Brother MFC 440CN
unable to print 51

How to Identify and Fix Common printer Problems ?

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The error message “Unable to Print 51” is a common Brother printer error, indicating that there is a problem with the laser unit. If you have recently changed the cartridge of your Brother printer, it is highly probable that either the cartridge, the laser, or the lid was not put into proper position.
If the status is Offline, the printer driver is not working. Select the printer driver that status is not Offline. If you always want to print from this printer, right click on the icon of the machine and select set as default printer. And then you will see the check mark on the machine.
The message “Unable to Print 44” will appear on the display for one of the following reasons: i. A foreign object, such as a paper clip or ripped piece of paper, is stuck in the machine; ii. Mechanical malfunction.
“Print Unable 04” indicates that a hardware malfunction has occurred.
Err 51 – Inverter temperature too high

A high ambient temperature or enduring high load may result in shut down to over temperature.

(Note: Sam`s laser diode notes — Diode Laser chapter of Sam`s Laser FAQ.) (From: Tom Dunn ([email protected]).) Error code 51 indicates loss of laser beam for over 2 seconds. Check -5 V, also make sure there is no interlock mechanism damage, and +5 V at J451-1 on Laser Drive PCA.
If you start getting error code 0x0000011b after installing the latest Windows updates, uninstall them and see if that helps. Many Windows 11 users confirmed that uninstalling KBKB5005565 and KB5005568 resolved the issue.
4/0 refers to printing 4 colors on one side of the paper and 0 colors on the other side of the paper. 4/4 means 4 colors printed on both sides of the paper. The four colors in process color printing are CMYK, (Cyan, Magenta, Yellow and Key – which is black.)
4/0: This represents full color printing on the front side with the backside blank. 4/1: This means full color on the front and black and white on the back of a document. 4/4: This is known as “four over four.” It means that there are four ink colors applied to the back and front of a document.
The [51] Decline code error means that there are insufficient funds on your credit card to process the payment. To fix this issue, submit your payment using a different credit card or call your credit card issuer (the phone number is usually on the back of your card).
Invalid memory type or incompatible memory speed.”
Decline code 51 is the processing response for insufficient funds, or an exceeded credit limit. When you get this decline code, it`s not a good idea to try to process the card again without voice authorization.
If a generic error occurs when your computer pages information to or from the disk, an Event ID 51 event message is logged. In a paging operation, the operating system either swaps a page of memory from memory to disk, or retrieves a page of memory from disk to memory. It`s part of the memory management of Windows.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

when printing front and back, the front will print well but the back will fade
ANSWER : It happens because second side voltage is much higher and the board breaks. Are you getting this issue in auto duplex only, or same error you are getting when you print second side manually?

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Brother MFC 440CN

UNABLE TO PRINT
ANSWER : http://www.fixyourownprinter.com/posts/59041

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Brother MFC 440CN

Print Unable EC
ANSWER : Check out this forum thread for an answer http://www.fixyourownprinter.com/posts/59609

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Brother MFC 440CN

printer error code unable to print 4f
ANSWER : Follow these instructions:

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Brother MFC 440CN

Error A2 unable print
ANSWER : http://fixyourownprinter.com/posts/75749

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Brother MFC 440CN

Unable to print 4F
ANSWER : http://www.fixyourownprinter.com/posts/43122

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Brother MFC 440CN

Unable to print
ANSWER : When you attempt to print or view the print review of a website page in Write my Assignment Internet Explorer the site page may not print or print see accurately and you may get a script blunder.

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Brother MFC 440CN

Print file sent but no printing occurs
ANSWER : Been working on these since they first were released. Never seen a problem like yours. If it happens again, try doing an engine test, as it bypasses the formatter board. The engine test is located at the right side of the manual tray opening. Look for a hole in the side wall. Stick something like a paper clip into it to actuate the test button. It will then print a lined test page. If it does that, then it points to the formatter board as the cause of your problem.

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Brother MFC 440CN