Home Computing Weekly


GP COPY
By Logic Systems
BBC Model B

 
Published in Home Computing Weekly #30

This program is for those BBC owners with a Seikosha GP80, 100 or 250 dot matrix printer. It allows high resolution screens to be copied to the printer at the touch of a button.

The routine loads into a reserved section of memory and is accessed by a three-line addition which you simply tack on to the end of your graphics program.

It will produce a screen copy in modes 0, 1, 2, 4 and 5, and has the option of altering which logical colour on the screen will be represented by black on the printer.

If you don't want to use up half a printer ribbon in one go it is better to set the printout background colour to white, so that all black sections of the screen appear white on the copy. This does not affect the rest of the colours, which appear in shades of grey.

The routine took approximately six minutes to produce a mode 0 dump with most of the screen used.

Instructions were clear, but the manufacturers do recommend that users read their printer manuals carefully before using the copier. Even so, the routine was very easy to use, only requiring the press of any key to produce the printout.

D.A.

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