摘要:
A recording drum has a clamp groove extending in its circumferential direction formed on its outer peripheral surface. A plurality of front end clamps are attached to the outer peripheral surface of the recording drum. Rear end clamps are attached so as to be movable and so as to be fixable along the clamp groove on the outer peripheral surface of the recording drum. A recording head is disposed ahead of the recording drum, and a clamp driving device is disposed behind the recording drum. The clamp driving device comprises a first driving device for fixing the front end clamps and fixing and releasing the rear end clamps and a second driving device for releasing the front end clamps. The front end clamps and the rear end clamps reliably fix a front end and a rear end of a plate to the outer peripheral surface of the recording drum by a reaction force produced by a spring and a centrifugal force produced by the rotation of the recording drum.
摘要:
A method for automatically processing a job in a prepress printing environment includes the steps of: moving an image receiving substrate from a storage bin to a staging area; moving the image receiving substrate from the staging area into a drum; imaging a predefined area of the image receiving substrate in the drum with a laser while simultaneously moving a next image receiving substrate from the storage bin to the staging area; upon completion of the imaging of the image receiving substrate in the drum, simultaneously (a) moving the image receiving substrate from the drum into a processing area for developing an image on the image receiving substrate, and (b) moving the next image receiving substrate from the staging area into the drum; and finally repeating the above steps until the job is completed. The method optionally includes: offsetting the position of the image receiving substrate to alter the location upon the image receiving substrate where the image will be burned; or offsetting the laser position to alter the location upon the image receiving substrate where the image will be burned. A slug line can also be printed at print time outside of the predefined area, and can include identifying information such as a job name, a print drive job identification, a time stamp, a plane name, a page number and user-defined graphics.
摘要:
A punch assembly including at least one punch installed and aligned on a carrier plate. The carrier plate includes a plurality of openings which are configured to mate with corresponding precision locator pins on an imaging system. The punch assembly is installed on the imaging system by inserting the precision locator pins through the plurality of openings in the carrier plate.
摘要:
In order to improve a device for clamping and unclamping film material (3) on and from a stationary holder (12) in which the film material is taken by a transport device (4 to 8) through the holder (12) especially from an inlet to an outlet slot, and held in the holder (12) during exposure, in such a way that the film material can be reliably positioned in the holder (12), it is proposed that a positioning unit (19) be fitted which confers upon the film material (3) a tendency to move against the direction of transport when it is clamped.
摘要:
In a receiver cassette for web material (1), for example for an exposed film web material, the web material exits out of an optical flying spot scanning device (2). The web material (1) passes into an entrance slot (13a) a light-sealed casing (13). A rotatably supported hub (5) of a spool is disposed in the interior (13b) of the light-sealed casing (13). In order to increase the receiving capacity of web material lengths and in order to allow a fully automatic winding formation there is provided a motor-driven hub (5) of the spool. The hub (5) of the spool exhibits an about centric clamping slot (14). When a clamping slot entrance opening (16) of the hub (5) of the spool is directed substantially in upward direction in a base position (15) the hub (5) of the spool is furnished with position-defining means (18) in the end regions (17) of the hub (5) of the spool. The position-defining means (18) maintain the hub (5) of a spool in rest position in the base position (15). The position-defining means (18) can be switched into a non-interfering state by winding up of the web material (1).
摘要:
A media transport system in a phototypesetter for "leading" and "reverse leading" movement of film media at minimal inertia and little friction between a supply cassette and a self-threading take-up cassette, and characterized by vacuum pockets adjustable to varied media width and controlled by sensors for the delivery and removal of media and for the transport thereof across a make-up area where said media is held taught in a focal point while being positioned and moved by encoded drive means synchronizing placement of the typeset image at the make-up area.
摘要:
The use of a stepper motor of large steps, with a pulley type mechanical motion reducer system using a flexible cable for dividing a step of the motor into a divided output motion, and an alternative embodiment wherein a second stepper motor in the form of a two-step solenoid further alters the output by changing the position of the flexible cable anchor. The combination is illustrated in an environment of a lens in a photocomposer wherein a carriage carries a decollimating focusing lens and mirror as an escapement composition device shifted in accordance with the dictates of a program operating under specific algorithms.
摘要:
Paper storage, paper cutting and paper dispensing means are incorporated in a phototypesetting machine to allow a person to select various lengths of photosensitized copy material for delivery to a developer. Once the person makes a selection by operating a switch, paper is cut, withdrawn from the storage area and delivered into an attached developer. The phototypesetting process is interrupted only momentarily to accomplish this selection.