| US 7,574,153 B2 | ||
| Image forming method and apparatus including adjustable conveyance speed to prevent image shock jitter | ||
| Takahiro Nakayama, Yokohama (Japan); Masahiko Satoh, Machida (Japan); and Akira Shinshi, Machida (Japan) | ||
| Assigned to Ricoh Company, Ltd., Tokyo (Japan) | ||
| Filed on Nov. 15, 2006, as Appl. No. 11/560,173. | ||
| Claims priority of application No. 2005-330266 (JP), filed on Nov. 15, 2005. | ||
| Prior Publication US 2007/0110464 A1, May 17, 2007 | ||
| Int. Cl. G03G 15/16 (2006.01); G03G 15/00 (2006.01) | ||
| U.S. Cl. 399—45 [399/66; 399/67; 399/68; 399/167] | 19 Claims |
| 1. An image forming method, comprising:
forming a toner image on an image carrier of an image forming apparatus;
transferring the toner image on the image carrier onto an intermediate transfer member;
transferring the toner image on the intermediate transfer member rotating at a linear speed Vc onto a recording medium, which
is fed along a first conveyance path from a registration roller pair rotating at a linear speed Vr, by a transfer member;
fixing the toner image on the recording medium, which is fed along a second conveyance path from the transfer member, by a
fixing member rotating at a linear speed Vt;
determining whether the recording medium is a thin recording medium or a thick recording medium;
when the determining determines that the recording medium is the thick recording medium adjusting the linear speeds such that
Vr <Vc <Vt: and
when the determining determines that the recording medium is the thin recording medium, adjusting the linear speeds such that
Vc <Vr <Vt,
wherein a combined length of the first and second conveyance paths is shorter than a maximum length of the recording medium
of the image forming apparatus.
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