JPS60225132A - Adjusting method of variable power mechanism - Google Patents

Abstract

PURPOSE:To facilitate adjusting operation and to simplify a jig by storing the memory of a copying machin with the number of steps of a lens and mirror driving stepping motor which corresponds to the distance from the best focusing position to the reference position sensor during life-size copying operation. CONSTITUTION:The lens reference position sensor 3 for detecting the reference position of unmagnification copying operation and a mirror reference position sensor 4 are fixed at specific positions without any adjustment. A lens and a mirror 2 are moved on the optical adjusting jig by the lens and mirror driving stepping motor along a guide rail 5 to find the best focusing position in life-size copying operation. The lens and mirror are moved by the stepping motor by the distances from said position to the respective reference position sensors 3 and 4, the number of steps is displayed on the jig, and the displayed number is stored in the memory of the copying machine. Consequently, the sensors need not be adjusted to the reference position at all, so adjusting operation is speeded up greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for adjusting only the positions of lenses and mirrors at the same magnification using a compound machine having a variable (on) function, and adjusting the positions of the lenses and mirrors at the same magnification, and for other magnifications at one time. The present invention relates to a method of adjusting a magnification mechanism so that the lens and mirror are moved by a pre-stored movement amount using a stepping motor or the like.

Conventional technology In the case of a copying machine with a multi-variable 1-position function, the position of each lens and mirror at 4 degrees f''' must be adjusted first, and the (
A method of controlling the position of lenses and mirrors for each magnification by installing a lower detection stage such as a photosen 4 in the cod η has not been used, but in recent years, the number of variable magnifications has increased or the variable magnification function has been increased to 1/1. For other magnifications, a variable magnification mechanism is used that uses a control force type to move the lens and mirror by a pre-stored movement (■) using a stepping motor etc.. . In such a variable power mechanism,
The adjustment work is greatly simplified since there is no need to make adjustments at each magnification, but it does not matter which method you use to adjust the reference position.
is also required.

Usually, this reference position is a position at the same magnification or a certain distance from the same Gj. Installing one stage of position detection such as a photo sensor at this position is the standard position for all magnifications, so it is important to adjust the position of the lens to the base position. Is it possible to move and adjust the adjustment on the jig for optical adjustment?This means that the jig requires a lot of help, and after 1! For such conventional adjustment methods, please refer to the attached drawings.
To explain in more detail, first, on the optical adjustment jig,
1 and mirror 2 along the kite rail 5.
(I' is incorporated into the mechanism of the lens and the mirror river (
Dynamic stepper (move -U, same magnification IJ + go - find the focus position. After that, a certain amount of illumination
l! (Usually after playing 1-2011, this control 1-1 determines the optimal position.) Move the device to the JJ tiI: position and set the lens reference position to that position. The base IP position sensor 4 must be aligned and fixed. However, in the case of 7.1., it would be very difficult to adjust if the sensors 3 and 4 were moved directly by the knife. Hold the sensor at rjj only, 0.1t
Since adjustments were made while moving with a steering wheel, the jig was not only complicated, but also took a lot of work.

OBJECTS OF THE INVENTION An object of the present invention is to provide a method for adjusting a magnification mechanism that eliminates the drawbacks of the conventional methods as described above, and that simplifies the adjustment work and simplifies the jig.

Structure of the Invention According to the present invention, in a copying machine with a variable magnification function, the positions of the lenses and mirrors at the same magnification are adjusted, and other movements (at the time of 11 magnification, the predetermined movement 1a is performed by a stepping motor, etc.) In a method of adjusting a variable magnification mechanism in which the lens and mirror are moved by the same amount, a base 4 (position sensor is fixed at a predetermined position by S adjustment,
Move the lens and mirror to find the center focus position at the same magnification, and from the center focus position, move the distance from the center point to the reference position indicated by J. After moving overnight, display the second number of A in lji only 1-, and make the table 4 7' and the number 75.
6. Please look down at the memory 6 of the frame.

EXAMPLES Next, the present invention will be explained with reference to the accompanying drawings.

This invention no HJ1, h't example t' ”-noi (1'
2 a4M (') JAI! :! :U() is explained with reference to the attached drawings. First, 'IS' (n "I
Detecting the position of the group tlu of the lens group (1) as a position sensor 7
The nky position sensor 4 is fixed at a predetermined position without adjustment.

Next, guide the lens 1 and the mirror 2 on the optical power adjustment lever 5, and move the lens and lens 5 along the lever 5 using the ping motor, and at the same magnification・Find the focus position. After that, the distance i'il from that position to each standard position sensor 3 and 4 is moved by the stepping motor for driving the lens and mirror, and the number of the knobs is displayed on the jig. . Then, calculate the displayed step number by: 'J machine's controller i u-Jl's one lean, 1=-(7-ζ not shown)': c +
11 JTI Shikodu 1.゛I didn't know about the machine, but I was a-u.
By z1 and 2, the five-circumference adjustment is 1'+2. ', is written in complete r'.

Effects of the Invention According to the adjustment method of the present invention, birds! , color adjustment work that does not require any adjustment work of the sender to the quasi-position can be done by one person.
It can be shortened to i, and the jig can be simplified accordingly.

[Brief explanation of the drawing]

The attached drawing is a schematic diagram for explaining the adjustment method of the variable magnification mechanism (1 lens, 2 mirror, 3 lens reference position 1 binza, 4 mirror W quasi-position sensor 4), 5 guide rail.

Claims (1)

[Claims] A variable magnification mechanism in a copying machine that has a variable magnification function, which adjusts only the position of the lens and mirror at the same magnification, and moves the lens and mirror by a pre-stored amount of movement using a stepping motor, etc. at other magnifications. In the adjustment method,
The reference position sensor for detecting the base 110 position at the same magnification is fixed at the final position without adjustment, and the lens and mirror are moved (find the hemost focus position at 1 and 7 o'clock, 1) Move the distance 1 from the focus position to the reference position i6 sensor using the stepping motor for driving the L lens and mirror, display the number of steps on the jig, and store the displayed number of steps in the memory of the copying machine. 4. Z memory [0
An adjustment method characterized by: