Connector Pin Assignments

Presario 1200 Series

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252

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This appendix provides connector pin assignment tables for Compaq Presario 1200 Series Portable Computers. For more information on connectors, refer to the section on Rear Connectors.

NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated by an asterisk (*).

Parallel Connector

Pin	Signal	Pin	Signal
1	Strobe*	10	Acknowledge*
2	Data Bit 0	11	Busy
3	Data Bit 1	12	Paper Out
4	Data Bit 2	13	Select
5	Data Bit 3	14	Auto Linefeed*
6	Data Bit 4	15	Error*
7	Data Bit 5	16	Initialize Printer*
8	Data Bit 6	17	Select In*
9	Data Bit 7	18-25	Signal Ground

* = Active low

	Serial Connector
Connector	Pin	Signal

1Carrier Detect

2Receive Data

3Transmit Data

4Data Terminal Ready

5Signal Ground

6Data Set Ready

7Ready to Send

8Clear to Send

9Ring Indicator

Keyboard/Mouse

Connector

Signal

1Data 1

2Data 2

3Ground

4+5 V

5Clock 1

6Clock 2

External VGA Monitor

Connector

Signal

1Red Analog

2Green Analog

3Blue Analog

4Not connected

5Ground

6Ground Analog

7Ground Analog

8Ground Analog

9Not connected

10Ground

11Monitor Detect

12DDC2B Data

13Horizontal Sync

14Vertical Sync

15DDC2B Clock

Universal Serial Bus

Connector

Signal

1+5V

2Data -

3Data +

Ground

Modem

Connector

Signal

1Unused

2Unused

3Tip

4Ring

5Unused

6Unused

1242, 1234 specifications

The HP 1234 and HP 1242 are two impressive devices from Hewlett-Packard, designed primarily for home and small office users who need reliable printing solutions that combine efficiency with high-quality performance. Both models are tailored to meet modern printing demands, offering a variety of features and technologies that enhance usability and productivity.

One of the standout features of the HP 1234 is its compact design, making it an excellent choice for users with limited workspace. Despite its small footprint, this printer boasts a robust set of functionalities. It supports wireless connectivity, allowing users to print from their smartphones, tablets, and laptops without the hassle of tangled cables. The setup is straightforward, making it easy for even the most tech-challenged individuals to get started.

The HP 1242 expands upon this by incorporating additional features suited for higher volume printing tasks. It includes automatic duplex printing, enabling users to print double-sided documents effortlessly, which helps save both paper and costs. Both models support a range of media types, including glossy photo paper and envelopes, making them versatile for various printing needs.

In terms of print quality, the HP 1234 and 1242 employ advanced inkjet technology that produces sharp text and vibrant images. The color accuracy and detail provided by these printers make them suitable for printing everything from professional documents to high-resolution photos. With print speeds of up to 20 pages per minute for black and white documents, both models are designed for efficiency, helping users complete their tasks quickly.

Moreover, the HP Smart App enhances the printing experience, offering users the ability to manage print jobs, scan documents, and even order supplies directly from their devices. This innovation simplifies the entire printing process, adding to the overall user-friendliness of both models.

Energy efficiency is another characteristic that sets the HP 1234 and 1242 apart. They are designed to minimize power consumption, making them environmentally friendly options for consumers who wish to reduce their carbon footprint.

In summary, the HP 1234 and 1242 printers exemplify HP's commitment to providing efficient, high-quality printing solutions. With their compact designs, wireless capabilities, advanced inkjet technology, and user-friendly features, they are ideal choices for home and small office use, effectively meeting a variety of printing needs while remaining economically and environmentally efficient.

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