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HP Designjet 800 ps oil question Hello, Thank you for your excellent video. We completed installation of the replacement belt without issue or complication thanks to your thoroughness and great explanation of the process. We were unsure where the non-evaporating oil comes into play in the process. I saw no mention of this in the video, written instructions, or cd material. Please advise. Thanks again! Anders Kirleis Engineering Designs For Vision, Inc.  The oil is to be applied using the cotton pads provided.  It needs to be put on the round rod that the carriage travels on.  A cleaning and...

I just replaced the belt in my 500.  The belt is jumping teeth on the gear of the plotter causing streaks in the solid colors. Belt is installed correctly, but the spacing of the teeth seems to be off.  I want to find out what can be done about the belt. If the belt is slipping on the motor pulley, it is because the belt tensioner is clipped down in the service position or the motor pulley still has debris in the teeth from the old belt.  The fix is to remove the right end cover and use a small...

The blue spring operates the carriage lock over the service station.  It is part of the Designjet 500 service station bracket and should be mounted as shown in the picture below:

I ordered and replaced the belt in my HP designjet 800 like it is shown in your tutorial. designjet-500-800-carriage-belt-replacement But now I have the message on the screen: "Open and check printhead cover is properly closed" I cannot solve this problem.  Can you please tell me what to do?Philippe The plotter thinks the carriage print head latch is hitting the frame.  It probably isn’t.  Something is causing extra friction or an obstruction in the Y-axis.  With the power off, move the carriage by hand all the way left and right to try to determine if it is hitting something or has...

The error code 17:11 is not an error code listed in the service manual.  It seems to occur at the beginning of initialization and the plotter gets stuck there.  It is useful to use the green light on the power button to troubleshoot the problem rather than to try to interpret the code.If the green light is blinking twice every few seconds, the plotter cannot find the data cable that connects the interconnect board (the board the control panel plugs into) and the electronics module.  Try reseating the cable at the interconnect board and at the electronics module.  If the...