On Dec 23, 2008, at 12:40 AM, Paul wrote:

> Most of the Laserjets with a good reputation use a Canon printing
> engine. For instance, the Canon LBP-32X engine is in all of these
> printers:
>
> Canon LBP-1000
> Canon LBP-32X
> Canon P 100
> HP LaserJet 2100
> HP LaserJet 2100m
> HP LaserJet 2100se
> HP LaserJet 2100tn
> HP LaserJet 2100xi
> HP LaserJet 2200d
> HP LaserJet 2200dn
> HP LaserJet 2200dt
> HP LaserJet 2200dtn
> HP LaserJet 2210

Canon's generic products (those which have all the capabilities of a  
"marking engine", but no interface besides its proprietary "video  
interface") are all called LBPs ... Laser Beam Printers.

The early LaserWriters were quite simply an LBP with an Apple- 
designed PostScript RIP (Raster Image Processor), with the PostScript  
interpreter from Adobe Systems. (Adobe designed numerous RIPs ...  
Atlas, Redstone, etcetera, all generally named for missiles ... but  
Apple's RIP was its own design, and was considerably simpler that of  
Adobe's, or anyone else's ... more reliable, too). The basic LBP had  
its top removed and replaced by an Apple-molded top (the piece with  
the Apple logo). The Apple RIP was fitted into holes already present  
in the LBP, and the RIP was cabled to the LBP's video interface, and  
also to the RS-422/RS-232 connector box, which replaced Canon's video  
connector box).

LaserWriter and LaserWriter Plus = LBP-CX = CX Marking Engine (Also  
LaserJet and LaserJet Plus)

LaserWriter II = LBP-SX = SX Marking Engine (Also LaserJet II and III)

LaserWriter Pro 630 and LaserWriter 16/600 = LBP-EX = EX Marking  
Engine (Also LaserJet 4)

Canon LBPs of most types are one of the few printer families for  
which replacement and repair parts are widely available.

Countless LaserWriters and LaserJets are discarded each year because  
of a failed (paper) pickup roller, which are widely available for  
about $6, yet take several hours to install.

Fuser rollers are available, too, for about $10, but the replacement  
procedure is quite difficult. Complete fuser assemblies are often  
available at reasonable cost, about $50 for the most popular models,  
on an exchange basis.

Apple has never offered its LaserWriter repair manuals for sale.  
However, HP has, and although these initially cost about $25, these  
now cost several times that amount.

Doubtless, one can probably find a scan of a repair manual on-line.


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