HP Laserjet 4Si and 4SiMX
The LaserJet 4 family is not a model of printer, there are 4 engine variants - the "4", "4P", "4V" and "4Si" which are all quite distinctive. So the LaserJet 4 is not so much a model as a generation of "laserjet" - and particularly of the PCL and PostScript languages and the computer system drivers.
The HP 4Si was HP's heavy-duty model in the LJ4 family. It is based on the Canon "NX" engine with a output of 17ppm letter (16ppm A4). The engine is quite like the EX engine but "bigger boned" with room for two 500 sheet trays and easy incorporation of a duplex unit.
The 4Si MX was a postscript model aimed at graphics artists and Apple Mac users.
- LaserJet 4SI - C2010A - PCL
- LaserJet 4SI MX - C2011A - PCL and PostScript version
The 4Si was introduced in April 1993 so its a very old design. Physically it's a bit of a monster so it is now rare, although given enough memory it can still do a good job.
However to the best of my knowledge I'm the last user (as at 2009)
Control:
LCD control panel with 2 lines and a set of 8 buttons for menu. The control panel is similar to other "4" series. The prompts and key pushes are not quite intuitive but the printer can print out a menu to help.
Duty Cycle:
75,000 pages per month
Print Speed:
16 ppm A4
Print Resolution:
600x600 dpi
Paper Handling:
A4 and letter paper path. Ships with 2 x 500 sheet trays.
Tray 1:500 Sheets Tray
Tray 2:500 Sheets Tray
Face Down:
Default output is to a face-down tray on top of the printer.
Duplex:
Duplex can be fitted within (Many of these printers have it)
Memory:
2MB, Expandable to 64MB
Interface:
Parallel
Network:
2 x MIO Slots
Network Protocols:
Support depends on the MIO card installed. There were options for token ring and ethernet.
System Compatability:
Vitually all systems can use the 4SI MX with it's PostScript support. It works with Linux - although it can be very slow printing things like Google earth.
Consumables:
Toner cartridge for 4Si with 8,000 page yield at 5% cover. - 92291A
Maintenance Kit:
Maintenance kit - C2062-67901
Maintenance kit 220V - C2087-67902
Spares:
Delivery Roller - RB1-0531
Roller - RB1-0559
Pickup roller - RF5-0041
Transfer roller - RG5-0141