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CSCAN(1) General Commands Manual CSCAN(1) NAME cscan - scan documents on canon scanner SYNOPSIS cscan [ option ... ] [ file ... ] DESCRIPTION Cscan acquires black-and-white images using the Canon 9030 Laser Copier flatbed document scanner located in the Graphics Lab. Each file re- ceives one image; multiple files are scanned as fast as possible (every 12s, after a startup delay). If no file is specified, one image is written to the standard output. Each image is compressed using the CCITT FAX Group 4 standard and sup- plied with a header as described in picfile(5). The default page for- mat is 3456 by 4400 pixels (i.e. letter-size 8.64"x11.0" at 400 pix- els/inch digitizing resolution). The options are: -fx,y Format is x by y pixels. X is truncated to a multiple of 32. -fL Double-letter format -f4416,6800 or 11"x17" at 400 pixels/inch (the largest possible). -ss Sleep between scans for an extra s seconds. -v Verbose: announce each file as it arrives. SEE ALSO bcp(1), ocr(1), picfile(5) BUGS Although only 10s are required to acquire and compress each image, it can take 40s for the first file to appear, due largely to networking latencies involving rcp(1). Cscan is unkillable: scanning continues and the files keep coming. The automatic document feeder is not supported. The resolution recorded in the header is always 400 pixels/inch, even though it is possible manually to zoom to other resolutions. coma,pipe CSCAN(1)