JPH02279362A - Printer - Google Patents

Abstract

PURPOSE:To prevent a sound from generating due to vibration of a sheet by a simple method by integrating a part of performing a role of writing base with a platen. CONSTITUTION:A printing sheet 6 is supplied from a printing sheet supply unit 4, printed by a printing head 1 via an ink ribbon 7, and fed by a driving force of a sheet feed roller 2. The fed sheet 6 is wound on a winding shaft 8 without floating from a writing base 5a integrated with a platen 5 (the base 5a is not floated even if the sheet 6 on the winding shaft 8 becomes a maximum profile). In this case, the winding amount of the sheet 6 on the shaft 8 is set to more amount than the sheet feeding distance even in any case, the difference is formed in a mechanism for sliding at a winding side, and the sheet 6 is not floated to the head 1 at the platen 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a printer having a writing stand for adding characters by hand or the like to printed paper.

It was designed to be installed in a position that was recessed from the tens surface.

[Problem N that the invention seeks to solve] However, because the writing table and platen are separate structures, there is a level difference between the two parts, and the printing paper becomes free at that part, causing the printing paper to become loose during printing. It was vibrating and making a loud noise.

[Means for Solving the Problems] The printer of the present invention includes a printing means for printing on printing paper;
It is characterized by comprising a paper feeding means that serves to feed the printed paper, a platen that has a portion that serves as a writing table, and a winding shaft that winds up the printed paper.

[Prior Art] Conventionally, a writing stand has been fixed in a retracted position with respect to the path of the printing paper after the gap between the platen and the print head has been adjusted, or when fixed, the writing stand has always been configured as described above. In conventional printers, the printing paper is attached to the platen, so the paper does not vibrate when printing, which prevents the paper from making noise.

[Embodiments] Examples of the printer according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the printer of the present invention. 1 is a print head that prints dots to form characters from which wires pop out in response to electrical signals, and 2 is a printing paper supply device that is larger than the print head 1! ! A paper feed roller located at 4 bias is used to feed the paper while being assisted by the pressing force of the paper press roller 3. 5 is a paper feed roller that integrates a writing table part 5a, and the writing table part 5a guides the printed paper 6 to the winding shaft 8. A platen 7 serves to receive the wire of the print head 1, and 7 is a print paper 6.
This is an ink ribbon located between the print head 1 and the print head 1.
(However, if the printing paper 6 is pressure-sensitive paper, the ink ribbon 7 may not be used.) Next, the operation of the printer of the present invention will be explained. The printing paper 6 is supplied from the printing paper supply device 4 , and after being printed by the print head 1 via the ink ribbon 7 , the paper is fed by the driving force of the paper feed roller 2 . The fed printed paper 6 does not float off the writing platform 5a integrated with the platen 5 (even when the printed paper 6 on the winding shaft 8 reaches its maximum external size, it does not float off the writing platform 5a). It is wound up on the winding shaft 8. At this time, the amount of printed paper 60 taken up on the take-up shaft 8 is set so that it is taken up in any case more than the paper feed amount, and the difference is made by a mechanism that slides on the take-up side, and the platen 5 In this case, the printing paper 6 never floats to the print head 1 side.

In the above-described embodiment, the vibration that the wire protruding from the print head 1 gives to the print paper 6 during printing is
This eliminates the need to vibrate and generate loud noise.

[Effects of the Invention] As explained above, the printer of the present invention has the effect of eliminating the generation of sound due to paper vibration by the simple method of integrating the part that serves as a writing table and the platen.

Further, the present invention has the advantage that it is possible to achieve low cost by integrating parts, and also to avoid paper jams caused by the leading edge of the paper getting caught in the step between the platen and the writing table when paper is inserted.

[Brief explanation of drawings]

FIG. 1 is a side view of the printer of the present invention. 1...Print head 2...Paper feed roller 3...Paper presser roller 4... Print paper supply device 5...Platen 5a...Writing table part 6...Print paper 7... Ink ribbon 8... Winding shaft that's all Applicant: Seiko Epson Corporation Agent: Patent attorney Kizobe Suzuki and 1 other person

Claims (1)

[Claims] It is characterized by comprising a printing means for printing on printed paper, a paper feeding means for feeding the printed paper, a platen having a portion serving as a writing table, and a winding shaft for winding up the printed paper. printer.