A printing system may include a printing module, a measurement device, and a correction device. The printing module performs printing processes on a substrate. The printing processes include a first printing process based on a first pulse number. The measurement device may obtain image data for the substrate before and after the first printing process. The correction device may use the image data to obtain information indicating a change in a separation between first and second reference marks on the substrate before and after the first printing process. The correction device may then determine a second pulse number based on the information and control the printing module to perform a second printing process that is based on the second pulse number.

A printing system may include a printing module, a measurement device, and a correction device. The printing module performs printing processes on a substrate. The printing processes include a first printing process based on a first pulse number. The measurement device may obtain image data for the substrate before and after the first printing process. The correction device may use the image data to obtain information indicating a change in a separation between first and second reference marks on the substrate before and after the first printing process. The correction device may then determine a second pulse number based on the information and control the printing module to perform a second printing process that is based on the second pulse number.

A system is disclosed. The system comprises one or more print controllers to generate print interrupt instructions in response to receiving a web splice signal indicating that a web splice on a web print medium has been detected, wherein the print interrupt instructions indicate a first side sheet image and a second side sheet image within a print job to pause prior to stopping printing, wherein the print interrupt instructions comprise gap instructions to open a first printhead gap at the first print engine and to open a second printhead gap at the second print engine, control printing of the first side sheet image on a first side of a web at a first print engine based on the print interrupt instructions, control printing of the second side sheet image to a second side of the web at a second print engine based on the print interrupt instructions, wherein the print interrupt instructions are generated based on a determination of an interrupted first side sheet image to be paused prior to opening the first printhead gap and a determination of an interrupted second side sheet image to be paused prior to opening the second printhead gap.

A system is disclosed. The system comprises one or more print controllers to generate print interrupt instructions in response to receiving a web splice signal indicating that a web splice on a web print medium has been detected, wherein the print interrupt instructions indicate a first side sheet image and a second side sheet image within a print job to pause prior to stopping printing, wherein the print interrupt instructions comprise gap instructions to open a first printhead gap at the first print engine and to open a second printhead gap at the second print engine, control printing of the first side sheet image on a first side of a web at a first print engine based on the print interrupt instructions, control printing of the second side sheet image to a second side of the web at a second print engine based on the print interrupt instructions, wherein the print interrupt instructions are generated based on a determination of an interrupted first side sheet image to be paused prior to opening the first printhead gap and a determination of an interrupted second side sheet image to be paused prior to opening the second printhead gap.

An image erasing apparatus according to an embodiment includes a sheet supply portion that supplies a sheet and an ejector. A first conveying path conveys the sheet from the sheet supply portion toward the ejector. A reader arranged on the first conveying path reads an image on the sheet. A second conveying path branches from the first conveying path at a downstream of the reader on the first conveying path and merges with the first conveying path at an upstream of the reader on the first conveying path. An erasing unit is arranged on the second conveying path. A conveying path changing portion is arranged at a branching portion. An operating portion receives a setup of the processing to the sheet. A controller changes a conveying path of the sheet in accordance with the setup received by the operating portion before the sheet is supplied from the sheet supply portion.

An image erasing apparatus according to an embodiment includes a sheet supply portion that supplies a sheet and an ejector. A first conveying path conveys the sheet from the sheet supply portion toward the ejector. A reader arranged on the first conveying path reads an image on the sheet. A second conveying path branches from the first conveying path at a downstream of the reader on the first conveying path and merges with the first conveying path at an upstream of the reader on the first conveying path. An erasing unit is arranged on the second conveying path. A conveying path changing portion is arranged at a branching portion. An operating portion receives a setup of the processing to the sheet. A controller changes a conveying path of the sheet in accordance with the setup received by the operating portion before the sheet is supplied from the sheet supply portion.

A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.

A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.

A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.

A sheet processing apparatus comprises a sheet placing section in which recording media are stacked, a storage section configured to record a total amount of toner on the recording media stacked in the sheet placing section, and a control section configured to determine whether or not the recording media stacked in the sheet placing section is likely to stick when a new recording medium is stacked thereon, based on the total amount of toner on the recording media stacked in the sheet placing section.