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Adjust Print Media Acquisition

A technology for printing media and media, applied in printing devices, printing, thin material handling, etc., can solve problems such as clogging, misfeeding of printing media, and pressure on the pickup roller

Active Publication Date: 2020-03-13
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Media may misfeed or jam, causing the pickup rollers to be stressed during media acquisition

Method used

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  • Adjust Print Media Acquisition
  • Adjust Print Media Acquisition
  • Adjust Print Media Acquisition

Examples

Experimental program
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Embodiment Construction

[0011] Example implementations described herein relate to adjusting print media acquisition. For example, a system may include a printing device that may have a pickup roller attached to a pickup arm and a servo motor that applies torque to the pickup roller. The system may further include an encoder disc, for example, as in Figure 1A Shown at 108 in , the encoder disc is associated with the servo motor, enabling, for example, Figure 1A A controller, shown at 110, determines a measured position of the servo motor relative to an expected position of the servo motor within a particular time frame during print media acquisition. The controller may also determine an adjustment in print media acquisition based on a comparison of the amount of pulse width modulation (PWM) associated with the servo motor's torque od in adjacent time frames.

[0012] A system for print media acquisition (eg, as shown at 100 and in conjunction with Figure 1A described) for use with the printing d...

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PUM

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Abstract

Example implementations relate to adjusting print media acquisition. For example, a system may include a printing device that may have a pickup roller attached to a pickup arm and a servo motor that applies torque to the pickup roller. The system may further include a controller associated with the servo motor to determine a measured position of the servo motor relative to an expected position of the servo motor within a particular time frame during print media acquisition. The controller may further determine an adjustment for print media acquisition based on a comparison of pulse width modulation (PWM) amounts in adjacent time frames.

Description

technical field [0001] The present application relates to print media acquisition, and more particularly to systems and methods for regulating print media acquisition. Background technique [0002] The pickup roller of the printing device may be a cylindrical member, eg, a rubber-coated wheel body. The pick-up roller may assist in capturing print media, such as paper, by engaging the print media and rotating to feed the print media into the print zone of the printing device. The media may misfeed or jam, causing the pickup rollers to be stressed during media acquisition. Contents of the invention [0003] An aspect of the invention discloses a system comprising: a printing device comprising: a pickup roller attached to a pickup arm; a servo motor applying torque to the pickup arm; and a controller associated with the servo motor, thereby: determining a measured position of the servo motor relative to an expected position of the servo motor within a first time frame durin...

Claims

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Application Information

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IPC IPC(8): B41J13/076B41J29/38
CPCB41J13/076B41J29/38B65H2511/20B65H2513/50B65H2515/32B65H2553/51B65H2555/24B65H3/0669B65H7/02B65H2601/255B65H2220/01B65H2220/02B65H3/0684B65H5/068B65H7/18B65H2801/12
Inventor 王锋唐强
Owner HEWLETT PACKARD DEV CO LP