Claims
- 1. An image recording apparatus comprising:
- a recording head for recording an image in a normal recording operation subject to interruption and subsequent resumption;
- temperature controlling means for detecting the temperature of said recording head and controlling the temperature within a predetermined range;
- memory means for storing a temperature of said recording head when a recording operation is interrupted; and
- resuming means for controlling said temperature controlling means using the temperature stored in said memory means so that the temperature of said recording head at resumption of the recording operation is substantially equal to the temperature of said recording head at interruption of the recording operation.
- 2. The image recording apparatus according to claim 1, wherein said recording head is a serial scan type.
- 3. The image recording apparatus according to claim 1, wherein said recording head is a full line type equipped with a plurality of recording elements along the full width of a recording area of a recording medium.
- 4. The image recording apparatus according to claim 1, wherein said recording head utilizes heat energy to discharge ink for recording an image and includes an electricity-heat converter for generating heat energy.
- 5. The image recording apparatus according to claim 1, wherein said apparatus is connected to a host computer and a recording operation is interrupted during transmission of image data form the host computer.
- 6. The image recording apparatus according to claim 1, wherein said temperature control means comprises a temperature sensor for detecting a temperature of said recording head, a heater for heating the recording head and a fan for cooling the recording head.
- 7. The image recording apparatus according to claim 6, wherein said temperature control means causes said heater to heat said recording head when the temperature detected by said sensor is lower than desired and causes said fan to cool said recording head when the detected temperature is higher than desired.
- 8. A method of recording an image using a recording head for performing a recording operation, the method comprising the steps of:
- temporarily interrupting a normal recording operation;
- detecting a temperature of said recording head when the recording operation is interrupted;
- controlling a temperature of said recording head in preparation of resumption of said recording operation so that temperature of the recording head on resumption of the recording operation will be substantially equal to the temperature detected in said detecting step; and
- thereafter transmitting an image signal to said recording head and resuming the recording operation.
- 9. The method of recording an image according to claim 8, wherein said controlling step has a wait step for controlling the temperature of said recording head in accordance with a predetermined time of a recording operation interruption.
- 10. The method of recording an image according to claim 8, wherein said recording head is a serial scan type.
- 11. The method of recording an image according to claim 8, wherein said recording head utilizes heat energy to discharge ink for recording an image and includes an electricity-heat converter for generating heat energy.
- 12. The method of recording an image according to claim 8, wherein in said interrupting step a recording operation is interrupted during transmission of image data from a host computer.
- 13. The method of recording an image recording to claim 8, wherein in said controlling step said recording head is heated by a heater when the temperature detected in said detecting step is lower than desired and said recording head is cooled by a fan when the detected temperature is higher than desired.
- 14. An image recording apparatus comprising:
- a recording head for recording an image in a normal recording operation subject to interruption and subsequent resumption;
- detecting means for detecting the temperature of said recording head;
- memory means for storing a temperature of said recording head when a recording operation is interrupted; and
- resuming means for controlling the temperature of said recording head using the temperature stored in said memory means so that the temperature of said recording head at resumption of the recording operation is close to the temperature of said recording head at interruption of the recording operation.
- 15. The image recording apparatus according to claim 14, further comprising temperature controlling means for controlling the temperature detected by said detecting means within a predetermined range, wherein said resuming means controls said temperature controlling means using the temperature stored in said memory means so that the temperature of said recording head at resumption of the recording operation is substantially equal to the temperature of said recording head at interruption of the recording operation.
- 16. The image recording apparatus according to claim 14, further comprising time counting means for counting an interruption time for the recording operation, wherein said resuming means controls application of a driving signal to said recording head using the temperature stored in said memory means and the interruption time counted by said time counting means so that the temperature of said recording head at resumption of the recording operation is substantially equal to the temperature of said recording head at interruption of the recording operation.
- 17. A method of recording an image using a recording head for performing a recording operation, the method comprising the steps of:
- temporarily interrupting a normal recording operation;
- detecting a temperature of said recording head when the recording operation is interrupted;
- controlling a temperature of said recording head in preparation of resumption of the recording operation so that the temperature of the recording head on resumption of the recording operation will be close to the temperature detected in said detecting step; and
- thereafter transmitting an image signal to said recording head and resuming the recording operation.
- 18. An image recording apparatus having a stand-by mode in which a recording operation is interrupted, the apparatus, comprising:
- a recording head for performing the recording operation by recording on a recording medium;
- head temperature detecting means for detecting the temperature of said recording head;
- memory means for storing temperature information detected by said head temperature detecting means when the apparatus is in the stand-by mode;
- stand-by time counting means for counting an interruption time during which the apparatus is the stand-by mode; and
- head driving controlling means for providing a driving signal to said recording head, the driving signal being adapted to the temperature stored in said memory means and the interruption time counted by said stand-by time counting means at resumption of the recording operation after termination of the stand-by mode.
- 19. A method of recording an image using a recording head for performing a recording operation utilizing heat energy, the method comprising the steps of:
- temporarily interrupting a normal recording operation performed by said recording head;
- detecting a temperature of said recording head when the recording operation is interrupted;
- measuring a time of the interruption of the recording operation;
- transmitting a driving signal to said recording head in preparation of resumption of the recording operation in accordance with a temperature detected in said detecting step and a time measured in said measuring step at resumption of the recording operation after interruption thereof so that the temperature of said recording head on resumption of the recording operation will be substantially equal to the temperature detected in said detection step; and
- thereafter transmitting an image signal to said recording head and resuming the recording operation.
Priority Claims (4)
Number |
Date |
Country |
Kind |
2-265064 |
Oct 1990 |
JPX |
|
2-322444 |
Nov 1990 |
JPX |
|
2-325999 |
Nov 1990 |
JPX |
|
2-329516 |
Nov 1990 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/112,232 filed Aug. 27, 1993, now abandoned, which in turn is a continuation of application Ser. No. 07/770,534 filed Oct. 3, 1991, now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0300634 |
Jan 1989 |
EPX |
Continuations (2)
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Number |
Date |
Country |
Parent |
112232 |
Aug 1993 |
|
Parent |
770534 |
Oct 1991 |
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