Ink sheet/recording paper cassette

• US 4,914,452 A
• Filed: 05/06/1988
• Issued: 04/03/1990
• Est. Priority Date: 05/08/1987
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Fukawa, Kazumi
• Primary Examiner(s): Walberg, Teresa J.
• Assistant Examiner(s): Tran, Huan
• Application Number:
  US07/191,059
• Time in Patent Office: 697 Days
• Field of Search: 346/76 PH, 400/120 PH, 400/207
• US Class Current: 347/214
• CPC Class Codes: B41J 17/32 Detachable carriers or holders for impression-transfer material mechanism

Abstract

An ink sheet/recording paper cassette for use in a thermal printer includes a case in which a roll of an ink sheet and a roll of recording paper are contained. A take-up spool is also provided in the case and the leading end of the ink sheet is fixedly attached to the take-up spool so that the ink sheet when supplied from the roll is used for recording information on the recording paper supplied from the roll and then wound around the take-up spool. The provision of a roll of an ink sheet and a roll of recording paper in the same cassette case significantly eases handling of expandable supplies of a thermal printer.

Claims

1. An ink sheet cassette comprising:

a case;

a first roll of an ink sheet contained in said case, said ink sheet having thereon a thermally transferrable ink layer;

a second roll of recording paper contained in said case; and

a take-up spool rotatably supported in said case for winding said ink sheet supplied from said first roll after having been used for recording information on said recording paper supplied from said second roll.

2. The cassette of claim 1, further comprising first supporting means for supporting said first roll rotatably, said first supporting means including a tension applying means for applying a tension to said ink sheet when pulled by said take-up spool to be wound therearound.

3. The cassette of claim 1, wherein said case is formed with a pair of opposite openings through which a recording unit may partly move into said cassette to hold said ink sheet and said recording paper at a predetermined recording position.

4. The cassette of claim 3, wherein said base is formed with a detection opening through which a detector for detecting the end of said ink sheet may detect an end mark provided on said ink sheet.

5. The cassette of claim 1, wherein said take-up spool is provided with a first engaging means for engaging with a second engaging means provided in a recoding apparatus in which said cassette may be detachably mounted, whereby a driving force is transmitted to said take-up spool through an engagement between said first and second engaging means when said cassette is set in position in said recording apparatus.

6. The cassette of claim 5, wherein said first engaging means includes a gear fixedly attached to said take-up spool and located outside of said case.

7. An ink sheet cassette comprising:

a case,

a first roll of an ink sheet contained in said case, said ink sheet having a thermally transferrable ink layer,

a second roll or recording paper contained in said case;

taking up means mounted in said case for taking up said ink sheet after said ink sheet has been supplied from said first roll and used for recording on said recording paper supplied from said second roll at a recording position where said ink sheet is brought into contact with said recording paper which is transported along a predetermined transportation path; and

separating means mounted in said case for positively separating said ink sheet from said recording paper after said ink sheet and said recording paper have moved past said recording position.

8. The cassette of claim 7 wherein said taking up means includes a take-up spool which is rotatably mounted in said case with a leading end of said ink sheet fixedly attached to said take-up spool.

9. The cassette of claim 7 wherein said separating means includes a guide roller mounted in said case.

10. The cassette of claim 9 wherein said guide roller is rotatably mounted in said case.

11. An ink sheet cassette comprising:

a case;

a first roll of an ink sheet contained in said case, said ink sheet having thereon a thermally transferrable ink layer;

a second roll of recording paper contained in said case;

taking up means mounted in said case for taking up said ink sheet supplied from said first roll after having been used for recording information on said recording paper supplied from said second roll; and

holding means formed on said case for temporarily holding a leading portion of said recoding paper.

12. The cassette of claim 11 wherein said holding means includes a first positioning means for positioning said leading portion of said recording paper in a lengthwise direction of said recording paper and a second positioning means for positioning said leading portion of said recording paper in a transverse direction of said recording paper when said leading portion of said recording paper is held by said holding means.

13. The cassette of claim 12 wherein said first positioning means includes a stopper end wall formed in said case extending in a widthwise direction of said recording paper and said second positioning means includes at least one stopper side wall formed in said case to be engageable with a side of said leading portion of said recording paper when held by said holding means

14. A recording apparatus for use with an ink sheet cassette, wherein said ink sheet cassette comprising:

a case;

a first roll of an ink sheet contained in said case, said ink sheet having thereon a thermally transferrable ink layer;

a second roll of recording paper contained in said case; and

a take-up spool rotatably mounted in said case for taking up said ink sheet supplied from said first roll after having been used for recording information on said recording paper supplied from said second roll; and

said recording apparatus comprising;

holding means for detachably holding said ink sheet cassette in position;

a thermal print head engageable with said ink sheet when said ink sheet cassette is set in position;

a platen roller pressed against said thermal print head with said ink sheet and said recording paper sandwiched therebetween;

driving means for driving to rotate said platen roller;

first power transmitting means for transmitting only a normal rotation of said platen roller to said take-up spool; and

second power transmitting means for transmitting only a reversed rotation of said platen roller to said take-up spool.

15. The apparatus of claim 14 wherein each of said first and second power transmitting means includes a one-way clutch mechanism.