Mettler Toledo Product Fault Notification


It has come to our attention that some printers in our product range have been supplied to you with a fault that in some circumstances could result in the generation of an erroneous record of data generated by the instruments to which the printer is attached. Action is needed to identify if the products you have purchased are at risk of showing the problem and if so to correct the device so the possibility of the error arising is removed.

Products Affected

The products covered by this notification:

rs-p42LC-P45, G45
RS-P42LC-P45, GA45

Printer typeMarket IntroductionPhase Out
LC-P451993Current production
RS-P422003Current production
GA4519871993

Description of Fault

If a Printer belonging to one of the series LC-P45, RS-P42, GA45 is operated with a baud rate of 9600 or 4800, under certain conditions one or more individual characters may be missing on the printout. The fact that a character is missing may not be obvious as following text is shifted to the left.

The risks associated with this error are that data sent to the printer may be incorrectly printed such that data records may be incorrect.

Conditions under which the fault could occur

The problem can arise where the following conditions occur simultaneously:
1. A Printer of the series LC-P45 or RS-P42 or GA45 is used, and
2. The Printer is connected to any of the following METTLER TOLEDO products: AX, MX, UMX, XS, XP, WX, XJ, PG-S, AB-S, PBS, AB, PB, SB Balances or to an HB or MJ Moisture Analyzer, and
3. The Printer communicates with the balance at a baud rate of 9600 or 4800, and
4. More than 1 line is printed on the printer

Correcting the Fault.

The problem can easily be prevented by changing the data communication baud rate on both printer and balance to a speed which is not affected by the problem. We would ask all users to contact us for advice on how to make this change (subject to the specific combination of instruments involved), and also to enable us to track the implementation of the correction on the installed base of these products.

Action Required

We would therefore ask that you take the necessary steps to identify the whereabouts of the products in question within your organisation and ask the users to complete the below form. Please return it to us as soon as possible, so that we can assess the action required to correct any problem that may exist.



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