JP2002251862A - Storage medium and information recording and reproducing device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and inexpensively perform label printing to a storage medium by a user. SOLUTION: An optical disk 2 is carried in the direction of a turntable coupled on a spindle motor 4, and is fixed on the turntable, and is rotated by the spindle motor 4. A print head 10 accesses an inner periphery of the optical disk 2. A label layer consisting of an organic material or inorganic material provided in the optical disk 2 is irradiated with a light spot from the print head 10, a reflectivity of the label layer is partially changed with intensity of a light quantity of the light spot, and printing is carried out. The access of the print head 10 to the inner periphery of the disk 2 is detected by a home position sensor, and, thereby, the print head 10 starts printing. The print head 10 gradually moves to the outer periphery from the inner periphery of the optical disk 2, and continues printing during this period. Then, printing is completed over the whole area of the optical disk 2 when the print head 10 reaches the outer periphery of the disk 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage medium capable of directly printing the contents recorded on a storage medium such as an optical disk so that the contents can be clearly seen from the outside, and a storage medium for performing the printing process. The present invention relates to an information recording / reproducing apparatus using the same.

[0002]

2. Description of the Related Art Conventionally, in order to attach a label to a storage medium, a label printed by another label printer, a label created by handwriting, or a dedicated print directly to the storage medium is used. Printing was performed directly on a storage medium using a printing device. Because the operation of attaching a printed or handwritten label to a storage medium is a very troublesome operation for some users,
After all, we will not put the label. As a result, when it is necessary to obtain necessary information recorded on the storage medium, a problem occurs that it takes a lot of time to search for the required information in the storage medium which has been increased by storing a large amount of information. .

Further, a dedicated device for directly printing on a storage medium is expensive because it is a dedicated device, and further requires an operation of removing the storage medium from the recording / reproducing device and setting it again on the dedicated device. The printing of the storage medium is postponed by these troublesome operations and the like. When printing is performed later, it is necessary to perform an inefficient operation such as checking the contents again by the recording / reproducing device and then performing the printing process.

[0004] For example, in US Pat.
A writer for recording information on an R or CD-RW storage medium, a reader for confirming the recording result of the recorded storage medium, a printer for printing an index or a label on the storage medium, a writer and a reader There is proposed an apparatus provided with handling means for moving a storage medium between the printer and a printer.

[0005]

However, there is a problem that such an apparatus is expensive and the apparatus itself is large. In addition, as a printing method for printing on a storage medium, a thermal printing method or an inkjet printing method can be considered. In the former method, the base of an optical disk as a storage medium is generally made of resin because heat is applied during printing. Therefore, there is a danger that the optical disc is thermally deformed.

In the latter case, it is necessary to consider the scattering of ink and the replenishment of depleted ink during the printing process. For example, in the case where an ink jet head for performing label printing is provided in the apparatus, it is necessary to store information on the optical disc. There is a risk that optical elements (lenses, prisms, etc.) related to the optical pickup for performing recording / reproducing may be soiled. further,
Although an ink replenishment mechanism is necessary, in the case of a device such as a personal computer that is built into a housing, only the decorative plate (bezel with a window for inserting an optical disk) appears on the surface. Replenishment is difficult, and there is a problem that a separate mechanism needs to be provided to replenish the ink.

The present invention is directed to solving the above-mentioned problems of the prior art, and eliminates the need for a user to attach a label to a storage medium or directly print using a separate printing device, and is simple and simple. Inexpensive label printing can be performed, without applying heat to the storage medium, and without contaminating the optical element for recording and reproducing information.
Still another object of the present invention is to provide a storage medium that enables a label printing unit that does not require replenishment of consumables such as ink and an information recording / reproducing apparatus using the same.

[0008]

In order to achieve this object, the invention according to claim 1 in the information recording apparatus of the present invention is characterized in that the information recorded on the other surface different from the one surface on which the information is recorded is recorded. A storage medium having a label printing surface for printing related contents, wherein at least one label layer made of an organic material or an inorganic material is formed on a layer structure of the label printing surface, whereby a character or a picture is formed by light. Can be printed.

Further, the invention according to claim 2 is characterized in that, when the label printing is performed with light having a single wavelength by using a coloring material as the material of the label layer formed on the label printing surface, While maintaining sensitivity to light input,
It is possible to enhance the preservability of label print characters.

According to a third aspect of the present invention, there is provided a label printing method, wherein a label change material is used as a material of a label layer formed on a layer structure of the label printing surface. The print character can be rewritten a plurality of times because the storage stability of the print character is improved and the contrast of the print character is obtained by the difference in the phase state of the phase change recording material.

According to a fourth aspect of the present invention, the storage medium including the label printing surface is made of a polycarbonate substrate,
Due to the structure of the dielectric layer, recording layer, dielectric layer, reflective layer, dielectric layer, label layer, dielectric layer, and protective layer,
By adding a three-layer structure including a label layer to an ordinary storage medium, a storage medium that describes a label print character can be formed. At the time of label printing, using a land / groove engraved on polycarbonate, focusing and Effective label printing by tracking can be performed.

According to a fifth aspect of the present invention, in the layer structure of the storage medium including the label printing surface, the thickness of the dielectric layer sandwiching the label layer is changed to change the thickness of the printing on the label printing surface. By changing the color, it is possible to adjust the spectral reflectance of the dielectric layer film by changing the thickness of the dielectric layer, thereby changing the character color and contrast on the label printing surface.

According to a sixth aspect of the present invention, there is provided an information recording / reproducing apparatus for recording / reproducing information on / from a storage medium, wherein the information is printed on the storage medium by a label printing means provided in the apparatus main body. As compared with the case where printing on a storage medium is performed by another apparatus, space saving of the user is achieved, information recording / reproduction on the storage medium and printing can be performed by the same apparatus, and printing related to recording / reproduction data can be facilitated. , It is possible to prevent forgetting to print on the storage medium.

The invention according to claims 7 to 10 is characterized in that at least one of a mechanism or a circuit for realizing recording and reproduction of information on a storage medium is shared as the label printing means, and the shared mechanism is used. May be a rotating mechanism and a loading mechanism, and a seek mechanism for moving a print head or an optical pickup in a radial direction in a storage medium, or the shared circuit may be a microprocessor, a semiconductor ROM, a semiconductor RA.
M, a buffer manager circuit, a host interface circuit, a seek system control circuit, a rotation system control circuit, and a loading system control circuit, at least one of which reduces the cost for realizing the printing function, and simplifies by sharing the mechanism. It is possible to reduce the size of the device and to share the firmware by using the same circuit, thereby shortening the development period of the firmware and reducing the development cost.

Further, the invention according to claim 11 is characterized in that the label printing means is provided with a reference position generating means of a rotation angle for generating one pulse for one rotation of the storage medium, whereby the rotation of the storage medium in the rotation direction is provided. The printing start position can be determined with high precision, and high quality printing can be performed.

According to a twelfth aspect of the present invention, the label printing means includes a print head for printing on a storage medium and an optical pickup for recording and reproducing information from the storage medium. Connecting means for detachably connecting a print head for printing on a medium and an optical pickup for recording and reproducing information from the storage medium; and a convex or concave portion provided on the print head as the connecting means. A concave or convex portion provided on the optical pickup, and a drive unit for detachably mounting the print head and the optical pickup,
The optical pickup alone can be moved separately from the print head, which reduces the movable load and enables high-speed movement in the radial direction of the storage medium, and detaches from and attaches to the convex or concave portion of the print head and the concave or convex portion of the optical pickup by connecting means. Can be easily done.

The invention according to claims 15 and 16 is characterized in that the print head comprises a plurality of print heads capable of printing at the same time, and each of the print heads is arranged shifted in a radial direction of a rotating storage medium. A print timing obtained by multiplying a print timing frequency of the reference position by multiplying a print timing of each print head with an arbitrary print head position as a reference position by a ratio of the position of the print head shifted in the radial direction to the reference position. That it is configured to print at the timing frequency,
Further, in the print head, the delay time or advance time of the print timing signal is controlled in accordance with the linear velocity of the storage medium at the printing position, so that the linear velocity difference of the storage medium in each of the plurality of print heads is reduced. Even so, high-quality printing can be realized by generating a print timing signal corresponding to it, preventing variations in printing position due to differences in linear speed, and a common print timing generation circuit, etc. Can be simplified.

The invention according to claims 17 to 20 controls at least one of positioning of a print head, print timing of a print head, and disk rotation speed at the time of printing using information read from the storage medium. Detecting from wobbled lands or grooves on the information recording surface side of the storage medium;
Further, when controlling the rotation using a wobble signal detected from the wobbled land or groove,
The use of the frequency-divided wobble signal and the use of the multiplied wobble signal when generating the print timing signal using the wobble signal detected from the wobble land or groove allow the storage medium to have a wobble signal. High-precision positioning can be performed without being affected by eccentricity, or printing is performed in synchronization with a signal from a storage medium, eliminating the need for a high-precision print timing generation circuit or a high-precision encoder circuit for rotation control. The rotation can be controlled stably, and the printing accuracy in the rotation direction of the storage medium can be improved.

The invention according to claims 21 to 22 is characterized in that, as the control of the disk rotation speed, the rotation speed at the time of printing is made slower than the rotation speed at the time of recording or reproduction of the storage medium. A high-speed mode for printing at a high speed selected by a user and a low-speed mode for printing at a low speed, wherein the low-speed mode is configured to print using information read from a storage medium. By performing the tracking operation described above, it is possible to reduce the error in the printing position at the time of printing, and to print the printing information that does not require the printing quality by the user's selection.

According to a twenty-third aspect of the present invention, in the label printing means, a displacement of a plurality of print heads in a rotation direction of the storage medium, and a difference in a linear velocity at a radial position of the print head on the storage medium. And / or a difference in the printing position caused by a difference in the linear speed of the print head with respect to the storage medium is corrected by controlling an appropriate printing timing signal to correct the shifting of all the printing positions, or With the configuration in which the print information generated together is controlled to correct the shifts of all the print positions, it is possible to correct the print shifts caused by various causes with a simple circuit.

The invention according to claims 24 and 25 is characterized in that the label printing means automatically prints the contents related to the information recorded on the storage medium, and further prints the information recorded on the storage medium. Printing related content
With the configuration that is performed before the storage medium is ejected out of the device, the visualized information corresponding to the information recorded on the storage medium is always printed without being aware, and the storage medium must be output before the storage medium is taken out of the device. The visualization information associated with the recording data is printed, so that it is possible to easily access a storage medium on which necessary information is recorded.

The invention according to claims 26 to 29 is characterized in that the encoder means provided on a spindle motor for rotating the storage medium, the address detection means detecting an arbitrarily provided address on the storage medium, and the encoder Means for calculating the output of the address detecting means, and storing by the label printing means based on the phase relationship between the rotational angle position obtained by the address detecting means and the reference angular position obtained by the encoder means. Obtaining the printing position of the label printing surface of the medium, and obtaining the phase difference between the rotation angle position obtained by the address detection means and the reference angle position obtained by the encoder means by the arithmetic means, A label mark on a storage medium by label printing means based on the reference angle position obtained from Printing on a label printing surface of the storage medium by using the label printing means, and printing the print area information outside the information recording area of the storage medium or in a predefined recording area. The information may be any one or more of the position printed on the label print surface of the storage medium, the print track information of the print area indicating the print range, and the print angle information. When additional printing or partial overwriting is performed on the print area, the print start position can be grasped.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1A is a partial cross-sectional view of a layer structure of an optical disc as a storage medium according to the first embodiment of the present invention, and FIG. 1B is a cross-section of a label layer, a reflective layer, and an information recording layer in the layer structure. It is a figure which shows in detail. As shown in FIG. 1A, the cross-sectional structure of the optical disk is composed of a plurality of layers sandwiched by a protective layer made of a UV-curable resin on a polycarbonate substrate, and the detailed layer configuration is shown in FIG. 1B. .

As a layer structure of a printable optical disk having a label printing surface, a polycarbonate substrate / information recording layer /
It consists of a reflective layer / label layer / protective layer. The information recording layer is the same as the information recording layer currently used in optical disks such as CD-R and CD-RW, and can record data processed by a computer, music data, and the like.

Further, the optical disk of the first embodiment is provided with a special label layer. By partially changing the reflectance of the label layer, characters, images, and the like can be printed. For example, by printing an index of information recorded on the information recording layer of the optical disc, the date and time of creation, the name of the creator, and the like on the label layer, it is possible to visually grasp the information recorded on the information recording layer. It becomes possible.

The label layer is made of an organic material or an inorganic material, and printing can be performed on the label layer by forming a light spot on the label layer.
That is, since the light reflectance of the label layer is changed by irradiating the light spot, it is possible to form a high reflectance portion and a low reflectance portion on the label layer, thereby forming a character or an image. .

As the organic material used for the label layer, for example, a dye material composed of a phthalocyanine-based material is used. This is also used as a recording material for a CD-R, and the reflectance changes when irradiated with a light spot.

Further, examples of the inorganic material used as the label layer include Ag (silver) and Te (terrium).
There are a material that changes the transmittance by causing an alloy reaction between the two layers by light or heat, and a material that is made of a phase change recording material.

An optical disk using a phase change recording material will be described below. Here, the layer configuration of the optical disk is as shown in FIG.
It has a layer structure of first dielectric layer / information recording layer / second dielectric layer / reflective layer / third dielectric layer / label layer / fourth dielectric layer / protective layer.

In the layer structure of the optical disc, a polycarbonate substrate layer having a thickness of about 0.6 mm made of polycarbonate is used. For the information recording layer, a phase change recording material is used, and AgInSbTe or Ge ₂ Sb ₂ Te ₅ based on SbTe metastable phase is used.
There are Sb-Sb ₂ Te ₃ pseudo binary compound materials, such as. The SbTe group has a lower melting point and better recording sensitivity. The thickness is 5 to 50 nm, preferably 10 to 30 nm. As the information recording layer, a phase change recording material is used, but a dye material may be used.
Materials such as those used for MO (Magneto Optical Disk) may be used.

As the reflection layer, Al alloy, Ag alloy, C
A material having good thermal conductivity such as a u alloy is suitable. Its thickness is 10 to 200 nm, preferably 10 to 50 n.
m. As the label layer, a phase change recording material similar to the information recording layer is used, and a material such as AgInSbTe or Ge ₂ Sb ₂ Te ₅ based on SbTe metastable phase is used.
b-Sb ₂ Te ₃ pseudo binary compound material or the like;
The e group has a lower melting point and better recording sensitivity. However, when the label printed surface of the optical disk after label printing is visually observed, the density of the printed characters can be increased by using a Ge ₂ Sb ₂ Te ₅ group material. The film thickness is 5 to 50 nm, preferably 10 to 30 nm.

As the protective layer, an ultraviolet curable resin is used. For example, an acrylic resin such as SD-318 manufactured by Dainippon Ink and Chemicals is generally used. The first, second, third and fourth dielectric layers provided between the respective layers include
A transparent and water-impermeable material such as ZnS—SiO ₂ , ZnS, or TiO ₂ is preferable.
It is configured to be about nm.

In the optical disk having the above-described layer structure, the spectral reflectance of the dielectric layer film can be freely adjusted by changing the thickness of the third dielectric layer and the fourth dielectric layer sandwiching the label layer. The character color and contrast on the label printing surface can be apparently changed.

As described above, as a method of printing on the label printing surface of an optical disk, a light spot of a printing portion is irradiated onto the label layer, and the reflectance of the label layer is partially changed by the intensity of the light spot. And print.

The formation of an optical spot for printing can be performed by a configuration similar to an optical pickup for recording and reproducing information on an optical disk. That is, in order to record information on the information recording layer of the optical disk, a minute light spot is irradiated on the information recording layer, and information pits are provided on the information recording layer depending on the intensity of the light spot. On the other hand, the light spot of the printing section that irradiates the label layer is
It may be larger than the light spot that irradiates the information recording layer.
This is because the resolution for printing on the label layer may be higher than the resolution of information pits provided on the information recording layer.

The size of the light spot is proportional to the wavelength of the light beam, and is inversely proportional to the NA (numerical aperture) of the objective lens used to form the light spot. Therefore, the optical pickup for printing on the label layer can be realized by increasing the wavelength or decreasing the NA of the objective lens.

Further, it is possible to print on the label layer by an optical pickup for recording on the information recording layer. However, from the viewpoint of the resolution required for label printing, printing is performed using an unnecessarily fine light spot. Therefore, considerable printing time is required. However, there is an advantage that an optical pickup dedicated to printing is not required, and the optical pickup can also be used as an optical pickup for recording information on the information recording layer.

In this case, the information recording layer side of the optical disc is arranged with respect to the optical pickup in order to record information on a normal optical disc. Arrange so that it comes. That is, label printing is performed by replacing the front and back surfaces of the optical disk.

As a method of performing label printing, a group of bits is formed so as to form a character while performing tracking and focusing in a bitmap shape. Alternatively, characters may be formed by lowering the rotation speed of the optical disk and moving the optical pickup to perform raster scanning.

Further, in order to print and record at high speed, a plurality of optical pickups may be formed. As a method of forming a character, it is possible to perform a plurality of methods of performing label printing using one optical pickup as described above in parallel.

FIG. 2 is an external perspective view showing an information recording / reproducing device (hereinafter, referred to as a drive device) according to Embodiment 2 of the present invention. The second embodiment uses the optical disk as the storage medium described in the first embodiment, and provides a label printing means in the drive device to facilitate operability, and uses a conventional drive for realizing a printing function. A label printing function is realized by sharing a drive mechanism in the apparatus with, for example, a rotation mechanism and a loading mechanism.

In FIG. 2, the housing of the drive 1 is
It has a so-called half height size, and uses the same one as a general CD-ROM or CD-R / RW drive. Optical disk 2 as a storage medium
Is mounted on the loading tray 3 with the label printing surface, which is a non-information recording layer, opposite to the loading tray 3. This is a common CD-ROM or CD-R / RW
Same as drive. CD-ROM and CD-R
The same loading mechanism as that used in the / RW drive is adopted.

FIG. 3 is a side view showing a portion for mounting an optical disk. In FIG. 3, when the loading tray 3 is inserted into the drive device, the optical disk 2 is mounted on the turntable 5 of the spindle motor 4. The clamper 6 is magnetically attracted to the turntable 5 (not shown, but a permanent magnet is built in the turntable 5 and an iron piece is built in the clamper 6), and the optical disc 2 is moved between the clamper 6 and the turntable 5. It is pinched by. The configuration in which the optical disk 2 is attached to the turntable 5 by the clamper 6 is also a general method adopted in a drive device such as a CD-ROM and a CD-R / RW, and its components can be shared.

FIG. 4 is a perspective view showing a spindle motor. As shown in FIG. 4, an encoder plate 7 is added to the spindle motor 4. This encoder plate 7 has
Slits 8 are provided, but only one is wider. A sensor including a photo interrupter (not shown) for detecting these slits 8 is provided. By detecting the wide slit 8a once per rotation of the encoder plate 7, a signal can be obtained once per rotation. Alternatively, after detecting the wide slit 8a, the edge of the second narrow slit 8b (the end of the slit) may be used as a signal once per rotation. Further, the rotation speed of the spindle motor 4 can be detected by another narrow slit 8b.

FIG. 5 is a side view showing a print head for accessing an optical disk and a head portion of an optical pickup.
In FIG. 5, an optical pickup 30 for recording / reproducing information accesses the lower surface of the optical disk 2 and a print head 10 composed of an optical pickup for forming an optical spot for label printing on the upper surface of the optical disk 2. Access.

FIG. 6 is a perspective view showing a seek mechanism dedicated to the print head. In FIG. 6, the print head 10 can be positioned at an arbitrary radial position on the optical disk by a seek mechanism 11 dedicated to the print head. The driving force of the first gear 14 provided on the shaft portion 13 of the seek motor 12 is transmitted to the second gear 16 provided on the lead screw 15 to apply the driving force to the print head 10. The first gear 14 is integrally provided with a seek encoder plate 17. The slits provided in the seek encoder plate 17 are made finer than those provided in a normal CD-ROM or CD-R / RW. A general optical pickup is disposed on the opposite side of the optical disk (not shown), and records / reproduces information on / from the optical disk.

The procedure for printing on an optical disk by the drive device of the second embodiment configured as described above will be described with reference to the drawings.

The optical disc 2 fixed to the turntable 5 of the spindle motor 4 by the loading mechanism
It is rotated by a spindle motor 4. Print head 10
Accesses the inner circumference of the optical disc 2. Print head 1
The fact that 0 has accessed the inner circumference is detected by the home position sensor 18. That is, when the print head 10 is located on the inner circumference, the projecting portion 19
Is detected by the home position sensor 18. Thus, the print head 10 starts printing. The print head 10 gradually moves from the inner circumference to the outer circumference of the optical disk 2, and continues printing during this time. Thereafter, when the print head 10 reaches the outer periphery, printing is completed over the entire area of the optical disc 2.

The home position sensor 18 may be a photo interrupter that optically detects the protruding portion 19 of the print head 10 or an electric contact type sensor that is pressed and detected by the protruding portion 19 of the print head 10.

Although the procedure for printing from the inner circumference of the optical disk 2 has been described here, printing may be started from the outer circumference. In this case, the home position sensor 18 is installed on the outer circumference, and the print head 10 accesses the outer circumference of the optical disc 2. The home position sensor 18 detects that the print head 10 has accessed the outer periphery. That is, when the print head 10 is located on the outer periphery, the protrusion 19 of the print head 10 is recognized by the home position sensor 18 detecting it. The print head 10 starts printing, gradually moves from the outer circumference to the inner circumference of the optical disc 2, and continues printing. Then, when the print head 10 reaches the inner circumference, printing has been completed over the entire area of the optical disk.

FIG. 7 is a perspective view showing a seek mechanism shared by the print heads according to the third embodiment of the present invention. Here, components having substantially the same functions as those in the second embodiment described in FIGS. 2 to 6 and having substantially the same functions are denoted by the same reference numerals.

In the third embodiment, since the seek mechanism is shared in addition to the common use of the rotation mechanism and the loading mechanism in the second embodiment, the duplicate description using FIGS. .

The optical pickup 30 shown in FIG. 7 is for recording / reproducing information from / on the optical disk 2 and can be positioned at any radial position on the optical disk 2 by the seek mechanism 11. The print head 10 is detachably provided on the optical pickup 30. In other words, the print head 10 has the arm 20
Thereby, the optical pickup 30 can be detached or attached.

A procedure for printing on the optical disk 2 with the above configuration will be described. Optical disc 2 fixed to turntable 5 of spindle motor 4 by loading mechanism
Is rotated by the spindle motor 4. The optical pickup 30 accesses the inner circumference of the optical disc 2. The print head 10 starts printing, and continues printing by gradually moving from the inner circumference to the outer circumference of the optical disk 2 by the optical pickup 30. When reaching the outer circumference, printing over the entire area of the optical disc 2 has been completed.

When printing is not performed on the optical disk 2, the print head 10 is separated from the optical pickup 30. This eliminates the influence of the print head 10 on the operation of recording / reproducing information on / from the optical disk 2. That is, since the print head 10 is not moved by the optical pickup 30, the access time at the time of recording / reproducing information is not delayed.

The print head 10 for printing is an optical pickup as described in the second embodiment. The light spot formed on the label layer of the optical disk by this optical pickup is larger than that of the optical pickup 30 for recording and reproducing information. for that reason,
The wavelength of a semiconductor laser as a light source provided in the optical pickup is increased. Alternatively, the NA of the objective lens provided in the optical pickup is reduced.

FIG. 8 is a perspective view showing a print head and an optical pickup. As shown in FIG.
Has an objective lens 31, which condenses a light beam emitted from a semiconductor laser, which is a light source (not shown), on an optical disc to form a light spot and performs recording / reproduction of information. Similarly, the print head 10 is provided with a semiconductor laser as a light source and an objective lens. A light spot is formed on the label layer of the optical disk by the print head 10, and printing can be performed on the label layer by changing the amount of light of the light spot. Since the objective lens (not shown) of the print head 10 is located on the objective lens 31 of the optical pickup 30, the objective lens 31 can access the entire area from the inner circumference to the outer circumference of the optical disc 2. Thus, printing can be performed over the entire area of the optical disc 2.

The print head 10 and the optical pickup 30 are connected by an arm 20. A tip portion of the arm 20 is provided with a groove 32 provided in the optical pickup 30.
The print head 10 and the optical pickup 30 can be integrally moved when the arm 20 is in the groove 32, and when the arm 20 is removed from the groove 32. The print head 10 and the optical pickup 30 can be separated.

That is, as shown in FIG.
When the optical pickup 30 and the optical pickup 30 are positioned on the outer peripheral side of the optical disk, the detaching solenoid 23 presses the arm 20 so that the arm 20 slides, and the distal end portion 20 a is moved from the groove 32 of the optical pickup 30. Come off. Thereby, the print head 10 and the optical pickup 30
And leave.

When the optical pickup 30 not connected to the print head 10 is located on the outer peripheral side of the optical disk, the mounting solenoid 24 presses the arm 20 so that the arm 20 slides. The tip portion 20a enters the groove 32 of the optical pickup 30. Thus, the print head 10 and the optical pickup 30 are integrally connected.

FIG. 10 shows Embodiment 4 of the present invention.
FIG. 2 is a block diagram illustrating a schematic configuration of a drive device including a label printing unit. In the fourth embodiment, as shown in FIG. 10, a microprocessor (CPU), a semiconductor R
Circuits such as an AM, a semiconductor ROM, a seek control circuit, a rotation control circuit, a buffer manager circuit, a host interface circuit, and a loading control circuit can be shared. Therefore, a drive device having a low-cost printing function and an information recording / reproducing function of an optical disk can be realized.

FIG. 11 is a diagram showing the relationship between each mechanism and a circuit that controls them. As in the related art, the general configuration of the optical pickup 30 includes a semiconductor laser as a light source, an objective lens for condensing a light beam emitted therefrom to form a light spot on an optical disk, and an objective lens for reflecting light from the optical disk. And a light receiving element to be picked up and detected.

In order for an optical spot to follow an information track recorded on an optical disk, a CD-R / RW drive generally has a tracking error detecting means such as a DPP method. The light receiving element detects a tracking error signal therefor.

As described above, the encoder detecting circuit for detecting the slit of the encoder plate added to the spindle motor 4 (see FIG. 4) by the sensor, and the optical disk by detecting the one having a large slit width from the detection signal. A one-round, one-pulse detection circuit for extracting one signal per rotation and a speed detection circuit for detecting a rotation speed from a fine slit are provided.

As described above, in order to realize an inexpensive label printing means, a mechanism or a circuit used as a member constituting an existing optical disk drive device is used. As a result, at present, inexpensive CD-ROM mechanism units are currently in circulation, and if these members are used in common, a drive device having cheap label printing means can be realized.

Here, printing performed on an optical disk by the print head of the present invention will be described. Since the optical disk on which printing is performed by the print head is rotated by the spindle motor, the first method for generating information when performing printing along a spiral is described below, in which the rotation of the optical disk is performed at a constant angular velocity ω. .

Now, it is assumed that the printing position moves at a pitch w after one rotation, and the print head moves outward from the center of the optical disk at a constant speed V. The time T for one rotation is

[0069]

T = 2π / ω Therefore,

[0070]

V = w / T Here, assuming that the movement (seek) position of the print head for printing r (the print radius position on the optical disk) and r0 are the initial positions,

[0071]

[Mathematical formula-see original document] r = r0 + V.times.t.theta.

[0072]

[Mathematical formula-see original document] θ = ωt Let the print linear density d along the rotational scan be constant.

Here, the relationship between the linear density d and the time t is obtained.

[0074]

X = rcos θ = (r0 + V × t) cos (ωt)

[0075]

Y = rsinθ = (r0 + V × t) sin (ωt) From this, the printing time interval τ for obtaining the linear density d at the time t is obtained.

For this purpose, the distance τ that the optical disk passes over the print head from time t to t + τ is obtained.

[0077]

Dx / dt = Vcos (ωt) −ω (r0 + V
× t) sin (ωt) dy / dt = Vsin (ωt) + ω (r0 + V × t) c
os (ωt) (dx / dt) 2+ (dy / dt) 2 = V2 + ω2 (r
0 + V × t) 2 Therefore,

[0078]

８t + τt [｛V2 + ω2 (r0 + V × t)]
2｝ 1/2] dt = d τ is a printing interval at time t for keeping the linear density d constant.

Even if τ = f (t) is obtained, it is difficult to actually control this time interval. Therefore, for simplicity, assuming that the trajectory of one rotation is a circle as approximation, the following (Equation 9) is obtained.

[0080]

D = rωτ τ = d / (rω) That is, print information may be generated at time intervals inversely proportional to the position r of the print head.

It is desired to generate print position control and print information in synchronization with the basic clock. The rotation system may be controlled at a constant speed by the PLL in synchronization with the reference clock generated from the basic clock.

Further, the uniform movement of the print head can be similarly controlled. The print data can be accessed from the position information r and the rotation angle θ information. Find the relationship between τ and the basic clock.

[0083]

Τ = d / (rω) = d / {(r0 + V × t) ω} The print generation frequency fp is

[0084]

Fp = 1 / τ = (r0 + V × t) ω / d Therefore, it is necessary to form a signal generator that generates a print generation frequency proportional to the elapsed time t of the print time.

The timing of print generation is fp.
The print information generates information based on addresses x and y based on r and θ at that time. This is because when print information is generated based on fp, the accumulated error increases.

Further, the speed can be increased by arranging a plurality of print heads in the radial direction of the disk and printing simultaneously. This case will be described.

Information for printing by each print head is as follows.
The information is generated at the timing of (Equation 11), and the occurrence information is determined from the addresses x and y obtained by (Equation 5) and (Equation 6) from the position on the optical disk of each print head. However, since the initial position r0 of each print head is individually different, the fp of each print head is different.

Secondly, a method of generating information for performing printing along a spiral will be described below with reference to a method of keeping the linear velocity of an optical disk constant.

The relationship between the rotation speed and the seek speed is as follows.

[0090]

L = rθ Lv = dl / dt = θ · dr / dt + rdθ / dt If the change in the first term of the linear velocity Lv is small,

[0091]

Lv = rdθ / dt

The print frequency fpl of the print head is

[0093]

Fpl = Lv / d Assuming that the change in speed and r in one rotation is small,

[0094]

Lv = rω (r) The time T (r) required for one rotation at the position of radius r is

[0095]

T (r) = 2πr / Lv = 2π / ω (r) where ω (r) = Lv / r.

Assuming that the moving distance of the seek system in one rotation of the optical disk is w, the seek speed V (r) of the head is:

[0097]

## EQU17 ## dr / dt = V (r) = w / T (r) = w.
Lv / (2πr) From this

[0098]

R2 = (w · Lv / π) t + r02 where r0 is a seek start position.

Therefore, the rotational angular velocity ω (t) and the rotational angle θ
(T)

[0100]

Ω (t) = 1 / [｛w / (πLv)｝ t + 1
/ Ω02] 1/2 where ω0 = Lv / r0 (rotational angular velocity at initial position r0) θ (t) = (2πLv / w) [｛w / (πLv)｝ t +
1 / ω02] 1/2 seek speed V (t) and seek position r (t)

[0101]

V (t) = (w / 2π) · ω (t) r (t) = [｛wLv / π｝ t + r02] 1/2

Further, a basic clock for speed control in the rotation system and the seek system by the PLL is recorded in the ROM table according to (Equation 19) and (Equation 20) basic clock generation information and reference signal information for analog speed control. . Furthermore, since the seek system does not immediately reach the target speed, information is added assuming the start. Further, the rotation system generates reference information for rotating at the rotational angular velocity ω (r0) until printing is started.

The generation of print information is based on the position information r,
The address information x and y are generated based on θ. That is,
Printing is performed at a constant print timing based on (Equation 14), and print information is extracted from addresses x and y corresponding to the position information r and θ at that time.

Next, a third method of generating information in the case of printing by combining concentric circles will be described below, in which the rotation of the optical disk is set to a constant angular velocity ω.

After the print information is generated, the print head performs one rotation and prints, and then the print head seeks (moves) and positions at the pitch w. After the print head is settled, the next print is started.

The time T for one rotation is

[0107]

T = 2π / ω The angle position θ to be printed on the optical disk is

[0108]

[Mathematical formula-see original document] θ = ωt Let the print linear density d along the rotational scan be constant.

When the relation between d and t is obtained,

[0110]

X = rcos θ = rcos (ωt)

[0111]

Y = rsin θ = rsin (ωt) τ is a printing interval at a position r for keeping the linear density d constant.

[0112]

D = rωτ τ = d / (rω)

That is, print data may be generated at time intervals inversely proportional to the position r of the print head. Since all the print information is generated in synchronization with the basic clock, the rotation system controls the PLL at a constant speed in synchronization with the reference clock generated from the basic clock.

The print generation frequency fp for accessing the print information from the position information r and the information of the rotation angle θ is:

[0115]

Fp = 1 / τ = rω / d Therefore, the print generation frequency fp proportional to the print position r
Is formed. The timing of print generation is fp, and print information is generated from addresses x and y based on r and θ at that time.

Finally, a fourth method for generating information for printing by combining concentric circles and a method for keeping the linear velocity of the optical disk constant will be described below.

When the printing time interval is constant,

[0118]

[Equation 27] l = rθ

[0119]

Lv = dl / dt = r · dθ / dt = r · ω (r) The print frequency fpl of the print head is

[0120]

Fpl = Lv / d (Equation 28) The optical disk rotation angular velocity ω at the position r
(R)

[0121]

Ω (r) = Lv / r

The basic clock frequency of the rotation system by the PLL may be obtained by generating a basic clock inversely proportional to the radius r from (Equation 30).

The print information generates address information x and y based on the position information r and θ. That is, (Equation 29)
Is printed at a fixed print timing based on the position information r, θ corresponding to the position information r, θ at that time.
Take out from.

Next, a description will be given of a process of generating information for printing according to the fifth embodiment of the present invention. FIG. 12 is a diagram showing the relationship between the image to be printed on the optical disk and the address on the image memory. (Rn, θn) corresponding to the n-th position (r, θ) of the dot information to be printed is converted by (Equation 5), (Equation 6) or (Equation 23), (Equation 24), for example, rounded off. And rounded address (xn, y
n), the print image memory is accessed to extract print data. At the time of printing, print information may be generated according to the position (r, θ) through which the optical disk passes through each nozzle.

Normally, the address obtained when the (r, θ) address coordinate is converted to the (x, y) coordinate as described above is rounded or the like and converted to an integer to obtain a memory address where the print image is located. In order to improve the print quality, if the corresponding (x, y) print address converted is in an intermediate state of the address where the original print information is present (such as a state where the converted address has a decimal point), the print information The print information is generated by an algorithm that interpolates the print information.

Further, the generation of this information may be executed by a computer before printing, and the print information in the order of printing may be transferred to the print control device. In this case, the image information may be converted by a computer (a personal computer or the like) to generate data to be sequentially printed on each nozzle. In order to generate print data in accordance with the position (r, θ) in the order in which the print information is printed on the computer side, it is better to convert the (r, θ) address coordinates into (x, y) coordinates. The circuit of the system is simplified.

A control device for performing this printing embeds a synchronization code in the print information in order to receive the print information correctly and to print it on the optical disk with high accuracy in synchronization with the print start signal St and to reduce the transfer information ( See FIG. 13).

When the data from the print information after the synchronization code to the next synchronization code is received, there is no need to transfer any more data. For example, continuous print information is divided in units of words, and one bit for synchronization determination is added thereto and transferred.
The synchronization code can be detected by determining the added one bit. Also, a code of a word representing the head is inserted so that the printing apparatus can determine the head of the print information.

Although not shown, if the information of the address position r is inserted immediately after the synchronization code, there is no need to send the data of the position r having no image. Further, if the computer records after converting the format of FIG. 13, the memory consumption in the computer can be reduced.

Here, FIG. 14 is a block diagram of a control circuit for performing printing with a constant linear velocity method. In this method, a rotary motor is provided with an encoder that generates many pulses in one rotation and a detector that generates a signal St indicating a print start position (angle) for one rotation (rotation control system). A seek encoder for detecting the position of the print head is also provided.
A detector indicating the seek start position Ss is also provided (seek control system).

First, the rotation control system of the optical disk includes a PLL control system (phase comparator + phase comparator) for comparing the phase of the encoder pulse output with the pulse output from the counter or ROM.
DA based on a rotational angular velocity signal obtained by detecting the back electromotive force of the charge pump + loop filter 45 and the rotary motor and speed reference information output from the ROM.
It comprises a speed control system 46 for comparing with the converted reference signal. Then, the sum of the output of the PLL control system 45 and the output of the speed control system 46 is used to drive the motor driver circuit 47 (in FIG. 14, a phase compensation circuit is not shown. Sometimes needed). A seek control system has a similar configuration.

Information for generating reference signals for the rotation control system and the seek control system is recorded in the ROM. ROM for rotating the rotation motor according to the rotation angle θ (t) of (Equation 19)
Is allocated to the generation of the PLL reference signal pulse. At this time, the address of the ROM is sequentially designated by the address counter so that a continuous "1" and "0" as shown in FIG. 15 are output so that the reference pulse can be controlled by comparing with the rotation angle output of the encoder. Generated. By controlling according to this reference pulse,
Information is stored in the ROM so that the rotation can be controlled in accordance with the rotation angle θ (t) in (Equation 19).

Similarly, the seek control PLL reference signal generation bit string in the ROM contains information that enables the seek system to operate in accordance with the seek position r (t) of (Equation 20).
However, as shown in FIG. 16, since the seek system does not rise immediately, it is started from a position before the position r0.

Therefore, the data of the trajectory r rising up to the position r0 is stored in the address portion at the preceding stage of the ROM.
After the position r0, a bit string according to the seek position r (t) of (Equation 20) is entered. The reference signal information that rotates at the rotation speed at the position r0 is stored in the rotation system control PLL reference signal generation bit string until the seek starts and reaches r0. After the address corresponding to the position r0, a bit string according to the seek position r (t) of (Equation 20) is inserted. That is, the rotation system is ready to rise immediately from the position r0.

The speed reference word information of the rotary system and the seek system record speed reference signal generation information for comparison with a speed signal detected from the back electromotive force of the rotary motor.
By subjecting this output to DA conversion, a speed reference signal can be generated. After the ROM address corresponding to the position r0, the rotational angular velocity ω (t) of (Equation 19) or (Equation 2)
Information corresponding to the seek speed V (t) of 0) is recorded. Before the address corresponding to the position r0, the PLL
The speed information in the content described in the reference signal generation is recorded.

Next, an operation sequence of the control circuit shown in FIG. 14 will be described. First, when the power is turned on, the controller 40 initializes a counter, a flip-flop (D-FF), an address counter, and the like by a clear signal CR.
The motor driver circuit 47 of the rotation control system and the seek control system is disabled. Then, in order to start the printing operation, the controller 40 enables the motor driver circuit 47 of the rotation control system. At this time, the output of the oscillator is frequency-divided by a counter (for example, a 1-bit counter) to output a reference pulse that rotates at the rotational angular velocity at the position r0. At this time, the address 0 is designated in the ROM, and the speed reference information corresponding to the position r0 is also generated as the rotation speed reference information. The controller detects that the rotation motor has risen to the rotation angular velocity ω0 based on the output pulse width of the encoder pulse detector.

Then, a start signal STR is output.
When the output CRY of the counter becomes "high" and the clock CK from the oscillator 48 arrives, the flip-flop (D-
FF) is set. At this time, the address counter is enabled, and the gate circuit is closed so that the counter output CRY does not go to the phase comparator of the PLL control system 45 of the rotation control system. Then, the address counter is incremented from the next clock CK, the ROM address is designated by this output, and the information serving as the reference signal of the rotation control system and the seek control system is output.

The controller 40 counts the encoder pulse for seek from the seek start position Ss, and calculates the position r0.
Printing is started by detecting. Printing is St
The print information is printed in synchronization with the signal and the clock CK generated by the oscillator 48 obtained by (Expression 14) (the print information is output so as to correspond to the print linear density d). When printing is completed, the controller 40
Disables the motor driver circuit 47, returns the seek system to the start position, and then disables the motor driver circuit 47 'of the seek rotary motor.

When the rotation of the optical disk is rotated at a constant angular velocity ω and printing is performed along the spiral on the optical disk, the seek position moves as shown in (Equation 3). The constant rotation control can be realized by supplying a pulse having a rotational angular velocity ω to the phase comparator as a reference signal and supplying a constant voltage as a reference voltage of the speed detection signal in the rotation control system as shown in FIG. However, in this case, since the rotation is a constant rotation, a rotation angle encoder is not required, and the St pulse that generates one signal per rotation of the optical disk is output to the PLL control system 45.
And can be used as a reference signal for the phase comparator. That is, the steady-state error of the rotation speed control is reduced by the PLL control system 45, and the normal stable speed control is controlled by the speed control system 46 using the speed detection signal based on the back electromotive force of the rotary motor.

In the seek control, the speed V is set at the print start position r0.
What is necessary is just to have a run distance so that it may become. The control system may be controlled by giving a constant reference signal in the seek control system as shown in FIG. However, a detector capable of detecting the print start position r0 is provided in the seek system. The print generation frequency fp is given by (Equation 11). In other words, a circuit configuration that increases the frequency in proportion to time is required. FIG. 17 shows an example.

From the equation (11), the following modification can be made.

[0142]

Fp = ｛(kfo + kωV / d · t) / kfo｝ fo = ｛(M1 + N) / M2｝ fo (where fo = r0ω / d) k is M1, N, M2 and fp so that a circuit can be configured. Is chosen to be a natural number. The number of digits is determined from the required print quality. The count of the counter T that determines the timing for changing fp is also determined according to the required print quality.

In FIG. 17, the counter M1 = kfo and the total count value L by the programmable counter
= M1 + N generates a pulse frequency L times the frequency fo, and the counter M2 = kfo sets the pulse frequency L times fo to 1 / M2. However, the count value N of the programmable counter is set by the incremental counter N. The programmable counter is counted by the set count value N. Thus, the print timing frequency fo is generated.

When the controller 40 reaches the print start position r0 after the start of the seek system for moving the print head, the controller 40 cancels the clear signal CR sent to the incremental counter and the programmable counter. From this time, the signal fp according to (Equation 31) is output. The controller 40 outputs one shot per rotation of the optical disc St.
The print data is output in synchronization with the pulse. The synchronization between the St pulse and the print data is performed every rotation so that an accumulated error in the print position does not occur.

When printing is performed by a combination of concentric circles as shown in FIG. 18 and printing is performed by rotating the optical disk at a constant rotation angular velocity ω, the rotation is controlled to the above-described constant rotation in a rotation control system as shown in FIG. Control. The rotational angular velocity ω is determined by the print generation frequency fp and the print linear density d defined by the characteristics of the print head. Therefore, the printing frequency becomes maximum at the outermost circumference according to (Equation 26).
The rotational angular velocity ω is determined from the radius r of the optical disk at that time. The position of the print head is detected by a seek encoder based on a seek start position detector. The seek control system feeds back this signal to perform positioning control. The print generation frequency fp that determines the output timing of the print information is determined by (Equation 26). Initial position r0
If the printing frequency at is set to fp0, the following equation is established.

[0146]

Fp = ｛ar / (a · r0)｝ fp0 where a is a value obtained by converting ar or a · r0 into a natural number, and the value is determined according to the target precision. In the block diagram of the circuit for generating the timing fp for printing shown in FIG.
The controller 40 sets a value ar corresponding to the print head stop position r in the register ar. The programmable counter 49 counts based on this value. As a result, the print generation frequency fp is obtained.

When the controller 40 prints one rotation of the optical disk at the printing position r, the print head seeks and settles, and when the St pulse output once per rotation of the optical disk arrives, the controller 40 generates the signal shown in FIG. The print data is output in synchronization with the pulse fp.

When printing is performed by a combination of concentric circles as in the optical disk of FIG. 18, the rotation of the optical disk is made variable according to the position of the print head, and the linear velocity of the disk surface passing under the print head is almost constant. Is set to the disk rotation speed according to (Equation 30). For this purpose, a rotation control system as shown in FIG. 14 is used. Assuming that the number of pulses per rotation of the rotation angle encoder is Pn, (Equation 30) is as follows.

[0149]

Pn · f = {b · r0 / (b · r)｝ Pn · fo where b is a value that converts br0 and br into natural numbers, and fo is the rotational speed f at the position r0. is there. Pn
f is a target rotation angle encoder output pulse frequency at the position r. Therefore, the rotation system PLL shown in FIG.
As shown in the block diagram of the control reference signal pulse generating circuit, a reference signal pulse of the PLL control system 45 of the rotating system is formed.

When the print head is at the position r, the programmable counter 49 may be set to the count number br. The reference signal to be compared with the detection signal of the rotation speed based on the back electromotive force of the rotation motor is obtained by the controller outputting data corresponding to (Equation 30) and DA-converting the output. This concentric printing can be realized with Pn = 1 since the optical disk is rotating at a specified number of rotations at each printing position.

The linear velocity Lv is determined by the print frequency fpl and the print linear density d defined by the characteristics of the print head. The position of the print head is detected by a seek encoder based on a seek start position detector. The seek control system feeds back this signal to perform positioning control. The print frequency fpl that determines the output timing of the print information is determined by (Equation 29).

When printing one rotation of the optical disk at the printing position r, the controller 40 seeks and sets the print head, and after setting at the rotation speed of the optical disk at the printing position r, the controller 40 sets one rotation per optical disk. When the output St pulse arrives, the printing timing f in FIG.
As shown in the block diagram of the circuit for generating pl and fpl (n), print data is output in synchronization with the pulse fpl generated and each fpl (n).

Next, a case will be described in which printing is performed using a signal obtained from a drive device without using information recorded on an optical disk described later.

In this case, a linear encoder or an encoder configured to have a similar effect is used for detecting the seek position. In the method of keeping the rotation speed of the optical disc constant, the rotation angle encoder for high-precision rotation control becomes costly. Therefore, a steady error is generated by the start signal St that generates a pulse once per rotation as described above. If the speed control for correction is performed, stable constant rotation control can be obtained.

In the constant linear velocity system, it is necessary to provide a rotation angle encoder for generating a large number of pulses per rotation of the optical disk or an encoder configured to obtain the same effect in order to improve the accuracy. There is.

In the case where printing is performed while keeping the rotational angular velocity of the optical disk constant in a spiral shape, the rotational angular velocity ω is determined from (Equation 9) in consideration of the print cycle of the outermost circumference, taking into account the print speed capability of the print head. A reference signal for the rotation control system is generated so as to achieve this rotation. Then, for example, when printing from the inner circumference side, the seek starts before the printing start position r0,
At the position of r0, a reference signal of the seek control system is generated such that the seek speed V is based on (Equation 2).

When printing with the linear velocity of the optical disk constant in a spiral shape, as described above, the basic clock generation information and the analog speed are stored in the ROM table for generating the reference signals for the rotation control and the seek control. The control reference signal information is recorded according to (Equation 19) and (Equation 20).

Since the seek system does not immediately reach the target speed, information assuming a rise is added, and the rotation system generates reference information for rotating at the rotational angular speed ω (r0) until printing is started.

Next, when printing is performed concentrically at a constant rotational angular velocity of the optical disk, the printing cycle of the outermost circumference is taken into account in consideration of the printing speed capability of the print head (Equation 25).
The rotational angular velocity ω is determined more. The seek position is detected for each pitch w by detecting the position with a linear encoder or the like.

When printing is performed concentrically at a constant linear velocity of the optical disk, a reference signal for the rotational angular velocity control system is generated from (Equation 30) based on the position of r for each pitch w.

Further, a low-cost encoder provided with a transmission mechanism (gear or the like) may be used as the encoder for detecting the rotation angle of the optical disk and the seek position. However, a lower price can be realized by attaching such a mechanism to each mechanism in the current optical disk drive device.

As described above, the four methods for printing without using the optical pickup for recording and reproducing the optical disk have been described. In other words, there are a method of printing in a spiral shape and a method of printing concentrically, and there are a constant disk rotation angle method and a constant linear velocity method, respectively.

A case in which printing is performed using information recorded on an optical disk according to Embodiment 6 of the present invention will be described. Here, a case in which a print head and an optical pickup are integrally formed in a seek mechanism is taken as an example. The position information r and θ are detected from the track or address information of the optical disk. In the case of a CD-R / RW, it is detected from the tracking error signal and the address information in the wobble.

The track pitch of the optical disk is CD-R
/ RW is 1.6 μm and the print quality is 200 dp
In the case of i, the print dot pitch is about 120 μm.
When the laser beam from the optical pickup makes one rotation while tracking the recording / reproducing information track on the optical disk, the seek system position moves only 1.6 μm. However, the total disk eccentricity including the eccentricity of the rotation mechanism has a value of 100 μm or more. A case in which information is seamlessly printed from the inner circumference to the outer circumference using the information on the optical disk in such a situation will be specifically described. When printing is performed, printing may be performed from the outer peripheral side to the inner peripheral side.

When printing is performed concentrically at a constant disk linear velocity, the print quality is better than in a method of performing a spiral. First, before starting printing, as a seek operation to a track corresponding to a print start position, the print head is made to wait while repeating tracking and track jumping operations on a target track. The printing start position is detected based on the address information of the optical disk. For example, in an optical disk such as a CD-R or a CD-RW, an address is detected from a wobble signal.

When the optical disk makes one rotation, the seek position moves by 1.6 μm, so that the track jumps in the direction of returning one track during the printing standby. One rotation per optical disc
Printing is started by a start signal St that generates a pulse. If the rotation of the optical disk can be controlled with high accuracy, printing may be performed at a print timing according to (Equation 29).

When printing for one rotation is completed, seek is performed next for the distance w, and then, while repeating tracking and track jumping on the target track, the apparatus waits, and starts printing with the start signal St. The seek position is detected based on the address information of the optical disk.
Thereafter, this operation may be repeated to print the print area. If the rotation speed of the optical disk can be accurately obtained in accordance with (Equation 30), the image quality will be high.

The generation of a reference signal for high-precision rotation control and a high-precision rotation angle encoder increase the cost. In addition, an error occurs in the seek position r corresponding to the disk address due to an error when the optical disk is placed on the turntable connected to the rotary motor and an eccentricity of the disk.
Further, the address and the position r of the stamper used in manufacturing the optical disk differ from each other due to the manufacturing variation of the track pitch and the address information writing position for each stamper (the disk standard allows the variation). Naturally, it will vary even when the optical disk is used. CD-R / R
In W (CD-R and CD-RW), the track pitch and the wobble period vary for each stamper.

That is, the above (Equation 29) and (Equation 30)
Since an error occurs at the position r in the above, an error occurs in the rotation speed and the printing frequency, and the printing quality deteriorates. Therefore, the control of the number of rotations of the optical disk, the printing timing, and the seek position are all performed on the disk by the address information detected by the optical pickup, the tracking error signal, and the synchronization signal. In the case of CD-R / RW, a tracking error signal obtained from the wobble signal and address information obtained by demodulating the wobble signal are used,
The wobble period Wb of this CD-R / RW is about 60 μm.

In the case where the rotation is controlled by the wobble signal while staying at a fixed seek position, the optical pickup performs a track jump operation, so that the wobble signal is disturbed for a certain period of time, and the joint (track jump position) is not moved. There is a problem that the phases of the wobble periods are not aligned. As a measure against the former, the phase comparison of the PLL during the track jump is stopped, and the state immediately before the stop is maintained. As a countermeasure for the latter, a cycle M (M: natural number) times the wobble cycle Wb is used as a feedback signal to reduce the influence of the phase shift at the joint.

Printing is started after the rotation of the optical disk is set to the target number of rotations. The track jump is performed at an angular position at which the influence of the fluctuation of the rotation angular velocity of the track jump is eliminated when the print start rotation angle St is reached after the track jump. When printing is started, track jump is not performed during the printing period of one rotation of the optical disk. If printing is performed at every natural number multiple of the wobble period Wb, dots with a constant pitch can be obtained in the optical disc.

However, since the wobble signal at each seek position at the moment when the start signal St indicating the start position in the rotation direction is output has a phase difference, a printing shift occurs between the printed concentric circles.

For this reason, for the phase difference between concentric circles, the wobble frequency fw = Lv / Wb is multiplied by N (N: natural number)
To reduce errors. The frequency fs (0) and the frequency fs (n) are counted by using the multiplied frequencies fs (0) and fs (n) so that the linear density d is obtained after the start signal St arrives. Clock fpi for obtaining print timing as Nd
(0) = fs (0) / Nd = Lv / d and fpi (n) =
generate fs (n) / Nd = Lv / d. However, as described above, the natural number N is selected in order to reduce the variation in the phase difference of the wobble between the printing start angle position St and each printing position.

Next, when printing is performed at a constant disk rotation speed concentrically, this method can make the printing speed higher than the above method. This is because there is no need to shift the disk.

First, similarly to the above, before printing is started, the print head is sought to the printing start position, and the print head waits while repeating tracking and track jump operations on the target track. The printing start position is detected based on the address information of the optical disk. In an optical disc such as a CD-R or CD-RW, an address is detected from a wobble signal. When the optical disk makes one rotation, the seek position moves by 1.6 μm, so that the track jumps in the backward direction by one track during the printing standby. Printing is started by a start signal St that generates one pulse for one rotation of the optical disk.

If the rotation of the optical disk can be controlled with high precision, printing should be performed at the printing timing according to (Equation 26). Then, when printing for one rotation is completed, next seek is performed by the distance w, and the robot waits while tracking and jumping on the target track again, and starts printing by the start signal St. The seek position is detected based on the address information of the optical disk. Thereafter, this operation may be repeated to print the print area.

A rotation angle encoder for high-precision rotation control becomes costly. If speed control for correcting a steady-state error is performed by the start signal St, stable constant rotation control can be obtained.

The seek position r corresponding to the disk address is determined by the error when the optical disk is placed on the turntable connected to the rotary motor and the disk eccentricity.
Error occurs. Furthermore, the address and position r of the stamper used in manufacturing the disc are different for each stamper due to the manufacturing variation of the track pitch and the address information writing position (the disc standard allows the variation). Naturally, it also varies when it is made into a disc.

That is, CD-R / RW (CD-R and CD
In (−RW), the track pitch and the wobble cycle vary for each stamper. Since an error occurs at the position r in the above (Equation 26), an error occurs in the print frequency, and the print quality deteriorates.

Therefore, the rotational angular velocity of the optical disk is corrected. The number of wobbles within a predetermined time at a position r0 on the optical disk is counted, and the reference signal of the rotation control system of the optical disk is corrected so that the counted value falls within a specified range. Then, all of the print timing and seek position control are performed by the address information detected by the optical pickup, the tracking error signal, and the synchronization signal.
In the case of CD-R / RW, a tracking error signal obtained from a wobble signal and address information obtained by demodulating the wobble signal are used.

In this method in which the number of rotations of the optical disk is constant, the printing speed is increased because there is no speed change in the rotation of the optical disk.

When printing is started, track jump is not performed during the printing period of one rotation of the optical disk. If printing is performed at every natural number times the wobble period Wb, dots with a constant pitch can be obtained in the optical disk. However, since the wobble signal at each seek position at the moment when the start signal St indicating the start position in the rotation direction is output has a phase difference, a printing shift occurs between concentric circles printed. For this reason, for the phase difference between concentric circles, the wobble frequency fw (r) =
The error is reduced by multiplying rω / Wb by N (N: natural number).

The frequency fs (r
0) and the fs (r) clock so that the linear density d is obtained after the start signal St arrives.
0) or fs (r) clock is a fixed count Nd, and a clock fpa (r0) =
N · fw (r0) / Nd = r0 · ω / d and fpa (r)
= N · fw (r) / Nd = rω / d. However, as described above, the natural number N is selected in order to reduce the variation in the phase difference between the wobble signal at the printing start angle position St and each printing position. This method naturally has a larger variable range of the printing frequency than the above-described method.

Next, the calculation of the angle θ for generating print information is as follows.

[0185]

## EQU34 ## where P (n) is the number of counts of the clock fs from St, where .theta. = 1 / r = d.times.P (n) / (r.Nd). The print information is generated every count Nd.

Further, when there is track eccentricity on the optical disc, the objective lens of the optical pickup is controlled so as to follow the track. At this time, if the eccentricity of the track is large, the movement of the objective lens alone cannot follow the track in the radial direction, so that a seek mechanism for moving the entire optical pickup also works. This is known as two-stage servo control.

The movement of the seek mechanism also moves the print head, and the error ε = Tr0−Trs between the movement amount Tr0 and the movement amount Trs of the objective lens with respect to the base holding the seek mechanism is equal to the radius of the optical disk. This causes the printing position to shift in the direction. Therefore, if the error ε is made as small as possible, the print quality is improved. In other words, when printing, if the number of rotations of the disk is lower than when recording and reproducing information on the optical disk, the error ε becomes smaller.

FIG. 22 is a diagram showing a wobble land groove indicating information recorded on an optical disk. This is a guide groove (groove) for recording / reproducing an optical disk with a signal detected by the optical pickup. The groove is formed to meander (wobble) as shown in FIG. The wobble is modulated, and by demodulating the wobble, the address information on the optical disk can be detected and used for positioning control.

The carrier signal of the modulated signal is demodulated and used as a timing signal for printing or a detection signal for controlling the rotational speed.

FIG. 23 shows an optical disk 2 and a print head 1.
FIG. 2 is a block diagram showing a configuration example of an optical pickup 30, an optical pickup 30, a seek mechanism, a rotation motor (spindle motor 4), and a pulse St detector that indicates a printing start angle in a rotation direction that occurs once per rotation. It can be seen that the print head 10 and the optical pickup 30 are integrated in the seek direction.
FIG. 24 is a diagram showing an analog signal detected from the optical pickup. An Rf signal detected from a mark recorded on the optical disc, a focus error signal indicating a focus error state on the recording / reproducing surface of the light beam, a tracking error signal indicating deviation of the light beam from the track,
Then, a wobble detection signal is output.

Here, a case where printing is performed concentrically with the disk linear velocity substantially constant will be described. In FIG. 25, the controller 40 sends the rotation speed information at the target position to the DA converter 41. At this time, the switch SW is off.
Then, the switch is turned on when the seek system reaches near the target position. As a result, the control of the PLL control system 45 is performed, and the rotary motor rotates at the target speed. Then, before the St signal arrives, the track jumps and waits for the start of printing. When a track jump is performed, the controller holds the output of the loop filter by the sample and hold circuit. When the track jump operation is settled, the controller 40 stops the sample and hold operation, and causes the output of the loop filter to pass through the sample and hold circuit. In this way, the robot stands by at the target position.

FIG. 26 is a block diagram of a circuit for generating the timings fpi (0) and fpi (n) for printing from the wobble signal. This concept is similar to that described with reference to FIG. The print timing of the print nozzle n is determined by the nozzle position r and the nozzle position r0 on the innermost circumference.

Next, a case where printing is performed concentrically at a constant disk rotation speed will be described. The constant rotation of the optical disk is controlled by the method already shown by the St signal and the speed signal detected by the motor back electromotive force. The print timing signal is generated by a circuit similar to that described with reference to FIG.

FIG. 27 is a diagram showing an example of a print area on an optical disk according to the seventh embodiment of the present invention. The correspondence between the information recording / reproducing area on the same optical disk (FIG. 27A) and the example of the print area on the printing surface (FIGS. 27B and 27C) is shown. If such a correspondence is determined in advance, when the writing area for certain information is filled, it is automatically printed so that the contents can be visually checked on the optical disk, and a label for organization is added later. Without having to organize
The contents in the optical disk can be easily searched.
As the information to be printed, typically, a date, terms used most frequently in the area, a leading content, and the like are entered. Also,
If the printing is not performed automatically, the user should be able to create the print content.

In the seventh embodiment, either the inner side or the outer side of the optical disk may be printed.

Further, the present invention having the information recording / reproducing function and the label printing function of the optical disk has the following convenience. That is, it is possible to set a mode in which the index can be automatically printed on the optical disk without the user's awareness.

As a removable storage medium, for example, in a flexible (floppy (registered trademark)) disk or the like, after recording data, a user attaches a label and records an index. Many users own floppy disks without performing such troublesome and complicated work. In such a user, when trying to use a storage medium on which necessary information is recorded, the user has to search for the necessary storage medium depending on the recording, and it takes time to find it. In addition, when a device dedicated to disk label printing is used, there is a possibility that a person once intervenes and forgets to print the index.

In the present invention, such an event does not occur because an index indicating the content is attached before the optical disk is taken out. If the loading mechanism does not perform the unload operation of the optical disk until the printing of the index is completed, or if the information recording / reproducing area of the optical disk is divided and the print area corresponding to the divided area is determined, Even after the optical disk is once taken out, printing can be performed without double writing.

As a rule for performing printing, whether printing is to be terminated when recording of a divided area is started, or printing is terminated only when recording of a divided area is completed. Choose. Also, when using a rewritable CD-RW disc, for example,
A material (such as a rewritable recording member) capable of repeating recording and erasing of printing is applied or paper is pasted on the printing area. By doing so, the information recorded on the CD-RW changes, and the index to be printed can be changed accordingly. As a material (such as a rewritable recording member) that can repeatedly record and erase printing in the printing area, a phase change recording material or an inorganic material as described at the beginning of the description of the configuration and operation of the present invention may be used.

Further, an address fixed to a part of the optical disk is determined, and the rotation angle position of the address detector and the reference angle position generated once per rotation detected by the encoder means attached to the spindle motor unit. Then, the drive device detects the phase relationship between the two, and thereafter, printing may be performed based on the reference angular position. In other words, the drive device detects the phase difference between the position signal output from the determined rotation angle position on the optical disk and the reference angle position as a time difference, or detects the phase difference between wobbles in a track on a predetermined optical disk. The number of pulses synchronized with the information on the optical disk may be counted and checked.

Further, information (print track information and print angle information of the print area) such as where the print area is printed or how far the print area is printed is provided outside the information recording area on the optical disk, or is recorded. The location may be defined in advance and recorded. The positioning in the radial position direction may be performed by performing a known seek control in a drive device of the optical disk based on the print track information.

[0202]

As described above, according to the first aspect of the present invention,
According to the description, by having an inorganic or organic label layer on the other surface different from the one surface on which information is recorded, characters or pictures can be written with light, and when writing the label with a pen etc., the pen tip This can prevent the information recording surface of the optical disk from being damaged.

According to the second aspect of the present invention, a dye-based material is used as the organic material used for the label layer formed on the optical disc, so that when a label having a single wavelength is used, the light is printed. It is possible to improve the storability of the label printed characters while maintaining sensitivity to input.

According to the third aspect of the present invention, by using a phase change recording material as the inorganic material used for the label layer formed on the optical disk, it is possible to maintain the sensitivity to light input while preserving the characters printed on the label. In addition, in label printing, since the contrast of printed characters is obtained by the difference in the phase state of the phase change recording material, the printed characters can be rewritten a plurality of times.

According to the fourth aspect of the present invention, by adding a three-layer structure including a label layer to an ordinary optical disk, it is possible to form an optical disk in which a label print character is described. At the time of printing, focusing and tracking can be performed using lands / grooves carved in polycarbonate, and label printing can be performed effectively.

According to the fifth aspect, by changing the film thickness of the dielectric layer, it is possible to adjust the spectral reflectance of the dielectric layer film to change the character color and contrast on the label printing surface. it can.

According to the sixth aspect of the present invention, compared to the case where printing on the label printing surface of an optical disk is performed by another apparatus,
In addition to saving space for the user, recording and printing of information on the optical disk can be performed by the same device, processing for performing printing related to the recorded information is facilitated, and forgetting to print related information can be prevented.

According to the seventh to tenth aspects, the cost for realizing the printing function can be reduced, the simplification and size reduction of the apparatus can be achieved by sharing the mechanism, and the firmware can be obtained by using the same circuit. Can be shared, shortening the firmware development period and reducing the development cost.

According to the eleventh aspect, since the printing start position in the rotation direction of the optical disk can be determined with high accuracy by the slit of the encoder plate, high printing quality can be realized.

According to claims 12 to 14,
Provided with a connection part for detachably connecting the print head and the optical pickup. When not printing, the optical pickup can be moved by itself, reducing the load on the movable part and moving the optical disk in the radial direction at high speed. The operation can be easily realized by a detaching / mounting solenoid for moving the arm of the print head from the tip of the optical pickup.

[0211] According to claims 15 and 16,
Even if there is a difference in the linear velocity of the optical disk among the plurality of print heads, high-quality printing can be realized by generating a print timing signal corresponding to the difference, and printing position variation due to the difference in the linear velocity is prevented. In addition, digital processing can be performed and LSI can be easily realized, and a print timing generation circuit and the like can be shared, high quality printing and simplification of the circuit can be achieved, and cost reduction can be realized.

According to claims 17 to 20,
High-precision positioning can be performed without the need for a high-precision positioning encoder and without being affected by eccentricity caused by an optical disk, or high-precision print timing generation circuit because printing is performed in synchronization with signals from the optical disk This eliminates the need for an encoder for high-precision rotation control, and realizes an inexpensive and high-quality apparatus that can control rotation stably and improve the printing accuracy in the rotation direction of the optical disk.

[0213] According to claims 21-22,
The tracking operation of the print head is performed by the signal detected from the optical pickup, the error of the print position at the time of printing can be reduced, and the print information that does not require the print quality can be printed by the user's selection, thereby improving the usability of the user. improves.

Further, according to the twenty-third aspect, it is possible to correct a printing shift caused by various causes with a simple circuit.

[0215] According to claims 24 and 25,
Since the visualized information corresponding to the information recorded on the optical disk is always printed without being aware, and because the optical disk is always printed with the visualized information related to the recorded data before being carried out of the device, It is easy to access the optical disk containing necessary information.
In a rewritable optical disk such as the one described above, even if the recorded content is changed, the visualization information can be changed together, so that it is possible to reliably access the optical disk containing the necessary information.

According to claims 26 to 29,
This has the effect that the printing start position can be ascertained when additional printing or partial overwriting is performed on the printing area on the label printing surface of the optical disc.

[Brief description of the drawings]

FIG. 1A is a partial cross-sectional view of a layer configuration of an optical disc which is a storage medium according to a first embodiment of the present invention, and FIG.
Figure shows a detailed cross section of the label layer, reflective layer, and information recording layer in the layer configuration.

FIG. 2 is an external perspective view showing an information recording / reproducing apparatus according to Embodiment 2 of the present invention.

FIG. 3 is a side view showing a portion for mounting an optical disc according to the second embodiment of the present invention;

FIG. 4 is a perspective view showing a spindle motor according to a second embodiment of the present invention.

FIG. 5 is a side view showing a print head for accessing an optical disc and a head part of an optical pickup according to a second embodiment of the present invention;

FIG. 6 is a perspective view showing a seek mechanism dedicated to a print head according to a second embodiment of the present invention.

FIG. 7 is a perspective view showing a seek mechanism shared by a print head according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing a print head and an optical pickup according to a third embodiment of the present invention.

FIG. 9 is a perspective view showing a connection portion between a print head and an optical pickup according to a third embodiment of the present invention.

FIG. 10 is a block diagram illustrating a schematic configuration of a drive device including a label printing unit according to a fourth embodiment of the present invention.

FIG. 11 is a diagram showing a relationship between each mechanism of a drive device according to a fourth embodiment of the present invention and a circuit for controlling the same.

FIG. 12 is a diagram illustrating a relationship between an image to be printed on an optical disc and an address in an image memory according to the fifth embodiment of the present invention;

FIG. 13 is a diagram showing a state in which a synchronization code is embedded in print information according to the fifth embodiment of the present invention.

FIG. 14 is a block diagram of a control circuit for printing with a constant linear velocity method according to the fifth embodiment of the present invention.

FIG. 15 is a diagram showing RO in FIG. 14 according to the fifth embodiment of the present invention;
The figure which shows the example of an output of the address counter of M

FIG. 16 is a diagram showing a waveform example for activating a seek system according to the fifth embodiment of the present invention.

FIG. 17 is a block diagram showing a circuit configuration example in which the frequency increases in proportion to time according to the fifth embodiment of the present invention;

FIG. 18 is a diagram illustrating an example of printing with a combination of concentric circles on an optical disc according to Embodiment 5 of the present invention.

FIG. 19 is a block diagram of a circuit for generating a timing fp for printing according to the fifth embodiment of the present invention.

FIG. 20 is a rotating PLL according to a fifth embodiment of the present invention.
Block diagram of a reference signal pulse generation circuit for control

FIG. 21 is a block diagram of a circuit for generating print timings fpl and fpl (n) according to the fifth embodiment of the present invention;

FIG. 22 is a diagram illustrating a wobble land groove indicating information recorded on an optical disc in Embodiment 6 of the present invention.

FIG. 23 is a block diagram illustrating a configuration example of a pulse St detector indicating a print start angle in a rotation direction generated once per rotation in the drive device according to the sixth embodiment of the present invention.

FIG. 24 is a diagram showing an analog signal detected from the optical pickup according to the sixth embodiment of the present invention.

FIG. 25 is a block diagram showing a configuration of a control circuit using a wobble signal according to the sixth embodiment of the present invention.

FIG. 26 is a block diagram of a circuit for generating timings fpi (0) and fpi (n) for printing from a wobble signal according to the sixth embodiment of the present invention.

FIG. 27 is a diagram showing an example of a print area on an optical disc according to the seventh embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 drive device 2 optical disk 3 loading tray 4 spindle motor 5 turntable 6 clamper 7 encoder plate 8a wide slit 8b narrow slit 10 print head (printing optical pickup) 11 seek mechanism 12 seek motor 13 shaft 14 first gear 15 lead screw Reference Signs List 16 Second gear 17 Seek encoder plate 18 Home position sensor 19 Projecting portion 20 Arm 20a Tip portion 23 Detachment solenoid 24 Mounting solenoid 30 Optical pickup 31 Objective lens 32 Groove 40 Controller 41 DA converter 45, 45 'PLL control System 46, 46 'Speed control system 47, 47' Motor driver circuit 48 Oscillator 49 Programmable counter

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hiroshi Koide 1-3-6 Nakamagome, Ota-ku, Tokyo F-term in Ricoh Co., Ltd. 5D029 PA02 5D090 AA01 BB20 CC20 DD03 EE20 KK13 KK15 5D117 AA02 EE07 5D121 JJ05 JJ09

Claims (29)

[Claims] 1. A storage medium having a label printing surface for printing contents related to the recorded information on another surface different from the one surface on which information is recorded, wherein the label printing surface has a layer structure, A storage medium comprising at least one label layer made of an organic material or an inorganic material. 2. The storage medium according to claim 1, wherein a coloring material is used as a material of the label layer formed in the layer structure of the label printing surface. 3. The storage medium according to claim 1, wherein a phase change recording material is used as a material of the label layer formed in the layer structure of the label printing surface. 4. The storage medium including the label printing surface has a layer structure of a polycarbonate substrate, a dielectric layer, a recording layer, a dielectric layer, a reflective layer, a dielectric layer, a label layer, a dielectric layer, and a protective layer. The storage medium according to claim 1, wherein: 5. In the layer structure of the storage medium including the label printing surface, the thickness of the dielectric layer sandwiching the label layer is changed to change the printing color on the label printing surface. The storage medium according to claim 4. 6. An information recording / reproducing apparatus for recording / reproducing information on / from a storage medium, wherein the information recording / reproducing apparatus prints on the storage medium by a label printing means provided in the apparatus main body. 7. The information recording / reproducing apparatus according to claim 6, wherein at least one of a mechanism or a circuit for realizing recording / reproducing of information on a storage medium is shared as the label printing means. 8. The information recording / reproducing apparatus according to claim 7, wherein the shared mechanism is a rotation mechanism and a loading mechanism. 9. The information recording / reproducing apparatus according to claim 7, wherein the shared mechanism is a seek mechanism for moving a print head or an optical pickup in a radial direction of the storage medium. 10. The shared circuit is at least one of a microprocessor, a semiconductor ROM, a semiconductor RAM, a buffer manager circuit, a host interface circuit, a seek control circuit, a rotation control circuit, and a loading control circuit. The information recording / reproducing apparatus according to claim 7, wherein 11. A method according to claim 6, wherein said label printing means is provided with a rotation angle reference position generating means for generating one pulse per rotation of the storage medium. An information recording / reproducing device as described in the above. 12. The label printing means according to claim 6, further comprising a print head for printing on a storage medium and an optical pickup for recording and reproducing information from the storage medium. An information recording / reproducing apparatus according to the item. 13. The label printing means further comprising a connecting means for detachably connecting a print head for printing on a storage medium and an optical pickup for recording and reproducing information from the storage medium. Item 12. The information recording / reproducing apparatus according to any one of Items 6 to 11. 14. The connecting means includes a convex portion or a concave portion provided on a print head, a concave portion or a convex portion provided on an optical pickup, and a driving means for detachably attaching the print head and the optical pickup. 14. The information recording / reproducing apparatus according to claim 13, wherein: 15. A print head comprising a plurality of print heads capable of printing simultaneously, wherein each of the print heads is disposed to be shifted in a radial direction of a rotating storage medium, and an arbitrary print head position is defined as a reference position. The print timing of each print head is printed at a print timing frequency obtained by multiplying a print timing frequency of the reference position by a ratio between the position of the print head shifted in the radial direction and the reference position. The information recording / reproducing apparatus according to any one of claims 11 to 13, wherein: 16. The information recording / reproducing apparatus according to claim 15, wherein the print head controls a delay time or an advance time of a print timing signal in accordance with a linear velocity of a storage medium at a print position. 17. At the time of printing, at least one of print head positioning, print head print timing, and disk rotation speed using information read from the storage medium.
17. The information recording / reproducing apparatus according to claim 15, wherein the information recording / reproducing apparatus controls one of them. 18. The information recording / reproducing apparatus according to claim 17, wherein information read from the storage medium is detected from wobbled lands or grooves on the information recording surface side of the storage medium. 19. The information recording / reproducing apparatus according to claim 18, wherein when performing rotation control using a wobble signal detected from the wobbled land or groove, a frequency-divided wobble signal is used. 20. The information recording / reproducing apparatus according to claim 18, wherein a multiplied wobble signal is used when generating a print timing signal using a wobble signal detected from the wobbled land or groove. . 21. The control of the disk rotation speed,
18. The information recording / reproducing apparatus according to claim 17, wherein the rotational speed during printing is lower than the rotational speed during recording or reproduction of the storage medium. 22. The label printing means includes a high-speed mode for printing at a high speed selected by a user and a low-speed mode for printing at a low speed, wherein the low-speed mode prints using information read from a storage medium. The information recording / reproducing apparatus according to any one of claims 6 to 21, wherein 23. The label printing device, wherein: a plurality of print heads are displaced in a rotation direction of the storage medium; a difference in a linear velocity at a radial position of the print head on the storage medium; The printing position shift caused by the difference in the linear velocity with respect to the storage medium is corrected by controlling the appropriate print timing signal to correct the shift of all the print positions, or controlling the print information generated according to the print timing signal. The information recording / reproducing apparatus according to any one of claims 6 to 22, wherein the misalignment of all the printing positions is corrected. 24. The information recording / reproducing apparatus according to claim 6, wherein the label printing means automatically prints the contents related to the information recorded on the storage medium. . 25. An information recording / reproducing apparatus according to claim 24, wherein the label printing means prints the contents related to the information recorded on the storage medium before discharging the storage medium out of the apparatus. apparatus. 26. An encoder provided on a spindle motor for rotating the storage medium, an address detector for detecting an arbitrarily provided address on the storage medium, and an output from the encoder and the address detector. Calculating means for calculating, from the phase relationship between the rotational angle position obtained by the address detecting means and the reference angular position obtained by the encoder means, the printing position of the label printing surface of the storage medium by the label printing means is obtained. The information recording / reproducing apparatus according to any one of claims 6 to 25, wherein: 27. A phase difference between the rotation angle position obtained by the address detection means and the reference angle position obtained by the encoder means, and the reference angle position obtained by the encoder means is obtained by the calculation means. 27. The information recording / reproducing apparatus according to claim 26, wherein printing is performed on a label printing surface of a storage medium by a label printing unit based on the phase difference. 28. A printing method according to claim 6, wherein said label printing means records printing area information to be printed on a label printing surface of the storage medium outside an information recording area of the storage medium or in a predefined recording area. 28. The information recording and reproducing apparatus according to any one of 27. 29. The print area information may be any one or more of a position printed on a label print surface of a storage medium, print track information of a print area indicating a print range, and print angle information. 29. The information recording / reproducing apparatus according to claim 28, wherein: