CN1699066A - Printing device - Google Patents
Printing device Download PDFInfo
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- CN1699066A CN1699066A CN 200510067256 CN200510067256A CN1699066A CN 1699066 A CN1699066 A CN 1699066A CN 200510067256 CN200510067256 CN 200510067256 CN 200510067256 A CN200510067256 A CN 200510067256A CN 1699066 A CN1699066 A CN 1699066A
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- power supply
- printing equipment
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Abstract
To safely stop a printer without damaging the printer, when a commercial alternator is out of order.
Description
Technical field
The present invention relates to the printing equipment of hole plate print device etc.
Background technology
In general, various OA, electric equipment are to bring into play this machine function by the supply voltage of input commercial ac power source.
But the unsettled situation of commercial ac power source is a lot.Particularly the power supply situation is also very unstable with national difference.For example according to inventors' investigation alone, although can see the rated voltage of supplying with on the market of the People's Republic of China (PRC) is 220V, but supply with high voltage sometimes, confirm to have the fact of suitable machine breakage such as OA, electrical equipment machine more than or equal to 410V.The also frequent simultaneously phenomenon (moment disconnection) that moment power supply disappearance takes place is taken place simultaneously by these two kinds of phenomenons, just produces more unsettled accident situation.
To this point, be example now with the printing equipment, when the abnormal voltage that surpasses above-mentioned 400V in the scope of input voltage is transfused to, should implement the not damaged countermeasure of safety to these goods (printing equipment).
The state that prior art stopped in input supply voltage moment, when promptly moment disconnected, the power supply of these goods was disconnected by its transient OFF time, and if input supply voltage is during than the unusual high high voltage of rated voltage, then this goods breakage.
This state has following unfavorable condition to produce.
Usually, this goods are about AC280V when following in input voltage range, it has not damaged design, but when supply with surpassing the abnormally high-voltage of 400V as described above, then Da Ti situation is, electric capacity break (cracker), liquid occurring spills, different intereelectrode short-circuits, working stops owing to safety device (fuse, breaker etc.), so to stop safely roughly be impossible.
In this goods, be conceived to printing equipment, particularly during hole plate print device, because it possesses plate-making portion, so just produce problem alone.Be relative cylinder shape the key plate body paper its be to use heat head to make a plate according to pictorial data, simultaneously, this key plate paper roll that plate-making is finished is on version body cylindraceous, in the end of a period of reeling, need the processing that the rearward end of this key plate body paper is cut into specific length with cutter, in such plate-making process,, then produce printing equipment and stop and cutting off mistake if power issue as described above takes place.Consequently be wound on key plate body paper on edition body and become key plate body paper with the cylinder shape motionless state that links together, after when connecting power supply etc. again and carry out printing and move, then the key plate body paper constantly is drawn out coiling from the cylinder body along with the rotation of version body.Like this, produce the high key plate body paper of cost and be wasted, and print self and also print bad by the overlapping of key plate body paper.
And during to this situation, even want the version body forward layback come out, also since the key plate body paper be connecting can not pull, the user can't handle, and has to entrust the specialized maintenance personnel, the interruption prolongation of presswork.
Summary of the invention
The objective of the invention is to, under the unusual situation of commercial ac power source, this printing equipment is not stopped safely not damagedly.
The present invention is the printing equipment that moves from commercial ac power supply, possess: power circuit, it has the charger that the supply voltage that described commercial ac power source carried out the switch of conducting, disconnection to the input of this printing equipment and utilize described commercial ac power source charges, and when described switch disconnects the electric power of described charger charging to each supply; Monitoring arrangement, it monitors the supply voltage state of described commercial ac power source; Checkout gear, its state at the described supply voltage that monitors detect abnormity of power supply when having surpassed the level state scope of stipulating; Condition checkout gear, it detects the duty of this printing equipment when detecting abnormity of power supply; The power supply cut-off, it disconnects described switch when detecting abnormity of power supply, detecting this printing equipment by described condition checkout gear in action the time, this printing equipment and power supply are being disconnected the state transitions of becoming better according to the charging voltage of described charger.
According to the present invention, monitor the supply voltage of commercial ac power source, when surpassing the scope of specified level state, detect as abnormity of power supply, at this moment, at once described commercial ac power source is carried out conducting to the input of this printing equipment, the switch that disconnects is forced to disconnect, unusual commercial ac power source input is disconnected, simultaneously, if this printing equipment is in action the time, then the charger that charging is finished is as power supply, the state transitions that makes this printing equipment power supply disconnect and become better is not so under the unusual situation of commercial ac power source, can have damaged ground to this printing equipment and stop safely.
Description of drawings
Fig. 1 is the integrally-built summary vertical profile of an expression one embodiment of the invention hole plate print device front elevation;
Fig. 2 is the plane of its guidance panel of expression;
Fig. 3 is the calcspar of expression power-supply system schematic configuration example;
Fig. 4 is the key diagram about each threshold value level;
Fig. 5 is the action control example is carried out in expression by machinery control CPU according to the situation of commercial ac power source a general flowchart;
Fig. 6 is the plane of expression display frame example;
Fig. 7 is other routine planes of expression display frame.
The specific embodiment
One embodiment of the invention are described with reference to the accompanying drawings.What the printing equipment of present embodiment was represented is the example that hole plate print device is suitable for, and Fig. 1 is the integrally-built summary vertical profile of this hole plate print device of an expression front elevation.
The basic structure of hole plate print device is known, so simply describe.This hole plate print device comprises: possess scanner section 2, plate-making portion 3, Printing Department 4, composing portion 5, sheet feeding section 6, the row's paper portion 7 of ADF1 etc.
Scanner section 2 is to have the structure of the image of original copy (not shown) being carried out optically read digital scanner.Plate-making portion 3 is according to the pictorial data that is read by scanner section 2, the key plate body paper utilization of cylinder shape heat head is carried out the heat fusing perforation, like this key plate 8 is made a plate, simultaneously the version body 9 of its relative Printing Department 4 is sent, and be wound on the outer peripheral face of this edition body 9, end is thereafter cut into the length of regulation with cutter (not shown).
Printing Department 4 comprises: version body 9, and it is the cylindric of porous, is driven and pivots, key plate 8 is wound on its outer peripheral face; Pressure roller 10, it is arranged on can contact on the position of leaving with the outer peripheral face of this edition body 9 and can move freely; Inking portion (not shown), it is arranged on inside of edition body 9 etc.The paper 11 that this Printing Department 4 comes clamping to supply with from sheet feeding section 6 by version body 9 and the pressure roller 10 that is wound with key plate 8, at this moment by the printing ink supplied with in version body 9 from inking portion is oozed out from the perforated portion of key plate 8, and transfer printing is printed at paper 11.
Composing portion 5 is the key plate of finishing using 8 of finishing printing regulation number and not wanted, peels off from the outer peripheral face of version body 9, and the structure that the key plate of peeling off 8 is accommodated.
Sheet feeding section 6 is the structures that possess paper feeding platform 12 and be mounted to pair of right and left paper feeding gusset hurdle 13 grades that can be free to slide on paper feeding platform 12, is separating paper feeding and the structure of guiding between version body 9 and pressure roller 10 at the paper of placing with stacking states on the paper feeding platform 12 11.At this, this sheet feeding section 6 is that be arranged to can free lifting by DC motor (not shown) by elevating mechanism (not shown), is the structure that overlaps the device body side when the most the next position.Guiding between version body 9 and pressure roller 10 and the paper 11 that prints transport portion 14 by absorption and are adsorbed and transport, to row's paper portion 7 row's paper.Between sheet feeding section 6 and row paper portion 7, form transport paper 11 transport path 15.Be provided with a plurality of not shown jam detection sensors on the path 15 especially transporting, detect the shipping situation of paper 11.
Row paper portion 7 possesses row's paper platform 16 and is mounted to arrange the pair of right and left paper discharging side fence 17 that is free to slide on the paper platform 16 and the structure of a terminal fence 18 at this.
The plane that is arranged on the guidance panel 21 on the present embodiment hole plate print device that Fig. 2 represents.This guidance panel 21 is provided with: the LCD22 of touch screen structure, and various information such as its aftermentioned warning message use literal and pattern to show; Plate-making key 23, it reads the image of scanner section 2 and key plate 8 plate-making of plate-making portion 3 begin; Printing key 24, it begins the printing of Printing Department 4; Examination printing key 25; Stop key 26; Ten key 27; Pattern setting key 28 etc.
The schematic configuration example of present embodiment hole plate print device power-supply system is illustrated in the calcspar of Fig. 3.The hole plate print device of present embodiment, commercial ac power source (input AC) as importing power supply, it is provided with by commercial ac power source is carried out its input conducting, disconnects the switch of usefulness, i.e. power switch 31 (also can be relay tip etc.) and be connected with the power circuit 33 of supply unit 32.This supply unit 32, owing to have supply voltage according to the commercial ac power source of input, and generation is for the driving voltage of each section load 34 such as described motor, with the function of generation for the DC voltage of 5V, the 24V etc. of each control part, so, the supply voltage that present embodiment possesses by utilizing commercial ac power source charges, even and power switch 31 also can guarantee that the conduct of voltage output in the left and right sides between the several seconds has the capacitor 35 of the charger of capacity when being disconnected.In this power circuit 33, be provided with: have the supply voltage status function that monitors commercial ac power source and the control circuit 36 of power switch 31 automatic disconnection functions.This control circuit 36 is accepted to move from the DC voltage of supply unit 32 supplies.
And control CPU37 by the machinery of described each section load 34 action of I/O control part control, be mounted on the machinery control substrate 38.Owing to this machinery control CPU37 accepts to move from the DC voltage that supply unit 32 is supplied with, so it plays a role as the micro computer of bearing the whole control of this hole plate print device with not shown RAM, ROM.On this machinery control CPU37, except being connected with reserve RAM39,, but also import about the output signal of supply voltage monitoring state from control circuit 36 connections also by serial communication attended operation panel 21 as nonvolatile memory.
As the power monitoring signal that gives machinery control CPU37 from control circuit 36, shared into the specified threshold value signal of upper limit a, the specified threshold value signal of lower limit b, upper limit abnormal voltage threshold value signal c, these four kinds of signals of lower limit abnormal voltage threshold value signal d (H level or L level).
With reference to Fig. 4 threshold value level and these signals are described.At first stipulate the rated voltage zone of the commercial ac power source that this hole plate print device uses, but its specified threshold value Vb of specified threshold value Va～lower limit that is the upper limit.It is to make an appointment with ± 10% value that these specified threshold value Va, Vb are specified to for rated value.And upper limit abnormal voltage threshold value Vc and lower limit abnormal voltage threshold value Vd are as make this hole plate print device predict the level value that surplus is set arbitrarily in not damaged scope for the rated voltage zone.Therefore, present embodiment is set for and remained unchanged above the scope of threshold value Va～Vb is not abnormity of power supply, and the scope that surpasses threshold value Vd～Vc is detected as abnormity of power supply and by machinery control CPU37.As the value of threshold value Vd～Vc,, be that 180～300V ground is set in the People's Republic of China (PRC) for example as being 85～150V in Japan.
Under this condition, if detect the specified threshold value Va height of the voltage ratio upper limit, then the specified threshold value signal of upper limit a switches to the L level from the H level, on the contrary, is less than or equal to the specified threshold value Va of the upper limit if detect voltage, then switches to the H level from the L level.And if it is low to detect the specified threshold value Vb of voltage ratio lower limit, then the specified threshold value signal of lower limit b switches to the L level from the H level, on the contrary, if detect voltage ratio more than or equal to the specified threshold value Vb of lower limit, then switches to the H level from the L level.If detect voltage ratio upper limit abnormal voltage threshold value Vc height, then upper limit abnormal voltage threshold value signal c switches to the L level from the H level, on the contrary, is less than or equal to upper limit abnormal voltage threshold value Vc if detect voltage, then switches to the H level from the L level.And if it is low to detect voltage ratio lower limit abnormal voltage threshold value Vd, then lower limit abnormal voltage threshold value signal d switches to the L level from the H level, on the contrary, if detect voltage more than or equal to lower limit abnormal voltage threshold value Vd, then switches to the H level from the L level.
Therefore, machinery control CPU37 is according to these signals a～d from control circuit 36 inputs, and when any of upper limit abnormal voltage threshold value signal c or lower limit abnormal voltage threshold value signal d was the L level, detecting was abnormity of power supply (checkout gear function).More specifically say and be exactly, as the abnormity of power supply that might install damaged high-voltage side, and lower limit abnormal voltage threshold value signal d can be detected as the abnormity of power supply of low voltage side that might power supply moment disconnection when the L level upper limit abnormal voltage threshold value signal c when the L level.And, machinery control CPU37, at upper limit abnormal voltage threshold value signal c, lower limit abnormal voltage threshold value signal d is under the state of H level, and any of the upper limit specified threshold value signal a or the specified threshold value signal of lower limit b also can detect power supply warning unusual (checkout gear function) when being the L level.
With reference to general flowchart shown in Figure 5, the action control example that this structure is carried out by machinery control CPU37 according to the situation of commercial ac power source is described.It is handled, and for example connects main switch by the user and the power supply of commercial ac power source is switched on beginning (step S1).Usually, owing to not being (N of S2) that disconnects by abnormity of power supply last time, so plate-making key 23 or printing key 24 (S3) are pressed in wait.If supress plate-making key 23 or printing key 24 (Y of S3), then make a plate or print the pre-treatment (S4) of usefulness, confirm according to the signal a～d that gives whether above-mentioned abnormity of power supply (S5) is arranged the mechanical action from control circuit 36.If (N of S5) then makes a plate or prints the post processing (S6) of usefulness when not having abnormity of power supply.At this moment, be that power supply is warned when unusual, breakage, power supply moment of also not worrying device disconnects etc., so, make a plate as usual or print the post processing (S6) of usefulness.
And detect (Y of S5) when being the abnormity of power supply of L level at signal c or signal d, then the situation of abnormity of power supply (becoming the signal kinds c of L level or d etc.) is write (S8) among the reserve RAM39, simultaneously, by control circuit 36 power switch 31 is disconnected, (S9) interdicted in the input of commercial ac power source at once.At this, because this hole plate print device is to make a plate or printing in the action, the complete deenergization of this hole plate print device, implementation is along with the post processing (S10) of the power supply disconnection of the state transitions of becoming better so utilize the charging voltage of charging in capacitor 35.For example, when plate-making portion 3 detects abnormity of power supply by the heat head in the key plate body paper is bored a hole plate-making, instantaneous the stopping of perforation plate-making action of heat head along with the disconnection of power switch 31, the cutter of the portion of plate-making simultaneously 3 is worked by being used to the supply of self-capacitance device 35 electric power, carry out the key plate body paper and cut off action, finishing dealing with.Therefore, when abnormity of power supply is arranged, it is to have stopped with regard to instantaneous before the high voltage that surpasses 400V arrives, so being unabroken safety, this hole plate print device stops, and its operation key plate body paper midway neither connect together motionless with the body of cylinder shape under halted state, the waste treatment of its key plate body paper is easy, does not produce problems such as pulling out of being wasted when power supply is connected again.
The processing of the Y of step S5 is to carry out as the function of checkout gear and condition checkout gear.State-detection is to judge according to the job information of the control part corresponding with plate-making portion 3 and Printing Department 4.The processing of step S8 is to carry out as the function of storage device, and the processing of step S9 is to carry out as the function of power supply cut-off, and the processing of step S10 is to carry out as the function of halted state transfer device.
On the other hand, at the state (N of S3) that plate-making key 23 and printing key 24 are not pressed, confirm according to the signal a～d that gives whether the above-mentioned unusual or abnormity of power supply (S11, S12) of power supply warning is arranged from control circuit 36.Detecting signal c and signal d is that H level, signal a or signal b are that the power supply of L level is warned (Y of S11) when unusual, then the unusual situation of power supply warning (becoming the signal kinds a of L level or b etc.) is write (S13) among the reserve RAM39, simultaneously, LCD22 by guidance panel 21 carries out showing (S14), the reference that supplies the user whether to proceed to operate about the unusual warning of power supply warning.At this moment, on LCD22, be expressed as shown in Fig. 6 (b), delegation's warning message being arranged: " abnormity of power supply, machinery might stop " from the general display frame shown in Fig. 6 (a).Like this, the user can know that power supply is in bad order, plays the anti-effect that terminates in possible trouble of the state of affairs that stops to machinery by abnormity of power supply.
The processing of step S11 is carried out as the function of checkout gear, and the processing of step S13 is carried out as the function of storage device, and the function that the processing of step S14 is installed is by way of caution carried out.
And in that to detect the power supply warning that is not to be housed in permissible range unusual, when signal c or signal d are the abnormity of power supply of L level (Y of S12), the situation of abnormity of power supply (becoming the signal kinds c of L level or d etc.) is write (S15) among the reserve RAM39, simultaneously, because this hole plate print device is not at work, so by control circuit 36 power switch 31 is disconnected, (S16) is interdicted in the input of commercial ac power source at once.
The processing of the Y of step S12 is carried out as the function of checkout gear and condition checkout gear.The processing of step S15 is carried out as the function of storage device, and the processing of step S16 is to carry out as the function of power supply cut-off.
If the power turn-on that returns is originally handled (S1), then judge when going up secondary source is disconnected whether be forced to disconnect (S2) by abnormity of power supply according to the abnormity of power supply information and the power supply warning abnormal information that are stored among the reserve RAM39.Be by abnormity of power supply and the power supply of power supply after being disconnected when connecting again (Y of S2) last time, after the normal recovery of enforcement is handled (S17), LCD22 by guidance panel 21 carries out showing (S18) about the unusual comprehensive warning of power supply warning, is the warning about the power supply situation of urging the user.At this moment, as shown in Figure 7, the last expression of LCD22 be " possibility that abnormity of power supply is arranged in the environment that uses machinery " so comprehensive warning message.Like this, the user can know that power supply is in bad order, plays the anti-effect that terminates in possible trouble of the state of affairs that stops to machinery by abnormity of power supply.Under this state, if " acknowledgement key " represented among Fig. 7 pressed (Y of S19), the then exchange of the demonstration shown in Fig. 6 (a) and (b) (Y of S20, S21).
The processing of step S18 is that the function of installing is by way of caution carried out.Relatively, the abnormity of power supply information of reserve RAM39 and power supply warning abnormal information, do not have abnormity of power supply carry out actual act the time be eliminated (S7).
Claims (6)
1, a kind of printing equipment, it moves from commercial ac power supply, wherein, it possesses: power circuit, it has the charger that the supply voltage that described commercial ac power source carried out the switch of conducting, disconnection to the input of this printing equipment and utilize described commercial ac power source charges, and when described switch disconnects the electric power of described charger charging to each supply; Monitoring arrangement, it monitors the supply voltage state of described commercial ac power source; Checkout gear, its state at the described supply voltage that monitors detect abnormity of power supply when having surpassed the level state scope of stipulating; Condition checkout gear, it detects the duty of this printing equipment when detecting abnormity of power supply; The power supply cut-off, it disconnects described switch when detecting abnormity of power supply; The halted state transfer device, it is detecting this printing equipment in action the time by described condition checkout gear, according to the charging voltage of described charger this printing equipment and power supply are disconnected the state transitions of becoming better.
2, the printing equipment shown in claim 1, wherein, described monitoring arrangement monitors voltage level and the transient OFF time as the supply voltage state.
3, the printing equipment shown in claim 1 or 2, wherein, scope as described specified level state, it is the permissible range level of freely setting for specified threshold value level, described checkout gear, surpassed the scope of specified threshold value level state at the described supply voltage state that monitors, but in the scope of described permissible range level state the time, it is unusual to detect the power supply warning.
4, as the printing equipment of claim 1～3 shown in each, wherein, it possesses: nonvolatile memory; Storage device when it detects abnormity of power supply at described checkout gear, was stored in abnormity of power supply information in the described nonvolatile memory before described switch disconnects; Warning device when its power supply after described switch disconnects following abnormity of power supply is connected again, sends warning about power supply according to the abnormity of power supply information of storing in the described nonvolatile memory.
5, the printing equipment shown in claim 3, wherein, it possesses: nonvolatile memory; Storage device, it detects power supply at described checkout gear and warns when unusual, and power supply warning abnormal information is stored in the described nonvolatile memory; Warning device, it detects power supply at described checkout gear and warns when unusual the warning of sending this situation.
6, as the printing equipment of claim 1～5 shown in each, wherein, it possesses when according to pictorial data the key plate body paper being made a plate and being wound on edition body, described key plate body paper is cut into the plate-making portion of specific length.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004150106A JP2005329621A (en) | 2004-05-20 | 2004-05-20 | Printer |
| JP150106/04 | 2004-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699066A true CN1699066A (en) | 2005-11-23 |
| CN100357113C CN100357113C (en) | 2007-12-26 |
Family
ID=35475378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100672565A Active CN100357113C (en) | 2004-05-20 | 2005-04-20 | Printing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005329621A (en) |
| CN (1) | CN100357113C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019751A (en) * | 2009-09-14 | 2011-04-20 | 海德堡印刷机械股份公司 | Paperless printing press in case of power cut |
| CN109397883A (en) * | 2018-10-31 | 2019-03-01 | 森大（深圳）技术有限公司 | Printer head voltage control circuit and printer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011218652A (en) * | 2010-04-08 | 2011-11-04 | Oki Data Corp | Information processor and image forming apparatus |
| CN104076633B (en) * | 2013-03-27 | 2018-08-07 | 日本冲信息株式会社 | Image forming apparatus and control method |
| JP2016163537A (en) * | 2015-03-05 | 2016-09-05 | 株式会社沖データ | Electric power supply and printing device |
| JP6319172B2 (en) * | 2015-05-11 | 2018-05-09 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6184661A (en) * | 1984-10-02 | 1986-04-30 | Mita Ind Co Ltd | Device for preventing paper jam in copying machine |
| JPH0630947B2 (en) * | 1988-10-04 | 1994-04-27 | 東京航空計器株式会社 | Fixed position return device for rotary drum |
| US5182583A (en) * | 1990-07-17 | 1993-01-26 | Canon Kabushiki Kaisha | Ink-jet having battery capacity detection |
| JPH04220351A (en) * | 1990-12-21 | 1992-08-11 | Canon Inc | Ink jet recording device |
| JP3381348B2 (en) * | 1993-12-27 | 2003-02-24 | セイコーエプソン株式会社 | Printer |
| KR100246917B1 (en) * | 1997-12-22 | 2000-04-01 | 윤종용 | Ink-jet head operating method |
| JP4466936B2 (en) * | 2000-06-14 | 2010-05-26 | 東北リコー株式会社 | Printing device |
| JP2002354797A (en) * | 2001-05-28 | 2002-12-06 | Ricoh Co Ltd | Power supply |
| JP2004109661A (en) * | 2002-09-19 | 2004-04-08 | Ricoh Co Ltd | Image forming device, image forming system, and computer program |
-
2004
- 2004-05-20 JP JP2004150106A patent/JP2005329621A/en active Pending
-
2005
- 2005-04-20 CN CNB2005100672565A patent/CN100357113C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019751A (en) * | 2009-09-14 | 2011-04-20 | 海德堡印刷机械股份公司 | Paperless printing press in case of power cut |
| US8736105B2 (en) | 2009-09-14 | 2014-05-27 | Heidelberger Druckmaschinen Ag | Printing press without paper during power failure and method of operating the printing press |
| CN109397883A (en) * | 2018-10-31 | 2019-03-01 | 森大（深圳）技术有限公司 | Printer head voltage control circuit and printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005329621A (en) | 2005-12-02 |
| CN100357113C (en) | 2007-12-26 |
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Owner name: RICOH CO. LTD. Free format text: FORMER OWNER: TOHOKU RICOH CO., LTD. Effective date: 20130523 |
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Effective date of registration: 20130523 Address after: Tokyo, Japan, Japan Patentee after: Ricoh Co., Ltd. Address before: Miyagi Prefecture in Japan Patentee before: Tohoku Ricoh Co., Ltd. |