Printer and paper guide

Abstract

A printer includes: a placement section including a placement surface; a fixed guide that regulates a position of one end of a paper placed on the placement surface; and a moveable guide that slides in a first direction along the placement surface and regulates a position on the other end of the paper, wherein the placement section includes a plurality of recessed parts aligned in the first direction in a region where the moveable guide slides on the placement surface, the moveable guide includes a wall section; and a raised part that engages with one of the plurality of recessed parts, the raised part engages with the one recessed part more firmly when the raised part moves to the other side in the first direction.

What is claimed is: 
     
         1 . A printer comprising:
 a placement section comprising a placement surface where a media is placed;   a fixed guide that regulates a position of one end of the media; and   a movable guide that slides in a first direction along the placement surface and regulates a position on the other end of the media, wherein   the placement section includes a plurality of recessed parts aligned in the first direction in a region where the movable guide slides on the placement surface,   the movable guide comprises:
 a wall section that faces the fixed guide in the first direction and regulates the other end of the media; and 
 a raised part that engages with one of the plurality of recessed parts, and 
   the raised part engages with the one recessed part more firmly when the raised part moves to the other side in the first direction than when the raised part moves to one side in the first direction.   
     
     
         2 . The printer according to  claim 1 , wherein
 the movable guide comprises a lever that extends in a second direction,   the raised part crosses over the one recessed part when a force is applied to the lever to the one side in the first direction, and   the engagement of the raised part to the one recessed part is released when a force is applied to the lever to the other side in the first direction.   
     
     
         3 . The printer according to  claim 2 , wherein
 the raised part is formed on one side in the first direction,   the raised part releases the engagement with the one recessed part when the raised part is turned by a force applied to the lever to the other side in the first direction, and   the raised part turns by using an end part of the placement surface side of the lever as a fulcrum.   
     
     
         4 . The printer according to  claim 1 , wherein
 each of the plurality of recessed parts is a groove having a V shaped cross section that comprises a first surface on the one side in the first direction and a second surface on the other side in the first direction,   an angle formed between the first direction and the first surface is smaller than an angle formed between the first direction and the second surface,   the raised part is a rib having a V shaped cross section that comprises a third surface and a fourth surface, and   when the raised part is engaged with the one recessed part, the third surface contacts the first surface and the fourth surface contacts the second surface.   
     
     
         5 . The printer according to  claim 3 , wherein
 the raised part and the fulcrum on the movable guide are formed in different positions in a third direction intersecting the first direction, and   the plurality of recessed parts is formed on the placement surface except in a region where the fulcrum slides.   
     
     
         6 . The printer according to  claim 5 , wherein
 the movable guide further comprises:
 a catching section continuous to the lever and that extends to the one side in the first direction from the lever; and 
 a base section continuous to the lever and that extends at least in the first direction from a position that differs in the third direction from the catching section of the lever, wherein 
   the raised part is formed on the catching section on the one side in the first direction from the lever.   
     
     
         7 . The printer according to  claim 6 , wherein
 the lever
 is connected to the base section and the catching section, and 
 is elastically deformed in a direction approaching the base section and causes the catching section to turn according to an inclination of the lever when a force is applied to the other side in the first direction. 
   
     
     
         8 . The printer according to  claim 6 , wherein
 the lever comprises a protrusion that projects from the lever to the placement surface,   the fulcrum is the lever,   the catching section and the base section have a gap between the placement surface, and   the protrusion and the raised part supports the moveable guide on the placement surface.   
     
     
         9 . The printer according to  claim 6 , wherein
 the placement section comprises a slit that extends in the first direction,   the base section comprises a hook that passes through the slit, and   the hook
 slides in the first direction on the slit and prevents the base section from separating from the placement surface, and 
 is disposed closer to the one side in the first direction than to the fulcrum. 
   
     
     
         10 . The printer according to  claim 1 , wherein the raised part is disposed more to the other side in the first direction than the wall section. 
     
     
         11 . The printer according to  claim 2 , wherein
 each of the plurality of recessed parts is a groove having a V shaped cross section that comprises a first surface on the one side in the first direction and a second surface on the other side in the first direction,   an angle formed between the first direction and the first surface is smaller than an angle formed between the first direction and the second surface,   the raised part is a rib having a V shaped cross section that comprises a third surface and a fourth surface, and   when the raised part is engaged with the one recessed part, the third surface contacts the first surface and the fourth surface contacts the second surface.   
     
     
         12 . The printer according to  claim 3 , wherein
 each of the plurality of recessed parts is a groove having a V shaped cross section that comprises a first surface on the one side in the first direction and a second surface on the other side in the first direction,   an angle formed between the first direction and the first surface is smaller than an angle formed between the first direction and the second surface,   the raised part is a rib having a V shaped cross section that comprises a third surface and a fourth surface, and   when the raised part is engaged with the one recessed part, the third surface contacts the first surface and the fourth surface contacts the second surface.   
     
     
         13 . The printer according to  claim 12 , wherein
 the raised part and the fulcrum on the movable guide are formed in different positions in a third direction intersecting the first direction, and   the plurality of recessed parts is formed on the placement surface except in a region where the fulcrum slides.   
     
     
         14 . The printer according to  claim 7 , wherein
 the lever comprises a protrusion that projects from the lever to the placement surface,   the fulcrum is the lever,   the catching section and the base section have a gap between the placement surface, and   the protrusion and the raised part supports the moveable guide on the placement surface.   
     
     
         15 . The printer according to  claim 7 , wherein
 the placement section comprises a slit that extends in the first direction,   the base section comprises a hook that passes through the slit, and   the hook
 slides in the first direction on the slit and prevents the base section from separating from the placement surface, and 
   is disposed closer to the one side in the first direction than to the fulcrum.   
     
     
         16 . The printer according to  claim 8 , wherein
 the placement section comprises a slit that extends in the first direction,   the base section comprises a hook that passes through the slit, and   the hook
 slides in the first direction on the slit and prevents the base section from separating from the placement surface, and 
 is disposed closer to the one side in the first direction than to the fulcrum. 
   
     
     
         17 . A paper guide comprising:
 a placement section comprising a placement surface where a paper is placed;   a fixed guide that regulates a position of one end of the paper; and   a movable guide that slides in a first direction along the placement surface and regulates a position on the other end of the paper, wherein   the placement section includes a plurality of recessed parts aligned in the first direction in a region where the movable guide slides on the placement surface,   the movable guide comprises:
 a wall section that faces the fixed guide in the first direction and regulates the other end of the paper; and 
 a raised part that engages with one of the plurality of recessed parts, and 
   the raised part engages with the one recessed part more firmly when the raised part moves to the other side in the first direction than when the raised part moves to one side in the first direction.