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Print head assembly on my Lexmark Optra S 1855 needs to be replaced. My question is what causes the print head to malfunction in the first place?

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I guess you're getting an error message which is normally one of the below (causes underneath)

Error Code 931
No first HYSNC Signal
Error Code 932
Lost HYSNC =

These errors usually indicate a
failure in the HYSNC signal to the
printhead. Check the continuity of
the cables connected to J3 and J8
on the engine board. If incorrect,
replace the defective cable. The
voltage at J8-4 measures
approximately +5 V dc. If incorrect,
replace the engine board. The
voltage at J3-7 measures
approximately +24 V dc. If incorrect,
replace the engine board. If correct,
replace the printhead assembly.


Error Code 934
Mirror Motor Lost Lock
Error Code 935
Mirror Motor unable to
reach operating speed =

These error codes indicate a
problem with the mirror motor circuit
in the printhead assembly or the
mirror motor cable to the engine
board cable or engine board
assembly. Check the continuity of
the mirror motor cable connected to
J3 on the engine board. If incorrect,
replace the cable. The voltage at
J3-7 measures approximately
+24 V dc. If incorrect, replace the
engine board. If correct, replace the
FRUs in the following order:
engine board
printhead assembly

Posted on Jun 20, 2008

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SERVICE PRINTER ERROR: 934 ON LEXMARK OPTRA S 1620


These error codes indicate a problem with the mirror motor circuit
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The mirror motor cable or engine board would possibly needs to be replaced. Please contact our technical support team for assistance.

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Good morning, I bought a acer aspire 7540G laptop with Windows 7, 64 bit. I connected the Lexmark Optra S 1855 printer with the USB but my computer cannot find the driver. Where can I find the correct...


You may click on the following links below to download the available printer driver for this printer model.

http://bit.ly/oLHVX3 - 64-bit PCL XL Emulation Print Driver Universal Print Driver

http://bit.ly/p0RF71 - 64-bit PCL 5 Emulation Print Driver Universal Print Driver

http://bit.ly/oOi99g - 64-bit PostScript Level 3 Emulation Printer Driver Universal Print Driver

For further assistance, please contact Lexmark Technical Support

Jul 26, 2011 | Lexmark Optra S 1855 Laser Printer

1 Answer

My Lexmark Optra S 1855 has a "printhead error". How do I fix this error?


Hi,


First thing to do is get the top off which can be easier said than done. The printer has four screws holding the top. After that remove the control panel by undoing the four screws holding it in place. This isn't strictly necessary but it makes life easier. Now move the print head to the left. To do this you have to lower a locking bar that is located at the base of the head. The head can be quite hard to move but it does slide left. Under the print heads you will find two pads of hard foam. These collect the ink when you perform a normal head clean and keep the print head moist. Soak these with water . Pool water on them and let it run through (it goes through to a large pad at the bottom of the machine by the way). Fold some tissue and lay it on the base when the heads pass over. Push the head back and forth over the tissue to clean the actual head. The tissue will come out covered in ink.Now for the tricky part get an old printer cartridge and remove the label on top that says "do not remove". Under the label you will find a couple of holes. Widen them / open them with a drill bit about 3 mm is good. Fill the cartridge with water and put it in the printer. Push the heads back over to the right as far as they will go. This will cause the sponges to come right up against the heads. Leave the set up over night. In the morning test the printer. Run a couple of head cleans with the cleaning cartridge in. Your problem is solved now

Thank you!

Jul 21, 2010 | Lexmark Optra S 1855 Laser Printer

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I HAVE A LEXMARK OPTRA S 1855 DISPLAY NOT READABLE HOW DO I PRINT A TEST PAGE UNHOOKED FROM THE COMPUTER?


Hello, Leo.

Here are the steps:

  1. Turn the printer power off (O).
  2. Press and hold Select and Return together.
  3. Turn on the printer.
  4. Release the buttons once Performing Self Test appears on the operator panel display.
  5. The printer performs its normal POR cycle, then prints one copy of the Print Quality Test pages.
Hope this helps.

Oct 15, 2009 | Lexmark Optra S 1855 Laser Printer

1 Answer

Lexmark optra s1855 makes knocking noise when printing envelopes from the mp tray


this noise is usuallt cause by a flat spot on the backup roller of the fuser remove the fuser turn it by hand if you feel a flt spot when turning replace the fuser

Sep 23, 2009 | Lexmark Optra S 1855 Laser Printer

1 Answer

Swap parts between Optra S 1255 and 1855


I can say for sure that these parts do not translate. The service manual says.

Jun 09, 2009 | Lexmark Optra S 1855 Laser Printer

1 Answer

I am getting a 922 fuser error on a Lexmark laser printer.


Hello. My dad had the same problem with his lexmark printer and he took it to a repair place where he was informed it is a problem with some part of the mother board causing the info from the computer to not be read by the printer. Long story short... is cheaper to buy a new printer than to fix the problem. He was also told this problem occurs in many lexmark models. Hope this helps you.

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1 Answer

My Lexmark Optra S 1855 is showing a fuser error. What needs to be done?


the fuser needs to be replaced its about 200 dollars just search for Fuser for the model of your printer


Thank You John C

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1 Answer

Can't print from bottom drawer, will only print from tray,


There are at least three possible solutions. The first two are simple the third is fairly complicated unlr=ess you can read a hex dump of a print file. 1) Use the front panel "Paper Menu" to select the tray. 2) Check the driver settings to make sure the driver is set to "Auto" or the correct tray. 3) Set the driver to "Print to File". When prompted to name the print file, name it "tray_fail". If you do not know how to read this file, send it to me at janddgasrepair@verison.net and I'll be happy to take a look at it and see I I can correct the problem. Don

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