Printing Apparatus Serial Line Head Dual Path
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing printing apparatuses face challenges in printing wide statement sheets without enlarging the apparatus body and in efficiently discharging statement sheets without waiting for the completion of passbook printing, due to limitations in dot head movement speeds and resolution.
Innovation Solution
A printing apparatus is designed with a serial head that moves along a head movement path with speed-up, constant, and slow-down areas, and a line head that prints on a roll sheet, allowing for wider prints and simultaneous printing of passbooks and statement sheets, with the line head's discharge path connected to the serial head's path to enable early discharge of statement sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the constant speed area (printing area) of the dot head is made close to the whole width of the apparatus body, then the wide statement sheet can be printed, but the apparatus body must be enlarged by the speed-up area and the slow-down area at both sides of the printing area
Solution Approach 1:
The patent divides the printing system into two independent parts: a dot head for passbook printing and a line head for statement sheet printing. Each head has its own conveyance path, allowing the line head to print wide statement sheets without requiring the dot head's constant speed area to extend to the full apparatus width, thus avoiding apparatus body enlargement.
Solution Approach 2:
The patent introduces a new dimension by adding a line head that operates in parallel with the dot head. The line head's conveyance path is positioned such that its discharge connects to the dot head's conveyance path, creating a multi-dimensional printing and discharge system that enables wide statement sheet printing without expanding the apparatus body footprint.
2Adaptability or versatility
If both the statement sheet and the passbook are printed by the dot head having a low resolution, then the printing can be performed with a single head type, but the print of the statement sheet is soiled
Solution Approach 1:
The patent segments the printing function into two specialized heads: a dot head for passbook printing and a line head for statement sheet printing. This segmentation allows each head to be optimized for its specific function, with the line head providing high-resolution printing for statement sheets while the dot head handles passbook printing.
Solution Approach 2:
The patent applies local quality by assigning different printing qualities to different parts of the system. The line head provides high-resolution printing specifically for statement sheets where quality is critical, while the dot head maintains its original characteristics for passbook printing, thus optimizing print quality where needed without compromising overall system versatility.
3Device complexity
If a sheet conveyance path is connected to the upstream side of the passbook conveyance path to form one line conveyance system, then the statement sheet can be discharged through the passbook conveyance path, but the discharge of the statement sheet is delayed until the printing of the passbook is completed
Solution Approach 1:
The patent segments the conveyance system into two independent paths: a statement sheet conveyance path and a passbook conveyance path. The statement sheet path is connected to the dot head's discharge side, allowing statement sheets to be discharged independently of passbook printing operations, thereby eliminating discharge delays.
Solution Approach 2:
The patent implements preliminary action by positioning the line head and its discharge connection before the dot head in the conveyance flow. This allows statement sheets to be printed and discharged through the line head's discharge path that connects to the dot head's discharge side, enabling statement sheet discharge to occur independently and preliminarily before passbook printing completes.
Data Source
AI summary
In a printing apparatus, a dot head moves along a movement path which is orthogonal to a conveyance direction of a passbook, one end side of the head movement path is a speed-up area, a halfway part is a constant speed printing area, and the other end side is a slow-down area. A thermal head is disposed in a direction orthogonal to a conveyance direction of a thermal sheet, and a width size in the orthogonal direction is not smaller than the printing area of the dot head.