Liquid jet recording apparatus having auxiliary recording head
AssigneeCanon Kabushiki Kaisha
InventorsToshiaki Hirosawa, Makoto Takamiya, Haruhiko Takahashi, Hidejiro Kadowaki, Ken Tsuchii, Masafumi Wataya
Life of this patent
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Abstract
A liquid jet recording apparatus comprises a line type recording head emitting toward a recording medium a recording liquid for recording and a serial type recording head movable in the arrangement direction of the line type recording head orifices. The serial type recording head compensates for any improperly recording orifices of the line type recording head.
Claims33
A recording apparatus for recording on a recording medium, said apparatus comprising:
- a main line type recording head for line type recording on a main recording area of the recording medium, said main recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- an auxiliary recording head, said auxiliary recording head being so positioned as to be capable of printing on a printed surface of the main recording area of the recording medium, said auxiliary recording head being distinct from said main recording head;
- a moving mechanism for moving said auxiliary recording head, wherein said auxiliary recording head conducts complementary printing on a portion of the recording medium not printed due to improper printing by said main recording head within a print line of the recording medium subjected to printing by said main recording head, so as to complete the line printing by said main recording head;
- and
- a drive unit comprising;
- a drive signal supplying circuit for supplying a drive signal causing said main recording head and said auxiliary recording head respectively to record on a recording medium, and
- control means for controlling said drive signal supplying circuit, wherein when said main recording head provides poor print quality, a drive signal is supplied to said auxiliary recording head to supplement the recording by said main recording head.
A recording apparatus according to claim 11, wherein said auxiliary recording head is an ink jet recording head using thermal energy to emit ink.
A drive unit for use in a recording apparatus having a main recording head for printing on a main recording area on a recording medium and at least one auxiliary recording head distinct from said main recording head, said drive unit comprising:
- a drive signal supplying circuit for supplying a drive signal causing said main recording head and said auxiliary recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said main recording head provides poor print quality, a drive signal is supplied to said auxiliary recording head to supplement the recording by said main recording head,
- wherein said auxiliary recording head is movable to a position over the main recording area, and wherein said main head and said auxiliary recording head are separately provided.
A recording method for recording on a recording medium using a main recording head having a plurality of orifices spanning a width of the recording medium to record in print lines and at least one auxiliary recording head separate from said main recording head, said method comprising the steps of:
- selecting a drive signal supplying circuit for supplying a drive signal causing said main recording head and said auxiliary recording head respectively to record on a said recording medium;
- selecting control means for controlling said drive signal supplying circuit, wherein when said main recording head ,provides poor print quality, a drive signal is supplied to said auxiliary recording head to supplement the recording by said main recording head;
- wherein said auxiliary recording head is movable to a position over the main recording area;
- detecting poor printing by said main recording head;
- and
- recording with the auxiliary recording head a portion of a recording medium not recorded due to poor recording by said main recording head according to the detection of poor printing to complete the recording to be performed by the main recording head.
A process for recording on a recording medium, comprising the steps of:
- selecting a main line type recording head for line type recording on a main recording area of the recording medium, said main recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- selecting an auxiliary recording head, said auxiliary recording head being so positioned as to be capable of printing on a printed surface of the main recording area of the recording medium;
- selecting a moving mechanism for moving said auxiliary recording head, wherein said auxiliary recording head conducts complementary printing on a portion of the recording medium not printed due to improper printing by said main recording head within a print line of the recording medium subjected to printing by said main recording head, so as to complete the line printing by the main recording head;
- and effecting recording using said recording apparatus.
A recording apparatus using a main recording head for printing in a recording area on a recording medium and at least one auxiliary recording head distinct from said main recording head comprising:
- a drive signal supplying circuit for supplying a drive signal causing said main recording head and said auxiliary recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said main recording head provides poor print quality, a drive signal is supplied to said auxiliary recording head to supplement the recording by said main recording head;
- wherein
- said auxiliary recording head is movable to a position over the recording area.
A recording apparatus using the first recording head for printing on a recording area on a recording medium and at least one second recording head distinct from said first recording head comprising:
- a drive signal supplying circuit for supplying a drive signal causing said first recording head and said second recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said first recording head provides poor print quality, a drive signal is supplied to said second recording head to supplement the recording by said first recording head;
- wherein
- said second recording head is relatively movable to a position over the recording area.
A recording apparatus for recording on a recording medium, said apparatus comprising:
- a main line type recording head for line type recording on a main recording area of the recording medium, said main recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- an auxiliary recording head, said auxiliary recording head being so positioned as to be capable of printing on a printed surface of the main recording area of the recording medium;
- and
- a moving mechanism for moving said auxiliary recording head, wherein said auxiliary recording head conducts complementary printing on a portion of the recording medium not printed due to improper printing by said main recording head within a print line of the recording medium subjected to printing by said main recording head so as to complete the line printing by the main recording head;
- and
- an original image reading means.
A image forming apparatus said apparatus comprising:
- a main line type recording head for line type recording on a main recording area of the recording medium, said main recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- an auxiliary recording head, said auxiliary recording head being so positioned as to be capable of printing on a printed surface of the main recording area of the recording medium;
- and
- a moving mechanism for moving said auxiliary recording head, wherein said auxiliary recording head conducts complementary printing on a portion of the recording medium not printed due to improper printing by said main recording head within a print line of the recording medium subjected to printing by said main recording head so as to complete the line printing by the main recording head;
- and
- a means for transmitting and receiving an image information.
An image forming apparatus using a first recording head for printing on a recording area on a recording medium and at least one second recording head distinct from said first recording head comprising:
- a drive signal supplying circuit for supplying a drive signal causing said first recording head and said second recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said first recording head provides poor print quality, a drive signal is supplied to said second recording head to supplement the recording by said first recording head;
- and
- an original reading means;
- wherein
- said second recording head is relatively movable to a position over the recording area.
An image forming apparatus using a first recording head for printing on a recording area on a recording medium and at least one second recording head distinct from said first recording head comprising:
- a drive signal supplying circuit for supplying a drive signal causing said first recording head and said second recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said first recording head provides poor print quality, a drive signal is supplied to said second recording head to supplement the recording by said first recording head;
- and
- a transmitting means;
- wherein
- said second recording head is relatively movable to a position over the recording area.
A image processing apparatus comprising:
- a main line type recording head for line type recording on a main recording area of the recording medium, said main recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- an auxiliary recording head, said auxiliary recording head being so positioned as to be capable of printing on a printed surface of the main recording area of the recording medium;
- and
- a moving mechanism for moving said auxiliary recording head, wherein said auxiliary recording head conducts complementary printing on a portion of the recording medium not printed due to improper printing by said main recording head within a print line of the recording medium subjected to printing by said main recording head so as to complete the line printing by the main recording head;
- and
- a computer.
An image processing apparatus comprising a recording apparatus using the first recording head for printing on a recording area on a recording medium and at least one second recording head distinct from said first recording head said recording apparatus comprising:
- a drive signal supplying circuit for supplying a drive signal causing said first recording head and said second recording head respectively to record on a recording medium;
- and
- control means for controlling said drive signal supplying circuit, wherein when said first recording head provides poor print quality, a drive signal is supplied to said second recording head to supplement the recording by said first recording head;
- wherein
- said second recording head is relatively movable to a position over the recording area;
- wherein said information processing apparatus further comprises a computer.
A recording head, comprising:
- a main line type recording head for line type recording on a main recording area of a recording medium, said line type recording head having a plurality of orifices spanning the width of the recording medium to record in print lines;
- an auxiliary recording head, said auxiliary recording head positioned so as to be capable of printing on a printed surface of the main recording area of the recording medium, and
- wherein said auxiliary recording head is movable to a position over said main recording head.
Dependencies are inferred from the claim text.