US Patent No: 7,121,639
Number of patents in Portfolio can not be more than 2000
Data rate equalisation to account for relatively different printhead widths
Stats
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Oct 17, 2006
Issued date -
Dec 2, 2003
filing date -
10/727,204
serial no -
In Force
status
Importance
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Abstract
A printer controller configured to generate dot data for supply to a printhead that includes at least first and second longitudinally extending printhead chips that are positioned adjacent each other either side of a join region such that a printing width of the printhead is wider than the length of either printhead chip, the printer controller being configured such that, in the event that the printhead chips to which dot data is being supplied are of sufficiently unequal relative length, the dot data is supplied more frequently, or at a higher rate, to the longer of the two printhead chips.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,907,666 Recording system for transferring offset data to be recorded | 16 | 1995 | |
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| 6,354,689 Method of compensating for malperforming nozzles in a multitone inkjet printer | 69 | 1998 | |
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| 6,467,870 Recording head | 34 | 2001 | |
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| 6,874,863 Liquid ejection head | 4 | 2003 | |
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| 6,559,969 Printhead controller and a method of controlling a printhead | 17 | 2000 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Apr 17, 2014 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 17, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |