6512 problem with scanner lamp!!! need instant help!

[Brian8506]

Except many of us don't understand it.

[teckat]

YouTube - 5612 - shakeing issue II


did it ,as you see,still dont see any cause of this

Your Scanner Lens clock pulse drive motor is no good
Scanner/lens drive motor (M2)

The scanner/lens drive motor (M2) is a 4-phase stepping motor. The timing at which the drive power (SC-COM) and pulses (SC-A, SCA*, SC-B, SC-B*) are generated is controlled to turn on/ off the scanner/lens drive motor (M2) or to switch the direction of its rotation.

The microprocessor (Q101) mounted on the DC controller PCB receives instructions from the control panel PCB copying mode settings (e.g., reproduction ratio). In response, it applies drive pulses to the scanner/lens drive motor (M2) through the motor driver circuit.
The scanner motor is a 4-phase stepping motor, and changes the direction and speed of its rotation according to the sequence and frequency of drive pulses (SC-A*through SC-B*).
The motor drive voltage is switched on and off by pulse signals (A through B*) generated by the microprocessor (Q101). Any of these pulse signals is generated when the motor is in operation, while no pulse signal is generated when the motor is at rest.
The current switching signals from 1 to 3 generated by the microprocessor (Q101) are used to control the current flowing to the motor so that it varies according to the state of the scanner and the
lens.
If over-current flows to the scanner/lens drive motor for some reason, the fuse (R339) on the DC controller PCB will blow to cut the power to the motor.
Caution:The fuse (R339) will not recover once it has blown

The scanner is driven by the scanner/lens drive motor (M2), whose direction of rotation
changes to move the scanner forward or in reverse.
When moving the scanner forward, the speed of rotation of the motor varies according to the selected reproduction ratio on a continuous basis; when moving the scanner in reverse, on the other hand, its speed remains the same regardless of the selected reproduction ratio in normal copying (312mm/sec, about 3.3 as fast as when moving the scanner forward in Direct).
The distance over which the scanner is moved varies according to the length of copy paper and the selected reproduction ratio.
The scanner/lens drive motor dives the lens drive system as well as the scanner.

scanner.JPGlens.JPG
The lens drive system is driven by the scanner/lens drive motor (M2). When the lens solenoid
(SL3) turns on, the switching gear is pushed in the direction of ->. In this condition, when the
scanner/lens drive motor rotates in reverse direction (<- ), the lens unit will move in the direction of
reduction (->) by the work of the gear and the lens cable.
At the same time, the No. 4/5 mirror unit operates according to the distance over which the lens
unit is moved by the work of the gear and the cam, thereby varying the optical length.
At this time, the blanking lamp also moves in conjunction with the lens to blank out the appropriate
front/rear widths to suit the selected reduction ratio.

[Smiley27]

Your Scanner Lens clock pulse drive motor is no good
Scanner/lens drive motor (M2)

The scanner/lens drive motor (M2) is a 4-phase stepping motor. The timing at which the drive power (SC-COM) and pulses (SC-A, SCA*, SC-B, SC-B*) are generated is controlled to turn on/ off the scanner/lens drive motor (M2) or to switch the direction of its rotation.

The microprocessor (Q101) mounted on the DC controller PCB receives instructions from the control panel PCB copying mode settings (e.g., reproduction ratio). In response, it applies drive pulses to the scanner/lens drive motor (M2) through the motor driver circuit.
The scanner motor is a 4-phase stepping motor, and changes the direction and speed of its rotation according to the sequence and frequency of drive pulses (SC-A*through SC-B*).
The motor drive voltage is switched on and off by pulse signals (A through B*) generated by the microprocessor (Q101). Any of these pulse signals is generated when the motor is in operation, while no pulse signal is generated when the motor is at rest.
The current switching signals from 1 to 3 generated by the microprocessor (Q101) are used to control the current flowing to the motor so that it varies according to the state of the scanner and the
lens.
If over-current flows to the scanner/lens drive motor for some reason, the fuse (R339) on the DC controller PCB will blow to cut the power to the motor.
Caution:The fuse (R339) will not recover once it has blown

The scanner is driven by the scanner/lens drive motor (M2), whose direction of rotation
changes to move the scanner forward or in reverse.
When moving the scanner forward, the speed of rotation of the motor varies according to the selected reproduction ratio on a continuous basis; when moving the scanner in reverse, on the other hand, its speed remains the same regardless of the selected reproduction ratio in normal copying (312mm/sec, about 3.3 as fast as when moving the scanner forward in Direct).
The distance over which the scanner is moved varies according to the length of copy paper and the selected reproduction ratio.
The scanner/lens drive motor dives the lens drive system as well as the scanner.

[ATTACH=CONFIG]9879[/ATTACH][ATTACH=CONFIG]9878[/ATTACH]
The lens drive system is driven by the scanner/lens drive motor (M2). When the lens solenoid
(SL3) turns on, the switching gear is pushed in the direction of ->. In this condition, when the
scanner/lens drive motor rotates in reverse direction (<- ), the lens unit will move in the direction of
reduction (->) by the work of the gear and the lens cable.
At the same time, the No. 4/5 mirror unit operates according to the distance over which the lens
unit is moved by the work of the gear and the cam, thereby varying the optical length.
At this time, the blanking lamp also moves in conjunction with the lens to blank out the appropriate
front/rear widths to suit the selected reduction ratio.

Oh no You made it complicated,Iv got no idea what exactly solved my problem,but,it was easy (H)

[teckat]

What exactly did u do to address and repair your issue.??????

Remember, nothing is easy in this business.