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Ricoh Pro C9500 Advanced Settings

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Shared Maintenance Offering:
Advanced Settings for Custom Paper
Original Instructions
For safe and correct use, be sure to read Safety Information
separately provided before using the machine.

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Summary of Contents for Ricoh Pro C9500

  • Page 1 Shared Maintenance Offering: Advanced Settings for Custom Paper Original Instructions For safe and correct use, be sure to read Safety Information separately provided before using the machine.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. Introduction Basic Procedure..............................3 Advanced Settings..............................4 2. Printing Process Overview................................5 Laser Exposure..............................7 Laser Unit (Exposure)............................. 7 Development............................... 8 Development..............................8 Photoconductor unit-to-Belt Transfer.......................10 Photoconductor unit-to-Belt Transfer......................10 Belt-to-Paper Transfer............................11 Belt-to-Paper Transfer..........................11 Paper transfer belt Rotation Speed......................13 Fusing................................
  • Page 4 Image Transfer Output..........................34 Paper Transfer.............................. 35 Fusing................................38 Paper Feed/Delivery............................43 Main Tray/Vacuum Feed LCIT........................43 Bypass Tray..............................49 Adjusting the Machine’s Paper Delivery and Output................50 Interposer..............................55 Finisher: Output............................55...

  • Page 5: Introduction

    This chapter provides an overview of the Media Library. Basic Procedure Pro C9500 Series is capable of printing on a wide variety of media using the latest technologies in digital printing such as the AC transfer and elastic fusing belt.

  • Page 6: Advanced Settings

    1. Introduction Advanced Settings Printing from the Media Library is possible with a simple procedure, however, precise adjustments (such as the transfer and fusing conditions) may be required depending upon the media attributes, which differ by each and every media. Such precise adjustments can be made from [Media] hub [Detailed settings].

  • Page 7: Printing Process

    2. Printing Process This chapter provides explanation on the basic Xerographic process of the engine by referring to the items of the Detailed settings. Overview M0EDIC1100 1. Photoconductor unit 2. Development roller 3. Laser unit 4. Charger unit 5. Intermediate transfer belt 6.
  • Page 8 2. Printing Process • Development …… The development roller [2] carries toner to the latent image on the Photoconductor unit [1]. • Image transfer • Photoconductor unit-to-belt transfer …… Toner images created on each Photoconductor unit [1] are transferred sequentially to the intermediate transfer belt [5]. •...

  • Page 9: Laser Exposure

    Laser Exposure Laser Exposure Laser Unit (Exposure) The laser unit is equipped with the Vertical Cavity Surface Emitting Laser (VCSEL) technology. 40 laser beams are emitted to produce 2400dpi×4800dpi. Laser beams are reflected on the polygon mirror and lenses to create a latent image on each of the photoconductive photoconductor units by imparting static electricity on the surface of the photoconductor unit.

  • Page 10: Development

    2. Printing Process Development Development The development system employs the dual-component development method. The developer is pre-mixed to prevent image quality degradation caused by deterioration of the developer that occurs over time. Electrostatic latent image areas of the photoconductor unit attract negatively charged toner particles from the development roller [1].
  • Page 11 Development DZH302 Related Advanced Settings page 34 "Max Image Density"...

  • Page 12: Photoconductor Unit-To-Belt Transfer

    2. Printing Process Photoconductor unit-to-Belt Transfer Photoconductor unit-to-Belt Transfer Among the following two print modes, the correct mode is selected automatically according to the print data sent from the printer controller. • BW mode: Job contains only black data. • FC mode: Job contains color data. Engine status Print (Stations greyed out are inactive.)

  • Page 13: Belt-To-Paper Transfer

    Belt-to-Paper Transfer Belt-to-Paper Transfer Belt-to-Paper Transfer Applied voltage The paper transfer roller features AC transfer technology. Negatively charged toner image (-) on the intermediate transfer belt [2] is transferred to the paper by applying a bias voltage to the paper transfer bias roller [1]. M0EDIC1101 1.
  • Page 14 2. Printing Process Textured paper mode DZH009 1. intermediate transfer belt (ITB) 2. Textured paper 3. Toner is partially transferred. 4. Toner transferred to the paper returns to the belt and combines with toner remaining on the belt. 5. Toner is transferred to the indentations on the surface of the paper. DZH010 1.

  • Page 15: Paper Transfer Belt Rotation Speed

    Belt-to-Paper Transfer • Belt-to-paper transfer: Length of area to apply correction at leading edge of paper • Belt-to-paper transfer: Length of area to apply correction at trailing edge of paper • Current vs. Voltage • Bias is applied using 'constant current' for photoconductor unit-to-belt and belt-to-paper transfer, as this method is resilient to changes in operational environment and thickness of the media.
  • Page 16 2. Printing Process page 51 "Transfer Timing Roller"...

  • Page 17: Fusing

    Fusing Fusing Fuser Unit The fusing belt has a thick elastic layer, as with the previous model, to allow the belt to reach farther into the surface indentations of textured media. New fusing belt Conventional Base layer fusing belt Base layer Elastic layer Elastic layer Surface layer...

  • Page 18: Fusing Nip Width Adjustment

    2. Printing Process In addition, the target fusing temperature is momentarily increased another notch immediately before the pressure roller [3] contacts the fusing belt, to compensate for the slight temperature drop due to the contact. Printing starts when the temperature of the fusing belt and pressure roller reaches the temperature range in which paper feeding is allowed.

  • Page 19: Fusing Belt Smoothing Roller

    Fusing The web is soaked with silicone oil, which is supplied to the pressure roller and the fusing belt in very small amounts. The interval between each cleaning operation can be adjusted in four levels. M0EDIC1105 1. Pressure roller 2. Cleaning web Related Advanced Settings page 39 "Fusing Cleaning"...
  • Page 20 2. Printing Process 3. Scratched fusing belt caused by paper edge 4. Fusing belt surface 5. Scratches 6. Scratches are polished by belt smoothing operation Image quality issues such as gloss streaks and uneven gloss can be resolved by polishing the surface of the fusing belt with the fusing belt smoothing roller [1].

  • Page 21: Paper Delivery

    Skew detection & main scan registration A Ricoh original technology is applied to separately control skew correction and main scan registration, to achieve high accuracy in front-to-back registration. 1. CIS measures the amount of skew.
  • Page 22 2. Printing Process paper passes the registration roller and detecting the border between the background and paper in the image. (Paper alignment is performed based on the detected positional information.) In the image data scanned by the CIS, the value is low for the background area without paper and high for the area with paper, so the position exceeding the threshold is detected as the paper edge.
  • Page 23 Paper Delivery M0EDIC1109 Related Advanced Settings page 50 "Detect JAM080" Roller speed adjustment Every paper transport roller installed in the machine is controlled of the rotation speed according to the basis weight (thickness) of the paper, to support wide variety of media and prevent image quality problems.

  • Page 24: Decurl Unit

    Decurl Unit De-curling mechanism Pro C9500 is installed with three decurler units before the paper exit. To de-curl the sheets, the direction of the curl (face or back) observed on the sheets and the de-curl intensity need to be specified in Advanced Settings. The upper or lower metal roller presses and delivers the sheet to the upper or lower paper path according to the settings.

  • Page 25: Multi Bypass Tray (Tray A)

    Paper Delivery M0EDIC1113 Multi bypass tray (Tray A) The bypass tray is equipped with the Pickup Assist function to assist paper delivery by the pickup roller [4]. In the case of paper delivery delay or paper jam, enabling the Pickup Assist function may solve the misfeed problem.

  • Page 26: Wide Lct

    2. Printing Process 4. Pickup roller 5. Reverse roller 6. Grip roller Related Advanced Settings page 49 "Bypass Tray" Wide LCT The LCIT employs the air-assist pickup, similarly to the paper feed units of offset printers. In addition to paper riffling by the air-assist from both sides of the paper, the upper surface of the paper is suctioned by air one sheet at a time, achieving smoother paper delivery of coated paper and art paper, which tend to stick together, reducing double-feeding and paper misfeeds, and achieving excellent paper delivery.
  • Page 27 Paper Delivery M0EBIC1108 1. Updraft fan nozzle 2. Blower fan nozzle 3. Side fan nozzle 4. Side fan 5. Separation fan 6. Updraft fan 7. Return fan 8. Paper upper limit sensor 1 (High) 9. Paper upper limit sensor 2 (Low)

  • Page 28: Interposer

    2. Printing Process M0EBIC1109 1. Feed Belt 2. Vacuum fan 3. Chamber Related Advanced Settings page 43 "Main Tray/Vacuum Feed LCIT" Interposer Air is blown out to fan and separate even the types of paper that are prone to stick together, and to ensure stable feeding of the paper loaded in the paper tray one by one.
  • Page 29 Paper Delivery M0EBIC1117 1. Air duct 2. Blower fan • Air flow M0EBIC1118 Related Advanced Settings page 55 "Interposer"...

  • Page 30: Finisher/Booklet Finisher

    2. Printing Process Finisher/Booklet Finisher Paper ejection jogger mechanism The finisher is equipped with the paper jogger arm to align the edge of paper at the upper part of the paper exit. Just before the paper is delivered to the finisher shift tray, the paper jogger arm lowers and performs the action (opening and closing) to align the edge of paper.
  • Page 31 Paper Delivery M0EBIC1124 A. For paper types that can be aligned smoothly B. For paper types that cannot be aligned smoothly Related Advanced Settings page 55 "Finisher: Output"...
  • Page 32 2. Printing Process...

  • Page 33: Details Of Detailed Settings

    3. Details of Detailed Settings This chapter explains the functions of the Detailed settings and the related image quality problems that can be prevented/improved by adjusting these settings. For detailed procedure, see the Troubleshooting manual. Overview Print Mode Image quality is adjusted in balance with productivity according to the print mode (BW/FC), which differ in the maximum toner amount, i.e.

  • Page 34: Registration

    3. Details of Detailed Settings Registration Image Position/Magnification Auto Adjust Image Position 1102 [Auto Adjust Image Position] Function • Number of Check Sheets: Front Side Auto Adjust Image Position: Specify the number of sheets for printing the chart used to check the adjustment result after making the adjustment on one side and whenever printing the chart on one side.
  • Page 35 Registration Image Position Feedback Correction 1103 [Image Position Feedback Correction] Function Select the Image Position Feedback Correction mode. If [No Detection Mark] is selected, the image position is adjusted according to the shape of paper. If [Detection Mark] is selected, detection marks are applied on four corners of the paper and image position is adjusted according to the shape of paper and the marks.

  • Page 36: Image Quality

    3. Details of Detailed Settings Image Quality Max Image Density 1201 [Max Image Density] Function Adjusts the amount of toner developed on the Photoconductor unit. When to use To adjust the maximum toner density for the media in use. Note the possible side effects, such as worm track and toner scattering, if set too high. Related Troubleshooting •...

  • Page 37: Paper Transfer

    Image Quality For detailed procedure, see the Troubleshooting manual. Image Transfer Output Correction 1215 [Image Transfer Output Correction] Function Corrects the amount of transfer current applied to the photoconductor unit-to-belt transfer process. When to use If white spots appear, decrease this value. If the leading edge shows density problems or scattered toner or streaks appearing across the feed direction, increase this value.
  • Page 38 3. Details of Detailed Settings • Color Spots • Excessive Density • Low Image Density • White Spots • Mottling For detailed procedure, see the Troubleshooting manual. Paper Transfer Output Correction: Paper Edge 1217 [Paper Transfer Output Correction: Paper Edge] Function Adjusts the amount and area (width) of the bias applied at the leading/trailing edges for the belt- to-paper transfer process.
  • Page 39 Image Quality Related Troubleshooting • White Spots • Excessive Density For detailed procedure, see the Troubleshooting manual. High Duty: Environmental Correction 1219-1222 [High Duty AC: AC Environmental Correction: MH] [BW] [High Duty AC: DC Environmental Correction: MH] [BW] [High Duty AC: AC Environmental Correction: MH] [FC] [High Duty AC: DC Environmental Correction: MH] [FC]...

  • Page 40: Fusing

    3. Details of Detailed Settings Related Troubleshooting • Horizontal Streaks • Color Spots • White Spots • Excessive Density For detailed procedure, see the Troubleshooting manual. Paper Transfer Roller Reverse Rotation 1230 [Paper Transfer Roller Reverse Rotation] Function Adjust the intervals between automatic cleaning of the paper transfer cleaning. (If set to "0", this will not be executed.) Set the intervals shorter when using paper that produces much paper dust.
  • Page 41 Image Quality • White Spots • Creases / Wavy Streaks For detailed procedure, see the Troubleshooting manual. Fusing Pressure Roller On Before Fusing 1242 [Fusing Pressure Roller On Before Fusing] Function The pressure roller comes into contact with the fusing belt before the job starts, so that the pressure roller is well heated in advance.
  • Page 42 3. Details of Detailed Settings When to use An insufficient margin at the leading edge may cause wraparound jams in the fusing unit or affect the images at the leading edge of uncoated paper or coated thin paper. Fusing Nip Width: Paper Type 1245 [Fusing Nip Width: Paper Type] Function Select the paper type to which the nip width between the fusing belt and pressure roller should be...
  • Page 43 Image Quality Fusing Temperature Range 1247 [Fusing Temperature Range] Function Specifies the fusing temperature range that permits paper feeding. Setting a large range enables quick job start, but with the risk of poor fusing. When to use Waiting time is too long, for example, when the job is printed on thin paper or is a mixed media job.
  • Page 44 3. Details of Detailed Settings When to use Use this when the glossiness of the printed sample is not satisfactory. • Gloss Level As the default, this is set to "0" among the 5 levels consisting of -1, 0, +1, +2, and +3. If the print is too glossy, select "-1".

  • Page 45: Paper Feed/Delivery

    Paper Feed/Delivery Paper Feed/Delivery Main Tray/Vacuum Feed LCIT Paper Feed Mode 1301 [Main/2-Tray LCIT: Paper Feed Mode] Function Adjusts the behavior of the fan. Setting option Behavior [Prevent Double Feed The amount of air blown from the float fan and side fan are reduced (Weakest Blow)] by 20% from the value specified in [Detailed settings] for custom paper.
  • Page 46 3. Details of Detailed Settings Updraft Fan Level 1302 [Main/2-Tray LCIT: Fan/Shutter] [Updraft Fan Level] Function Adjusts the amount of air blown to the leading edge to float up the paper. When to use If double-feeds do not improve by setting 1301: [Main/2-Tray LCIT: Paper Feed Mode] to [Prevent Double Feed (Weakest Blow)], decrease the airflow in [Side Fan Level] in steps of 10%.
  • Page 47 Paper Feed/Delivery Face curl Back curl Sheets float up and tend to result in double- Sheets get pressed down and tend to result in feeds. non-feeds. Side Fan Level 1302 [Main/2-Tray LCIT: Fan/Shutter] [Side Fan Level] Function Adjusts the amount of air blown from the side fans to separate the sheets. When to use If double-feeds do not improve by setting 1301: [Main/2-Tray LCIT: Paper Feed Mode] to [Prevent Double Feed (Weakest Blow)], decrease the airflow in [Updraft Fan Level] in steps of...
  • Page 48 3. Details of Detailed Settings 1302 [Main/2-Tray LCIT: Fan/Shutter] [Vacuum Fan Level: 2-Tray LCIT] Function Adjusts the amount of air sucked against the paper feed belt. * If non-feeds occur due to low air suction power, increase the power. When to use If double-feeds do not improve by setting 1301: [Main/2-Tray LCIT: Paper Feed Mode] to [Prevent Double Feed (Weakest Blow)], increase the airflow in steps of 10%.
  • Page 49 Paper Feed/Delivery Function Turn on or off the return fan shutter in 2-Tray LCIT. If set to On, the shutter opens and closes per sheet. If set to Off, the shutter remains open. When to use As the default, this is set to On. Normally, this is not set to Off, because doing so reduces the power to separate paper.
  • Page 50 3. Details of Detailed Settings Increasing the length of time for the fan to operate enhances the degree of paper separation, but it also increases the intervals between paper feeding and may reduce the throughput. Related Troubleshooting • Double Feeding •...

  • Page 51: Bypass Tray

    Paper Feed/Delivery When to use If paper misfeeds persist even after setting the assist mode to On, enter the measured paper thickness (in units of µm). If the entered paper thickness is not appropriate, paper misfeeds or double-feeding paper jams may occur. Related Troubleshooting •...

  • Page 52: Adjusting The Machine's Paper Delivery And Output

    3. Details of Detailed Settings Adjusting the Machine’s Paper Delivery and Output Correct Paper Curl 1311 [Correct Paper Curl] Function Specifies the amount of airflow from the fans to de-curl face-up or face-down curled stocks when feeding. When to use Use this when the sock is observed with curls and causes jams or dog-ear folds or poor stacking.
  • Page 53 Paper Feed/Delivery Detect/Control JAM097/098 / JAM097/JAM098 1321 [Jam Detection] 02: [Detect/Control JAM097/098] 1321 [Jam Detection] 04: [JAM098] 1321 [Jam Detection] 05: [JAM097] Function Specifies whether or not to automatically detect paper skew. When to use Deactivate this setting, if J097/J098 occurs frequently. However, do so only after confirming that adjusting 1321-06: [Paper Edge Detection] does not resolve the jam.
  • Page 54 3. Details of Detailed Settings Related Troubleshooting • Horizontal Streaks • Uneven Density • Mottling For detailed procedure, see the Troubleshooting manual. Paper Transfer Belt 1331 [Motor Speed] [Speed Adjustment] 02: [Paper Transfer Belt] Function Adjusts the paper transfer belt speed. When to use If a problem such as side-to-side image magnification misalignment and mottling on black half-tone parts occurs in the printed image because of the speed difference relative to the intermediate...
  • Page 55 Paper Feed/Delivery If such image degradation occurs, it can be resolved by increasing the fusing belt line speed. It is also necessary to change the setting (-0.5% from that for the SRA3 or smaller size paper) on [Detailed settings] for custom paper when loading banner sheets. Related Troubleshooting •...
  • Page 56 3. Details of Detailed Settings Paper Output: Entrance Roller/Decurler Switchback Roller/Cooling Transport Belt 1331 [Motor Speed] [Speed Adjustment] 08: [Paper Output: Entrance Roller] 1331 [Motor Speed] [Speed Adjustment] 09: [Decurler Switchback Roller] 1331 [Motor Speed] [Speed Adjustment] 10: [Cooling Transport Belt] Function Adjusts the motor speed of the above units.

  • Page 57: Interposer

    Paper Feed/Delivery Function In this mode, you can change the paper transfer belt line speed in order to minimize the difference in the side-to-side magnification between those covering high image and low image areas. When to use Use this if image degradation occurs after executing [Image Magnification: Across Feed] and you wish to restore the machine to the previous state.
  • Page 58 3. Details of Detailed Settings For envelopes and other types of paper which are difficult to align, set the jogger's aligning operation to [Off]. M0ED-X072...
  • Page 59 © 2023...
  • Page 60 M0ED-X072...

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