A pre-dryer for continuous feed or cut sheet systems is described. Such a module can be used in various applications, for example, prior to printing where the time constant for fusing and glossing is long enough that the substrate temperature essentially equilibrates with that of the marking material on the surface of the sheet. The pre-dryer may be part of an image forming device. Substrates, including paper, typically have high moisture content in normal atmospheric conditions. Such substrates may have a moisture content of about 10% water by weight, which is considered high for printing. Such high moisture content in image receiving substrates leads to various artifacts and extends heating times to take the substrate to its glossing temperature that are about four times longer than for dry media. This longer heating time translates to undesirably longer paper paths or nip lengths.

A pre-dryer for continuous feed or cut sheet systems is described. Such a module can be used in various applications, for example, prior to printing where the time constant for fusing and glossing is long enough that the substrate temperature essentially equilibrates with that of the marking material on the surface of the sheet. The pre-dryer may be part of an image forming device. Substrates, including paper, typically have high moisture content in normal atmospheric conditions. Such substrates may have a moisture content of about 10% water by weight, which is considered high for printing. Such high moisture content in image receiving substrates leads to various artifacts and extends heating times to take the substrate to its glossing temperature that are about four times longer than for dry media. This longer heating time translates to undesirably longer paper paths or nip lengths.

The printing medium M after color printing is performed on the front surface M1 (recording surface) by the color printing unit 32 can be conveyed while the front surface M1 and the back surface M2 of the printing medium M are inverted twice by the only rollers 471 to 478 (rotary bodies) in contact with the back surface M2 (non-recording surface) of the printing medium M (inverting conveying part 47). In this way, without providing air turn bars, a time to convey the printing medium M from the color printing unit 32 to the white printing unit 33 can be secured while the printing medium M is firmly supported by the rollers 471 to 478 in contact with the back surface M2 of the printing medium M.

A drying device includes a first-heating rotator configured to contact a sheet twice from different directions, and at least three second-heating rotators each configured to contact the sheet once. The at least three second-heating rotators are in a conveyance path configured to guide the sheet to contact the first-heating rotator again after the sheet contacts and passes the first-heating rotator.

A drying device includes a first-heating rotator configured to contact a sheet twice from different directions, and at least three second-heating rotators each configured to contact the sheet once. The at least three second-heating rotators are in a conveyance path configured to guide the sheet to contact the first-heating rotator again after the sheet contacts and passes the first-heating rotator.

Systems and methods for dryer rollers of a print system with increasing wrap angles. In one embodiment a dryer includes a turning device configured to rotate about an axis, and to guide a web of print media. The dryer also includes rollers configured to transport the web from an entrance of the dryer to the turning device. The rollers include a series of three or more rollers positioned in the dryer to consecutively increase an amount of contact area with the web as the web travels toward the turning device.

In an method for double-sided printing to a recording medium, a first side of the recording medium is printed to with a liquid first color separation, the liquid first color separation is pre-dried such that a predetermined final drying state remains unachieved, where the pre-dried state is a transportable intermediate state that is between a wet print image directly after printing and the predetermined final drying state, a second side of the recording medium is printed to with a liquid second color separation, and the pre-dried first color separation and the second liquid color separation are jointly dried to entirely achieve the predetermined final drying state for both the first and second color separations.

A pre-dryer for continuous feed or cut sheet systems is described. Such a module can be used in various applications, for example, prior to printing where the time constant for fusing and glossing is long enough that the substrate temperature essentially equilibrates with that of the marking material on the surface of the sheet. The pre-dryer may be part of an image forming device. Substrates, including paper, typically have high moisture content in normal atmospheric conditions. Such substrates may have a moisture content of about 10% water by weight, which is considered high for printing. Such high moisture content in image receiving substrates leads to various artifacts and extends heating times to take the substrate to its glossing temperature that are about four times longer than for dry media. This longer heating time translates to undesirably longer paper paths or nip lengths.

A drying device includes a first-heating rotator configured to contact a sheet twice from different directions, and at least three second-heating rotators each configured to contact the sheet once. The at least three second-heating rotators are in a conveyance path configured to guide the sheet to contact the first-heating rotator again after the sheet contacts and passes the first-heating rotator.

A drying device includes a first-heating rotator configured to contact a sheet twice from different directions, and at least three second-heating rotators each configured to contact the sheet once. The at least three second-heating rotators are in a conveyance path configured to guide the sheet to contact the first-heating rotator again after the sheet contacts and passes the first-heating rotator.