Some examples include a print system including a memory to store instructions and print data of a print job, a processor to execute the instructions in the memory to reference print data of a print job, determine a print parameter of the print job, and transform the print data and the print parameter into a conditioning modifier. The print system includes a print engine to dispense a print substance on a medium based on the print data to generate printed medium, and a conditioner to apply heat and pressure to the printed medium, the conditioner including a pressure roller assembly, and a controller to selectively increase a transport speed the pressure roller assembly based on the conditioning modifier and a position of the printed medium relative to the pressure roller assembly to selectively increase the speed of the printed medium through the conditioner.

Some examples include a print system including a memory to store instructions and print data of a print job, a processor to execute the instructions in the memory to reference print data of a print job, determine a print parameter of the print job, and transform the print data and the print parameter into a conditioning modifier. The print system includes a print engine to dispense a print substance on a medium based on the print data to generate printed medium, and a conditioner to apply heat and pressure to the printed medium, the conditioner including a pressure roller assembly, and a controller to selectively increase a transport speed the pressure roller assembly based on the conditioning modifier and a position of the printed medium relative to the pressure roller assembly to selectively increase the speed of the printed medium through the conditioner.

The present disclosure is drawn to printing systems. In one example, a printing system can include an inkjet print head and a plasma generator. The inkjet print head can be used to form a printed image on a media substrate. The plasma generator can be positioned with respect to the inkjet print head to treat the printed image after application to the media substrate.

The present disclosure is drawn to printing systems. In one example, a printing system can include an inkjet print head and a plasma generator. The inkjet print head can be used to form a printed image on a media substrate. The plasma generator can be positioned with respect to the inkjet print head to treat the printed image after application to the media substrate.

A pre-treatment fixing fluid for an offset coated medium is disclosed. The pre-treatment fixing fluid includes calcium-containing cationic crashing agents consisting of calcium propionate and calcium nitrate, wherein the calcium propionate is present in an amount ranging from about 0 wt % to about 10 wt %, and wherein the calcium nitrate is present in an amount ranging from about 15 wt % to 0 wt %, both based on the total wt % of the pre-treatment fixing fluid. The pre-treatment fixing further includes a co-solvent, a surfactant, and a balance of water. The surfactant is selected from the group consisting of a first surfactant having a first hydrophilic lipophilic balance (HLB) value within a hydrophobic range and a combination of the first surfactant and a second surfactant having a second HLB value within a water dispersible range.

A pre-treatment fixing fluid for an offset coated medium is disclosed. The pre-treatment fixing fluid includes calcium-containing cationic crashing agents consisting of calcium propionate and calcium nitrate, wherein the calcium propionate is present in an amount ranging from about 0 wt % to about 10 wt %, and wherein the calcium nitrate is present in an amount ranging from about 15 wt % to 0 wt %, both based on the total wt % of the pre-treatment fixing fluid. The pre-treatment fixing further includes a co-solvent, a surfactant, and a balance of water. The surfactant is selected from the group consisting of a first surfactant having a first hydrophilic lipophilic balance (HLB) value within a hydrophobic range and a combination of the first surfactant and a second surfactant having a second HLB value within a water dispersible range.

A pre-treatment fixing fluid for an offset coated medium is disclosed. The pre-treatment fixing fluid includes calcium-containing cationic crashing agents consisting of calcium propionate and calcium nitrate, wherein the calcium propionate is present in an amount ranging from about 0 wt % to about 10 wt %, and wherein the calcium nitrate is present in an amount ranging from about 15 wt % to 0 wt %, both based on the total wt % of the pre-treatment fixing fluid. The pre-treatment fixing further includes a co-solvent, a surfactant, and a balance of water. The surfactant is selected from the group consisting of a first surfactant having a first hydrophilic lipophilic balance (HLB) value within a hydrophobic range and a combination of the first surfactant and a second surfactant having a second HLB value within a water dispersible range.

The present disclosure is drawn to printing systems. In one example, a printing system can include an inkjet print head and a plasma generator. The inkjet print head can be used to form a printed image on a media substrate. The plasma generator can be positioned with respect to the inkjet print head to treat the printed image after application to the media substrate.

The present disclosure is drawn to printing systems. In one example, a printing system can include an inkjet print head and a plasma generator. The inkjet print head can be used to form a printed image on a media substrate. The plasma generator can be positioned with respect to the inkjet print head to treat the printed image after application to the media substrate.