JPS6459210A - Recording device - Google Patents

Recording device

Info

Publication number
JPS6459210A
JPS6459210A JP21600087A JP21600087A JPS6459210A JP S6459210 A JPS6459210 A JP S6459210A JP 21600087 A JP21600087 A JP 21600087A JP 21600087 A JP21600087 A JP 21600087A JP S6459210 A JPS6459210 A JP S6459210A
Authority
JP
Japan
Prior art keywords
brake
rotating speed
motor
distributor
driving motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21600087A
Other languages
Japanese (ja)
Inventor
Kanji Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP21600087A priority Critical patent/JPS6459210A/en
Publication of JPS6459210A publication Critical patent/JPS6459210A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

PURPOSE:To speed up switching in the decreasing direction of recording density by equipping a motor control means with a brake means for braking a motor when the rotating speed of the motor is higher than a set rotating speed. CONSTITUTION:A voltage comparator 308 compares voltage signals S307 and S308 with each other and outputs the result signal S310, which is inverted by an inverter 309 and outputted as a brake signal S303 to a distributor 303. When the level of the brake signal S303 is 'L', the distributor 303 turns off transistors TR1-3 and turn on transistors TR4-6 to apply a regeneration brake to the driving motor 34b. Therefore, when the actual rotating speed of the driving motor 34b is higher than the set rotating speed based upon a clock S12b, the brake signal S303 falls to 'L' and a brake circuit in the distributor 303 operates to apply the regeneration brake to the driving motor 34b. Consequently, the recording density is quickly switched in the decreasing direction.
JP21600087A 1987-08-29 1987-08-29 Recording device Pending JPS6459210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21600087A JPS6459210A (en) 1987-08-29 1987-08-29 Recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21600087A JPS6459210A (en) 1987-08-29 1987-08-29 Recording device

Publications (1)

Publication Number Publication Date
JPS6459210A true JPS6459210A (en) 1989-03-06

Family

ID=16681734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21600087A Pending JPS6459210A (en) 1987-08-29 1987-08-29 Recording device

Country Status (1)

Country Link
JP (1) JPS6459210A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134258A (en) * 1988-11-16 1990-05-23 Canon Inc Image forming apparatus
JPH02158359A (en) * 1988-12-10 1990-06-18 Canon Inc Image forming device
US5515205A (en) * 1993-02-17 1996-05-07 Olympus Optical Co., Ltd. Lens barrel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02134258A (en) * 1988-11-16 1990-05-23 Canon Inc Image forming apparatus
JPH02158359A (en) * 1988-12-10 1990-06-18 Canon Inc Image forming device
US5515205A (en) * 1993-02-17 1996-05-07 Olympus Optical Co., Ltd. Lens barrel

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