Brother HL 1240 - B/W Laser Printer Service Manual page 166

APPENDIX
4. How to Read the Maintenance Information
The maintenance information such as the frequency of consumable parts replacement or
paper jam is known from the 17-digit numbers shown in the lower line on the right below the
drum unit life bar.
NOTE:
The 17-digit numbers is also shown in the Printer Information dialog box which is one of the
self-diagnostics tools. For details, refer to
To obtain the maintenance information, you need to implement the Maintenance Information
utility which supplied on Service Databank by following the steps below;
1) Download the Maintenance
Information utility from the
Printer Utility DB in Service
Databank.
2) Open the utility, then select
'Decode the 4-byte data' in
the menu.
3) Enter the 8-digit numbers of
the 17-digit.
4) Click the OK button.
5) The dialog box shown at the
right will appear and show
the frequencies of drum unit
change, toner cartridge
change and paper jam.
Section 3 'Printer Information' in APPENDIX
Fig. A-3
Fig. A-4
Fig. A-5
A-8
5.