 Paper Path Connection Unit Asm (PPCU)
paper path art

(False) 66.11.01 Paper Path Connection Unit Not Installed in LJ 9000/9040/9050/ M9040/M9050

In HP LaserJet printers, 65 and 66 error codes are always related to optional devices – high-capacity feeders, output stackers, etc. In the LaserJet 9000 series, one of the more common error codes is 66.11.01. According to the service manual, this means that the paper path connection unit is not installed, and the recommended solution is to install it. In this article, we will look at what that unit is, what it does, and how you can get this error even when it is installed.

The paper path connection unit is mounted to the right side of the printer, just above the optional 2000-sheet feeder (tray 4) (Fig. A). It helps feed paper from tray 4 into the main body of the printer, and is only used when feeding from tray 4. If there is no tray 4, the printer may or may not have a paper path connection unit, and will work fine without it. However, if there is a tray 4 feeder installed, the printer can sense whether or not the paper path connection unit is there, and will display the 66.11.01 error if it cannot detect it.

The sensor that detects the presence or absence of the PPCU is located in the vertical registration assembly, which is part of the tray 4 feeder rather than the printer, and is located directly below the PPCU. The upper gear in the VRA is mounted on a spring-loaded pivot arm, and when the PPCU is installed, a white plastic bracket on the right side of it presses down on this arm (Fig. B). This actuates an optical sensor inside of the VRA. Fig. C demonstrates how the pivot arm moves when pressed.

In short, if you get this error, there are three possible causes:

  1. the PPCU is not installed
  2. the PPCU is not pushing down on the gear in the VRA (either due to incorrect installation, or due to broken parts);
  3. there are internal problems in the VRA (broken actuator arm or bad sensor).

There are no parts available for either the PPCU or the VRA, so unless it’s a case of improper installation, one of these assemblies will need to be replaced.

Liberty stocks these parts: 608-268-7600
rg5-6225
RG5-6225 Vertical Registration Asm (VTU/VRA)
rg5-6227
RG5-6227 Paper Path Connection Unit Asm (PPCU)
paper path art

HP Printer Parts

LPT is a printer parts vendor. Reach us at (608) 268-7600.

Learn more »

Quality Rebuilt Fusers

Every LPT remanufactured fuser is tested and inspected.

Learn more »

Printer Tech Support

Every LPT Tech Support provider has worked in printer service since the early 1990s.

Learn more »