Question about Lexmark Optra M410 Laser Printer

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939 service system board; what it's mean.


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First, make sure the printer power is off and remove the RIP board. When you turn the printer back on, the only option on the display will be to perform the test. Pressing the button next to that begins the test. The page that comes out should have just a lot of lines printed on it. If this does not print or is somehow messed up, then the problem must be with the engine board. If this page prints and looks OK, then it is probably the RIP board that should be replaced. Please keep in mind that this test cannot be considered to be conclusive but it can be used to make an educated guess about which component is failing.

When the printer beeps five times and the operator panel is blank, there are several things that might cause this. It could be the op panel, the op panel cable, the Low Voltage Power Supply (LVPS), or the engine board. To find out which component is failing, the printer would need to be checked out by a service technician and the failing component replaced by him/her.

Posted on Jul 13, 2009


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1. E677 error means that "The communication between the printer board and the machine has a fault."
2. Check the connection between the
printer board and the PDL I/F
board and the system motherboard.
Is any of the pins bent or otherwise
not normal?
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T644 won't print - message says "900.43 Service RIP Software" - What does that mean??

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Computer turns on but nothing is dispalyed

You say the PC turns on... does this mean that it goes through POST (u hear those beeps etc)? This means that you have power but no apparently no video.

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Lexmark Optra M412

error 939 means --
RIP Communications Lost 
Controller EngineCommunications Lost 
The controller board and the engine board cannot
communicate with one another.

Solution --
POR several times
Check each board
for secure ground.
Replace the assys
in the following
1. Controller Bd
2. Engine Board
3. Intterconnect

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OSD just means "On Screen Display" the menu system and the service menu are the OSD.

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