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#hp750

  1. Need help cleaning printheads on HP 750 after using isopropyl

    Hello, I made a big mistake, I cleaned the printheads of my HP 750 using isopropyl. I have since cleaned the printheads using printhead flush and did several ink purges but my print quality is not great. Is there anything else I can do besides cleaning with printhead flush and doing more ink purges?
  2.

    Error E-HB-91, cannot print on multiple sheets on the HP 750

    I am getting the following "Error E-HB-91, Incomplete data received, but NO CRC errors". This happens when loading 2 sheets on the flatbed and trying to print a graphic to each sheet. I am able to print when there is only 1 sheet loaded. I have attached screenshots of both error messages. I have...
  3.

    Poor print quality for HP 750 after calibration

    We moved our HP 750 printer to a new warehouse. We did our best to level the printer when setting the printer up at it's new spot. I am getting pretty bad print quality. It looks like printheads 1, 2, 3, and 12 are the worst out of the bunch. What I have tried - Auto and Manual BiDi...
  4.

    Need Help Jet health and poor print quality after moving HP FB750 to new location

    We moved warehouses and unfortunately our HP FB750 was left unused and unplugged for ~1.5 months until we could set up the printer at it's new location. Have the printer up and running but getting horrible print quality. Currently I have done the following - Cleaned several parts of the printer...

  5. Black spots in the same place when printing on HP FB750

    Can this thread be deleted?
  6.

    Need Help HP Scitex FB750 UV Lamp Error, Cannot print

    Hello, when I try to print something, I get an error for the UV Lamps, but this error does not show up with an error message. On the home screen, it just says "Error" on the right side. The lamps are at about 650 hours and I am waiting for new bulbs to be mailed to me. Potentially related...

  7. Need Help HP FB750 not printing any black

    Hi, my HP FB750 printer has mostly not been used for the past year and now will not print black ink at all. What I did during the past year - Clean the print heads, about every ~4 weeks due to COVID. - Kept the printer on - Made sure there was ink for each color What I tried - Check jet health...
  8.

    Need Help Consistent dark dots when printing on fabric with an HP FB750

    Hello, I am trying to print on fabric with my HP FB750. I have tried several sample rolls of various fabrics that work with a UV printer. Most of the time the graphic looks good, but sometimes, part of the graphic will have a grid-like effect with dark round dots. I have attached an image where...
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