CN85103547A - Image-forming instrument - Google Patents

Abstract

A kind of imager is equipped with a rotating photosensitive drum in its shell, and a developing apparatus is arranged, and is used for manifesting the latent image that forms on the photosensitive drum surface.Developing apparatus comprises one first developer, manifests latent image with first developer of redness, also has one second developer, manifests latent image with second developer of black.First and second developers are by the switch driven on the control panel that is contained in shell.

Description

Image-forming instrument

Involved in the present invention is a kind of imager, and it in cycling time, uses the developer of any required color at single copying operation, just can show copy image on copy paper; More particularly, the present invention relates to a kind of imager, for example a kind of color copy machine therein, is repeatedly made a plurality of copying operation circulation times to a copy paper, uses the developer of different colours separately, just can obtain multicolour copying.

Recently, the development of colored type has obtained promotion aspect duplicating machine.For example, develop practical dichromatism duplicating machine, it can duplicate the coloured image of outer some color of liking of black.Yet, in the common color copy machine of this class, in polynary magazine, using the developer of different colours respectively, each magazine has a developing cell and a photosensitive member to be combined into an integral body.The alternating permutation magazine can be finished polynary color photocopying operation successively.Thereby the color copy machine of prior art need be done pretty troublesome operation.

Therefore, the color copy machine that suggestion is recently adopted is equipped with more than one yuan developer, and they can carry out development operation with the developer of different colours, and by changing developer successively, can finish and use versicolor color photocopying.But in this class duplicating machine, black is used as standard colors, because of its most frequently used arriving in copying operation.Therefore, as when designing duplicating machine, when energized or after stopping the copying operation of non-black pattern, can set up the copy mode of black or standard colors automatically, then these duplicating machine can be significantly improved at aspect the facility use and maintenance aspect.

The present invention designs considering under these situations, and is used to provide an imager, and this imager need not replaced the magazine that comprises developer, can select an imaging pattern in a plurality of imaging patterns and forms image; A plurality of imaging patterns are with comprising that the multiple color of a standard colors forms image, and standard colors imaging pattern wherein, when energized, or after the end of the imaging operation in the pattern of nonstandard color, the standard colors imaging pattern can be set up automatically, thereby facility is used and improved operating efficiency.

According to an aspect of the present invention, the imager that is provided comprises: a shell; An image-carrier, it is placed in the shell, and the portability sub-image corresponding with preimage; Developing apparatus, in order to being apparent in the sub-image that forms on the image-carrier, this developing apparatus comprises with first developer and manifests first developing apparatus of sub-image and manifest second developing apparatus of sub-image with second developer; And the driven device, in order to driven first and second developing apparatuss.

In order to realize above-mentioned purpose of the present invention, design a kind of imager, it uses a plurality of colors that comprise a standard colors, from a plurality of imaging patterns that form image, forming image in selected a kind of imaging pattern, and to make this imager, when energized, or behind the imaging operation in other color mode of end nonstandard color, in a stipulated time, do not do operation, and can set up the imaging pattern of standard colors automatically.

The brief narration of accompanying drawing

Fig. 1 is the side view of a color copy machine, and it is an embodiment according to imager of the present invention;

Fig. 2 is the top plan view of developing apparatus;

Fig. 3 is the top plan view of Fig. 2 of different patterns;

Fig. 4,5 and 6 shows the wiring layout of driving force transmission system, and wherein Fig. 4 is the engagement front view between the gear set gear, and Fig. 5 is the sectional view of gear set in the development state, and Fig. 6 shows that driving force reaches the sectional view of driven wheel;

Fig. 7 is the planimetric map that magnetic rolls driving mechanism, and part is a sectional view;

Fig. 8 is the side view that magnetic rolls driving mechanism;

Fig. 9 A and 9B are that magnetic rolls the side view of driving mechanism at diverse location;

Figure 10 is the skeleton view of developing apparatus;

Figure 11 A and 11B are respectively the top views of a pair of developer.

Figure 12 is the fixing front view of the device of developer;

Figure 13 A, 13B and 13C are handle and the front view of crotch when the relevant position;

Figure 14 is the front view of control panel;

Figure 15 is the block scheme of overhead control circuit;

Figure 16 explains signal generating mechanism and the authentication information generating mechanism that developer is on the scene;

Figure 17 A to 17F is the process flow diagram of a certain operator scheme when explaining startup power supply.

Figure 18 A to 18D is a process flow diagram of explaining copy mode;

Figure 19 A and 19B are the process flow diagrams of explaining automatic interrupt mode.

Now an embodiment who is applied in the imager of electronic copier according to of the present invention is described in detail in detail referring to accompanying drawing.

Fig. 1 shows a kind of dichromatism duplicating machine, as an example of imager of the present invention.Among Fig. 1, several 1 expression duplicating machine shells.Shell 1 has original platform 2 thereon, and what it can be along shell 1 is vertically reciprocating, shown in arrow a among the figure.Deposit copy paper P ₁₁Put right side and the left side that carton 3 and paper collecting disk 4 movably are installed in shell 1 respectively.Lid 5 is equipped with in the top of putting carton 3.The upper surface of lid 5 need to be done with manual operation supply paper P as paper bypass guide plate ₂The time usefulness.Photoconduction cylinder 7 is placed in the part that shell 1 is central authorities basically, so that can rotate clockwise, shown in arrow b.There is 9, one dichromatism developing apparatuss of 8, one optical systems of main charger 10(hereinafter to describe in detail around the photoconduction cylinder 7), one is shifted charger 11,12, one clearers 13 of a separating charger and a discharge tube 14, they are arranged on the rotation direction of cylinder 7 in order.The bottom of place's shell 1 has paper to transmit road 17, the paper P that sends here automatically from putting carton 3 with paper feed roller 15 ₁, or the paper P that manually provides through paper bypass guide plate 6 ₂Send to via determined image transfer district 16 between photoconduction cylinder 7 and the transfer charger 11 along passage 17, import paper collecting disk 4 then.From the direction of paper feed, the paper in the place ahead in image transfer district 16 transmits in the road 17, a pair of registration roller 18 is housed, and in the wings, the hot-rolling 19 and a pair of outlet roller 20 of a pair of composition fixation unit is housed then.

Optical system 9 comprises 23,24,25 and 26 and lens 27 of exposure lamp 22, reflective mirror of band reverberator 21 after.

Photoconduction cylinder 7 drives with the (not shown) of direction driven-mechanism shown in the arrow b, and synchronous with the to-and-fro movement of original platform 2.When operation, at first charged equably by main charger 8 in the surface of photoconduction cylinder 7.Then, with exposure lamp 22 uniform irradiation originals, and the reflected light that comes from original is incident upon on the photoconduction cylinder 7 by optical system 9, forms an electrostatic latent image on the surface of cylinder 7.The electrostatic latent image of Xing Chenging is developed device 10 and appearss as visual picture by this way, and relative with transfer charger 11.

The paper P that automatic or manual is supplied with ₁Or P ₂Send image transfer district 16 to by registration roller 18, and be timed to form visual picture.Move 16 li in district in image transfer, the previous rendered image that forms on photoconduction cylinder 7 was transferred charger 11 and transferred to paper P ₁Or P ₂The surface.The paper P that shifts rendered image is arranged on it ₁(P ₂), separated charger 12 moves apart photoconduction cylinder 7, and transmits road 17 through paper and deliver to hot-rolling 19.With hot-rolling 19 the transition diagram picture is melted also photographic fixing at paper P ₁(P ₂) after, paper P ₁(P ₂) just be input into paper collecting disk 4 by outlet roller 20.

On the other hand, rendered image is being transferred to paper P ₁(P ₂) afterwards, stay residue developer on the photoconduction cylinder 7 parts 13 that are cleaned and remove, the image retention on the photoconduction cylinder 7 is then erased by discharge tube 14, for next copying operation round-robin is prepared well.

One end of the (not shown) of framework up and down that shell is 1 li pivotally is installed in (not shown) on the bolster.Use this arrangement, make the other end of two frameworks can be a required angle, 30 degree for example, mutually pendulum from.

Photoconduction cylinder 7 is housed in a suitable manner, and device comprises main charger 8, optical system 9, exposure lamp 22, developing apparatus 10, clearer 13 and discharge tube 14 on every side on upper frame.Upper frame also is fitted together with original platform 2 and paper feed roller 15, thereby forms a upper member 1a.On the other hand, underframe is equipped with in a suitable manner and puts carton 3, shifts charger 11, separating charger 12, hot-rolling 19, outlet roller 20, paper collecting disk 4 and main motor 28, forms lower member 1b jointly.Therefore, remove the protecgulum (not shown), unclamp the shell locking device (not shown) then, just can upwards rotate upper member 1a, transmit road 17 and expose paper fully from lower member 1b.

Cleaning member 13 is equipped with scraper solenoid 29, makes scraper 30 contacts of cleaning and leaves photoconduction cylinder 7.

Be described in detail the structure of developing apparatus 10 now.

Show in detail that as Fig. 2 developing apparatus 10 comprises first and second developer roll 31a and the 31b, in order to obtain with black being that the routine of standard colors is developed or obtained with non-black, for example red, yellow, orchid or green colour development, the developer roll that driven is above-mentioned.

Developing apparatus 10 vertically is divided into two parts, promptly comprises the first developer 32a of the first developer roll 31a and comprises the second developer 32b of the second developer roll 31b.The first and second developer 32a and 32b movably are installed in 1 li on shell.In the present embodiment, first or go up developer 32a and will be done so that the user can upwards pull out it from shell 1 easily, and second or down developer 32b to design to such an extent that be convenient to the maintenance personal and when safeguarding or check, install and remove from the side.In second developer 32b use is the bigger black reagent G of demand ₂, and that use in the first developer 32a is color developer G ₁

The first developer 32a is made up of developing mechanism part 33a and developer replenishing part 34a.Developing mechanism part 33a comprises the first developer roll 31a, scraper 37a, scraper plate 39a, developer agitator 40a and comprises the shell 41a of all these members.Scraper 37a be contained in the place ahead of developing location 36a or be contained in photoconduction cylinder 7 and developer roll 31a surface on formed color developer G ₁Magnetic brush 35a between the place ahead of sliding contact region, the thickness of magnetic brush 35a is set up.Scraper plate 39a is contained in the rear of developing location 36a, be suitable for the lip-deep magnetic brush 35a of scraping developer roll 31a, and the thing that will scrape is sent into developer storage part 38a.Developer agitator 40a is in the 38a of developer storage part.Developer density detector 42a is connected to the top corresponding to developer roll 31a of shell 41a.Density detector 42a leans out developer G by the magnetics method ₁The variation of magnetoconductivity and the color developer G that surveys ₁Density.

Developer roll 31a rolls 43a by magnetic and sleeve 44a is formed, and the straight line L of the rotation center that passes photoconduction cylinder 7 is dropped at its center ₂On, and and horizontal line L ₁Become an inclination alpha (about 51 degree), sleeve 44a is contained in the outside surface that magnetic rolls 43a, and with the rotation clockwise of Fig. 2.Magnetic rolls 43a and comprises first to the 5th polarity piece 45a, 46a, 47a, 48a and 49a.The first, the 3rd and the 5th polarity piece 45a, 47a and 49a are the arctic, and second and the 4th polarity piece 46a and 48a are the South Pole.About 50 degree of angle theta between first and second polarity piece 45a and the 46a, about 71 degree of the angle theta between 46a and the 47a, about 60 degree of the angle theta between 47a and the 48a, and about 60 degree of the angle theta between 48a and the 49a.

Developer replenishing part 34a comprises funnel 51a, and its developer replenishing mouth 50a is towards the developer storage at 38a of developing mechanism part 33a; Developer supply roller 52a is loaded among the funnel 51a, so that closed developer supply port 50a; And a pair of agitating roller 53a, in order to the developer G among the mixer cone 51a ₁, so that with developer G ₁Deliver to developer supply roller 52a.

The basic structure of the second developer 32b is identical substantially with the first above-mentioned developer 32a.What the former was different with the latter is the shape that is the funnel 51b of developer replenishing part 34b, the magnetic of developer roll 31b rolls the pole placement of 43b, the link position of developer density detector 42b, and for example 50mm is thick to add a narrow scraper plate 54(), about 20 degree in its elevation angle are to tackle the displacement problem of detecting device 42b.In the narration below, quote identical numeral.But each indicates the same class A of geometric unitA included with the first developer 32a with suffix " b " replacement " a ", and the detailed description of these numerals is omitted.

The magnetic of developer roll 31b rolls 43b and comprises first to the 4th polarity piece 45b, 46b, 47b and 48b.The first and the 3rd polarity piece 45b and 47b are the arctic, and second and quadripolarity piece 46b and 48b be the South Pole.Angle theta between the first and second polarity piece 45b and the 46b is about 78 degree, and the angle theta between 46b and the 47b is about 70 degree, and the angle theta between 47b and the 48b is about 80 degree.Magnetic rolls the center of 43b and drops on the straight line of the center of rotation of passing photoconduction cylinder 7, and and horizontal line L ₁An angle beta (about 1 degree) tilts.

The magnetic separately of the first and second developer 32a and 32b rolls 43a and 43b can swing about 25 degree.When magnetic rolled 43a and 43b and swings in this scope, the magnetic brush 35a of developer and 35b can form on the surface of developer roll 31a and 31b respectively, are perhaps removed by the surface.When rolling the magnetic of driving mechanism (mentioning after a while) with magnetic and roll 43a and 43b and move on to the position of regulation, have only among the developer roll 31a of the first and second developer 32a and 32b and the 32b to form magnetic brush 35a or 35b on the developing roller surface with the first and second developer 32a and 32b.

When the first developer 32a works, the magnetic of the first developer 32a rolls the position of 43a, settle to such an extent that make the 3rd polarity piece 47a towards developing location 36a, also to make scraper 37a be placed in the centre of the first and second magnet 45a and 46b basically, and the magnetic of the second developer 32b rolls 43b, then to settle to such an extent that make the first polarity piece 45b towards scraper 37b, as shown in Figure 2.So, only on the surface of the developer roll 31a of the first developer 32a, form magnetic brush 35a.

On the other hand, when the second developer 32b works, the magnetic of the first developer 32a rolls 43a and swings about 25 degree from the position clockwise of Fig. 2, so that the first polarity piece 45a is towards scraper 37a, simultaneously, the magnetic of the second developer 32b rolls 43b from moving about 25 degree of the timely pendulum in the position of Fig. 2, make scraper 37b be placed in the centre of the first and second polarity piece 45b and 46b basically, as shown in Figure 3, thereby, magnetic brush 35b only on the surface of the developer roll 31b of the second developer 32b, formed.

When magnetic rolls 43a(43b) the first polarity piece 45a(45b) with the scraper 37a(37b that makes with nonmagnetic substance) when relative, magnetic brush 35a(35b) stop at developer roll 31a(31b because of following reason) the surface on form.Corresponding to the first polarity piece 45a(45b) sleeve 44a(44b) that part of magnetic brush in surface is very rare, so that can not hold developer G reliably ₁(G ₂).Therefore, can use scraper 37a(37b easily) control magnetic brush 35a(35b) formation.Thereby, make the first polarity piece 45a(45b) with scraper 37a(37b) relative, even sleeve 44a(44b) rotation, also can prevent developer G ₁(G ₂) by scraper 37a(37b).

The movable part of the first developer 32a comprises the driving force of sleeve 44a, the developer agitator 40a of developer roll 31a and developer supply roller 52a etc., is all transmitted by driving force transmission system 61, and this point describes in detail after a while.The movable part of the second developer 32b comprises that the driving force of the sleeve 44b of developer roll 31b and developer agitator 40b etc. is mentioned after a while by the second driving force transmission system 62() transmit.When reversible motor 63 and when forward direction or reverse rotation, the first and second driving force transmission systems 61 and 62, as shown in Figs. 4-6, be to be suitable for alternately starting one of them drive system of the first and second developer 32a and 32b as common drive source.

Now be described in detail driving force transmission system 61 and 62 referring to Fig. 4 to 6.The first driving force transmission system 61 comprises a neutral gear 65, driven wheel 64 engagements that it and reversible motor 63 are driven; One first follower gear 66, it and neutral gear 65 mesh; A neutral gear 67, it and follower gear 66 mesh; And one second follower gear 68, it and neutral gear 67 mesh.The second driving force transmission system 62 comprises one the 3rd follower gear 69, and it and driven wheel 64 mesh; A neutral gear 70, it and follower gear 69 mesh; And one the 4th follower gear 71, it and neutral gear 70 mesh.

When being driven by reversible motor 63, driven wheel 64 does the forward direction rotation, or when pressing the rotation of direction shown in the solid arrow A among Fig. 4, the gear separately 65,66,67 of the first driving force transmission system 61 and the gear 69,70 of the 68 and second driving force transmission system 62 and 71 are by the rotation of the direction shown in the solid arrow separately.On the other hand, when being driven by reversible motor 63, driven wheel 64 does reverse rotation, or press direction clockwise shown in dotted arrow B when rotation, the gear 65 to 68 of the first driving force transmission system 61 and the gear 69 to 71 of the second driving force transmission system 62 respectively press direction shown in the dotted arrow and are rotated.

By with first and second follower gears 66 and 68 corresponding one-way clutchs 74, being installed in respectively with sleeve 44a 66 and 68 becomes on the driving shaft 73a of whole driving shaft 72a and developer agitator 40a.Have only when gear 66 and 68 by direction shown in solid arrow rotation, that is when driven wheel 64 forward directions rotate, just make one-way clutch 74 that driving force is reached driving shaft 72a and they rotated by direction shown in the dash-dot arrows.

By with third and fourth follower gear 69 and 71 corresponding one-way clutchs 75, the 69 and 71 sleeve 44b that are installed in respectively with the second developer roll 31b are become on the driving shaft 73b of whole driving shaft 72b and developer agitator 40b.Have only the gear 69 of working as and 71 by the rotation of direction shown in the dotted arrow, that is when driven wheel 64 reverse rotations, just make one-way clutch 75 that driving force is reached driving shaft 72b and 73b, and they are rotated by direction shown in the dash-dot arrows.

As shown in Figure 6, driven wheel 64 is contained in turning axle 79 securely; Turning axle 79 by bearing 76 rotatably mounted and be connected to by gear mechanism 77 on the driving shaft 78 of reversible motor 63.In more detail, gear 80 is contained on the turning axle 79, and and gear 85 engagements.Gear 85 rotatably is contained on the bolster 83 84 by bearing, 83 of bolsters extend in motor installation frame 81 and with 81 form on the whole supporting seat 82.Gear 85 and bigger gear 86 form whole.Gear 86 and be contained in gear 87 engagements on the driving shaft 78 of reversible motor 63.So, positive and negative two kinds of rotations of the driving shaft 78 of reversible motor 63 all are delivered to turning axle 79 by gear 87,86,85 and 80, thereby also are delivered to driven wheel 64, and the result is, as long as change the sense of rotation of reversible motor 63, just can alternately start first and second developing parts 32a and the 32b.

Press down the color selection key 156 on the control panel, just can accomplish to change the sense of rotation of reversible motor 63, this point can describe in detail after a while.Meanwhile, the magnetic of Attended Operation does not roll 43a or 43b, rolls driving mechanism (narration after a while) by magnetic and moves, so that its first polarity piece 45a or 45b are towards its corresponding scraper 37a or 37b.

Rotatably be contained on the bolster 89 by bearing 88 with the neutral gear 65 of driven wheel 64 and 66 engagements of first follower gear.Bolster 89 is connected to one can center on the rocking arm 91 that a shell 90 is swung, and shell 90 is used for fixing the bearing 76 of supporting rotating shaft 79.So neutral gear 65 removable its positions are so that its mesh driving gear 64 and first follower gear 66 reliably.

The agitating roller 53a of the first developer 32a is driven intermittently by the first actuation mechanism 92a shown in Figure 4.Another agitating roller 53a and developer supply roller 52a interrelate and are driven simultaneously with the rotation of an agitating roller 53a earlier.Ratchet 94a is installed in the end of turning axle 93a of the agitating roller 53a of elder generation of the first developer 32a.Ratchet 96a rotates intermittently with stable angle.Give solenoid 95a energising or outage with swing rocking arm 96a, make connection ratchet 97 thereon adjust above-mentioned stable angle.The sprocket wheel (not shown) be contained in respectively agitating roller on the reference axis 93a and 98 of 53a and be contained in developer supply roller 52a the axle 99a on.The tension of endless chain (not shown) is formed driving force transmission system (not shown) between these sprocket wheels.Agitating roller 53a and developer supply roller 52a are driven together by this driving force transmission system.

The agitating roller 53b of the second developer 32b and developer supply roller 52b are driven simultaneously intermittently by the second starter mechanism 92b and another driving force transmission system, the 92b here is identical with the structure of the first actuation mechanism 92a, and the structure of another driving force transmission system is basically with aforesaid a kind of identical.In Fig. 4, with identical reference number, but each indicates the identical components that is contained with the first actuation mechanism 92a among the second starter mechanism 92b with suffix " b " replacement " a ".

Now narrate the structure that magnetic rolls driving mechanism 100a referring to Fig. 7,8,9A and 9B.Magnetic rolls driving mechanism 100a rotation magnetic and rolls 43a, so that remove magnetic brush 35a in the formation of the surface of developer roll 31a or from the surface of 31a.

The end that magnetic rolls the axle 101a of 43a is supported by the bearing 103a that is connected to framework 102.Swingle 104a is connected to the end of a 101a.The distal end portion of swingle 104a is contained in the engaging groove 107a of rocking arm 106a, and rocking arm 106a is contained on the bolster 105a swingably.Supporting part 108a on the pivot pin end of rocking arm 106a bottom is connected to the moving core 110a of solenoid 109a.One tension spring 112a is connected to the supporting part 111a on rocking arm 106 upper pivot ends.

In the above in Xu Shu the assembling, when solenoid turn-offed, the expulsive force of tension spring 112a made rocking arm 106a make it to remain on the position that the two point dot-and-dash line is represented among Fig. 8 with swingle 104a, when this position, scraper 37a is towards the first polarity piece 45a, shown in Fig. 9 A.So, when solenoid 109a turn-offs, can not on the surface of developer roll 31a, form magnetic brush 35a.On the other hand, when solenoid 109a connects; rocking arm 106a makes the expulsive force of swingle 104a resistance tension spring 112a and swings to the position shown in the solid line among Fig. 8; the first and second polarity piece 45a of magnetic roller 43a and that part in the middle of the 46a are towards scraper 37a, shown in Fig. 9 B at this moment.So, when solenoid 109a connects, on the surface of developer roll 31a, form magnetic brush 35a.

Roll that 43b makes it on the surface of developer roll 31b to form or roll driving mechanism 100b from the magnetic that 31b removes magnetic brush 35b in order to rotation magnetic, to roll driving mechanism 100a identical with above-mentioned magnetic basically for its structure.In Fig. 7 to 9B, with identical reference number, but each is indicated with suffix " b " replacement " a " that magnetic rolls among the driving mechanism 100b and rolls the identical components that driving mechanism 100a is contained with magnetic.

It is correspondingly disconnected and logical when logical and disconnected that solenoid 109b will design proper solenoid 109a.Thereby, on the surface of the first or second developer roll 31a or 31b, alternately form magnetic brush 35a or 35b.

Shown in Fig. 2 and 3, scraper 37b comprises that one is scraped cutter hub 113b by what nonmagnetic substance was made, the iron magnetic component 114 of the longitudinally extending band shape of cutter hub 113b is scraped on an edge, and a pair of (only marking one) is contained in the magnetic component 115b that scrapes the arbitrary end of cutter hub 113b place.Form the magnetic line of force between magnetic component 114 and 115b and the first polarity piece 45b, when the first polarity piece 45b faces scraper 37b to remove the lip-deep developer G of developer roll 31b ₂The time, these magnetic lines of force are prevented developer G effectively ₂Be pulled away.

Scraper 37a comprises that one is scraped cutter hub 113a and a pair of (only marking one) at the magnetic component 115a that scrapes the arbitrary end of cutter hub 113a place by what nonmagnetic substance was made.Scraper 37a is used for preventing developer G in the mode identical with scraper 37b ₁Be pulled away.Different with scraper 37b is that scraper 37a does not have along scraping arbitrary magnetic component that cutter hub 113a longitudinal direction stretches.Utilize the magnetic line of force that forms between the quadripolarity piece 48b in the face of the first polarity piece 45a of the developer roll 31a of scraper 37a and developer roll 31b, prevent to take away developer G ₁

As shown in Figures 2 and 3, magnetic sheet 116 is inserted between two developer roll 31a and the 31b.Magnetic sheet 116 is used for reducing influence and magnetic roller 43a(43b of magnetic flux density) at another magnetic roller 43b(43a) go up the influence that magnetic pole distributes, thus the good charging of developer guaranteed.

In addition, shown in Fig. 2 and 3.The detecting device 117b of developer deficiency is contained in the funnel 51b of the second developer 32b.The detecting device 117b of developer deficiency can detect the developer G among the funnel 51b ₂Surplus reaches the minimizing value of scheduled volume.The detecting device 117b of developer deficiency comprises a test rod, can be according to the developer G among the funnel 51b ₂Surplus and swing; One is holistic trigger 119 with test rod 118; A permanent magnet 120 that is connected to trigger 119; And reed switch 121 as the outer sensor of funnel 51b.Developer G in funnel 51b ₂When quantity reduced, permanent magnet 120 was just near reed switch 121, and the starting reed switch.Undeclared among detecting device 117a(Fig. 2 and 3 of the developer deficiency similar with detecting device 117b) be placed in the funnel 51a of the first developer 32a.

Shown in Fig. 2,3 and 10, filler cap 131 is formed the part of shell 1 top cover face, and it can swing the top side that is installed in developing apparatus 10.Remove filler cap 131, just can expose simultaneously the developer replenishing device that covers the first developer 32a open top 132a lid 133a and cover the lid 133b of the development feeder open top 132b of the second developer 32b.Therefore, take away lid 133a and 133b, just can supply with developer G easily from the top ₁And G ₂Lid 133a and 133b respectively have color indicator 134a and 134b.Color indicator 134a and 134b are convenient to identify the developer G that is stored among funnel 51a and the 51b ₁And G ₂Between color, prevent to obscure the developer of different colours.

Among Fig. 2 and 3, numeral 135 is indicated the lid position detector that detects filler cap 131 states, it comprises the permanent magnet 136 of the fore-end of linking filler cap 131 and as sensor, be connected in the reed switch 137 on the shell 1, when filler cap 131 is closed, when magnet 136 was contacted with reed switch 137, the latter will connect.

Shown in Figure 10,11a and 11b, integrating timer 139a and 139b and developer are housed on the funnel 51a on lid 133a and the arbitrary limit of 133b and the surperficial 138a of 51b and the 138b lack indicator 140a and 140b; 139a and 139b be as the life indicator of indication developer residual life, and 140a and 140b reduce to predetermined quantity in order to developer among the funnel 51a that indicates the first and second developer 32a and 32b and the 51b.Integrating timer 139a and 139b indicate corresponding developer residual life, for instance, are by the sleeve 44a of measurement composition developer roll 31a and 31b and rotation (time) amount of 44b obtain respectively.What for instance in the present embodiment, integrating timer 139a and 139b used is the trade mark of the electrolytic integrating timer of the native camera of FC Timer(richness company limited production).

Store color developer G ₁The first developer 32a be the device of magazine formula, it can take from the top of shell.Start and upwards smoke handle 141(Figure 10), be easy to remove the first developer 32a from shell 1.A pair of align member 142(only illustrates one of them) be connected to the front and rear wall of the developer replenishing district 34a of the first developer 32a separately.Part 144 is supported at the both ends of handle 141, and each personal bolster 143 is installed on the align member 142 swingably.Shown in Figure 12,13A, 13B and 13C, each support section 144 of handle 141 is all dressed up integral body with crotch 145, can wave around its corresponding bolster 143.Crotch 145 with its respective stop pins engages on shell 1, thereby the restriction handle move up.All form as the engaging groove 147 of first localization part with as the end face 148 of second localization part on the base of each align member 142, and engagement and near the register pin on the shell 1 149 and 150 separately.Thereby the first developer 32a is fixed on preposition.

When starting handle 141, crotch 145 just unclamps from stop pin 146, as shown in FIG. 13A.On the other hand, handle is reduced to when being horizontal level substantially, crotch 145 engagement stop pin 146 are shown in Figure 13 B.When with the handle 141 of horizontal level further when pressing down, crotch 145 and stop pin 146 can intermesh more securely, shown in Figure 13 C, so that the first developer 32a is kept down.Therefore, when starting handle 141, just can pack into or take out the first developer 32a, and behind the first developer 32a that packs into, reduce handle 141, just can fix the first developer 32a from the top of shell 1.In a word, laying first developer is easily.

Narrate the development operation of developing apparatus 10 now.As selecting for use the first developer 32a to come work with colored options button 156 shown in Figure 14, then magnetic rolls 43a and 43b will be in position shown in Figure 2.Meanwhile, the rotation of reversible motor 63 forward directions has only the position clockwise rotation of the sleeve 44a of the first developer roll 31a from Fig. 2.The result is to form magnetic brush 35a on the surface of sleeve 44a.So the previous electrostatic latent image that forms on photoconduction cylinder 7 is just by color developer G ₁Develop.When finishing in this way when manifesting electrostatic latent image, magnetic roller 43a clockwise rotates about 25 degree, so that polarity piece 45a is towards scraper 37a.Therefore, stop to form magnetic brush 35a on the surface of sleeve 44a again again.Sleeve 44a rotates a predetermined angular again, and magnetic brush 35a is removed from the surface of the first developer roll 31a.At this moment, on the surface of the second developer roll 31b, do not form magnetic brush 35b yet.Thereby, if select for use the first or second developer 32a or 32b, can not cause color mix or any other trouble as next cycling usefulness.

If select for use the second developer 32b to develop to come work as black with colored options button 156, then the position of magnetic roller 43a and 43b as shown in Figure 3.Meanwhile, reversible motor 63 reverse rotations have only the sleeve 44b of the second developer roll 31b to rotate from Fig. 2 position clockwise.The result is to form magnetic brush 35b on the surface of sleeve 44b.So the electrostatic latent image on the photoconduction cylinder 7 is just by black reagent G ₂Develop.After this, magnetic brush is just removed from the surface of sleeve 44b in aforementioned identical mode, thereby finishes development operation.

Participate in the developer 32a(32b of development operation) developer agitator 40a(40b) and agitating roller 53a(53b), normally rotate.Meanwhile, rotation developer supply roller 53a(53b), making can be by reacting developer density detector 42a(42b) the needs of control signal of output signal supply with developer G ₁(G ₂).Thereby, can keep the excellent operation of developer.

Figure 14 has shown a control panel.One duplicating key 151 is arranged, as the usefulness of starting copying operation on the control panel; The usefulness of the interrupt mode of duplicating is interrupted in break key 152 conducts; An interrupt indicator 153 is as the usefulness of indicating interrupt mode; The usefulness of the numeral of required duplicating is set in one group of ten bond number group 154 conduct; One is duplicated the usefulness that numeral shows the numeral that will duplicate as indication; Colored options button 156 is as the usefulness of selecting color photocopying (for example black, red, blue, green or the like); Colour indicator 157,158,159 and 160 usefulness as the selected colour of indication; A liquid-crystal display section 161 is as the usefulness of indicating mode of operation or state; And a density setting section 162 is as the usefulness of setting reproduction density.

Liquid-crystal display section 161 comprises that is prepared to duplicate sign 163 has been ready to copying operation as the indication duplicating machine a usefulness; A sign that does not duplicate 164 is as the usefulness of indicating the still unripe copying operation of duplicating machine; And a developer lacks the usefulness that does not have developer in the funnel of sign 165 as indication developing apparatus 10.

Whenever press down colored options button 156 once, just can finish alternately colored the selection.Here, supposing the developer that is stored in the first and second developer 32a and 32b, for example, is respectively G ₁Be redness and G ₂Be black.In this case, when adding working power, the black copy mode is just set up automatically, and the second developer 32b is then started, and black indicator 157 is bright.Colored options button 156 under this state as under pressing is then set up red copy mode, and the first developer 32a is then started, and red indicator 158 is bright.Colored options button 156 once recovers the black copy mode again under this state as under pressing again.Therefore, repeat to press down colored options button 156, but with regard to alternate selection black and red copy mode.

Figure 15 illustrates the total control circuit of duplicating machine.In Figure 15, numeral 171 is indicated the microcomputer mark machine of using as master controller, is used for controlling whole duplicating machine.The input end of microcomputer mark machine is connected with input switch 173 by input interface circuit 172.Switch 173 comprises the various keys on the control panel, need sensor 174 as various other switches of copying operation, the developer density detector 42a of the first developer 32a and the detecting device 117a of developer deficiency, the developer density detector 42b of the second developer 32b and the detecting device 117b of developer deficiency, and lid position detector 135.Moreover microcomputer 171 also directly links to each other with storer 175.Storer 175 is by back-up source, and for example dry cell is done standby.

The output terminal of microcomputer 171 is connected with display 178 by output interface circuit 177.Display 178 comprises various indicators and the display part on the control panel, magnetic pole displacement solenoid 109a and the 109b of the first and second developer 32a and 32b, reversible motor 63, integrating timer 139a and the 139b of the first and second developer 32a and 32b, development background power supply 179, the charge power supply 180 of main charger 8 usefulness, shift the transfer power supply 181 of charger 11 usefulness, the separate power supplies 182 of separating charger 12 usefulness, discharge tube 14, developer lacks indicator 140a and 140b, main motor 28, various other solenoids 183, the original platform driving mechanism 184 of driving original platform 2 usefulness, and exposure lamp control circuit 185.Exposure lamp control circuit 185 is controlled exposure lamp by the repercussion of the output signal of automatic exposure sensor 186, and sensor 186 is used for detecting from the light of exposure lamp 22 with from the signal of microcomputer 172.

The first and second developer 32a and 32b have developer signal generating mechanism 187a and 187b on the scene respectively, are used for representing whether developer is on the scene; And have identifying information generating mechanism 188a and 188b, be used for producing each developer exclusive authentication code (indicating the color of developer).From signal and the authentication code that these generating mechanisms 187a, 187b, 188a and 188b take place, be added to the input end of microcomputer by input interface circuit 172.Utilize developer connector 191a and 191b, as shown in figure 16, respectively developer 32a and 32b are electrically connected to input interface circuit 172, then developer signal generating mechanism 187a and 187b and identifying information generating mechanism 188a and 188b on the scene just can send their signal and authentication codes separately.

Each connector 191a(191b) a socket 192a(192b is all arranged) and a plug 193a(193b).Socket 192a(192b) be contained in the side of developer, plug 193a(193b) then link the input interface circuit 172 of Figure 15 with cable.With socket 192a(192b) in line end 194 ₅Connect public line end 194 ₁, can produce developing parts signal on the scene.On the other hand, with arbitrary line end 194 ₂, 194 ₃With 194 ₄(getting which line end decides on relevant developer) and public line end 194 ₁Connect, just can produce 3 authentication codes.

At plug 193a(193b) in, with line end 195 ₁Receive the earth potential of input interface circuit 172 the insides.Thereby, as gang socket 192a(192b) and plug 193a(193b) time, their line ends separately just correspondingly connected.With this method of attachment, can be from the line end 195 of plug 193 ₂, 195 ₃, and 195 ₄And from line end 195 ₅Developer signal on the scene, obtain being indicated as three authentication codes that socket 192 line ends connect.Therefore, when not gang socket 192 and plug 193, developer signal on the scene just can not be from the line end 195 of plug 193 ₅Send out, make and to judge that developer is absent from the scene.

For instance, storer 175 is by a CMOS RAM(random access memory) to make, it calculates the copy (or period of copying operation) that has printed as counter.In the present embodiment, storer 175 has a polynary copy counter (not shown), in order to calculate the copy of corresponding developer 32a and 32b, also has a unique total counter, in order to determine the sum of copy.These counters are selected by the address mark of the authentication code of reacting developer, and can be stored their computational datas separately.The computational data of each counter be by, for example five four-figure systems become, and with the BCD(binary coded decimal coding) form of sign indicating number stores.The computational data of total counter be by, for example six four-figure systems become, and store with the form of BCD sign indicating number.

The operation of the microcomputer 171 of the duplicating machine of structure now is described in detail by this way.

Referring to the process flow diagram of Figure 17 A to 17B, after connecting with the mains, the operation of microcomputer 171 is described below earlier.In recording steps A 0, during power connection, just enter steps A 1.In steps A 1, the second developer 32b of starting contain standard colors or black reagent, and selected auto exposure mode.Forward steps A 2 then to, connect the heating lamp of hot-rolling 19 wherein.Operating in is to enter steps A 3, cuts off the magnetic pole displacement solenoid 109b of the second developer 32b, and makes reversible motor 63 reverse rotations.Subsequent to steps A 4.Reversible motor 63 is stopped the rotation.So enter steps A 5, cut off the magnetic pole displacement solenoid 109a of the first developer 32a, and make the rotation of reversible motor 63 forward directions.Proceed to steps A 6 then, reversible motor 63 is wherein stopped the rotation, so enter steps A 7.Till steps A 6, after power initiation, though but the second developer 32b that black develops is in driving condition, on the surface of the first and second developer roll 31a and 31b, still can prevent to form magnetic brush 35a and 35b.Therefore, select wherein a kind of visualization mode for use as the operator, duplicating machine is ready to start development operation immediately.

In steps A 7, main motor just enters steps A 8 after 28 one schedule times of rotation.In steps A 8, check hot-rolling 19, verify its process of heating and whether finish.As record the process of heating and finish, then light the symbol 163 that the preparation on the control panel is duplicated, and duplicating machine enters stand-by state.Then, in steps A 9, start duplicating machine, make it to accept the button operation on the control panel.

Therefore, behind the startup power supply, according to the duplicating preparation control that the operator is done in succession, microcomputer 171 is just automatically carried out a series of standby control procedure.When the operator has carried out button operation in the steps A 9, just enter steps A 10, check whether break key 152 wherein starts.If break key 152 opens circuit, then enter steps A 11.Connect as button 152, just enter A12.In steps A 12, check duplicating machine, verify it and whether be in interrupt mode now.If duplicating machine is not in interrupt mode, operation just proceeds to steps A 13.In steps A 13, be right after break key 152 startings photocopying conditions before, it comprises duplicating concentration, duplicates putting surely of setting numeral colored and that will duplicate and has been removed; Selected second developer 32b and the auto exposure mode of storing black reagent will duplicate numeral and place " 1 ", and set up interrupt mode.Enter steps A 14 then.When setting up interrupt mode, just done without previous photocopying conditions, and duplicating machine is transformed into standard colors or black copy mode with the manner.Then, the interrupt indicator on the control panel 153 is switched to steps A 14, and enters steps A 11.

Be in the interrupt mode in the steps A 12 if find duplicating machine, operation just proceeds to steps A 15.In steps A 15, recover the photocopying conditions of in steps A 13, being done without again, and the selected again employed developer and exposure mode of being right after before the starting interrupt mode is to remove interrupt mode.Enter steps A 16 then, turn-off the interrupt indicator 153 on the control panel.Operate in is to proceed to steps A 11.

In steps A 11,, check to such an extent that whether the second developer 32b is on the scene according to the developer signal on the scene of the reflection second developer 32b.If the second developer 32b is absent from the scene, just enter steps A 17.In steps A 17,, check whether the developer 32a that wins is on the scene according to the developer signal on the scene of the reflection first developer 32a.Be absent from the scene as the first developer 32a, just enter steps A 18.In steps A 18, color indicator 157 to 160 on the control panel and preparation are duplicated symbol 163 and are turned off to recover standby mode.Thereby, in the duplicating machine, first and second the two all do not have designatedly, forbid that color indicator 157 to 160 indicates color.

If it is on the scene to find in the steps A 11 that the second developer 32b has, operation proceeding to steps A 19.In steps A 19, check whether the first developer 32a is on the scene.If the first developer 32a is on the scene, just enter steps A 20, check whether color selection key 156 wherein starts.If color selection key 156 is connected, just enter steps A 21, check duplicating machine wherein, whether verify the second developer 32b selected.If the second developer 32b is not chosen, just enter steps A 22.In steps A 22, the selected second developer 32b, and operation proceeds to steps A 23.As in steps A 19, find that the first developer 32a is absent from the scene, will jump over steps A 20 and A21 and enter steps A 22.If find that in steps A 20 color selection key 156 turn-offs, and enters steps A 23 with regard to jumping over steps A 21 and A22.

If find in the steps A 17 that the first developer 32a is on the scene, or as finding in the steps A 21 that the second developer 32b is chosen, operation just proceeds to steps A 24.In steps A 24, the selected first developer 32a enters steps A 23 then.Therefore,, or there is one to be absent from the scene among them, just forbids selecting for use the developer that is absent from the scene if the first and second developer 32a and 32b are absent from the scene.

In steps A 23, indicate selected developer 32a or the color of 32b.Promptly be stored in the developer color among selected developer 32a or the 32b, distinguish, and on control panel, light color indicator corresponding to the look of being distinguished by the authentication code that developer is sent here.For instance, be black as the look of being distinguished, then light black indicator 157; If red, then light red indicator 158.

After lighting color indicator, operation proceeds to steps A 25.In steps A 25,, check whether first and second developers are on the scene according to from the detecting device 117a of developer deficiency and the signal of 117b.If find all its corresponding developers of contain of the first and second developer 32a and 32b, then enter steps A 26.In steps A 26, the developer separately that turn-offs the first and second developer 32a and 32b lacks indicator 140a and 140b.

In the steps A 25, there is one or two all to lack developer among developer 32a and the 32b, then enters steps A 28 as finding.In steps A 28, according to signal, check developing apparatus 10 from lid bit detector 135, verify filler cap 131 and whether put in position, if filler cap 131 is put in position really, just enter steps A 26; Otherwise, just enter steps A 29.In steps A 29, the developer of connecting the developer that lacks the developer replenishing amount lacks indicator 140a and/or 140b, enters steps A 27 then.Therefore, if the first and second developer 32a and 32b lack its corresponding developer G ₁And G ₂, the developer that just lights top end opening 132a and 132b next door lacks indicator 140a and 140b.Yet if filler cap 131 is to cover in its position, developer lacks indicator 140a and 140b can not light, just, when only starting filler cap 131, could hit indicator 140a and 140b.

In steps A 27, check selected developer, whether look into its developer on the scene.On the scene as developer, then enter steps A 30, the developer that turn-offs on the control panel in this step lacks symbol 165.Operate in is to proceed to steps A 31.As in steps A 27, find that selected developer lacks developer, just enter A32, the developer that lights on the control panel in this step lacks symbol 165.Operate in is just to proceed to steps A 31.Therefore, only when selected developer lacks its corresponding developer, just connect developer and lack symbol 165.

In steps A 31, check whether duplicating machine has fault.If find that duplicating machine is malfunctioning, will fix a breakdown; Otherwise, just enter steps A 33.

In steps A 33, check duplicating machine, verify it whether in the manual paper supply pattern of unusable paper bypass guide plate 6.If find that duplicating machine is not manual paper supply pattern, that is, if find that duplicating machine is the automatic paper feeding pattern of putting carton 3 in use, then enter steps A 34.In steps A 34, check and put carton 3 paper P ₁Whether on the scene.If paper P ₁Be absent from the scene, just recover standby mode; As on the scene, then enter steps A 35.If finding duplicating machine is the manual paper supply pattern in steps A 33, just jumps over steps A 34, and enter steps A 35.

In steps A 35, according to from the developer of the first and second developer 32a and 32b at field signal, check developer 10, verify which was once taken apart once among developer 32a and the 32b.Any one was all taken apart once if find developer 32a and 32b, just entered steps A 36.In steps A 36,, check the firm degree that relevant developer connects according to signal from lid bit detector 135.Record filler cap 131 as operculum bit detector 135 and be placed on suitable place, just judge that developer connects reliably.

When the connection of having affirmed developer when being reliable, just enter steps A 37.In steps A 37, the sleeve surface of the developer of being pulled down from steps A 3 to A6 processes is removed developer, and recovers standby mode.Therefore, be to pull down when the energized as developer, then after developer connects reliably, remove the developer on the sleeve of split developer.

If in steps A 35, find that developer 32a and 32b neither one once were removed, and then entered steps A 38.In steps A 38, check whether the duplicating key 151 on the control panel starts.As duplicating key 151 is to connect, and then enters in the copy mode that hereinafter describes in detail; Otherwise, just enter steps A 39.In steps A 39, check duplicating machine, verifying on the control panel really, no button operation moved a preset time.If find that having any one to operate in the schedule time moved, and then recovered standby mode; Otherwise, just enter steps A 40.In steps A 40, check duplicating machine, verify whether be in interrupt mode at present.If not finding duplicating machine is to be in interrupt mode, just enter steps A 41.In steps A 41, select black reagent and auto exposure mode for use, duplicating is put several numbers and is placed " 1 ", and recovers standby mode.Thereby if after normal copying operation circulation is over, duplicating machine and inoperation one preset time will be transferred to standard colors or black copy mode and auto exposure mode.

As finding that in steps A 40 duplicating machine is in interrupt mode, just enter steps A 42.In steps A 42, work being used in the photocopying conditions of doing without when setting up interrupt mode again, turn-off the interrupt indicator 153 on the control panel, and recover standby mode.Thereby if after having moved the copying operation in the interrupt mode, duplicating machine is schedule time of inoperation still, just recovers to be right after the pattern of being enjoyed before the starting interrupt mode.

Referring now to the process flow diagram of Figure 18 A to 18D,, is described in detail copy mode whereby.In step B0, record duplicating key on the control panel and be when connecting, just enter step B1.In step B1, give the magnetic displacement solenoid energising of selected developer.So B2 in steps, reversible motor 63 wherein is with the direction rotation corresponding to selected developer.Operate in is to proceed to step B3, in this step, connect clearer 13 blade solenoid, discharge tube 14, main motor 28, shift power supply 181(and shift charger 11), separate power supplies 182 (separating charger 12) and development background power supply 179.So enter step B4, begin to put the paper auto-feed of carton 3.The subsequent step B5 that enters, the position of inspection original platform 2.If original platform 2 not at preposition, is got back to step B6 thus.When the file platform recovers the precalculated position, just enter step B7.

In step B7, connect exposure lamp 22.So enter step B8, connect charge power supply 180(main charger 8), make it to begin to 7 chargings of photoconduction cylinder, and original platform 2 is moved ahead to begin to scan original paper.Operating in is to proceed to step B9, and positioning of rotating roller 18 is with paper P ₁Send image transfer district 16 to.So enter step B10.

In step B10, deduct " 1 " the numerals of duplicating digital indicator from control panel 155 indication at present, and " 1 " is added to each total counter in the storer 175 that selected developer uses and each copy counter in the same storer.Operating in is to proceed to step B11, and shutoff charge power supply 180 wherein is to stop 7 chargings of photoconduction cylinder.So enter B12, turn-off exposure lamp 22 wherein.The subsequent step B13 that enters sends original platform 2 back to.So enter step B14.

In step B14, check the position of original platform 2.Get back to preposition if find original platform 2, just entered step B15.In step B15, prevent registration roller 18 rotations, prevent that also original platform 2 from moving backward.Operating in is to proceed to step B16, checks duplicating machine wherein, verifies the duplicating number that whether reaches predetermined.If the arrival predetermined number just enters step B17.

In step B17, according to signal, check selected developer 32a or 32b from its developer density detector 42a or 42b, whether the developer density of verifying selected developer 32a or 32b exceeds lower limit.If developer density exceeds lower limit, just enter step B18; Otherwise, just enter step B19.In step B19, check duplicating machine, verify developer and whether supplied with one period schedule time continuously.If do not detect continuous filling developer, just restart step B17, as the repetition of aforementioned operation.If record developer replenishing continuous one period schedule time, just enter step B18.In other words, in developer density is controlled automatically, have intrinsic density content and minimum density content, can not cause the change of developer flowability, and, at copying operation finally, till the supply of the driving of developer and developer reaches minimum content to the density of developer continuously.

In step B18, turn-off the magnetic pole displacement solenoid 109a of selected developer 32a or 32b or the power supply of 109b.So enter step B20, stop the rotation of reversible motor wherein.Operating in is to proceed to B21, and blade solenoid 29 wherein, main motor 28, discharge tube 14, transfer power supply 181, separate power supplies 182, and development background power supply 179 are all turn-offed, and returned to standby mode.

If in step B16, do not find that the setting numeral of duplicating once reached, then enter step B22.In step B22, by the copy counter in the storer of checking selected developer, check the life-span of developer, verify in the copy counter present numeral whether and the predetermined numeral of no show.If the life-span of developer does not finish, just enter step B23.

In step B23, check the required Q-character (hereinafter telling about) of color change, verify the requirement whether a color change is arranged, if there is not this requirement (Q-character=0), recovering step B4 is to repeat aforementioned operation.Requirement (Q-character=1) if any color change just enters B24.In step B24, change selected developer.So enter step B25, turn-off the magnetic pole displacement solenoid of the previous developer of selecting.Operating in is to proceed to step B26, stops reversible motor wherein.So recovering step B1 is to repeat aforementioned operation.Therefore,, need to change the development look, after afoot development operation is over, just use other visualization way as early as possible instead if during copying operation.

Will finish if find the developer life-span among the step B22, just enter step B27.In step B27, check duplicating machine, look at whether other developers of same color are on the scene.If it is on the scene that this developer does not have, with regard to recovering step B4 to repeat aforementioned operation.If have with other developers of color on the scenely, just enter step B28.In step B28, selected developer with color.Operate in is to proceed to step B25.Therefore, if the developer end-of-life of the developer in using, this developer is just preferentially replaced with the developer of the developer of color by contain (if the words that have).

Now, be described in detail automatic interrupt mode with this referring to the process flow diagram of Figure 19 A and 19B.Regulate duplicating machine, make it interrupt automatically repeating at interval at official hour.

When starting is interrupted automatically, enter step C1, check whether reversible motor wherein rotates.Rotate if find reversible motor, just enter step C2, connect the integrating timer 139a or the 139b of the developer in its operation.Operate in is to proceed to step c3.Check the wherein value of Q-character A.If Q-character A is not " 1 ", just enter step C4, timer A wherein picks up counting.So enter step C5, check timer A, verify it and whether counted 5 second time.As examine timing in 5 seconds, just enter step C6, make Q-character A set wherein.Operate in is to proceed to C7.As in step C5, not detecting 5 seconds timing, just keep 5 second time of step C5.

As finding that in step C3 Q-character A just enters step C8 for " 1 ".In step C8,, check the developer density of selected developer according to from the developer density detector 42a of selected developer and the signal of 42b.If developer density is lower than predetermined component, just enter step C9.In step C9, drive the developer supply roller 52a or the 52b of selected developer, to supply with developer.Be higher than intended component if find the developer density among the step C8, just jump over step C9, and directly enter step C7 by step C8.

Therefore, in density is checked, be right after power initiation after, Q-character A is " 0 ", so that it is not " 1 " among the determining step C3, and makes it to enter step C4.Among the step C4 to C6 behind step C3, timer A inserted Q-character A with " 1 " after picking up counting 5 seconds.Therefore, on the basis that in copying operation, experiences a schedule time after (for example about 5 seconds), realize the inspection of density in the output of developer density detector 42a or 42b.Begin to supply to after magnetic rolls 43a or 43b at developer, this schedule time need be used for stablizing the flow of developer to detecting device 42a or 42b.In other words, the execution that density is checked is after the developer stability of flow, therefore improves its reliability.

In step C7, check the break-make situation of the color selection key 156 on the control panel.If color selection key 156 is connected, just enter step C10, and will require to change the Q-character set of color.Operate in is to proceed to step C11.As in step C7,, just jump over step C10, and after step C7, directly enter step C11 as finding color selection key 156 access failures.

As in step C1, not finding the reversible motor rotation, just enter step C12.In step C12, " 0 " is inserted Q-character A, timer A resets, and disconnects integrating timer 139a or 139b.So enter step C11.

In step C11, check duplicating machine, verify and whether exist in order to indicate the requirement of total duplicating number (importing this numeral with Arabic numerals) by ten bond number groups 154 on the control panel.If the requirement of this indication is arranged, just enter step C13.In step C13, with the duplicating digital indicator 155 on the control panel, the present numeral of total counter in the instruction memory 175.Operate in is to proceed to step C14.

If in step C11, do not detect the total requirement of duplicating number of indication, just enter step C15.In step C15, utilize the first developer 32a(to import with Arabic numerals by ten bond number groups 154), verify whether there is the indication requirement of having duplicated number.If there is the requirement of this indication, just enter step C16.In step C16, with duplicating number display 155, indicate with the first developer 32a corresponding memory 175 in the present numeral of copy counter.Operate in is to proceed to step C14.

If in step C15, do not detect the requirement of indication, just enter step C17.In step C17, utilize the second developer 32b, check duplicating machine, verify and whether exist indication to duplicate the requirement of numeral (by ten bond number groups, with the arabic numeral input).If the requirement of indication is arranged, just enter step C18.In step C18, to duplicate digital indicator 155, the present numeral of copy counter in the indication and the second developer 32b corresponding memory 175.Operate in is to proceed to step C14.

If in step C17, do not detect the requirement of indication, just enter step C19.In step C19, to duplicate the normal numeral of duplicating of digital indicator 155 indications.Operating in is to proceed to step C14, checks duplicating machine wherein, verifies the requirement (by ten bond number groups, arabic numeral being imported relevant developer) that whether has the duplicating numeral of removing one of them developer.If do not detect the requirement of removing, just finish automatic interrupt mode.If the requirement of removing is arranged, just enter step C20.In step C20, the present numeral of copy counter in the developer corresponding memory 175 of removing and appointment, and finish automatic interrupt mode.

Developing apparatus has two developers (will to give detailed description herein) in the present embodiment, and on the control panel, the switch of two developers of driven is housed then.Therefore, may have an imager, form image in the imaging pattern that it can be selected in the polynary imaging pattern of a group, and need not to replace the magazine that comprises developer.

In this imager, during energized, if or be not after copying operation in the pattern of black finishes, in one period schedule time, not operate at any, will set up black (it is often used as Standard Colors) copy mode automatically.Therefore, the instrument of present embodiment is easy to use, easy operating, and the operation that need not pass through key not recover the copy mode of black or standard colors.

If one or first and second developers developer in the two is not installed in the duplicating machine shell, can be prevented that it is selected.So,, also will improve operating efficiency simultaneously even just can not cause do not have developer also can start a kind of like this operating mistake of copying operation in the duplicating machine.

If certain be not black pattern copying operation set up interrupt mode midway, then can select black or Standard Colors copy mode automatically.Therefore,, do not need to carry out any button operation, just can recover the black copy mode as interrupter's end user.Moreover, even during interrupt mode, also can obtain the selection (or color selection) of developer, and when the cancellation interrupt mode, just can recover the pattern of before the starting interrupt mode, enjoying automatically.Therefore, this instrument or duplicating machine further are improved from suitable way.

Check duplicating machine, whether any developer threw off when verifying power connection.If recorded disengagement, just check whether the connection of this developer is reliable.If determining the connection of developer is reliably, just make its operation, so that the developer on its developer roll (sleeve) is removed.So, developer is installed in due position after, developer just can not be stayed on the developer roll of previous developer of throwing off, so that can not cause the mixing of color when using other developer.

In addition, the developer storage part of black imaging equipment is done greatlyyer than the appropriate section of colour development equipment on capacity.Therefore, be easy between black and colour development process, make one's options, and the black developing process because of will more often using, can need not often to supply with developer and carried out.

Though, in the above-described embodiments, once black was narrated as standard colors, also can be other outer color of black.

In addition, in the above-described embodiments, the present invention is used to the dichromatism duplicating machine.Yet much less the present invention is what not limit the use of in this embodiment, and it can be used for forming by developer any imager of image, for example, and facsimile recorder or use the so-called multicolor copier of three kinds or more duplicating colors.

Claims (20)

1, an imager is characterized in that comprising

A shell;

An image-carrier that is contained in the shell, in order to fortune select on it with the corresponding sub-image of original image;

Be used for being apparent in the developing apparatus that forms sub-image on the image carrier surface, above-mentioned developing apparatus comprises first developing apparatus that manifests sub-image with first developer, and second developing apparatus that manifests sub-image with second developer; With

The driven device of driven first and second developing apparatuss.

According to the imager of claim 1, it is characterized in that 2, above-mentioned first and second developing apparatuss comprise first and second developer rolls separately.

According to the imager of claim 2, it is characterized in that 3, each above-mentioned developer is made up of the developer of two kinds of compositions.

According to the imager of claim 3, it is characterized in that 4, above-mentioned first and second developer rolls comprise that separately a magnetic rolls and centers on the sleeve that magnetic rolls.

According to the imager of claim 1, it is characterized in that 5, above-mentioned first and second developing apparatuss comprise first and second funnels separately, in order to store their corresponding developers.

6, according to the imager of claim 5, it is characterized in that, above-mentioned first funnel, the developer of contain first color therein, and above-mentioned second funnel, contain is as the developer of second color of Standard Colors therein.

According to the imager of claim 6, it is characterized in that 7, above-mentioned second color is a black, and above-mentioned first color is other outer color of black.

According to the imager of claim 7, it is characterized in that 8, the capacity of volume ratio first funnel of above-mentioned second funnel is big.

According to the imager of claim 6, it is characterized in that 9, on the above-mentioned shell upper end face control panel is housed, above-mentioned driven device comprises the switch that is positioned on the control panel, uses this switch, can select first or second developing apparatus.

According to the imager of claim 6, it is characterized in that 10, above-mentioned driven device when making power work, is selected one of them predetermined developing apparatus from two developing apparatuss.

According to the imager of claim 10, it is characterized in that 11, above-mentioned predetermined developing apparatus is second developing apparatus.

According to the imager of claim 9, it is characterized in that 12, above-mentioned driven device when starting switch, is selected other developing apparatus.

According to the imager of claim 6, it is characterized in that 13, above-mentioned driven device when measuring imaging operation when having interrupted a schedule time after imaging operation finishes, is just selected predetermined developing apparatus.

According to the imager of claim 13, it is characterized in that 14, above-mentioned predetermined visualization device is second developing apparatus.

According to the imager of claim 2, it is characterized in that 15, above-mentioned first and second developing apparatuss can be placed in the shell movably.

16,, it is characterized in that also comprising in order to detect the pick-up unit of first and/or second position of developing apparatus in shell according to the imager of claim 15; This imager also comprises the control device that drives first and/or second developing apparatus, when measuring the position of first and/or second developing apparatus in shell with pick-up unit, drives developing apparatus, makes it to remove developer from the developer roll of developing apparatus.

17, according to the imager of claim 15, it is characterized in that also comprising pick-up unit, whether on the scene in order to first and/or second developing apparatus in the detection shell; This imager also comprises control device, prevents that the driven device from selecting that or those device of being found to be absent from the scene in the shell by pick-up unit.

18, by the imager of claim 1, it is characterized in that also comprising interrupt selecting device, it makes one of them developing apparatus carry out imaging process, and other developing apparatus is then carried out other imaging process; It also comprises control device, and when selecting interrupt selecting device, this control device makes the imaging process of automatically selected second developing apparatus of interrupt selecting device.

19, according to the imager of claim 18, it is characterized in that, when setting up interrupt mode, can select this first developing apparatus with the driven device with interrupt selecting device.

According to the imager of claim 18, it is characterized in that 20, when interrupting interrupt mode that selecting arrangement sets up when being cancelled, the developing apparatus that control device is selected is the developing apparatus with regard to having driven before interrupt mode takes place.

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