HP LaserJet 4 Service Manual - Page 397

Features Interfaces MIO Slots EconoMode Cartridge Slot Power Save Monthly Usage (pages) HP LJ 4+ HP LJ4M+ HPLJ5 HPLJ5M Serial (9 pin) Parallel 1 Yes Serial (9 pin) Parallel Local Talk Serial (9 pin) Parallel Local Talk Ethernet Serial Infrared*** Serial (9 pin) Parallel Local Talk Ethernet Serial Infrared*** 1 1 1 Yes Yes Yes Yes Yes Up to 20,000 Yes Yes Up to 20,000 No Yes Up to 35,000 No Yes Up to 35,000 HPLJ5N Serial (9 pin) Parallel 10-baseT Serial Infrared*** 1 Yes No Yes Up to 35,000 *The PostScript upgrade requires an additional 4 MB SIMM. **PostScript & Memory SIMM already occupy 2 slots. ***Requires C2929A IR transceiver pod. Product Family Information The model HP C3916A, C3917A, and C3952A are very similar from a hardware service standpoint. The models HP C2039A and C3917A printers add the following features: • PostScript Level 2 SIMM • AppleTalk MIO Card • 4 MBytes of RAM (2 MBytes for the C3917A) The model HP C3952A adds a 10-baseT MIO card to the base C3916A printer. In every instance the repair procedures for all LaserJet 4+ and LaserJet 5 printers products are very similar. Some LaserJet 4+ accessories are compatible with the LaserJet 5/5M/5N and some are not. The compatibility chart below may be used when there is a question of accessory compatibility. LaserJet 5/5M/5N Printer B-3