A printing apparatus including: a cleaning section including a cleaning member and configured to perform cleaning processing of a screen mask used in printing of a viscous fluid onto a print target; a cleaning member moving section configured to perform at least one of moving the cleaning member to and from a cleaning position and an exchange position, and unloading and loading of the cleaning member; and an exchange control section configured to control the cleaning member moving section to perform cleaning member exchange processing of exchanging the cleaning member.

A cleaning unit includes a cleaning head that moves a cleaning member, which cleans the screen mask at the cleaning position, a cleaning member holder that supports a first shaft and a second shaft, over which the cleaning member is bridged, and has an opening section allowing the cleaning head to pass therethrough, a base section that detachably fixes the cleaning member holder at a fixing position, a holder moving section that moves the cleaning member holder between the fixing position of the base section and a replacing position where the cleaning member holder is detached from the base section and is unloaded to an outside, and a cleaning driving section that has a connecting section, which is connected and disconnected to and from the first shaft in the cleaning member holder, and drives the first shaft to wind.

Aspects of the present disclosure are directed to a cleaning apparatus for cleaning printing plates. In some embodiments, the cleaning apparatus may comprise a laser arrangement including a pulsed laser for generating laser pulses with pulse duration in the picosecond range. The cleaning apparatus may further comprise laser guidance means for guiding the laser pulses onto a path on a printing plate. Other aspects of the present disclosure are directed to a method including the steps of generating laser pulses with pulse duration in the picosecond range and guiding the laser pulses onto a path on the printing plate.

A system for processing water washable flexo photopolymer printing plates, the system comprises a washing line including one or more brushes and a surface essentially facing said brushes, and a guiding means adapted to guide a water washable photopolymer printing plate through the washing line by pulling it from a vicinity of a downstream edge thereof and automatically dragging such water washable photopolymer printing plate on said surface. Said brushes are adapted to contact onto a side of such water washable photopolymer printing plate in a washing direction from the downstream edge towards an upstream edge thereof. The system further comprises one or more attachments adapted to be annexed to the vicinity of the upstream edge of a water washable photopolymer printing plate, the attachments being further adapted to exert friction onto the surface, said friction being greater than that between such water washable photopolymer printing plate and said surface.

Provided is an activation device for a printing blanket and a printing method using a printing blanket that enable a surface of an absorber to be constantly kept clean to enable proper activation of a surface of the printing blanket. The activation device for a printing blanket includes a storage tank having a box shape, the absorber mounted on the storage tank, and a liquid stored in the storage tank. The absorber includes layers of absorbing members and absorbs the liquid from an absorber lower part, and an uppermost layer of the absorber is peelable from the absorber.

A system and method is disclosed for cleaning an anilox roll and/or ink chamber of a converter. The system includes: a water supply adapted to supply water through an automatically controllable water supply valve to wash anilox roll and/or ink chamber; a cleaning solution supply adapted to supply a cleaning solution through an automatically controllable cleaning solution supply valve to clean the anilox roll and/or ink chamber; and a programmable controller programmed to operate the automatically controllable valves so as to deliver a timed sequence of water and cleaning solution to the cleaning part upon the occurrence of a cleaning cycle initiation condition.

A system and method is disclosed for cleaning an anilox roll and/or ink chamber of a converter. The system includes: a water supply adapted to supply water through an automatically controllable water supply valve to wash anilox roll and/or ink chamber; a cleaning solution supply adapted to supply a cleaning solution through an automatically controllable cleaning solution supply valve to clean the anilox roll and/or ink chamber; and a programmable controller programmed to operate the automatically controllable valves so as to deliver a timed sequence of water and cleaning solution to the cleaning part upon the occurrence of a cleaning cycle initiation condition.

The invention relates to a spray pipe (1), in particular for a printing press roller cleaning device, wherein the spray pipe (1) extends at least in regions in a longitudinal direction and has a plurality of liquid discharge openings (5, 7, 11) which are formed in a wall of the spray pipe (1), wherein a first liquid discharge opening (5) extends with respect to a first direction and a second liquid discharge opening (7) adjacent to the first liquid discharge opening (5) extends in relation to a second direction, the second direction being different from the first direction in such a way that the direction vectors (6, 8) of the first and the second direction intersect in an atomizing region (10) which is spaced apart from the lateral surface (9) of the spray pipe (1).

Screen printer 10 is for screen printing solder paste 13 loaded on an upper surface of stencil 12 onto board S using one of first and second squeegees 71 and 72. Screen printer 10 is provided with a stencil frame holding rail that holds stencil frame 12a of stencil 12, pair of board holding members 36 and 38 that hold board S, raising and lowering table 16 that raises and lowers board holding members 36 and 38, and pair of stencil supporting members 50 and 52 that support stencil 12 from below at a portion outside a printing region of stencil 12 used for screen printing. Stencil supporting members 50 and 52 are provided independently from raising and lowering table 16. Therefore, the load applied to raising and lowering table 16 is reduced. Also, there is increased design freedom with respect to members and the like loaded on raising and lowering table 16.

The present application provides a cleaning apparatus and a cleaning method. The cleaning apparatus includes two wiping parts opposite to each other, a connection part and a cleanliness detection device. The two wiping parts defines a space therebetween to accommodate a part to be cleaned. The two wiping parts are connected through the connection part. The cleanliness detection device is configured to detect cleanliness of the part to be cleaned. The connection part is configured to control a distance between the two wiping parts based on the detected cleanliness.