Apple PRO 600E Printer User Manual


 
APPENDICES
Installing additional memory B
Your printer is shipped with 32 MB of RAM and is upgradable to a maximum of 128 MB, 64 MB
per socket. Additional memory helps to free the host computer more quickly.
Acceptable SIMM sizes
Printer memory may be upgraded by installing 72-pin 70 nanosecond (or faster) SIMMs that are
either 32 or 36 bits wide. (The printer does not use parity bits.) The SIMMs must not exceed a
height of 2 inches (5 cm) and must conform to JEDEC Std. 21-C, release 4.
The printer will accept 4 MB, 8 MB, 16 MB, 32 MB or 64 MB SIMMs. Recommended SIMMs are
ENCAD PN 210610 32MB SIMMS.
SIMM installation
The SIMMs are located on the MPCB inside the right cover. The MPCB comes with one SIMM
slot empty and 32 MB RAM SIMM installed on the board. The following procedures describe
how to remove the right cover, remove any currently installed SIMM(s), install new SIMM(s)
and replace the cover. You will need a #2 Phillips screwdriver to complete the procedures.
! ALWAYS UNPLUG THE POWER CORD BEFORE BEGINNING.
! To avoid static damage to the printer, never touch the circuit board or its compo-
nents without first touching the bright metal portions of the printer. Static
damage is more likely when the relative humidity is low. If possible, wear a ground-
ing strap when touching the circuit board.
To remove the right cover
1 Disconnect the power and the interface cables.
2 Remove the printer's top cover.
3 Remove the three screws under the right side of the printer which attach the right
side cover and the two screws which attach the cover to the right plate.
4 Slide back the pin that holds the right cover to the rear cover.
5 Move the right cover, being careful to clear the parallel port on the back of the unit.
6 Carefully disconnect the ribbon cable from the connector on the PC board and the
other two cables that go to the cover.