The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Dec. 05, 2016
Masanori Igarashi, Kanagawa, JP;
Masanori Igarashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid discharge apparatus includes a liquid discharge head, a cap, a wiper, a maintenance device, and a maintenance controller. Receiving an execution instruction of a maintenance operation, the maintenance controller controls the maintenance device to perform a second maintenance operation when an amount of stain of a nozzle face of the head from a preceding round of the second maintenance operation is equal to or greater than a first threshold and an elapsed time from the preceding round of the second maintenance operation is equal to or greater than a second threshold, and controls the maintenance device to perform a first maintenance operation when the amount of stain of the nozzle face from the preceding round of the second maintenance operation is equal to or greater than the first threshold and the elapsed time from the preceding round of the second maintenance operation is smaller than the second threshold.