CN112596353A

CN112596353A - High-speed scanning control circuit for laser printing

Info

Publication number: CN112596353A
Application number: CN202011592873.8A
Authority: CN
Inventors: 范旭龙; 张志龙; 姜晓光; 陆华夏
Original assignee: Nanjing Lischen Intelligent Equipment Co Ltd
Current assignee: Nanjing Lischen Intelligent Equipment Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-02

Abstract

The invention relates to a high-speed scanning control circuit for laser printing, and belongs to the technical field of laser printers. The method is characterized in that: the system comprises a control chip, a data manager, an expansion distributor, a speed regulation core and a motor control module, wherein the speed regulation core comprises a clock management module, a power supply regulation module, a coding regulation module, a delay module, a sending module, a line synchronization management module and a data registration module; the control chip is respectively in data connection with the data management module, the motor control module and each module in the speed regulation core through the expansion distributor, the data manager is connected with the coding adjustment module, the delay module and the sending module are sequentially in data connection, the sending module is connected with the external data receiving device, the line synchronization management module is connected with the external sensor and receives the position signal, and the power supply adjustment module outputs the adjustment signal to the outside. The invention can improve the printing speed of the A4 paper of the laser printer to 60 PPM.

Description

High-speed scanning control circuit for laser printing

Technical Field

The invention relates to a high-speed scanning control circuit for laser printing, and belongs to the technical field of laser printers.

Background

The laser printer converts the character and figure information sent by the computer into laser beam, and scans the photosensitive drum at constant speed along the axis of the photosensitive drum after passing through a series of optical systems, so as to form electrostatic latent image corresponding to the input information. The laser printing machine is popular with consumers due to the characteristics that the speed is high, the page yield is high, printed products cannot generate fuzzy writing after a plurality of years, the laser printing machine is one of office equipment essential for modern enterprises, the printing speed is an important parameter of the printer, the most common printing task of the enterprise is the printing of A4 paper, the laser printer capable of printing about 10A 4 paper sheets per minute is called a low-speed machine, 25-40 medium-speed machines and more than 50 medium-speed machines on the basis of the printing speed of A4 paper, the enterprise pays more attention to the printing speed of the laser printer when a large number of printing tasks are available, and the laser printing machine is developed in a direction of improving the printing speed as much as possible on the premise of not influencing the quality of printed contents.

Disclosure of Invention

The invention aims to provide a high-speed scanning control circuit for laser printing, which is used for controlling a laser printer to improve the printing speed as much as possible on the premise of not influencing the quality of printed contents.

The technical scheme is as follows:

a high-speed scanning control circuit for laser printing comprises a control chip (cpu), a Data Manager (DMA), an expansion distributor (Axi _ interconnect), a speed regulation core (LSU _ TOP) and a motor control module MC _ controller, wherein the control chip is respectively in data connection with the data manager, the motor control module and each module in the speed regulation core through the expansion distributor; the speed regulation core comprises a clock management module blocking _ Wizard, a power supply regulation module Ld _ power _ pwm, an encoding regulation module LSU _ core, a delay module Data _ buf, a sending module axi _ LSU _ if (servers _ out), a line synchronization management module hsync _ management and a Data registration module LSU _ reg; the data manager is connected with the coding adjusting module, the delay module and the sending module are sequentially in data connection, the sending module is connected with the external data receiving device, the motor control module is connected with the motor, the line synchronization management module is connected with the external sensor and receives the position signal, and the power supply adjusting module outputs the adjusting signal to the outside.

Furthermore, the control chip schedules functions among the modules, compares data of the line synchronization management module with data of the clock management module, judges whether the motor is stable or not, adjusts the rotating speed of the motor through the motor control module, inputs data in the data manager into the coding adjustment module for processing, and outputs the processed data through the sending module.

Furthermore, the number of the data managers is two or more, the data managers are connected with each other through the control connectors, and the data in the memory are directly sent to the coding adjustment module through the FIFO data transmission bus.

Further, the clock management module multiplies or divides the standard clock to provide the standard clock for different modules to use.

Further, the code adjusting module adjusts and switches the states of other modules according to the command of the data registering module.

Further, the data register module uses the multiplexer to convert the bus data and store the bus data into the register.

Furthermore, the speed regulation core is an FPGA chip.

Has the advantages that:

the invention dispatches the functions among all modules through the control chip, adjusts the rotating speed of the motor through the position of the motor, and can improve the A4 paper printing speed of the laser printer to 60PPM (number of printed pages per minute) in cooperation with data output.

Drawings

FIG. 1 is a logic schematic of a high speed scan control circuit for laser printing;

wherein: the system comprises a control chip 1, a data manager 2, an extension distributor 3, a motor control module 4, a speed regulation core 5, a clock management module 51, a power regulation module 52, a code regulation module 53, a delay module 54, a sending module 55, a line synchronization management module 56 and a data registration module 57.

Detailed Description

The invention is described in detail below with reference to the following figures and specific examples:

as shown in fig. 1, the high-speed scanning control circuit for laser printing includes a control chip 1, a data manager 2, an expansion distributor 3, a speed-adjusting core 5, and a motor control module 4, wherein the control chip 1 is respectively connected to the data manager 2, the motor control module 4, and each module in the speed-adjusting core 5 through the expansion distributor 3; the speed regulation core comprises a clock management module 51, a power supply regulation module 52, a coding regulation module 53, a delay module 54, a sending module 55, a line synchronization management module 56 and a data registration module 57, the data manager 2 is connected with the coding regulation module 53, the delay module 54 and the sending module 55 are sequentially in data connection, the sending module 55 is connected with an external data receiving device, the line synchronization management module 56 is connected with an external sensor and receives a position signal, and the power supply regulation module 52 outputs a regulation signal to the outside.

The control chip 1 schedules functions among the modules, compares data of the line synchronization management module 56 with data of the clock management module 51, judges whether the motor is stable, adjusts the rotating speed of the motor through the motor control module 4, inputs data in the data manager 2 into the code adjustment module 53 for processing, and outputs the processed data through the sending module 55.

The data manager 2 is connected with the control connector 3, and sends the data in the memory to the code adjustment module 53 directly through the FIFO data transmission bus.

The clock management module 51 multiplies or divides the standard clock to provide the standard clock to different modules for use.

The code adjusting module 53 adjusts and switches the states of other modules according to the command of the data registering module 57.

The data register module 57 converts and stores the bus data into the register using the multiplexer.

The speed regulation core 5 is an FPGA chip.

Example (b): after the data manager receives the printing data, the control chip starts the motor through the motor control module, judges whether the motor is stable after comparing the data of the calculation line synchronization management module with the data of the clock management module, and sends the data through the command sending module if the motor is stable, and simultaneously changes the rotating speed of the motor through the motor control module so as to meet the requirement of printing operation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.

Claims

1. A high speed scan control circuit for laser printing, characterized by: the system comprises a control chip (1), a data manager (2), an expansion distributor (3), a speed regulation core (5) and a motor control module (4), wherein the control chip (1) is in data connection with the data manager (2), the motor control module (4) and each module in the speed regulation core (5) through the expansion distributor (3); the speed regulation core comprises a clock management module (51), a power supply regulation module (52), a coding regulation module (53), a delay module (54), a sending module (55), a line synchronization management module (56) and a data registration module (57), a data manager (2) is connected with the coding regulation module (53), the delay module (54) and the sending module (55) are sequentially in data connection, the sending module (55) is connected with an external data receiving device, the line synchronization management module (56) is connected with an external sensor and receives position signals, and the power supply regulation module (52) outputs regulation signals to the outside.

2. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the control chip (1) schedules functions among the modules, compares data of the line synchronization management module (56) with data of the clock management module (51) for calculation, judges whether the motor is stable, adjusts the rotating speed of the motor through the motor control module (4), inputs data in the data manager (2) into the coding adjustment module (53) for processing, and outputs the processed data through the transmission module (55).

3. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the data managers (2) are two or more and are connected with each other through the control connector (3), and the data in the memory are directly sent to the coding adjustment module (53) through the FIFO data transmission bus.

4. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the clock management module (51) multiplies or divides the standard clock frequency and provides the standard clock frequency to different modules for use.

5. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the code adjusting module (53) adjusts and switches the states of other modules according to the command of the data registering module (57).

6. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the data register module (57) converts the bus data into a register by adopting a multiplexer and stores the bus data into the register.

7. A high speed scan control circuit for laser printing as claimed in claim 1, wherein: the speed regulation core (5) is an FPGA chip.