Abstract: A roller pair includes lower and upper rollers that contact each other at a conveyance path. A platen is located downstream of the roller pair in the conveyance path, and has an end facing toward a surface. A recording head faces the platen from above and ejects ink to a sheet. A movement mechanism moves the platen and the lower roller in conjunction with movement of a tray in a drawing direction such that: the end of the platen moves from a first support position at which the platen supports a sheet to a first lower position at which the platen is separated farther downward from the recording head than at the first support position; and the lower roller moves from a contact position at which the lower roller contacts the upper roller to a second lower position at which the lower roller is separated downward from the upper roller.

Abstract: A print device includes: a first opening via which a print medium is to be inserted or ejected; a second opening via which the print medium is to be ejected; a transport roller that transports the print medium; a housing that contains a transport route; a first sensor that detects presence of the print medium; and a second sensor that detects the presence of the print medium on an upstream side of the first sensor; and a processor. When a command designates the print medium to be ejected to the outside via the second opening and a length of the print medium determined from the detection states of the first and the second sensors is shorter than or equal to a predetermined length, the processor ejects the print medium to the outside via the first opening.

Abstract: A printing apparatus for printing on a front surface of a printing medium, and thereafter printing on a back surface of the printing medium. The apparatus includes the following elements: a front surface print head for printing a cue mark, and printing a front surface image based on front surface image data with reference to the cue mark; a back surface image data corrector for creating corrected back surface image data based on elasticity information in a transport direction after printing of the front surface image; a detector for detecting the cue mark; and a back surface print head for printing the corrected back surface image data on the back surface of the printing medium with reference to the cue mark detected by the detector.

Abstract: A printing apparatus includes: a printing unit configured to perform printing on a sheet; a driving unit configured to apply a rotational force to a roll member that is rotatably held; and a pressing unit having a roller configured to apply a pressing force to an outer peripheral surface of a roll sheet wound around the roll member, wherein the pressing unit changes the pressing force during a sequence in which the driving unit applies a rotational force to the roll member and a sheet that has passed through the printing unit is wound.

Abstract: The present application provides an overprint orientation system. The overprint orientation system may include a first printer for printing on a substrate a first field and one or more orientation indicators within a second field, a second printer for overprinting the second field, and an orientation sensor. The orientation sensor determines whether the orientation indicators are visible.

Abstract: A duplex printer system includes a double-sided label web and a duplex printer operable to print both sides of the label web. The label includes exposed adhesive on a first side thereof. The duplex printer includes a printer frame and first and second print heads arranged to print respective sides of the label web. The first print head is shiftably mounted relative to the printer frame for movement into and out of a printing position, in which the first print head is operable to print within a printable region of the first side. The first print head is selectively shifted out of the printing position so as to avoid contact with exposed adhesive during label web advancement. The first print head includes a printer interface positioned in printing engagement with the label web when the first print head is shifted to the printing position.

Abstract: An image processing method includes a page layout adjustment step of converting image data to create print data having a page layout such that, when printed sheets each of which has a specified number of pages are discharged from an image formation apparatus thereby forming a stack of the printed sheets in the discharged order and in a case where the stack of the printed sheets are cut into the specified number of separated stacks corresponding to the page layout, the stack order of the cut printed sheets in each of the separated stacks corresponds to a sequence page order.

Abstract: A printing apparatus is an apparatus capable of performing double-sided printing on a sheet, and is provided with a receiving portion and a control portion. The receiving portion receives an instruction for changing a sheet having one side printed that is set to a paper feed tray into a sheet having both sides printed with same printing content. The control portion performs control, when the instruction is received, to feed the sheet having one side printed from the paper feed tray, and when the fed sheet is an odd-numbered page and is a final page, to discharge the sheet without newly performing printing, and when the fed sheet is an odd-numbered page and is not a final page, to print information printed on a next even-numbered page on a back side of the sheet.

Abstract: Upon designating bookbinding print, preview images are displayed in a layout after bookbinding. When “store” of intermediate data is designated in a print process, a spooler (302) stores intermediate data and an output job setup file in a spool file (303). When the stored job is selected, a previewer (306) displays a list of jobs, and displays a print preview image. In this case, upon setting bookbinding print, pages are displayed in a spread state and order after bookbinding. Also, the open direction (right or left open), and the bookbinding unit are also expressed on preview images.

Abstract: The first image which is a continuous image divided into pages is printed on the first surface of web by the first printer, and the start mark is printed at the head of each page. The second image which is a continuous image is printed on the second surface by the second printer in synchronization with recording synchronization pulses. In printing of the second image, obtained is a difference between the number of pulses inputted to the second printing mechanism between detections of preceding and succeeding start marks, and the number of pulses estimated to be inputted thereto in the case where expansion or shrinkage of web doesn't occur, to adjust the frequency of pulses on the basis of the difference. Therefore, the second image is printed in accordance with the first image on the web without being affected by expansion or shrinkage of web.

Abstract: An image recording apparatus includes an apparatus main-body, a tray, a first transporting path including a curved portion and an extending portion connected to the curved portion, a feed roller which feeds a sheet from the tray to the first transporting path, a transporting roller which transports the sheet, a recording portion which records an image on the sheet transported through the extending portion, a first guide member defining an outer wall of the curved portion, a second guide member defining an inner wall of the curved portion, a second transporting path which connects a portion of the extending portion and a portion of the curved portion, a third guide member defining an upper wall of the second transporting path, a fourth guide member defining a lower wall of the second transporting path, and a fifth guide member provided to a rotating front-end side of the fourth guide member.

Abstract: There is provided an image recording apparatus including: a first transporting portion with a first transporting path formed to guide a sheet with its recording surface facing upward, a recording portion, a transporting roller, a second transporting portion with a second transporting path, a first flap, a sandwiching member sandwich the sheet between itself and the first flap, and a second flap. The first flap turn between a first position being able to guide the sheet along the first transporting path and a second position spaced downward from the sandwiching member farther than in the first position, and the second flap change between a third position for a third surface to define a guide surface of the second transporting path and a fourth position to open up the second transporting path.

Abstract: A control unit includes a memory storing correction data obtained by associating information acquired by a first acquisition unit (rotary encoder) with information acquired by a second acquisition unit (direct sensor) with respect to, at least one rotation of a conveying roller. When a plurality of images are sequentially printed on a first surface and a second surface of a continuous sheet, the control unit reads the correction data corresponding to the rotation information acquired by the first acquisition unit from the memory and corrects at least one of driving control of a print head and driving control of the roller. The correction data used in printing on the first surface of the sheet is different from that used in printing on the second surface of the sheet.

Abstract: A printer capable of printing two surfaces of a medium is disclosed in the present invention. The printer includes a base, a holder rotatably disposed on the base for holding webs, and a rotary mechanism for rotating the holder relative to the base. The rotary mechanism includes a wheel disposed on the holder, and a gear crank disposed on the base. A plurality of slots is formed on the wheel, and the gear crank includes an actuating pin. The actuating pin can slide into one of the slots when the gear crank rotates, so as to rotate the wheel, and the holder can rotate relative to the base.

Abstract: A media processing device and control method for a media processing device enable accurately setting and detecting the home position of a carriage without using a dedicated sensor. Scales 56, 62 having a plurality of wide slits 65 formed at equal intervals and a narrow slit 66 at one end 56A, 62A are disposed parallel to carriage shafts 53, 60. Carriage sensors 55, 61 scan the scales 56, 62 while the carriages 52, 58 move bidirectionally, and detect the wide slits 65 and the narrow slits 66. To initialize the carriages 52, 58, the carriages 52, 58 are moved specific distance L away from the one end 56A, 62A, and the carriages 52, 58 are then reversed and moved until the carriage sensors 55, 61 detect the narrow slits 66. The home position HP is set based on where the narrow slit 66 is detected.

Abstract: A conveyance mechanism includes a first conveyed material storage section and a second conveyed material storage section that respectively store a first conveyed material and a second conveyed material. When a position of the first conveyed material storage section is changed to a conveyed position where the first conveyed material is to be conveyed, a discharge destination of a discharge member is switched to a first conveyed material discharge section. When the position of the first conveyed material storage section is changed to an evacuation position evacuated from the conveyed position, the discharge destination of the discharge member is switched to a second conveyed material discharge section.

Abstract: In printing data of a plurality of pages on a continuous sheet, it is determined whether the data is to be printed on a single side of the continuous sheet or on both sides thereof. A first sequence of pages arranged on a first side of the continuous sheet occurring when it is determined that the data is to be printed on the single side and a second sequence of pages arranged on the first side of the continuous sheet occurring when it is determined that the data is to be printed on the both sides such that the first and second sequences are opposite to each other. Each of the first and second sequences indicates whether the pages are arranged in descending order or in ascending order.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: Embodiments described herein are directed to registering media in a duplex printing system. A first side of a sheet of media is registered in a first pass in response to detection of a first end of the sheet. A registration marker is deposited on the sheet proximate to a second end of the sheet in the first pass. The registration marker can include a marking material that is in the non-visible light range. A second side of the sheet is registered in a second pass in response to detection of the registration marker deposited on the sheet.

Abstract: A printing control apparatus may execute printing on a continuous sheet by using a printing unit. The printing control apparatus includes a reversal unit, an input unit, and a printing control unit. In executing printing by the printing unit on both surfaces of the continuous sheet, the reversal unit reverses the continuous sheet to execute printing on a second surface after executing printing on a first surface. If the printing on the first surface currently is being executed by the printing unit to execute two-sided printing of a preceding job based on a preceding job in a case where an instruction for interruption printing is input by the input unit, the printing control unit executes the interruption printing according to the instruction subsequent to the printing on the first surface of the continuous sheet based on the preceding job, and supplies the printed continuous sheet to the reversal unit.

Abstract: A printing apparatus comprising: a printing section including a conveyer, a reconveyer, and a printer; a sensor; a determination section; and a controller. The determination section determines whether a pair of the first sheet and the second sheet is eligible for the high-speed duplex printing based on the combination of the length of the first sheet and the length of the second sheet before the second sheet conveyed by the reconveyer. The controller controls the printing section to convey the first sheet and the second sheet to the reconveyer when the pair of the length of the first sheet and the second sheet is eligible for the high-speed duplex printing, and controls the printing section to eject at least one of the first and the second sheet when the pair of the length of the first and the second sheets is not eligible for the high-speed duplex printing.

Abstract: With front face printing, the sheet fed from a sheet feeding unit is led into a nipped position between a first pinch roller and a decurling roller from a first direction, and is discharged by decurling force being applied thereto at the decurling roller. On the other hand, the sheet fed from a reverse unit is led into the nipped position from a second direction opposite to the first direction, and is discharged by decurling force being applied thereto at the decurling roller.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: An apparatus includes a reverse unit configured to wind a sheet printed at a print unit around the reverse unit and to reverse the sides of the sheet, and the reverse unit includes a winding rotary member having a cylindrical shape, and a skew correcting unit configured to correct skewing of sheets to be led into the winding rotary member.

Abstract: The invention describes a sheet conveying device having a feed tray for storing sheets, a first conveying path for conveying a first sheet in a first direction, a feed roller that feeds the sheets in the feed tray to the first conveying path, a second conveying path that connects the first conveying path and the feed tray, and conveys the first sheet in a direction opposite the first direction, and a multiple feed guide in the second conveying path, which has a guide for guiding the first sheet between the feed roller and the feed tray, and an overlying portion which overlies the feed tray on one side of the feed roller. The feed roller feeds the first sheet that was fed to the first conveying path, and was guided by the multiple feed guide, back to the first conveying path. A duplex printer incorporates this sheet conveying device.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: A recording device includes a feed tray for storing sheets, a first conveying path, an arm having one end attached to a pivot, and a roller attached to the other end of the arm. The roller feeds the sheet to the first conveying path. A recording unit is positioned in the first conveying path, and records an image onto the sheet. The recording device also includes a second conveying path between the pivot and the feed tray, and a path changing unit. The path changing unit moves between a first position, where it discharges the sheet, and a second position, where it conveys the sheet to the second conveying path. The arm moves between a third position where the roller contacts the sheets in the feed tray, and a fourth position where the roller is above the second conveying path.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: An image recording device includes: a tray having a placing surface; a feed unit comprising a rotating member configured to move in a first direction away from the placing surface of the tray and move in a second direction toward the placing surface of the tray; a frictional member disposed on the placing surface; a recording unit; a conveying unit configured to return the sheet, on one side of which the image has been recorded by the recording unit, to the placing surface; and a moving mechanism configured to move the rotating member in the first direction and in the second direction. The moving mechanism is configured to move the rotating member in the first direction before a leading end of the sheet returned by the conveying unit reaches the frictional member in a state where no sheet is placed on the tray.

Abstract: A thermal printer and a control method for a thermal printer enable increasing throughput before a printing process starts by starting a duplex printing process without waiting to convert all print data into the front print buffer and back print buffer, enable executing a duplex printing process on a print medium without using a front print buffer and a separate back print buffer, and enable switching between simplex printing and duplex printing according to a specific command.

Abstract: A recording device that records images on both sides of a recording medium using two recording heads suppresses slack in the recording medium and conveys the recording medium reliably. A first recording unit 21 holds and conveys the roll paper 20 between a first recording head 22 that records images to one side of the roll paper 20 and a first platen roller 27. A second recording unit 41 located downstream from the first recording unit 21 holds and conveys the roll paper 20 between a second recording head 42 that records images to the other side of the roll paper 20 and a second platen roller 47. The first platen roller drive unit turns so that the circumferential speed of the second platen roller 47 is faster than the circumferential speed of the first platen roller 27.

Abstract: A recording device includes a feed tray for storing sheets, a first conveying path, an arm having one end attached to a pivot, and a roller attached to the other end of the arm. The roller feeds the sheet to the first conveying path. A recording unit is positioned in the first conveying path, and records an image onto the sheet. The recording device also includes a second conveying path between the pivot and the feed tray, and a path changing unit. The path changing unit moves between a first position, where it discharges the sheet, and a second position, where it conveys the sheet to the second conveying path. The arm moves between a third position where the roller contacts the sheets in the feed tray, and a fourth position where the roller is above the second conveying path.

Abstract: An information processing apparatus that can be connected to an image-forming apparatus, a method, and a program used for the information processing apparatus are disclosed. The information processing apparatus comprises a control unit for controlling print-setting information set for document data to be printed, a recognition unit for recognizing information about a first function specified by the print-setting information by translating the print-setting information controlled by the control unit, an obtaining unit for obtaining information about a second function of the image-forming apparatus connected to the information processing apparatus, a determination unit for determining whether or not the image-forming apparatus can perform the first function recognized by the recognition unit based on the second-function information obtained by the obtaining unit, and a modification unit for modifying the print-setting information controlled by the control unit based on the determination result.

Abstract: The present invention relates to a duplex printing apparatus. The duplex printing apparatus includes a paper input tray, a paper ejecting tray, a paper pick-up roller, a paper feeding channel, a first paper transfer roller assembly, a scanning and developing print unit, a print region, a paper ejecting channel, a second paper transfer roller assembly, an inverting channel, a paper guide slice, a third paper transfer roller assembly and a paper ejecting roller assembly. By arranging the inverting channel between the print region and the paper ejecting tray, the printing speed is enhanced.

Abstract: An ADU is turned around a first hole section that operates as fulcrum and opened by a first angle relative to the lateral side of an apparatus main body when dissolving a jam. The lateral side cover is temporarily taken away from a stationary side plate when maintenance the inside of a color copying machine. Then, a second engaging pin is put into a second hole section to engage the lateral side cover with the stationary side plate. The ADU is turned around the second hole section that operates as fulcrum and opened by a second angle greater than the first angle.

Abstract: The invention provides for a flat panel display unit. The unit includes a rear cover molding defining an aperture therein, a base portion, arm and mounting plate fast with the rear cover molding to support the display unit in an upright position, and a pagewidth printer with an ink delivery bus operatively accessible via the aperture for receiving an ink cartridge. The unit further includes a chassis defining a chute for receiving print media therein, said chassis supporting a flat panel display, and a front bezel molding operatively fast with the rear cover molding to enclose the printer, chassis and display.

Abstract: In a printer, a first section is sized to accommodate a rolled sheet therein. A printing head is horizontally movable along a moving path extending in a first direction and operable to perform printing on a part of the rolled sheet which is drawn out from the first section. A second section is provided on a first side of the first section relative to the first direction. A third section is provided on a second side of the first section relative to the first direction opposite to the first side. A control board on which a circuit operable to control an operation of the printer is mounted is disposed in the first section so as to extend vertically. An ink supplying member is disposed in the third section that supplies ink to the printing head. The moving path is longer than a dimension of the first section in the first direction.

Abstract: A computer monitor is provided which has a flat panel display for displaying images and an inkjet printhead disposed adjacent a lower portion of the computer monitor. The monitor is configured such that print media to be printed is fed manually into a feed path that directs the print media from a region adjacent the upper edge of the flat panel display, past the printhead for printing, then out of the monitor adjacent a lower edge of the flat panel display.

Abstract: A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.

Abstract: A thermal printer includes a first thermal head, a first platen roller, first biasing means, a second thermal head, a second platen roller, and second biasing means. The first thermal head, the first platen roller, the first biasing means are in contact with a heat-sensitive layer of thermal recording paper. The second thermal head, the second platen roller, and the second biasing means are in contact with a heat-sensitive layer of the thermal recording paper. The second thermal head is arranged on the upstream side of the first thermal head in a paper feed direction. A paper feed speed of the first platen roller to the thermal recording paper is larger than a paper feed speed of the second platen roller. The first platen roller is in contact with the thermal recording paper while being more slippery compared with the second platen roller.

Abstract: A printer includes a first print head that performs printing on one side surface of the print medium and a second print head that performs printing on the other side surface of the print medium and abnormality detection sensors that are attached respectively to the first and second print heads. A printer performs control such that in the case where any abnormality is detected in one of the first and second print heads, print data to be printed using one print head in which the abnormality has been detected is printed using the other print head which is normally operating.

Abstract: Provided is a printer capable of achieving its miniaturization and lightness. The printer includes: a roll accommodation unit (2) for retaining a heat-sensitive adhesive sheet (1) wound into a roll; a cutter unit (3) for cutting the heat-sensitive adhesive sheet (1); a printing/thermal activation unit having a printing thermal head (4) for performing printing on a printing surface of the heat-sensitive adhesive sheet (1) and a thermally-activating thermal head (5) for performing thermal activation on a heat-sensitive adhesive surface of the heat-sensitive adhesive sheet (1); and a stocking unit having a take-up device (6) for temporarily stocking the heat-sensitive adhesive sheet (1) by taking up the sheet on a take-up roller (6a).

Abstract: Provided is a method of printing with a print assembly having first and second print engines arranged in an opposing in-line sequential configuration along a paper path. The method includes the steps of drawing a sheet of paper into the first print engine, printing image data onto the sheet via the first and second print engines, printing fixative onto the paper to aid drying of ink, and binding the printed sheet into a document using a binding assembly of the print assembly.

Abstract: A printing arrangement includes a driving station configured to drive print media along a path. The driving station includes a pair of opposed pinch rollers between which the print media can be pinched when driven. A printing station is configured to print upon the print media. The printing station includes a pair of opposed printheads on opposite sides of the path and between which the print media can pass to be printed on opposite sides. An adhesive application station is configured to apply adhesive to the print media. The adhesive application station includes a pair of applicators on opposite sides of the path and is configured to apply respective parts of a two-part adhesive to opposite sides of the print media.

Abstract: An image forming apparatus using a thermal printing head (TPH) and a printing method thereof to print a borderless image on both sides of a printing medium. The image forming apparatus includes first and second feeding units respectively disposed at front and rear sides of the TPH to transfer the printing medium at a predetermined printing speed and a pair of out-feed rollers that co-rotates and feeds out the printing medium, in which one of the out-feed rollers rotates in contact with the pick-up roller. A platen roller co-rotates in contact with the printing medium fed by the first and second feeding units The TPH has a printing position in which the TPH is pressed towards the platen roller to form a printing nip, and an open position in which the TPH is separated from the platen roller. The knock-up plate has a pick-up position where the printing medium comes in contact with the pick-up roller and a stand-by position where the printing medium loaded thereon is separated from the pick-up roller.

Abstract: An ADU is turned around a first hole section that operates as fulcrum and opened by a first angle relative to the lateral side of an apparatus main body when dissolving a jam. The lateral side cover is temporarily taken away from a stationary side plate when maintenance the inside of a color copying machine. Then, a second engaging pin is put into a second hole section to engage the lateral side cover with the stationary side plate. The ADU is turned around the second hole section that operates as fulcrum and opened by a second angle greater than the first angle.