Question about HP LaserJet 4250 Printer

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Error code

This error came up after someone broke the top cover door the plunger to the cover switch. do you have a part # fot that internal panel other than RM-1080-000?

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Nope, pretty sure you'll have to buy the whole cover...but it's only about $25

Posted on Mar 11, 2009

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System error in designjet 500 plotter error code 20:10

The error code 20:10 does not appear to be a valid error code. The plotter may be misinterpreting the code. Try disconnecting the service station (power off). It is the bundle of green wires plugged into the small interconnect board behind the display. You will need to remove the right end cover to see it. That should generate a 21:10 error when you power up. You will need to hold down the top cover interlock. If you get the 21:10, reconnect the service station cables and disconnect the cables going to the ink supply station. When you power up you should get a 22:10 error. If either of these causes the 20:10 error, that module has a problem.

Oct 03, 2013 | Printers & Copiers

2 Answers


Make sure that all off the covers and doors are properly closed.
If you are sure that everything is closed you probably have a faulty switch or a broken gate in the bottom tray.
See you!

Jun 23, 2011 | Ricoh Aficio 2035 Copier

2 Answers

The resume button keeps flashing even after I shut off printer, and won't allow me to print. I turned off and on the printer several times. I don't get an error message. All ink is OK.

Make sure the ink cartridge cover is properly closed.

My sister's printer had a similar problem and on initial inspection the cover seemed to be closed, however a small bit of the plastic clip that holds the cover closed had snapped off and therefore wasn't holding the cover properly closed and the sensing micro switch that tells the printer the hatch is closed wasn't being activated.

Not very scientific and a bit of a bodge, but some suitably placed selotape / duct tape / insulating tape to hold the cover firmly closed did the trick.

Hope this helps.

Aug 11, 2009 | Canon PIXMA iP4200 InkJet Photo Printer

2 Answers

What does the trouble code on a cannon printer

Hi there,

The 6500 error code is a logic board error code. The PCI Bus error is detected by the ASCI. Sounds like it needs new logic board. but i suggest you to first of all you can try to reset your printer -

1. Turn the printer off with the Power button (if available).
2. Disconnect the data cable from the printer.
3. Unplug the printer's power cord for approximately 10 minutes, and then plug it back in. 
4. Turn the printer back on. If this works you're done, if not try the next step.

1. After confirming that the printer is powered on, open the paper output tray.
2. Open the top cover and wait until the print head moves to the center.
3. Open the inner cover and check that ink tanks are properly seated.
4. Properly seated
5. Press down on each ink tank until a click is heard.
6. Close the inner cover and top cover

if reset method not works for you then you go for the new logic board replacement .............


Jul 17, 2009 | Canon PIXMA MP170 All-In-One InkJet...

1 Answer

Getting error P33 on Konica 3035

need to replace door interlock switch ms501 or the tab on the door that actuates the switch got broke off when trying to remove the jam

Mar 20, 2009 | Konica Minolta Printers & Copiers

1 Answer

Error Message

Thats an interlock switch, you can fold a piece of paper into a one inch long piece and then stick it in th "plug" this will over ride the switch, you probably have broken the plastic piece that is located on the cover that tells the printer that the cover is closed.

Sep 28, 2008 | Ricoh Aficio CL3500N Laser Printer

2 Answers

'Doc Cover open' error message

look for switch where the doc door closes and insert a piece of paper to trigger it, message should clear, adjust switch.

Aug 21, 2008 | Brother MFC 8440 All-In-One Laser Printer

1 Answer

Error msg..."close ADF cover". Where is it?

Adf : auto doc feeder

the top that you put the pappers in to copy mare than one sheet.
make sure all doors are closed.

lift doc feederas if making copy on glass look where the hinges are there should be a plunger next to one of them, that is the switch to tell it if it's open or flat. try pressing it down to see if message goes away, it may need adjusting.

Jul 15, 2008 | Ricoh Aficio 1013F Copier

1 Answer


The order iin which you open and close two of the covers is important, as there is an interlock between two of them. This can (and does) get damaged.

The toner access door is the first one you open, THEN the top cover (the one that gives access to the Transfer Belt and Drum.

Make sure the Drum unit is properly pushed into the printer, and that the Transfer Belt is lacated properly AND the two locking levers fot the Transfer Belt are in their locked positions PROPERLY.

THEN close top cover - you shouldn't need to force it.
Followed by the Toner access door.

Yes check the duplex door too !

If this fails it is likely to be a broken case part, or failed sensor.

Dec 26, 2007 | Samsung CLP-500 Laser Printer

1 Answer

Xerox XC540 copier fails to feed bland sheet

sounds like there is something not pushing down the plunger, or may need to adjust switch to make it higher.

Oct 19, 2007 | Printers & Copiers

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