Brother HL 1240 - B/W Laser Printer Service Manual page 172

APPENDIX
APPENDIX
The default values for the main items to be set in NVRAM are as follows;
Items
Timing of Drum LED ON
Development switching
timing
Fixing temperature
Smaller size mode
6. NVRAM DEFAULT VALUE
Descriptions
16,000 page
(Counted from the drum unit life.)
The developing bias is switched from 475V to 375V when
3,000 pages are printed.
(Counted from the number of the drum rotation in non-
continuous printing)





See
SETTINGS'.
Transparency: 163°C
Thin paper: 183°C
Regular paper: 195°C
Thick paper: 215°C
Thicker/Bond paper: 215°C (in non-continuous printing)
APPENDIX 3 'PRINT SPEEDS WITH VARIOUS
A-14