Brother HL-1000 Series User Manual page 36

Note
The HL-1050 can also support DIB graphics with a resolution of 1200 x
600 dpi under Windows 95/98/3.1 with the supplied printer driver.
We recommend to expand the printer memory to avoid any memory full
error.
Note
The printer has only one slot for a SIMM upgrade. If you want to increase
your printer memory again after you have already installed a SIMM
module into the slot, you will need to remove the previously installed
SIMM first. For example if you had previously increased the printer
memory from the standard 4MB to 12MB by adding an 8MB SIMM and
you wish to increase your total memory to 36 MB, you need to remove
the installed 8MB SIMM and install a new 32MB SIMM into the printer.
Installing the SIMM
To install the SIMM, follow these steps:
1. Turn off the power switch and unplug the AC cord from the AC
outlet. Disconnect the interface cable (printer cable) from the printer.
Fig. 4-3 Unplug the AC Cord
and Disconnect the Interface Cable
!
Caution
Be sure to turn off the power switch and unplug the AC cord to the
printer before installing or removing the SIMM to/from the main
controller board.
CHAPTER 4 OPTIONS
4-7