EP0937282A1 - Drucker mit zwei druckwerken und durch schrittmotore angetriebene transportwalzenpaare - Google Patents
Drucker mit zwei druckwerken und durch schrittmotore angetriebene transportwalzenpaareInfo
- Publication number
- EP0937282A1 EP0937282A1 EP97945774A EP97945774A EP0937282A1 EP 0937282 A1 EP0937282 A1 EP 0937282A1 EP 97945774 A EP97945774 A EP 97945774A EP 97945774 A EP97945774 A EP 97945774A EP 0937282 A1 EP0937282 A1 EP 0937282A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transfer printing
- transport
- path
- sheet
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/58—Article switches or diverters
- B65H29/60—Article switches or diverters diverting the stream into alternative paths
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
- G03G15/0194—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to the final recording medium
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
- G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/40—Identification
- B65H2511/414—Identification of mode of operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/40—Movement
- B65H2513/41—Direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/20—Actuating means angular
- B65H2555/26—Stepper motors
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
- G03G2215/00586—Control of copy medium feeding duplex mode
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
- G03G2215/00599—Timing, synchronisation
Definitions
- the invention relates to a device, in particular a printer or copier, having a first electrographic printing unit which prints an image pattern on a sheet-like material, an input section via which the sheet-like material can be fed one after the other, and an output section via which the printed sheet-like material is issued one by one.
- a printer is known from US Pat. No. 5,208,640 which has two printing units of the same type, to which sheets to be printed can be fed individually one after the other via a common input section.
- pairs of transport rollers are arranged in the transport path of the paper. Different pairs of transport rollers are driven together by a single or a few central drives via synchronous belts.
- an essentially similar second printing unit is provided in the device, to which sheet material can be fed via the common input section, that the sheet material printed by the second printing unit is output via the common output section, that in the transport path for the sheet material from the input section to the output section, drive roller pairs are arranged which are at a distance from each other slightly smaller than the dimension of the material in the conveying direction, that the transport roller pairs have predetermined rotational speeds and conveying directions depending on the operating mode of the device, such that drives which are reversible in their direction of rotation Stepper motors are provided and that predetermined driven transport rollers are combined into groups and are directly coupled to one another and are each driven by a single drive. Scanners on Several transport rollers are arranged, enable precise control of the paper transport.
- the device according to the invention two essentially identical printing units are used.
- the components for these printing units e.g. the electronic control, the developer units, the toner supply and discharge devices etc. can be kept almost unchanged.
- Each printing unit on its own therefore has a very high level of operational reliability.
- Both printing units use a common input section through which the sheet material is fed.
- both printing units jointly use an output section for discharging the printed sheet material.
- the new device is very compact and can be manufactured with little effort. Due to the two printing units, the printing performance is significantly increased.
- reversible stepper motors are provided as drives in their direction of rotation. These stepper motors can be set to the desired speed by means of a predefined clock frequency, a high degree of synchronism with other similar drives being ensured when starting up and braking the drive.
- Different driven transport rollers are grouped together, which are driven by a single stepper motor. The formation of groups leads to the fact that the construction effort is reduced, whereby the flexibility for setting certain speed profiles is still given. Due to the use and arrangement of these drives, switching clutches and gearboxes are not required, which increases the operational reliability and the hardware expenditure remains low.
- the division into groups, on the one hand, and into individual drives within the device, on the other hand, means that a large number of paper runs can be implemented in order to be able to carry out print jobs with the remaining other printing unit if one printing unit fails.
- single sheets on different transport sections in the printer can have different speeds, some of which are a multiple of the transfer speed. This makes it possible to transport the individual sheet after and before the transfer printing at a higher speed than the transfer printing speed. In this way, the total throughput in the printer can be increased and longer dwell times on a route section, for example due to the passage through a switch or a turning device, can be compensated for by high conveying speeds. Due to the high speed outside the printing units, it can also be ensured that the prescribed distances between the individual sheets output are observed and that, despite any different paths of the individual sheets in the printer, the correct output sequence is observed.
- a scanning device is arranged on several pairs of transport rollers, preferably on each pair of transport rollers, which signals the passing of a leading edge or a trailing edge of the sheet material.
- This scanning device preferably contains two light barriers, one of which is arranged in front of the pair of transport rollers and the other behind the pair of transport rollers.
- the signals from the scanning device can be used to determine at any time where a single sheet is located.
- traffic jams can be detected in the device.
- the respective pair of transport rollers is accelerated or decelerated.
- a first transfer printing transport path is provided for the first printing unit and a separate second transfer printing transport path for the second printing unit.
- the transfer printing for both printing units takes place at the same speed. Since each printing unit has its own transfer printing transport path, sheet-like material can still be printed with the other printing unit if one printing unit fails.
- first transfer printing transport path and the second transfer printing transport path are connected by a connecting channel, through which sheet material can be conveyed in one or in both transport directions.
- a connecting channel through which sheet material can be conveyed in one or in both transport directions.
- a further embodiment provides that the sheet-like material is turned during transport from the first transfer printing path to the second transfer printing path.
- each printing unit can print on the front and also on the back of a single sheet. If developer stations with different colors are used for the two printing units, two image patterns with two different colors can be printed on each side of the single sheet, i.e. a so-called two-color duplex operation, also called duplex color spot operation, can be implemented.
- FIG. 1 schematically shows the structure of a high-performance printer in which the invention is implemented
- FIG. 2 shows schematically the operating mode simplex printing with the lower printing unit
- FIG. 3 schematically, the operating mode simplex printing with the upper printing unit
- FIG. 4 the operating mode alternating simplex printing
- FIG. 5 the duplex printing mode
- FIG. 6 the operating mode two-color simplex printing
- FIG. 7 schematically the operating mode two-color duplex printing
- FIG. 8 schematically shows the distribution of the pairs of transport rollers in the printer along the transport path of the single sheets
- Figures 9 to 12 show the paper run in the printer for various reasons
- FIG. 1 shows a high-performance printer 10 which is used for the rapid printing of single sheets of paper.
- the high-performance printer 10 contains a first, lower printing unit D1 and a second, upper printing unit D2. Both printing units D1, D2 work according to the known electrographic process with the same transfer printing speed.
- the printing units D1, D2 are followed by fixing devices, which are indicated schematically in FIG. 1 by two pairs of rollers 12, 14.
- a paper input 16, which has a plurality of storage containers 18, is connected to the high-performance printer 10 up to 24 with single sheets and an external paper input channel 26, via which single sheets can be fed from the outside. Single sheets are fed to an input section 28 via a transport channel.
- the high-performance printer 10 delivers the printed single sheets via the output section 42.
- Transport paths for the transport of the single sheets are arranged in the interior of the high-performance printer 10, through which different operating modes of the high-performance printer are realized.
- the printing units D1, D2 are each assigned transfer printing transport paths 44, 46, which are each set by drives so that the single sheets fed to the printing units D1, D2 have their transfer printing speed. Both transfer printing transport paths 44, 46 are connected to one another via a connecting channel 48.
- the transport path around the first printing unit D1 is supplemented to form a ring by a feed channel 50, via which individual sheets can also be fed from the input section 28 to the second transfer printing transport path 46.
- the transport path for the second printing unit D2 is supplemented in a similar manner to form a ring by a discharge channel 52, via which single sheets printed by the printing unit D1 can be fed to the output section 42.
- a first switch W1 is arranged between the receiving section 28, the first transfer printing path 44 and the feed channel 50, which enables single sheets to be fed from the input section 28 either to the first transfer printing path 44 or to the feed channel 50.
- Another variant is that single sheets transported 50 m in the direction of the switch W1 can be fed to the first transfer printing path 44 on the feed channel.
- a second switch W2 and a third switch W3 are arranged at the ends of the connecting channel 48 and connect the adjacent transport paths 44, 48, 52 and 46, 48, 50, respectively.
- a fourth switch W4 is located in the vicinity of the output section 42 and connects the adjacent transport routes.
- the paper output 30 contains a fifth switch W5, which works as a turning device. Furthermore, it should also be pointed out to a control device 54 to which reject single sheets are fed via a switch W6.
- FIG. 1 Different operating modes of the high-performance printer 10 can be realized by the arrangement described in FIG.
- the various operating modes are shown schematically in the following FIGS. 2 to 7.
- the respective conveyance of the single sheets is illustrated using arrows.
- the simplex printing is shown schematically with only one printing unit. With this simplex printing only one side of a single sheet is printed.
- the single sheet reaches the first transfer printing path 44 via the input section 28 and the appropriately switched switch W1 along the arrow P1 and is printed on the printing unit Dl.
- the single sheet is then output along the discharge channel 52 (arrow P2) via the output section 42 into the paper output 30 (arrow P3).
- FIG 3 shows the simplex printing with the upper, second printing unit D2.
- the single sheet is transported via the feed channel 50 (arrow P4), the second transfer printing path (arrow P5) to the paper output 30 (arrow P6).
- FIG. 4 shows schematically the transport of the single sheets.
- the switch Wl alternately leads the feed nal 50 or the first transfer printing path 44 single sheets (arrows P7, P8).
- the individual sheets are slowed down to the transfer speed on their transport to the printing units D1, D2, printed there on the front side and then conveyed further to the switch W4.
- the single sheets are accelerated to at least twice the transfer printing speed, so that they are output at a distance from one another at the common output section via the switch W4 and are transported in the paper output 30 one after the other with at least twice the transfer printing speed according to the arrow P1 can.
- the single sheets to the input section 28 are fed to the printing units D1, D2 with at least twice the transfer printing speed.
- the single sheets are also conveyed and deposited at at least twice the speed.
- the transport paths for the single sheets fed to the first printing unit D1 and the single sheets fed to the second printing unit D2 are preferably designed symmetrically or at least the same length, so that the single sheets can be braked and accelerated on both transport paths with the same speed profile. This makes it possible to construct the drives and devices required for transport in the same way. It is also possible to use similar controls.
- FIG. 5 shows schematically the duplex printing mode, in which the single sheets are printed on both sides.
- the single sheets fed to the input section 28 are fed to the first transfer printing path 44 through the first switch W1 (Arrow P13).
- the respective single sheet is conveyed a turning distance according to the arrow P14 beyond the switch W2.
- This turning path is part of the discharge channel 52.
- the conveying direction is then reversed according to arrow P15, and the switch W2 then guides the single sheet according to the arrow P16 into the connecting channel 48.
- the single sheet is then moved from the switch W3 in the direction of the arrow P17 diverted to the second transfer printing transport path 46.
- the printing unit D2 is therefore fed the back side of the single sheet which has not yet been printed for printing.
- the individual sheets are then fed to the switch W4 in accordance with the arrow P18 and transported to the paper output 30 along the arrow P19.
- the W5 switch serves this purpose.
- the single sheet is first of all by the
- the switch W2 works as a turning device in order to feed the back of the single sheet to the printing unit D2.
- the turnout W3 can also be used.
- the single sheet leaving the printing unit D1 is then guided over the switch W2, the connecting channel 48 of the switch W3 and then for a short turning distance along the feed channel 50 in the direction of the switch Wl.
- the transport direction is then reversed and the switch W3 guides the single sheet in the direction of the printing unit D2 with its back upwards.
- FIG. 6 schematically shows a further operating mode, two-color simplex printing, in which the front of a single sheet is printed with two image patterns of different colors.
- the two printing units D1, D2 print image patterns different color.
- the single sheet is fed to the printing unit Dl via the switch Wl (arrow P25).
- the single sheet is then fed via the switch W2 to the connecting channel 48 without turning and then via the switch W3 to the printing unit D2 (arrows P26, P27).
- the printing unit D2 prints the front side with a color different from the color of the printing unit Dl.
- the single sheet is then output to the paper output 30 via the switch W4 (arrow P28).
- FIG. 7 schematically shows the transport path of a single sheet in the two-color duplex printing mode, in which the front and the back of a single sheet are printed with image patterns of different colors.
- the prerequisite for this is that the printing units D1 and D2 print different-colored print images.
- the two-color printing of the front is carried out as in the two-color simplex printing mode according to FIG. 6.
- the arrows P25, P26, P27 and P28 illustrate the transport route.
- the single sheet is then fed again to the printing unit Dl.
- the arrows P29 to P36 illustrate the transport path of the single sheet for printing on the back. So that this back is fed to the printing unit Dl, the single sheet must be turned on the transport path between the printing unit D2 and the printing unit Dl.
- This turning can take place, for example, on the switch W4, the switch W2 or the switch W3.
- the turning is carried out using the switch W4, ie the single sheet is first transported for a short turning distance in the direction of the switch W5, then the transport direction is reversed and the single sheet is conveyed further in the direction of the switch W2.
- the turnout W5 is turned again and then the single sheet, which is printed on both sides with two color images, is deposited on the right side.
- An alternative transport of the single sheet through the high-performance printer 10 to implement the two-color duplex printing mode can be carried out in the following manner.
- the single sheet is fed from the input section 28 via the switch W1 to the printing unit Dl, printed on its front side and then briefly directed via the switches W2 and W3 for turning in the direction of the switch Wl.
- the transport direction is changed in the direction of the printing unit D2 and the single sheet is conveyed on the transfer printing transport path 46.
- the switch W3 thus serves as a turning station.
- the back of the single sheet is accordingly printed on the printing unit D2.
- the single sheet is then fed again to the first printing unit D1 via switches W4, W2, W3 and Wl in order to now print on the back.
- the single sheet must be turned over for this.
- switch W4 which is briefly conveyed in the direction of switch W5, the transport direction is reversed and transported in the direction of switch W2 in the turned state.
- the single sheet is fed to the printing unit D2 via the switches W2 and W3, whereby it is turned. Now the front is printed by the printing unit D2.
- the single sheet is then fed over the switch W4 to the storage compartments 32 to 36. Since it now arrives in the correct position, that is to say with the top side upward in the deposit 30, it does not have to be turned again through the switch W5.
- FIG. 8 schematically shows the possible transport routes of a single sheet in the high-performance printer 10.
- the various transport sections 44, 46, 48, 50, 52 contain pairs of transport rollers T31 to T65 as shown.
- the elements T40 and T60 which relate to the printing units D1 and D2, and the elements T43 and T63, which relate to the fixing roller pairs of the fixing stations downstream of the printing units Dl, D2, are to be excluded.
- the pairs of transport rollers T30 and T48 with associated stepper motors M30 and M48 are to be mentioned, which correspond to the turnouts W1 and W4 belong.
- At least one light barrier L is assigned to each pair of transport rollers T31 to T65. For reasons of overview m in FIG.
- each light barrier is only shown for the pairs of transport rollers T31 to T44 of the first transfer printing path 44.
- the light barriers L serve to detect the passing of the leading edge or the trailing edge of the single sheet, so that the control knows at any time the location of the single sheet on the different transport routes and the respective pair of transport rollers T30 to T65 according to the set operating mode accelerated or decelerated.
- the various pairs of transport rollers T30 to T65 are spaced slightly apart from each other than the dimensions of the single sheet in the direction of travel. In the case of a DIN A4 single sheet with a dimension in the direction of 210 mm, an appropriate distance of the transport roller pairs T31 to T65 of about 200 mm must be maintained.
- Reversible stepper motors M30 to M65 are provided as drives for the driven roller of the transport roller pairs T30 to T65, the assignment of which to the different transport roller pairs can be seen in FIG.
- Certain pairs of transport rollers are grouped together and are each driven by a single stepper motor.
- the pairs of transport rollers T51, T52, T53, T54 are combined to form a group which is driven by a single stepping motor M51.
- the respective driven rollers of the pairs of transport rollers T51 to 54 are coupled to one another by toothed belts, which ensures perfect synchronous operation.
- the pairs of transport rollers T31 and T32 are combined to form a group and are driven by the stepping motor M31.
- the transport roller pairs T49 and T50 are combined to form a group which is driven by the single stepping motor M49.
- each Transport roller pair T55, T56, T64, T65 driven by a separate stepper motor M55, M56, M64, M65.
- the discharge channel 52 contains the pairs of transport rollers T45, T46 and T47, which are combined into a group and are driven together by the single stepper motor M45.
- Transport roller speeds Pair V Q and at times the listed speeds
- FIGS. 9 to 12 schematically show the throughput of single sheets in the implementation of different operating modes of the high-performance printer 10.
- FIG. 9 shows the duplex operation in which the front and the back of the single sheets are printed by the printing unit D1 or the printing unit D2 become. The passage is clear from the solid line 60 provided with directional arrows.
- the switch W3 When turning on the switch W3, the single sheet is guided with its leading edge to the light barrier of the pair of transport rollers T52. Then the direction of rotation is reversed and the single sheet is fed via the switch W3 to the printing unit D2.
- FIG. 10 schematically shows the run in the two-color duplex printing operating mode on the basis of line 60, the individual sheets being guided past the printing units D1 and D2 twice.
- the single sheets are turned in the switch W4, as is shown by the line 60.
- Figure 11 shows duplex printing with only one printing unit Dl.
- the passage of the single sheets is clear from line 60.
- the single sheets are turned on the switch W2.
- FIG. 12 shows the passage of single sheets along the lines 60a, 60b in the operating mode alternative simplex printing, in which single sheets are alternately fed to the printing units D1 and D2 for printing on the respective front side.
- the single sheets are fed at a speed 2.5 times over the pair of transport rollers 30.
- the individual sheets are divided into the first transfer printing path 44 and the feed channel 50, which opens into the second transfer printing path 46.
- the single sheets are transported further via the transport roller pairs 31, 32 at the speed 2.5 x vg.
- the single sheet is then decelerated in such a way that it is guided past the printing unit D1 at the transfer printing speed VQ.
- the single sheet After passing through the fusing station with the pair of transport rollers T43, the single sheet is accelerated to a high transport speed, for example 4 ⁇ V Q , in order to be output at high speed via the pair of transport rollers T48.
- the single sheets are conveyed in an analogous manner on the feed channel 50 and the second transfer printing transport path 46.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Handling Of Sheets (AREA)
- Printers Characterized By Their Purpose (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19643665 | 1996-10-22 | ||
DE19643665 | 1996-10-22 | ||
PCT/DE1997/002450 WO1998018060A1 (de) | 1996-10-22 | 1997-10-21 | Drucker mit zwei druckwerken und durch schrittmotore angetriebene transportwalzenpaare |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0937282A1 true EP0937282A1 (de) | 1999-08-25 |
EP0937282B1 EP0937282B1 (de) | 2002-01-09 |
Family
ID=7809512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97945774A Expired - Lifetime EP0937282B1 (de) | 1996-10-22 | 1997-10-21 | Drucker mit zwei druckwerken und durch schrittmotore angetriebene transportwalzenpaare |
Country Status (5)
Country | Link |
---|---|
US (1) | US6269237B1 (de) |
EP (1) | EP0937282B1 (de) |
CA (1) | CA2269577C (de) |
DE (2) | DE19781190D2 (de) |
WO (1) | WO1998018060A1 (de) |
Families Citing this family (22)
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DE59902646D1 (de) | 1998-01-29 | 2002-10-17 | Oce Printing Systems Gmbh | Verfahren zum steuern mehrerer schrittmotormodule mit vorherigem laden von rampendaten |
DE19829280A1 (de) * | 1998-06-30 | 1999-06-10 | Oce Printing Systems Gmbh | Verfahren zur Druckbildjustage beim Bedrucken eines Aufzeichnungsträgers mit zwei Druckwerken |
JP2002229276A (ja) * | 2000-11-30 | 2002-08-14 | Ricoh Co Ltd | 画像形成装置および方法ならびに画像形成システム |
US6484008B2 (en) * | 2000-12-19 | 2002-11-19 | Hewlett-Packard Company | Recirculating type paper drive for a direct transfer color printer |
JP3758029B2 (ja) * | 2001-06-18 | 2006-03-22 | 富士ゼロックス株式会社 | 画像形成装置及びこれに用いられる定着ユニット |
DE10142326B4 (de) * | 2001-08-30 | 2004-09-02 | Océ Priting Systems GmbH | Drucksystem aus meheren elektrofotografischen Druckgeräten, die nacheinander einen bandförmigen Aufzeichnungsträger bedrucken. |
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DE10237300B4 (de) | 2002-08-14 | 2005-09-15 | OCé PRINTING SYSTEMS GMBH | Verfahren zur automatischen Behebung eines beim Betrieb einer elektrografischen Druck- oder Kopiereinrichtung auftretenden Fehlers |
DE10250194A1 (de) * | 2002-10-28 | 2004-05-13 | OCé PRINTING SYSTEMS GMBH | Verfahren und Vorrichtung zum Steuern eines elektrografischen Druckers oder Kopierers |
US6814004B2 (en) * | 2003-03-05 | 2004-11-09 | Xerox Corporation | Face-to-face printing within booklet |
US7206532B2 (en) | 2004-08-13 | 2007-04-17 | Xerox Corporation | Multiple object sources controlled and/or selected based on a common sensor |
US7188929B2 (en) * | 2004-08-13 | 2007-03-13 | Xerox Corporation | Parallel printing architecture with containerized image marking engines |
US7310108B2 (en) * | 2004-11-30 | 2007-12-18 | Xerox Corporation | Printing system |
US7226158B2 (en) * | 2005-02-04 | 2007-06-05 | Xerox Corporation | Printing systems |
US8081329B2 (en) * | 2005-06-24 | 2011-12-20 | Xerox Corporation | Mixed output print control method and system |
US7305198B2 (en) * | 2005-03-31 | 2007-12-04 | Xerox Corporation | Printing system |
US7756428B2 (en) * | 2005-12-21 | 2010-07-13 | Xerox Corp. | Media path diagnostics with hyper module elements |
TWI279330B (en) * | 2006-02-15 | 2007-04-21 | Lite On Technology Corp | Printer with dual printing modules |
JP4516925B2 (ja) * | 2006-03-24 | 2010-08-04 | シャープ株式会社 | 画像形成装置 |
JP6414417B2 (ja) * | 2014-09-01 | 2018-10-31 | ブラザー工業株式会社 | 画像形成装置 |
JP7059653B2 (ja) * | 2018-01-29 | 2022-04-26 | 富士フイルムビジネスイノベーション株式会社 | 画像形成装置および画像形成ユニット |
JP7087407B2 (ja) * | 2018-01-25 | 2022-06-21 | 富士フイルムビジネスイノベーション株式会社 | 画像形成装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US4438917A (en) | 1981-10-16 | 1984-03-27 | International Business Machines Corporation | Dual motor aligner |
US4497569A (en) | 1982-09-21 | 1985-02-05 | Xerox Corporation | Copy processing system for a reproduction machine |
FR2541975B1 (fr) | 1983-03-02 | 1990-05-04 | Canon Kk | Appareil d'enregitrement d'images multifonctions |
US4745490A (en) * | 1983-08-26 | 1988-05-17 | Canon Kabushiki Kaisha | Image recording apparatus with multiple image recording means |
US4635920A (en) * | 1984-07-20 | 1987-01-13 | Ricoh Company, Ltd. | Selective sheet loading apparatus |
JPS61129657A (ja) | 1984-11-29 | 1986-06-17 | Iwatsu Electric Co Ltd | 複写機結像部の感光紙搬送装置 |
US4974828A (en) | 1986-08-20 | 1990-12-04 | Canon Kabushiki Kaisha | Sheet stacking apparatus |
JPS63306141A (ja) | 1987-06-05 | 1988-12-14 | Toshiba Corp | 画像形成装置 |
EP0404759B1 (de) | 1988-03-02 | 1992-11-04 | Siemens Nixdorf Informationssysteme Aktiengesellschaft | Einzelblatt-seitendrucker für duplex- und simplexbetrieb |
JPH02231342A (ja) | 1989-03-03 | 1990-09-13 | Fuji Xerox Co Ltd | 用紙搬送装置 |
JP2636441B2 (ja) * | 1989-11-09 | 1997-07-30 | 富士ゼロックス株式会社 | 画像記録装置 |
-
1997
- 1997-10-21 US US09/284,825 patent/US6269237B1/en not_active Expired - Fee Related
- 1997-10-21 DE DE19781190T patent/DE19781190D2/de not_active Ceased
- 1997-10-21 WO PCT/DE1997/002450 patent/WO1998018060A1/de active IP Right Grant
- 1997-10-21 EP EP97945774A patent/EP0937282B1/de not_active Expired - Lifetime
- 1997-10-21 CA CA002269577A patent/CA2269577C/en not_active Expired - Fee Related
- 1997-10-21 DE DE59706137T patent/DE59706137D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9818060A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1998018060A1 (de) | 1998-04-30 |
DE59706137D1 (de) | 2002-02-28 |
US6269237B1 (en) | 2001-07-31 |
DE19781190D2 (de) | 1999-12-23 |
CA2269577C (en) | 2005-07-26 |
CA2269577A1 (en) | 1998-04-30 |
EP0937282B1 (de) | 2002-01-09 |
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