HP 82240

HP 82240A

A HP 82240A infrared thermal printer
Predecessor	HP 82143A and HP 82242A
Successor	HP 82240B
CPU
Processor	Toshiba TMP80C50AP
Programming
Interfaces
Connection	Redeye infrared
Ports	DC barrel jack, infrared receiver
Other

The HP 82240 series was a line of thermal printers that support infrared communication with many HP calculators and various other devices.

HP 82240B

Type	Printer
Predecessor	HP 82240A
CPU
Processor	OKI M80C50
Programming
Interfaces
Connection	Redeye infrared
Ports	DC barrel jack, infrared receiver
Other

Printing to 58mm (tolerance+0/-1) thermal paper using a Seiko Industries MTP201-G166 print head with bitmap capability, these machines were also used by many instruments from manufacturers other than HP. Its influence can still be seen today where many equipment and thermal printers still use protocols derived from those first used on the HP 82240.

The printer is powered by four AA batteries and can accept alkaline or NiMH cells. External power is supplied via a common nonpolar 5.5mm/2.1mm AC jack. The manual calls for 9-12V AC or DC at 500-1500mA and thus can be used with most common barrel jack power supplies. The original power adapter HP 82241A is rated for 9V AC at 13.5VA. The printer works on either internal, external or a combination of both.

Supported calculators

HP calculators

• HP 17B
• HP 17BII
• HP 17BII+
• HP 18C
• HP 19B
• HP 19BII
• HP 27S
• HP 28C
• HP 28S
• HP 38G
• HP 39G
• HP 39GS
• HP 41C, CX, CV (with IR-Interface module HP 82242)
• HP 42S
• HP 48S
• HP 48SX
• HP 48G
• HP 48GII
• HP 48GX
• HP 48G+
• HP 49G+
• HP 50G (IrDA, but switchable to 82240 protocol, distance less than 20mm)

Non-HP calculators

• WP 34S

External resources

• HP 82240 thermal printers at keesvandersanden.nl

See also

• HP 41