Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
  • B41J11/66—Applications of cutting devices
  • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
  • B41J15/16—Means for tensioning or winding the web

Definitions

• the present invention relates to a device for feeding a continuous strip printing substrate to a laser type printer and for cutting the strip in a determined format.
• a printer of this type is for example described in the document DE-A-4025177.
• the printer described in this document accepts continuous feeding a paper known as detachable picot therefore comprising lateral perforations on either side of the sheet and transverse perforations of determined length allowing in a later phase to cut the strip into classic page.
• This document teaches the detection of transverse perforations making it possible to determine the stopping point of the strip during each successive printing.
• the document DE-A-3313404 also describes a continuous supply of a laser type printer and relates more particularly to a device making it possible to obtain slack in the strip of substrate at the input of the printer. It therefore does not teach a solution for supplying a printer of the laser type not provided for this purpose by means of a printing substrate in continuous wound web, and debitage of the web in a determined format.
• Document US-A-4 478 143 discloses a special dot matrix printer making it possible to have the input and output of the paper on one and the same side, with a continuous feeding of the paper.
• the problem posed by a laser type printer is quite particular in that such a printer does not accept all substrate formats unlike a dot matrix printer.
• the object of the present invention is therefore to provide such a device making it possible to use a printer of the conventional laser type for printing on a substrate of determined size normally not accepted by the printer.
• the supply and debitage device comprises an input means and an output means disposed respectively at the input and at the output of the printer and each comprising a means of cutter and strip cutter and a means of measuring the length of said strip between two successive cuts.
• the measuring means consists of a guide on one face of which the strip naturally applies, this face having a determined length and / or a detection means, such as a photoelectric cell or a micro-switch, tape.
• the measuring means consists of a tone wheel driven in rotation by the strip or by a transcoder.
• the input means is arranged under the printer, a guide being provided for guiding the paper towards the input of the printer, while the output means is disposed above the printer, a tray receiving the cut substrate being provided downstream of the output means.
• FIG. 1 schematically shows in section the feed and debit device according to the present invention associated with a laser type printer not provided for this purpose;
• FIG. 1 schematically shows a preferred measurement means that can be implemented in the device of Figure 1.
• printer 10 has been shown not detailed since it is a conventional type printer as found on the market.
• the continuous strip 5 is formed in a roll 3 and first enters a guide 7 from which it enters an inlet means 12 at the outlet of which a guide 42 is provided for guiding the strip towards the inlet 22 of the printer 10.
• the strip At the outlet 24 of the printer 10, the strip first approaches a guide 8, then the outlet means 14.
• the means d input 12, like the output means 14, essentially comprise a cutter means 32, 34 and a means of measuring the length of the strip between two successive cuts.
• the two inlet and outlet means 12, 14 each further comprise, upstream of the cutter means, a means of stretching 36, 37 of the strip.
• This stretching means which also functions as a belt drive, comprises at least two drive rollers
• This stretching means allows the strip 5 to adopt a substantially planar shape before and after passing through the printer 10. This is particularly useful when the strip printing substrate is cardboard, which can be useful for the making business cards for example.
• the outlet means 14 further comprises a drive device 54 allowing the strip after cutting by the cutter means 34 to be driven towards the receiving tank 48 disposed downstream of the outlet means
• the measuring means consists of a guide 42 of the strip 5 on one face 44 of which the strip 5 is applied naturally, a means 46 of detecting the arrival of the strip is provided determined distance from the cutter means 32.
• This detection means 46 may favorably be a photocell electric or a micro-switch or any other equivalent means.
• the measuring means can alternatively be constituted as shown diagrammatically in FIG. 2 by a conventional tone wheel 60 driven by the strip of paper and for example disposed between the rollers 38 and 40 of the stretching means 36 of the strip.
• a tone wheel 60 is constituted by a wheel comprising teeth 62 varying the air gap of an electromagnetic coil 64.
• a conventional electronic device can count the number of teeth passing in front the reel 64 to determine the precise progress of the strip 5 and give the order to the cutter 32 to cut the strip 5.
• One or the other measuring means is also found in the output means 14.
• three detection means 50, 51, 52 are provided so as to allow cutting of the strip leaving the printer in different possible formats.
• the three detection means consist of photoelectric cells, a guide 56 being provided to encourage the passage of the strip 5 cut out in front of the photoelectric cell.
• a tone wheel 60 such as that shown in FIG. 2 and, for example, disposed between the rollers 39 and 41 of the stretching means 37.
• the device according to the invention makes it possible to use any laser type printer available on the market and in particular low-end type laser printers generally used in offices. Equipped according to the invention, the laser type printer can thus print documents in a completely special format compared to that authorized by the printer itself. Thus the device according to the invention finds one of its applications in the production of business cards or greeting cards or equivalent requiring a cardboard substrate and a very special format.
• band guides can be provided in a different way than those shown.
• a device for measuring the tension of the tape 5 upstream of the device can be provided and the device can also include an end of tape warning means 5.
• This measurement means can comprise a transcoder.

Landscapes

• Handling Of Sheets (AREA)
• Laser Beam Printer (AREA)
• Combination Of More Than One Step In Electrophotography (AREA)
• Handling Of Continuous Sheets Of Paper (AREA)
• Electronic Switches (AREA)
• Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
• Controlling Sheets Or Webs (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9425832

Family Applications (1)

Country Status (8)

Families Citing this family (6)

Family Cites Families (13)

• 1992
  • 1992-01-21 FR FR9200605A patent/FR2686289A1/fr active Granted
• 1993
  • 1993-01-20 DE DE69301306T patent/DE69301306T2/de not_active Expired - Fee Related
  • 1993-01-20 WO PCT/FR1993/000053 patent/WO1993013946A1/fr not_active Ceased
  • 1993-01-20 EP EP93904098A patent/EP0619783B1/de not_active Expired - Lifetime
  • 1993-01-20 ES ES93904098T patent/ES2086930T3/es not_active Expired - Lifetime
  • 1993-01-20 US US08/256,682 patent/US5560725A/en not_active Expired - Fee Related
  • 1993-01-20 AT AT93904098T patent/ATE132808T1/de not_active IP Right Cessation
• 1996
  • 1996-04-10 GR GR960401025T patent/GR3019628T3/el unknown

Non-Patent Citations (1)

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