Seiko Epson Corporation

Seiko Espon Corporation

Takuya Hyonaga

Naohiko Koakutsu

Mitsuaki Teradaira

Masayo Miyasaka

Takaaki Akiyama

Kazuhisa Aruga

Hiroshi Ono

Yoshikazu Ito

Kazunari Yawata

Noboru Yanagisawa

Torao Yajima

A printing apparatus includes a data receiver that receives command data from a host device and a memory that stores the command data received by the data receiver. A printer controller reads out the command data stored in the memory in a first-in-first-out order and controls the printing apparatus in accordance with the command data. A command detector is provided to detect predetermined command data within the command data received by the data receiver without storing the command data in the memory or while or before command data is stored in the memory. An off-line recovery controller enables the printing apparatus to recover from an off-line state in accordance with the predetermined command data detected by the command detector.

Printing apparatus and a control method therefor

A printing apparatus comprises a real-time command detector connected to the data receiver without the memory therebetween to detect control commands. Status data is transmitted to a host device in response to a real-time command from the host device.

Printing apparatus with real-time status reporting to a host device

This printing apparatus is provided having a regular status data generating circuit for regularly generating status data. An automatic status selection and transmission circuit selects the status condition to be transmitted by the automatic status transmission operation, and a status data comparator compares the status data. By executing the automatic status selection and transmission command, the status is thereafter transmitted each time the selected status changes.

A printing apparatus comprises a real-time command detector connected to the data receiver without the memory therebetween to detect control commands. An error recovery controller enables the printing apparatus to recover from an error state in accordance with predetermined command data detected by the command detector.

Printing apparatus with real-time error recovery

A printing apparatus comprises a real-time command detector that detects control commands without first storing the received comand data in memory. A host device can therefore cancel a cut-sheet waiting state of the printer even when the printing apparatus is stopped while waiting for a cut- sheet form to be inserted.

Printing apparatus with real-time cut-sheet waiting state cancellation

A printing apparatus comprises a real-time command interpreter that functions even when the printing apparatus is off-line, and interprets control commands simultaneously with receiving data. The printing apparatus can therefore output pulses to the external devices even when printing is in progress or the printer is off-line. Such printing apparatus comprises a command detector for directly detecting predetermined command data from the received command data. An external controller controls an external device in accordance with predetermined command data detected by the command detection.

Printing apparatus with a cash drawer control function, and a control method therefor

In order to offer a printer capable of high throughput printing even when the same printing or printing that is partially different is repeated, the printing apparatus of present invention equipped with a storage unit for storing print image data based on print data received from the host device in a designated position and a printing controller and printer engine that performs print processing on the recording medium based on the print image data stored in the storage unit in accordance with control data received from the host device. Specifically, this printing apparatus features an erasure unit for selectively deleting print image data that has undergone the print processing from the storage unit in accordance with control data received from the host device. Also, the printing controller is preferably configured such that it performs the print processing in accordance with first and second types of control data, such that the erasure unit performs erasure processing in accordance with the first control data and does not perform erasure processing in accordance with the second control data.

Printing apparatus including print image storage and control method therefor

Printer and control method for obtaining printer status

Printing apparatus including print image storage and control method

The printing apparatus of the invention provides a control command interpreter whereby control commands can be interpreted even in an off-line state. The cause of the off-line state can then be determined while in the off-line state, and the host computer can be notified of the cause. This achieves a high throughput rate printing. The user can cancel the cut-sheet paper insertion wait-state at any time, and determine why an error occurred to enable recovery from the error. This printing apparatus further provides high data reliability, reduces host computer overhead, and is easy to use.

Growing community of inventors

Suwa, Japan

Takuya Hyonaga