CPCI 8bit Printer Mod - Revision history

TFM: /* Note */ added information

2021-04-19T18:28:34Z

Note: added information

← Older revision		Revision as of 18:28, 19 April 2021
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	== Note ==		== Note ==
	Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).		Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]). This modification is fully supported by [[FutureOS]].

TFM: spelling fixed

2021-04-19T18:26:27Z

spelling fixed

← Older revision		Revision as of 18:26, 19 April 2021
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	[[Category:Printers and printer ports]][[Category:DIY]]		[[Category:Printers and printer ports]][[Category:DIY]]
	An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from ~~german magizine~~ [[CPC Schneider International]] (issue 12'85, page 64).		An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from German magazine [[CPC Schneider International]] (issue 12'85, page 64).
	Connects Printer Bit7 to ~~Joystick1~~ Select signal (joystick port pin8).		Connects Printer Bit7 to Joystick 1 Select signal (joystick port pin8).

	This solution isn't too ~~recommened~~. Some drawbacks and problems are:		This solution isn't too recommended. Some drawbacks and problems are:
	* Joystick Select is an open-collector output, so HIGH levels may be unstable (this could be fixed by an additional pull-up resistor).		* Joystick Select is an open-collector output, so HIGH levels may be unstable (this could be fixed by an additional pull-up resistor).
	* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).		* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).
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	== Note ==		== Note ==

	Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).		Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).

MacDeath at 01:29, 17 December 2010

2010-12-17T01:29:05Z

← Older revision		Revision as of 01:29, 17 December 2010
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			[[Category:Printers and printer ports]][[Category:DIY]]
	An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).		An [[8bit Printer Ports\|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).
	Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).		Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).

Nocash at 22:34, 3 August 2010

2010-08-03T22:34:47Z

← Older revision		Revision as of 22:34, 3 August 2010
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	* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).		* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).

	~~'''Note:''' Some years later~~ the ~~same magazine (renamed~~ to ~~[[PC Amstrad International]], issue 8~~/~~9'91, page 69) released another 8bit~~ printer ~~mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]])~~.		The circuit can be connected internally to the mainboard, or externally to the joystick/printer port connectors.

	== Original Article ==		== Original Article ==
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	File:CPCI issue 12 85 page 64 8bit printer port.jpg		File:CPCI issue 12 85 page 64 8bit printer port.jpg
	</gallery>		</gallery>

			== Note ==

			Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).

Nocash: Created page with 'An 8bit Printer Port DIY extension from german magizine CPC Schneider International (issue 12'85, page 64). Connects Printer Bit7 to Joystick1 Select s…'

2010-08-03T22:32:50Z

Created page with 'An 8bit Printer Port DIY extension from german magizine CPC Schneider International (issue 12'85, page 64). Connects Printer Bit7 to Joystick1 Select s…'

New page

An [[8bit Printer Ports|8bit Printer Port]] DIY extension from german magizine [[CPC Schneider International]] (issue 12'85, page 64).
Connects Printer Bit7 to Joystick1 Select signal (joystick port pin8).

This solution isn't too recommened. Some drawbacks and problems are:
* Joystick Select is an open-collector output, so HIGH levels may be unstable (this could be fixed by an additional pull-up resistor).
* Bit7 may tend to be HIGH by default, so printing normal text won't work with normal software that doesn't support the mod (the schematic includes a switch to disable the mod manually).

'''Note:''' Some years later the same magazine (renamed to [[PC Amstrad International]], issue 8/9'91, page 69) released another 8bit printer mod: This newer (and better) solution uses PPI.Pin12 (same as the [[Happy Computer 8bit Printer Mod]]).

== Original Article ==

<gallery>
File:CPCI issue 12 85 page 64 8bit printer port.jpg
</gallery>