IMAGE FORMING DEVICE

Japanese Patent JP3919385

B2

PROBLEM TO BE SOLVED: To make controllable many functions and to improve the operability by performing the display of a key which can not be set differently from the display of a key which can be set, making key input by different display ineffective and informing a coin vender of charge unit at the time of ejecting paper in copying output.
SOLUTION: A communication circuit 123 communicates information on the sum of money slotted at present and charge information that a copying machine 110 uses with a communication circuit 113 on the copying machine 110 side. In the copying machine 110, a charge for copying operation set in the operation display part 111 of the copying machine 110, which is connected to a charge control circuit 112 on the copying machine 110 side is calculated and compared with the sum of money slotted at present so as to control the propriety of the copying output. Namely, whether or not the sum of money is equal to or above the charge of a copying output function is discriminated, and when it is not more than the charge, the key on an operation display part 111 being the copying output function is displayed by using halftone dot meshing so that the key input can not be performed. The charge information is transmitted to a control device 120 at the time of ejecting the paper in the copying output.

Hideyuki Nagata

JP16533299A

May 23, 2007

June 11, 1999

Click for automatic bibliography generation  

Canon Inc

G03G21/00; G03G21/02; G07F9/02; (IPC1-7): G03G21/02; G03G21/00; G07F9/02

JP11125949A
JP11272134A
JP4009952U
JP8190323A
JP2197862A
JP11084964A

Hiroyuki Niwa
Tadao Noguchi

Previous Patent: SCROLL FLUID MACHINE

Next Patent: METHOD AND DEVICE FOR COVERING POWDER AND GRAIN CONVEYED THROUGH PIPE BY AIR CURRENT WITH ADHESIVE