A print agent application assembly cleaning tool is disclosed. The print agent application assembly cleaning tool may include a handle and a flexible blade. The flexible blade may be inserted into a gap between a pair of electrodes of a print agent application assembly. The blade may protrude from a distal end of the handle in a lengthwise direction. The blade may have a width that varies to define a curved profile. The width may reduce and subsequently increase along a length of the blade so as to define a recess in an edge of the blade.

In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.

In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.

An image formation device includes a transfer member and a first portion to receive an electrically charged, image-receiving holder onto the transfer member. A second portion downstream from the first portion is to receive droplets of ink particles within a dielectric carrier fluid onto the electrically charged, image-receiving holder to form at least part of an image. A charge source is to emit airborne charges to charge the ink particles to move, via attraction relative to the image-receiving holder, through the carrier fluid to become electrostatically fixed relative to the image-receiving holder. A liquid removal unit is to remove at least the carrier fluid from at least a surface of the image-receiving holder. A transfer station is to transfer the ink particles of the image and the image-receiving holder together from the transfer member to an image formation medium.

A solid particle aerosol development device form fogs of solid (e.g., frozen) fountain solution particles that are charged, and brings the charged solid fountain solution particles into proximity of an electrostatic charged image pattern on a imaging member's charge retentive surface. The charged solid fountain solution particles bond to the charge retentive surface at the charged image pattern to develop that image into a fountain solution latent image. The solid particle aerosol development devices produce solid fountain solution particles to develop electrostatic latent images while mitigating issues of evaporation and vapor production, and thus may apply fine films of fountain solution which may otherwise evaporate. In examples, the fountain solution aerosol development devices may include an anilox member, a metering member in contact with the anilox member, a fountain solution reservoir, a particle charger and a particle delivery baffle.

A solid particle aerosol development device form fogs of solid (e.g., frozen) fountain solution particles that are charged, and brings the charged solid fountain solution particles into proximity of an electrostatic charged image pattern on a imaging member's charge retentive surface. The charged solid fountain solution particles bond to the charge retentive surface at the charged image pattern to develop that image into a fountain solution latent image. The solid particle aerosol development devices produce solid fountain solution particles to develop electrostatic latent images while mitigating issues of evaporation and vapor production, and thus may apply fine films of fountain solution which may otherwise evaporate. In examples, the fountain solution aerosol development devices may include an anilox member, a metering member in contact with the anilox member, a fountain solution reservoir, a particle charger and a particle delivery baffle.

There is provided a sponge cleaning roller for cleaning an electrophotographic printing drum, the sponge of the cleaning roller having a Shore 00 hardness of about 9 or greater and a porosity of about 38 ppi or greater.

A print agent application assembly cleaning tool is disclosed. The print agent application assembly cleaning tool may include a handle and a flexible blade. The flexible blade may be inserted into a gap between a pair of electrodes of a print agent application assembly. The blade may protrude from a distal end of the handle in a lengthwise direction. The blade may have a width that varies to define a curved profile. The width may reduce and subsequently increase along a length of the blade so as to define a recess in an edge of the blade.

An example cleaning station for a liquid electrophotographic printer is described. The cleaning station has a first cleaning member, a second cleaning member, and a biasing member. The cleaning station is configured to move between a first position and a second position with respect to a photo imaging member of the printer. In the first position, the first cleaning member is arranged to remove particles from the photo imaging member of the printer and the second cleaning member is arranged to apply a force to a layer of liquid applied to the photo imaging member. In the second position, the biasing member is configured to cause the second cleaning member to contact the first cleaning member to clean the second cleaning member.

Described herein are methods of cleaning liquid electrophotographic printers and liquid electrophotographic cleaning compositions for use in such methods. The cleaning compositions comprise a resin and a charge director dispersed in a carrier liquid. The cleaning compositions comprise from about 3 wt. % to about 6 wt. % non-volatile solids (NVS). The methods comprise flushing upstream ink feed components of the liquid electrophotographic printer with the cleaning compositions.