Tech Help — Designjet 500 800 Technical Help

"I purchased your belt replacement kit for an HP DesignJet 800 and performed the job per your great video. The plotter got about 90+% complete printing the test plot on the gloss paper(image attached).  The plotter did not cut the paper.  Then it showed Error 86:01. I reviewed the job, your video and other videos trying to help with this error code.  Things I’ve done. Lubricated the drive rod Removed and cleaned the cutter head.  Its seems to move ok, but I don’t know how much resistance should be when sliding this part. The bushing moves smooth on the rod,...

"The space for Ink Supply Station on HP is too small for new ISS." The original ISS on the 500 & 800 had a bracket that held the assembly.  The bracket is not used with the newer style ISS and needs to be removed.  There is a T10 screw, usually colored red or blue in the area shown by the arrow.  Remove the screw, move the plastic toward the end of the machine and remove it.  Then install the new ISS where the bracket was installed.

"Hello from New Zealand. Since I have replaced the belt on my printer I have printed in black and white mostly but not much. I tried printing today but after a few sheets it start to hit and miss the ink. It was as if it was spraying ink in some place and not in the others and in the final sheet it virtually didn’t print anything. I did a print test page and it didn’t print in color and was mostly yellow and black. I didn’t get any error message or anything until I ran a align printhead test...

"I have an HP Designjet 500ps. I have recently changed the carriage belt using your video but I am getting "Error 87:13 - Possiblty Paper Jam com up" I have followed the instructions on the screen a number of times but can not seem to get past this point. Would you have any suggestions?" The plotter is not able to detect the lines on the encoder strip.  The encoder strip may be installed incorrectly, or there may be an obstruction of the encoder sensor on the carriage. The first thing to check is to see if there is any deflection...

"Last week I purchased a new belt and installed it. Everything went well had no problems. But now it prints a double line and shadows text. Some areas are printed correctly. If I change the settings to best, it prints a lot slower, but not the double line, as much but in some places. I was wondering if you had any suggestions. I changed all the inks, print heads, Black (twice). Thanks Ted" The problem is the carriage height is wrong.  There are 2 plastic pieces on the rear of the carriage that control carriage height.  One is a spring loaded finger...