Description:
NuBus card contains a Raster Image Processor for directly controlling a laser printer via the external DB-37 port. This example includes 6 1MB SIMMs used as buffer cache. (?)
Identifying Numbers:
MX6C Rev. 03; MX6K/6T REV3B/A; PR4-603-002 •9010 (ROM); 1009190
Onboard logic:
LM (x2); Signetics 27C256 -12 (ROM)

Description:
NuBus card contains a Raster Image Processor for directly controlling a laser printer via the external DB-37 port. This example includes 8 1MB(?) SIMMs used as buffer cache. (?)
Identifying Numbers:
MKX RV4; MKXF/20T RV4C/A; PGA-090A-CES-10043; PR3-920-000 @ 9345 (ROM)
Onboard logic:
LaserMAX ICLMC; Signetics 27C256-15 N (ROM)
There are more chips beneath the ROM.