Indication of print media quality to printer users

• US 8,366,229 B2
• Filed: 04/27/2010
• Issued: 02/05/2013
• Est. Priority Date: 04/27/2010
• Status: Active Grant

• Current Assignee: Maplebear Inc.
• Original Assignee: International Business Machines Corporation
• Inventors: Kuczynski, Joseph, Makley, Hye S., Miller, Melissa K., Williams, Heidi D., Zhang, Jing
• Primary Examiner(s): Nguyen, Lam S
• Application Number:
  US12/767,835
• Publication Number:
  US 20110261105A1
• Time in Patent Office: 1,015 Days
• Field of Search: 347/5, 347/9, 347/16, 347/1, 347/19
• US Class Current: 347/16
• CPC Class Codes: B41J 11/009 Detecting type of paper, e.g. by automatic reading of a code that is printed on a paper package or on a paper roll or by sensing the grade of translucency of the paper
• CPC Class Codes: G06F 3/1293 Printer information exchange with computer

Abstract

A printing system for indicating print media quality to printer users includes a printing assembly configured to route print media along a pathway for printing. In an example, the system includes, but is not limited to, a thermal printer having a thermal print head for printing onto paper. The system also includes a light meter configured to detect light reflected from the print media, such as the paper. The light meter also measures a characteristic of the detected light. An indicator is coupled to the light meter, and configured to present a quality level of the print media to a user based on the measured characteristic of the detected light.

Claims

1. A system comprising:

a printing assembly configured to route print media along a pathway for printing;

a light meter configured to detect light reflected from the print media, and to measure a characteristic of the detected light;

a computing unit configured to determine first and second quality levels of the print media based on the measured characteristic, and configured to compare an amount of print media routed through the pathway at the first quality level with an amount of print media routed through the pathway at the second quality level; and

an indicator coupled to the light meter, and configured to present the comparison of the first and second quality levels of the print media to a user.

2. The system of claim 1, wherein the indicator is configured to:

compare the measured characteristic of the detected light to a predetermined value; and

present one of the first and second quality levels of the print media to the user based on the comparison to the predetermined value.

3. The system of claim 1, wherein the light meter is configured to measure a gloss characteristic of the print media based on the detected light, and

wherein the indicator is configured to present one of the first and second quality levels of the print media to the user based on the gloss characteristic measurement.

4. The system of claim 1, wherein the light meter comprises a light source configured to generate and direct light to a surface of the print media, and

wherein the printing assembly is configured to route the print media such that the surface of the print media intercepts the light from the light source.

5. The system of claim 1, wherein the light meter comprises a light source configured to generate and direct light to a surface of the print media at an angle of incidence of approximately 60 degrees with respect to the surface of the print media.

6. The system of claim 5, wherein the light meter comprises a light detector positioned to receive the light at an angle of reflection of approximately 60 degrees with respect to the surface of the print media.

7. The system of claim 1, further comprising a computing unit configured to:

determine the quality level of the print media based on the measured characteristic of the detected light;

measure an amount of the print media processed by the printing assembly at the determined quality level; and

associate the amount of processed print media with the quality level of the print media.

8. The system of claim 1, further comprising a computing unit configured to:

receive a first measurement of a detected light characteristic of a first print media;

receive a second measurement of a detected light characteristic of a second print media, wherein the second print media differs from the first print media;

determine quality levels of the first print media and second print media, wherein the quality level of the first print media differs from the quality level of the second print media; and

compare the quality levels of the first print media and second print media to generate a comparison measure, and

wherein the indicator is configured to present the comparison measure to the user.

9. A method comprising:

routing print media along a pathway;

detecting light reflected from the print media;

measuring a characteristic of the detected light;

determining first and second quality levels of the print media based on the measured characteristic;

comparing an amount of print media routed through the pathway at the first quality level with an amount of print media routed through the pathway at the second quality level; and

presenting the comparison of the first and second quality levels of the print media to a user.

10. The method of claim 9, further comprising comparing the measured characteristic of the detected light to a predetermined value, and

further comprising presenting one of the first and second quality levels of the print media to the user based on the comparison to the predetermined value.

11. The method of claim 9, wherein measuring a characteristic of the detected light comprises measuring a gloss characteristic of the print media based on the detected light, and

wherein presenting the comparison comprises presenting one of the first and second quality levels of the print media to the user based on the gloss characteristic measurement.

12. The method of claim 9, further comprising:

generating light;

directing the light to a surface of the print media; and

routing the print media such that the surface of the print media intercepts the light from the light source.

13. The method of claim 9, further comprising:

generating light; and

directing the light to a surface of the print media at an angle of incidence of approximately 60 degrees with respect to the surface of the print media.

14. The method of claim 13, further comprising, at a light detector, receiving the light at an angle of reflection of approximately 60 degrees with respect to the surface of the print media.

15. The method of claim 9, further comprising:

determining the quality level of the print media based on the measured characteristic of the detected light;

measuring an amount of the print media processed by the printing assembly; and

associating the amount of processed printed media with the quality level of the print media.

16. The method of claim 9, further comprising:

receiving a first measurement of a detected light characteristic of first print media;

receiving a second measurement of a detected light characteristic of second print media, wherein the second print media differs from the first print media;

determining quality levels of the first print media and second print media, wherein the quality level of the first print media differs from the quality level of the second print media;

comparing the quality levels of the first print media and second print media to generate a comparison measure; and

presenting the comparison measure to the user.