Printer drive roller with grit-blasted surface

Details Printer drive roller with grit-blasted surface Printer drive roller with grit-blasted surface

1997-03-11

1999-03-16

Hilten, John

Typewriting machines

Platen or platen-moving mechanism

Cylindrical platen

400659, B41J 1104

Patent

active

058821317

ABSTRACT:
A drive roller for an ink-jet printer. The drive roller has a media engaging surface that is roughened by grit blasting along an entire media engaging longitudinal peripheral extent. The surface is hardened by anodizing. The roller is relatively inexpensive to fabricate yet has a small error on diameter and run out, and high traction due to the surface roughness, to provide highly accurate media positioning performance. The drive roller rotates about shaft mounted bearings. The shaft journal is formed with a small raised bump, which has very loose diametrical tolerance requirements, but is short in comparison to the bearing length dimension. When the bearing is press fit onto the shaft journal, the material forming the raised bump is sheared by the bearing. The sheared material drops into a recess on the journal, and does not interfere with the axial positioning of the bearing. The axial position of the bearing is controlled by placing the bearing next to a shoulder formed on the shaft.

REFERENCES:
patent: 4189815 (1980-02-01), Seelenbinder
patent: 4288469 (1981-09-01), Meyer et al.
patent: 4384298 (1983-05-01), LaBarre et al.
patent: 4794680 (1989-01-01), Meyerhoff et al.
patent: 5152618 (1992-10-01), Goodwin et al.
patent: 5177538 (1993-01-01), Mammino et al.
patent: 5433308 (1995-07-01), Gagnon
patent: 5461468 (1995-10-01), Dempsey et al.
patent: 5541029 (1996-07-01), Iwata et al.
patent: 5552235 (1996-09-01), Bastawros et al.
patent: 5675893 (1997-10-01), Yamada et al.
patent: 5751303 (1998-05-01), Erickson et al.
European Search Report for Application 98301750.0, mailed Sep. 9, 1998.
Patent Abstracts of Japan vol. 014, No. 247 (M-0978), 25 May 1990 & JP 02 067163 A (Matsushita Electric Ind Co Ltd), 7 Mar. 1990.
EP 0 373 481 A (Eastman Kodak Co) 20 Jun. 1990.
Patent Abstracts of Japan vol. 096, No. 0007, 31 Jul. 1996 & JP 08 083011 A (Akou Kogyosho:KK), 26 Mar. 1996.
Patent Abstracts of Japan vol. 013, No. 060 (M-796), 10 Feb. 1989 & JP 63 265671 A (Cannon Inc), 2 Nov. 1988.

Affiliated with

Also associated with

Rating

Printer drive roller with grit-blasted surface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printer drive roller with grit-blasted surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printer drive roller with grit-blasted surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-811441