Question about HP DesignJet 750c plus InkJet Printer

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Receiving data but not printing! After sucessfully changing the belt on my plotter, the plotter dosn't print. It runs all demo plots and tests satisfactorially - however it does not plot files sent. When sending files to print (CAD/text/notepad etc) the 'Receiving' Led flashes and the 'Receiving' status is prompted. However immedialelty after this is goes back to Status = 'READY' and does nothing! I am connected via directly to the plotter via the Paralell port and verified that the plotter is set up for 'factopry settings', I have attempted printing from DOS prompt but to no avail. Appreciate any insights.

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SOURCE: 1050C plotter

Here is the drivers page if you need a new set:

Posted on Sep 18, 2008

  • 53 Answers

SOURCE: hp design jet 750c plus. while plotting auto cad

Your plotter driver needs to be set to either black or greyscale. The driver will overide the settings on the plotter unless you set up the plotter in manual. ie the pen thicknesses, colour etc are set in the control panel to manual. The driver takes priority always.

Posted on Feb 20, 2009

  • 24 Answers

SOURCE: HP DesignJet 1050c InkJet plotting issue


You doesn't say what application and OS versions you have, or if the printer is shared from a server or connected locally to a workstation. This is signifcant to solve the problem. Please clarify.

To make this work properly, all machines should have the HPGL driver and all drivers should have both the "Autorotate" "Inked Area" boxes ticked - both under General > Printing Preferences > Advanced AND under Advanced > Printing Defaults > Advanced.

Then you should create a paper size that is as wide as the media is wide, and longer than the longest/widest paper size you're ever going to print (6-10 feet long is OK!) - BOTH under Printing Preferences AND under Printing Defaults. This will ensure that every "odd" paper size (within media width limits) is printed without problems.

If the printer is installed on a server and shared, these settings should be done on the server - and the driver should be reinstalled on the workstations. If not, these chanvges should be done on each workstation that has access to the printer over the network.

When using older versions of AutoCAD you might have to reinstall the printer there as well for the changes to take effect.

Note: This solution has worked successfully over several years while working at HP support. The suggestion about the looong paper size may sound strange but it works!


Posted on Mar 08, 2009

  • 5603 Answers

SOURCE: max file size 450c can plot ?

You should have no trouble with the unit as additional buffering will be done in your PC if necessary. These units are a one pass rather than a whole page at a time.

Posted on Feb 18, 2010

  • 123 Answers


You could have a print head that is on its way out but more likely you have a drop detector that needs to be cleaned out or replaced. The drop detector is part of the service station. If you are happy with the print quality, try turning off PEN CHECKING from the menu. The printer will stop using the drop detector if you do that and should run unattended batches. You run the risk of running out of ink and the printer not being able to see that, though.

Posted on Apr 16, 2010

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Check lan card led blinking pattern., Replace lan card(Jetdirect card 620n) & check, mostly lan card issue might be there..

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If the question is whether or not the plotter will do a print without being connected to a PC the answer is yes. The plotter needs to go to READY, scroll to the printer icon on the display, scroll to DEMO PLOTS and press ENTER. Choose the page you want to print from there.

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SOLUTION: Follow the steps below to change the plotter's current setting.
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  2. Scroll using the up or down arrow key until Page format is shown, and press Enter.
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When was the last time the heads were aligned? If that's not it, it's the belt.

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Does the HP DesignJet 1050c plotter have a counter?

This data is printed out on the Service Configuration Print

  1. Load the plotter with media.
  2. When the device is 'Ready' scroll the menu to the Printer setup options and press Enter.
  3. Once in the 'Printer Setup options' menu, use the arrow keys to scroll to 'Utilities', and press Enter.
  4. In the Utilities menu, use the Arrow key to scroll to 'Test Prints' and press Enter.
  5. Use the arrow key to scroll to 'Service Config' and press Enter to print the Service Configuration Print.
You should find the data you are after under the heading of Maintenance on the printout

Good Luck!

Dec 07, 2009 | HP DesignJet 1050c InkJet Printer

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This indicates that either the black print cartridge is faulty, misplaced or missing. Try inserting a different black cartridge. Also firmly press the large green plunger fully down once, and then release it. The plunger should return to its original position. Then reset the printer and try printing again. If the problem persists try using a new black cartridge and primeit before use with the power on.

Sep 24, 2009 | HP DesignJet 330 InkJet Printer

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Why does the plotter use color even if we do not plot in color?

If you print in some CAD programm try the following....
Print Target:Line Drawing
Color Mode:Color CAD when the CTB is color and Monochrome when the CTB is monochrome
Resolution:Draft 600
For your situation use CTB monochrome and ColorMode Monochrome.
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Incomplete Plot of PDF file

This is a common problem on the 500 range, not so common on the 1050. A quick way around the problem (using the parallel port only) is to load the HP Designjet 750c drivers. Send the drawing to the 750 using memory in computer option and it WILL print.

Jan 12, 2009 | HP DesignJet 1050c plus InkJet Printer

1 Answer

1050C plotter

Here is the drivers page if you need a new set:

Aug 27, 2008 | HP DesignJet 1050c plus InkJet Printer

3 Answers

'Cartridges Missing' error. I have just replaced the belt on my 750c plus and reassembled. However when I restarted the plotter, the plotter does not recognise the print cartridges promoting 'Cartridges...

HP 750C Black cartridge quit in the middle of plotting chart. Replaced black cartridge & does not make contact with something. Cleaned contacts, turned off plotter, disconneted cables, reconnected & turned back on. Still says that black cartridge is missing. HELP!

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