JPH03131873A - Image forming device - Google Patents

Abstract

PURPOSE:To accurately make image forming adjustment in a short time by handling one of image forming condition data of each of other image forming modes based on a set image forming condition data, and automatically setting the image forming condition data which is common in image formation. CONSTITUTION:A switch means 10 sets plural image-forming modes, and a shift data setting means 24 selects one of the plural image-forming modes set by the switch means 10. The setting of one of image forming condition data of the selected image forming mode handles one of image forming condition data of each of other image forming modes, and the image forming condition data which is common in image formation is automatically set. That is, one of the image forming condition data of each of other image forming modes is handled by selecting one of the plural image-forming modes, and then setting one of image forming condition data of the selected image formation mode, and the image forming condition data which is common in image formation is automatically set. Thus, image forming adjustment can be accurately made in a short time.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image forming apparatus, and in particular, when one image forming condition data is set in one image forming mode, the corresponding and common setting data for other image forming modes can be set. Imaging condition data with
The present invention relates to an image forming apparatus that includes shift data setting means that automatically sets shift data.

[Conventional technology]

Recent image forming apparatuses generally have a plurality of image forming modes, and in each image forming mode, a plurality of image forming condition data are set so that optimal image formation is performed for each component.

For example, copying machines have black-and-white copy mode, black-and-white copy mode when collecting data (a mode in which black-and-white images and color images are copied by specifying the area on the same transfer paper), achromatic black-and-white copy mode, single color copy mode), and full color copy mode. It has a plurality of copy modes such as copy mode, and the desired image formation is performed by selecting the copy mode.

When a copy mode is selected, each component (photoreceptor, charger, developer, exposure lamp, color separation filter, exposure lamp, etc. For this reason, the control circuit of the copying machine stores the optimum image forming condition data for each component, and each component is activated according to this image forming condition (cow data). do.

Therefore, during image formation adjustment work in the manufacturing process of a copying machine or during image formation adjustment work when replacing parts (for example, replacing a photoreceptor), the control circuit of the copying machine is required to perform image adjustment for each component for each copy mode. (It is necessary to input and write the cow data.

Conventional copiers can perform full-color copying for black-and-white copy mode, editing black-and-white copy mode, color-erasing black-and-white copy mode, single color copy mode, and full-color copy mode. For normal mode and photo mode, enter and write 4 pieces of image condition data for each component for a total of 8,15 cases for each color.)
is.

Furthermore, as disclosed in Japanese Patent Laid-Open No. 60-243649, the exposure amount is varied during exposure of a test chart, an image with a corresponding density is obtained, and the corresponding exposure amount is set based on the optimum image density. An image forming apparatus that can be used in this manner is disclosed.

[Problem to be solved by the invention]

In the above-mentioned conventional image forming apparatus, it is necessary to input optimal image forming condition data for each component for each copying mode, and the task of setting this image forming condition data is complicated. It took a long time.

In addition, the above-mentioned Japanese Patent Application Laid-Open No. 60-243649 discloses an image forming apparatus that can easily set the exposure amount in one copy mode, but the relationship with the exposure amount setting in other copy modes is is not disclosed at all.

An object of the present invention is to form an image in which when one image forming condition data is set in one image forming mode, corresponding and common image forming condition data in other image forming modes are automatically set. The goal is to provide equipment.

[Means to solve the problem]

The above purpose is to select one of a plurality of image forming modes and set image forming condition data for one of the selected image forming modes. Corresponding to the above image forming condition data,
This can be achieved by providing the image forming apparatus with a shift data setting means that automatically sets image forming condition data having commonality in image forming.

[Effect]

When one of a plurality of image forming modes is selected and one image forming condition data of the selected image forming mode is set, the shift data setting means is activated to set the image forming condition data of the other image forming modes. Correspondingly, image forming condition data having commonality in image forming, for example, that the color separation filters are the same, is automatically set.

In this way, the image forming condition data input work can be performed efficiently in a short time.

〔Example〕

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

FIG. 1 is an explanatory diagram showing the overall configuration of the embodiment, where 1 is a case, 2 is a document table, 3 is a scanner section, 4 is an exposure lamp, 5, 6, 7, 8 is a mirror, and 8 is a lens. , lO is a color separation filter, 11 is an image forming section, 12 is a photoreceptor, l
3Y, 13M, 13C, 138 has a developer, 1
4 is a charger, and 16 is a transfer roller.

A document placement table 2 is arranged on the upper surface of the case 1, a scanner section 3 is provided directly below the document placement table 2, and an exposure lamp 4 is provided on the scanner section 3.

Light is irradiated from the exposure lamp 4 onto the document on the document table 2, and the reflected light from the document is reflected by the mirrors 5, 6.7 provided in the scanner section 3, passes through the lens 8, and is reflected by the mirror 9. input into the color separation filter lO.

The color separation filter 10 is provided with a blue filter, a green filter, and an ND filter that transmits green and partially transmits blue and red. As the color separation filter 10, a predetermined filter is selected corresponding to a copying mode such as black-and-white copy, edited black-and-white copy, achromatic black-and-white copy, single color copy, or full color copy.

An image forming section 11 is provided below the scanner section 3 of the case 1, and this image forming section 11 is equipped with a photoreceptor 12.
Y, 13M, 13C, 138K.

A charger 14 and a cleaner 15 are provided.

The photoreceptor 12, which has been cleaned by the cleaner 15 and uniformly charged by the charger 14, is irradiated with the light that has passed through the color separation filter 10, forming a latent image on the photoreceptor 12, and the developing devices 13Y, 13M, 13C.

The latent image is visualized by 138K and is formed into a strong toner image.

The image forming section 11 is provided with a copying roller 16 in contact with the photoreceptor 1, and nine copies of paper are sent out from a paper feed tray 17 provided on the west side of one end of the case 1. The toner image is transferred onto a transfer paper by a transfer device 18 that is conveyed along a transfer roller 16 and is provided in a position facing the photoreceptor 12 .

The transfer paper on which the transferred image has been formed is transferred to the upper part of the paper feed tray 17 via a paper feed path 20 through a switching claw 19 provided opposite to the transfer roller 16. After being fed into the fixing device 21 and subjected to fixing processing, the sheet is discharged to a paper discharge tray 22 disposed near the fixing device 21.

A power supply unit 23 and a control circuit 24 are provided on the other end side of the case 1, and power is supplied from the power supply unit 23 to each part of the device.
A control circuit 24 controls the copying operation of the apparatus.

FIG. 2 is a block diagram showing the configuration of the main parts of the embodiment.
is the control circuit, 27 is the CPU, 28 is the RAM 129 is the RO
M, 30.31 is an I10 port, 32 is an operating section, 33 is a display section, and 34 is an input key.

As shown in the figure, the control circuit 24 includes a CPU 27,
RAM28, ROM29, I10 port 30°31 are provided, RAM2B and ROM29 are connected to CPU27, and CPU24 is provided with I10 port 30.31.
is connected.

An operation section 32 includes a display section 33 and an input key 34.
A display section 33 and an input key 34 are connected to the control circuit 2.
4 I10 boats 30, respectively.

When the input key 34 is operated to select a copy mode and specify various copying conditions, the copying machine operates under those conditions. The image forming apparatus is configured such that image forming condition data can be input during image forming adjustment work in the manufacturing process or during image forming adjustment work when replacing parts.

When inputting the image forming condition data by operating the input key 34,
This image forming condition data is sent to the CPU via the I10 board 30.
27, and the CPU 27 writes the data into the RAM 2B or rewrites the data in the RAM 2B.

At the time of copying, the RAM 28 and ROM are
29 is read out, and from the I10 port 31 of the control circuit 24, an exposure control signal, a charging control signal, and a developing bias control signal based on the read data are sent to the corresponding components of the copying machine. The data is input and the copying operation is performed.

Further, when a copy mode forming the control circuit 24 is selected and image forming condition data is inputted, the CPU 27 controls the control circuit 24 to correspond to the inputted image forming condition data of other copy modes and to find commonality in image forming. Imaging condition data or an approximate value thereof is calculated, and the calculated data is written into the RAM 2B.

This calculation and write operation will be specifically explained.

FIG. 3 is an explanatory diagram showing the copy mode in the embodiment and the image forming condition data of the photoconductor, charger, developer, color separation filter, and exposure lamp corresponding to each mode, and shows the exposure lamp voltages A, B. This is due to mechanical differences, and there are some differences in photoreceptor sensitivity, development efficiency, exposure optical system, etc. between these machines.

In this case, if the filter color selected in the image forming condition data of the color separation filter is regarded as a factor of commonality in image forming, and a copy mode that is blue is selected, for example, N03 (blue erase in achromatic monochrome copy mode) case) No. 9 (case Y in full color copy mode with three transfers) No. 12 (case Y in full color copy mode and transfer twice) and No. 015
(case Y in full color copy high density mode) is applicable.

Therefore, when the image forming condition data No. 9 is input to the control circuit 24, the exposure lamp voltages VA of A and B are set.

vll is VA-65V, v, -66,5V, l.

Based on this exposure lamp voltage vA, vll, NO3
Looking at the achromatic black-and-white copy mode (blue erasing), the exposure-i7 voltages VA, , V, of A and B are VA3=75v=
(Va +10)v, VB=77V=(Vm +10
．． 5) It becomes v.

Similarly, in the full color copy mode (6 times transfer Y) of N012, the exposure lamp voltage V A lt + of 8.B
v□2 is VAst =55V= (VA 10)
V.

■□! =57.5V=(Vl-9)V.

Also, full color copy of N015 high tllt mode F
(Y) (7) A, B (7) Exposure lamp voltage "AI"
S+ VII% is Vans -68V-(VA +3
) VlVats =70V= (Vl +3.5)V
becomes.

Therefore, when the exposure lamp voltages vA, 'v, are input as image forming condition data for full color copying (3 times transfer Y) of NO9, as image forming condition data of NO3 mode,
VAi=(VA+10)V.

Perform the calculation Vg3-(Vl+10)V.■■.

When the imaging condition data of Vg3 is set, the imaging condition data of vA is set to the optimum value, and VH is set to an approximate value that is 0.5 short of the optimum value.

Similarly, when inputting image forming condition data for NO9 mode, N
As image forming condition data of 012 mode, Va+z =
(Va 10) V, Vm+z = (Vw -10
) ■ If the image forming condition data of vAlt + Vll□ is set by performing the calculation, the image forming condition data of Vat* is set to the optimum value, and V□2 is set to the optimum value of 1. OV is set to an approximate value that is insufficient.

Also, when inputting image forming condition data for NO9 mode,
As image forming condition data for 15 modes, Vans - (V
If the image forming condition data of VAIS, V□, is set by performing the calculation A+3)V, Vans = (Vg +3)V, the image forming condition data of VA, ... will be set to the optimum value, and ■
□ is set to an approximate value that is 0.5 V short of the optimum value.

FIG. 5 is an explanatory diagram showing the relationship between the copying mode and image forming condition data in a copying machine. Due to the different characteristics and filter transmittance, the exposure lamp voltage varies greatly. Further, the exposure lamp voltage differs between each copying mode depending on the photoreceptor speed (process speed) and charging potential.

Furthermore, between copying modes that use the same photoreceptor and the same filter, the exposure lamp voltage differs in absolute value from machine to machine, but the difference in light intensity remains relatively constant. .

For this purpose, as described above, in the embodiment, when the copying mode is selected and the image forming condition data of the exposure lamp is input, the control circuit 24 controls the exposure lamp of the same filter in other copying modes. Image forming condition data is set.

In the embodiment, a special mode can be set as one of the operation modes, and if the special mode is further set and a data shift mode is selected, the shift data setting means is activated when light intensity adjustment is performed in one copy mode. Accordingly, light amount matching, that is, image adjustment is automatically performed for other copying modes that use the same filter.

FIG. 4 is a flowchart showing the operation of the embodiment,
In this case, a red filter is used, a special mode is set in step S1, a data shift mode is selected and set in step S2, and then the process advances to step S3 to cancel the special mode setting.

Next, the process proceeds to step S4, where an image adjustment mode is set, and in step S5, an exposure lamp voltage corresponding to blue-green (Cyan) is input as image forming condition data.
Proceeding to step S6, it is determined whether the mode is data shift mode.

If the determination in step S6 is YES, the process proceeds to step S7, where the exposure lamp voltage in a mode using another red filter is set based on the image forming condition data input in step S5. . Next, the process advances to step S8 to cancel the image adjustment mode, the special mode is set in step S9, the process advances to step SIO to cancel the data shift mode, and the special mode is canceled in step Sll.

If the determination in step S6 is No, the process proceeds to step S12, and the exposure lamp voltages in other red filter use modes are left at their initial data. If fine adjustment of the light amount is to be performed, the light amount of each copying mode is adjusted here, and the process advances to step S13 to cancel the image adjustment mode.

In this way, according to the embodiment, when one copying mode is selected and the exposure lamp voltage data is input in this copying mode, the voltage data of the exposure lamps in other copying modes using the same filter are input to the control circuit. 24, the image forming condition data can be set efficiently in a short time.

Therefore, the image formation adjustment work in the manufacturing process of the copying machine or the image formation adjustment work at the time of parts replacement can be performed accurately in a short time.

Although the embodiments have been described using the exposure lamp voltage as the image forming condition data, the present invention is not limited to the embodiments; for example, the charging potential or the bias voltage of the developing device may be used as the image forming condition data. You can also do that.

〔Effect of the invention〕

As described above in detail, according to the present invention, image formation adjustment work in the manufacturing process of an image forming apparatus or image formation adjustment work when replacing parts can be performed accurately in a short time.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the overall configuration of an embodiment of the present invention, and FIG.
The figure is a block diagram showing the configuration of the main part of the embodiment of the present invention, FIG. 3 is an explanatory diagram showing the copy mode and image forming condition data of the embodiment of the present invention, and FIG. 4 is the operation of the embodiment of the present invention. FIG. 5 is an explanatory diagram of the copying mode and image forming conditions of the copying machine. 2・・・・・・・・・Document mounting table, 3・・・・・・・・・
・Scanner section, 4...Exposure lamp, 10
......Color separation filter, 11...
...Image forming section, 12...Photoreceptor, I
Y, 13 M, 13 C, 138K---Current c
! L device, 14...Charger, 16...
...Transfer roller, 2 ......Power supply section,
24......Control circuit. Figure 2

Claims (1)

[Claims] In an image forming apparatus having a plurality of image forming modes and in which image forming condition data is set for each image forming mode, there is provided a switching means for setting a data shift mode, and a switching means for setting the data shift mode with the switching means. Select one of a plurality of image forming modes, and based on the setting of image forming condition data of one of the selected image forming modes, correspond to the above one image forming condition data of the other image forming mode, and set the image forming mode. An image forming apparatus comprising: shift data setting means for automatically setting image forming condition data having the above commonality.