Not known Factual Statements About Fuser Assembly
Not known Factual Statements About Fuser Assembly
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This converts the voltage up or all the way down to the required output level on its secondary winding. The output transformer during the block diagram serves this objective.
While a location diameter in the laser scanning unit Utilized in a standard printer is often 60 to 70 μm, When the sum on the point of interest variations is within ±two mm, a spot diameter improve on the photosensitive system is in a depth of target, thus minimally influencing the performance of your laser scanning unit.
Basically, SMPS was invented to overcome the drawback of LPS because it is very efficient. Also, in contrast to linear power supply, it's suited to programs where by greater output present-day or voltage is necessary mainly because it incorporates switching regulators. This can be the cause the switch manner power supply is named so.
Also, when your printer notifies you of a print head situation, it could require a basic cleanse or an entire substitute.
Concerning C and D: heat sink for switching Energetic elements of not less than five secondary voltages, for each the ATX specification;
If a DC output is required, the AC output through the transformer is rectified. For output voltages earlier mentioned ten volts or so, regular silicon diodes are generally applied. For decreased voltages, Schottky diodes are commonly employed because the rectifier factors; they've got the advantages of a lot quicker Restoration situations than silicon diodes (allowing reduced-reduction Procedure at increased frequencies) and also a lessen voltage fall when conducting.
The initial adjustment mirror 31A and the 2nd adjustment mirror 32A, and the main adjustment mirror 31B and the second adjustment mirror 32B, are disposed so that they arrange axial chief rays from the initial cylindrical lenses 3A and 3B towards impression forming positions on to planes together the sub-scanning route among the 2nd adjustment mirrors 32A and 32B plus the picture forming positions at their neutral positions, these kinds of that the axial chief rays are parallel to one another.
In addition, given that the very first and next light-weight concentrating factors independently focus The sunshine inside the sub-scanning path and the main scanning course, respectively, a point of interest within the sub or primary scanning way is usually quickly modified.
[33] Mitigated by great failsafe design and style. Failure of a element while in the SMPS alone can cause additional harm to other PSU components; might be difficult to troubleshoot.
a help member SMPS for supporting the semiconductor laser and also the collimating lens, whereby a sum of the point of interest variation brought on by a wavelength improve of the semiconductor laser during a temperature improve, a focus variation attributable to a thermal shrinkage from the help member, a point of interest variation brought on by a focal duration modify of the second gentle concentrating element, in addition to a point of interest variation brought on by a focal duration modify on the singlet plastic fθ lens, is in just A variety of about ±2 mm.
While this is going on, the photosensitive drum 17 d rotates within the sub-scanning path at a continuing linear velocity. Appropriately, the laser beam fifteen d is scanned two-dimensionally more than the photosensitive drum 17 d to type a check here latent image over the photosensitive drum seventeen d. In the event the impression forming technique is within a black printing manner, a monochrome picture is shaped.
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Even further, given that the second cylindrical lenses 5A and 5B are set up in between the multi-beam mild resource 2 and also the polygon mirror 6, the magnifying power on the optical method in the main scanning direction is modest, therefore increasing an mistake tolerance in adjustment or manufacture in the scanning unit.
7. A method for managing a thermal performance variation inside a laser scanning unit, comprising the ways of: controlling a focus variation caused by a wavelength alter of the semiconductor laser all through a temperature change;