Optional apparatus connectable to other apparatus
US5841362A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1996 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Feb 6, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/423
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An optional apparatus which can be connected to a printer or other optional apparatus includes a communication section for communicating with other apparatus and a control section which executes a command in response to the command received via the communication section; wherein the communication section has a first communication path for receiving a data string from an apparatus on the upstream side in communication and for transmitting the received data string to an apparatus on the downstream side of the communication and a second communication path for receiving a data string received from the apparatus on the downstream side of communication and for transmitting the received data string to the apparatus on the upstream side of the communication; and the control section executes a command in the command string received via the first communication path or the second communication path and loads the data indicating the execution result of the command in the command string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.