Patent US5307991A successfully refreshed from Google Patents.
Patent JPS546541A successfully refreshed from Google Patents.
JPS546541A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Protecting device of ink jet heads
Assignee: Ricoh Co Ltd
•
Filing: 1977-06-16
•
Granted: —
•
Expires: 1997-06-16
Abstract
Abstract PURPOSE:To prevent crashing of a head to the main body and actuate the clog preventing device of the head in that position by feeding back the head to its home position by controlling motors for main scanning and auxiliary scanning respectively according to the position when power supply is cut off during scanning.
Inventors
- 👤 Koichiro Jinnai
- 👤 Tsutomu Sato
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-07 19:03
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.