Claims
- 1. A printer comprising:
- a feed reel winding one end of an ink ribbon;
- a take-up reel winding the other end of said ink ribbon;
- a ribbon cassette containing said feed reel and said take-up reel, said ribbon cassette being mounted stationarily on a body of the printer;
- a carriage having a print head for printing by using said ink ribbon, said carriage being mounted on said body independently of said ribbon cassette and being movable in a printing direction thereof;
- rotating means disposed on said body for applying a first torque to said feed reel in a direction to wind said one end of said ink ribbon and a second torque to said take-up reel in a direction to wind said other end of said ink ribbon during both of printing by said print head and returning of said carriage, said first torque and said second torque being substantially identical in magnitude with each other;
- reel control means disposed on said body for controlling said rotating means such that said rotating means decreases the respective magnitudes of said first torque and said second torque with respect to a ribbon discharge force of said print head during said printing by said print head, and restores the respective magnitudes of said first torque and said second torque during said returning of said carriage.
- 2. The printer according to claim 1, wherein said carriage further has control rollers for transferring said ink ribbon in a length corresponding to a printing portion of every printing by said print head during said printing by said print head, and for selectively gripping said ink ribbon to hold said ink ribbon stationary relative to said print head.
- 3. The printer according to claim 2, wherein said gripping means is adapted to grip said ink ribbon during said returning of said carriage.
- 4. The printer according to claim 2, wherein said gripping means is adapted to grip said ink ribbon when a blank is encountered during said printing by said print head, and said reel control means further controlling said rotating means to fail to apply said first torque and said second torque to said feed reel and said take-up reel, respectively, when a blank is encountered during said printing.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-90412 |
Apr 1987 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 181,315, filed on Apr. 13, 1988, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (3)
Number |
Date |
Country |
201675 |
Dec 1982 |
JPX |
217384 |
Dec 1983 |
JPX |
120085 |
Jun 1985 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
181315 |
Apr 1988 |
|