Ricoh Pro 8410 Troubleshooting Manual

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Page 1 Shared Maintenance Offering: Troubleshooting For safe and correct use, be sure to read Safety Information separately provided before using the machine.
Page 3 TABLE OF CONTENTS 1. Read This First Introduction ........................... 7 How to Read This Manual ...................... 8 Symbols ..........................8 Disclaimer .......................... 8 Notes ..........................8 2. Before You Begin About This Manual ......................... 9 Guide to Components ......................10 About the Display for Options .....................
Page 4 Toner Scatter (3) ......................35 Color Loss ..........................38 White Spots ........................38 Blister-like White Spots ....................39 Mottling ..........................40 Density Problems ......................... 42 Uneven Image Density..................... 42 Uneven Density from Top to Bottom ................44 Fainter Leading Edge ....................... 45 Fainter Trailing Edge ......................
Page 5 If (J034) Appears ......................79 If (J051) Appears ......................83 If (J053) Appears ......................83 If (J069/J156/J157/J171/J172/J185/J186) Appears ..........85 If (J114/J115/J129/J130/J143/J144) Appears ............87 If (J085/J086/J087) Appears When Using Coated Paper ..........90 Paper Skew .......................... 91 Solution: Two-tray Wide LCT ................... 92 Wrong Detection of Skew ....................
Page 6 Cleaning the Paper Feed Path in the Multi Bypass Tray ..........136 Cleaning the Paper Feed Rollers and Paper Feed Belt in the Interposer ....137 Cleaning the Rollers and Guide Boards in the Finisher ..........139 6. Post-Processing Option Troubleshooting Finisher SR5130/Booklet Finisher SR5140 ..............
Page 7 Interposer .......................... 175 Paper jam due to paper misfeeding or double feeding occurs ........175 Vertical lines and scratches occur at random positions ..........177 7. Improving Throughput Reducing the Waiting Time Prior to Printing ..............179 Improving Throughput When Printing on Coated Paper with a Thickness Equivalent to Paper Weight 7 or Higher ....................
Page 9 1. Read This First Introduction This manual contains detailed instructions and notes on the operation and use of this machine. For your safety and benefit, read this manual carefully before using the machine. Keep this manual in a handy place for quick reference.
Page 10 1. Read This First How to Read This Manual Symbols This manual uses the following symbols: Indicates points to pay attention to when using functions. This symbol indicates points that may result in the product or service becoming unusable or result in the loss of data if the instructions are not obeyed.
Page 11 2. Before You Begin About This Manual If the machine will not print, does not print as expected, or exhibits any other problem, find the problem in this manual and troubleshoot accordingly. • Before you replace any unit: • To prevent electrical shock, turn off the printer controller on the machine control panel, switch off the main power switch then the AC power switch, and then disconnect the machine from the power supply.
Page 12 2. Before You Begin Guide to Components • Do not remove any covers or screws other than those explicitly mentioned in this manual. There are high voltage components inside the machine that can cause electric shock. Also there are laser components inside the machine that can cause blindness.
Page 13 About the Display for Options About the Display for Options This machine displays all of the adjustment items in the Adjustment Settings for Skilled Operators menu regardless of whether or not the items are for options. • For details about the options available for this machine, see "Machine Options", Specifications.
Page 14 2. Before You Begin Before You Change a Setting • When changing the current settings, make a note of their present values before changing them. • If the problem persists even though the setting has been changed, restore the value noted. •...
Page 15 About Printing Surfaces About Printing Surfaces Depending on the setting, printed copies are fed as follows: Side 1 is the surface of the paper printed during one-sided printing, or the surface of the first print during duplex printing. Side 2 is the surface of the paper printed on the back side of Side 1 during duplex printing.
Page 16 2. Before You Begin Duplex printing A. Side 1 B. Paper feed direction of Side 1 C. Side 2 D. Paper feed direction of Side 2...
Page 17 3. Troubleshooting Service Call Problems (SC Codes) What Are SC Codes? If an error occurs during operation, the machine displays an SC code ("SCnnn", where "nnn" is a three-digit number). The machine stops and cannot be used when an SC code is displayed.
Page 18 3. Troubleshooting Service Call Problems (SC Codes) SC Code List This table contains a list of selected SC codes. If the SC code that is displayed on the control panel is listed in this table, carry out the recommended procedure. If the SC Code is not listed in this table, contact your service representative.
Page 19 4. Troubleshooting Image Quality Problems Toner Spotting/Staining Paper Is Spotted with Toner Paper is soiled with toner spots of 0.5–1 mm (0.02–0.04 inches) in diameter. Cause: Toner fragments have slipped through the cleaning web, which cleans the pressure roller, and re-adhered to paper. This may occur if: •...
Page 20 4. Troubleshooting Image Quality Problems out steps from Step 6 when using thin paper with a thickness equivalent to Paper Weight 0 or 1. 1. In [Advanced Settings] for the custom paper in use, increase the temperature by 5 degrees in 023: [Fusing Temp]. 2.
Page 21 Toner Spotting/Staining Cause: The drum is scratched or stained. Solution: 1. Detach the photoconductor unit and check the drum surface. Is the surface scratched? Replace the photoconductor unit. Contact your service representative. 2. If the problem persists, contact your service representative. •...
Page 22 4. Troubleshooting Image Quality Problems Cause: • The charger is stained. • The cleaning unit for PCU has worn out. • The drum surface is scratched. Solution: 1. In the [Main Unit: Maintenance] group on the [Adjustment Settings for Skilled Operators] menu, select 0522: [Execute Charger Cleaning] and execute [Execute Charger Cleaning].
Page 23 Toner Spotting/Staining 5. If the problem persists even though you have replaced the cleaning unit for PCU or photoconductor unit, contact your service representative. • For details about replacing the charge unit, cleaning unit for PCU and photoconductor unit, see Regular Maintenance: Parts Replacement. Streaks (2) Extended, blurred streaks parallel to the paper feed direction appear.
Page 24 4. Troubleshooting Image Quality Problems 2. Replace the cleaning unit for intermediate transfer belt. 3. If the problem persists even though you have replaced the cleaning unit for intermediate transfer belt, contact your service representative. • For details about replacing the cleaning unit for intermediate transfer belt, see ITB Cleaning Unit.
Page 25 Toner Spotting/Staining 3. Print 350 full-page, solid-fill A3 or DLT sheets. 4. If the problem persists, contact your service representative. Streaks (4) Irregular black streaks appear, running parallel to the feed direction. This occurs on both sides regardless of whether printing one-sided or duplex. These are not toner streaks.
Page 26 4. Troubleshooting Image Quality Problems Solution: 1. Set the [Low Power Mode Timer] function in [System Settings] to the initial value of 15 minutes. 2. If the problem persists, contact your service representative. Two 13-mm Long Vertical Streaks Two 13-mm long vertical streaks appear within 50 mm (2.0 inches) from the leading edge.
Page 27 Toner Spotting/Staining 1. Make sure that the system is turned off and the machine power cord is disconnected from the power source. 2. Open the front covers. 3. Lower the levers C1 and C2, and then pull the drawer out completely until it stops.
Page 28 4. Troubleshooting Image Quality Problems 5. Clean the rollers, sensors, and guide boards. 6. After cleaning, restore the machine so that it resumes operation. Two 14-mm Wide Streaks Two 14-mm wide streaks parallel to the paper feed direction appear. Cause: The exit drive rollers, exit idle rollers, exit relay drive rollers, or exit relay idle rollers in the drawer are soiled.
Page 29 Toner Spotting/Staining 1. Make sure that the system is turned off and the machine power cord is disconnected from the power source. 2. Open the front covers. 3. Lower the levers C1 and C2, and then pull the drawer out completely until it stops.
Page 30 4. Troubleshooting Image Quality Problems 5. Clean the rollers while turning the knob D1. Clean the sensors and guide boards also. 6. After cleaning, restore the machine so that it resumes operation. Stained Paper Edges Solution: 1. If the paper edges are stained, carry out the procedure in page 64 "Insufficient Toner Fusing".
Page 31 Toner Spotting/Staining Partially stained background Cause: This may occur because of wearing of the developer, drum unit, or charger. Solution: 1. If a message prompting replacement of a unit has appeared, replace the unit. 2. In the [Main Unit: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0202: [Image Density] and execute [Image Density Adjustment: Manual Execute].
Page 32 4. Troubleshooting Image Quality Problems Cause: The image transfer current is transmitted to the drum, where a potential difference occurs between a developed area and non-developed area and causes the intended image to be reproduced. This may occur if: • Solid filled images or bold characters are printed in black on a halftone background •...
Page 33 Toner Spotting/Staining Cause: When a relatively stiff, thick paper is delivered, the entrance guide board for the transfer unit is warped toward the intermediate transfer belt due to the stiffness of the paper. The edge of the entrance guide board comes into contact with the toner on the belt to cause images to be scratched and paper edges to be soiled.
Page 34 4. Troubleshooting Image Quality Problems Toner Scatter Toner Scatter (1) Toner is scattered around a solid-fill print. Cause: This may occur if printed at low temperature or humidity. • To adjust the following settings, pre-register the type of paper in use as a custom paper.
Page 35 Toner Scatter 2. Print the image. Is the problem resolved? Finished! If the problem also occurs on side 2 of the paper, perform the solution described in "(b) If the problem occurs on side 2". Increase the absolute value of the negative current by another 5%. 3.
Page 36 4. Troubleshooting Image Quality Problems • Printing is done at high temperature or humidity • Using coated or other slippery paper • Printing line images at less than 5 mm (0.2 inches) intervals • To adjust the following settings, pre-register the type of paper in use as a custom paper.
Page 37 Toner Scatter Go to the next step. 3. Increase the absolute value of the current by 5 A in [Image Transfer Output]. 4. Print the image. Is the problem resolved? Finished! Increase the value by 5 A. If the problem persists even though you have increased the value to the upper limit (150 A), go to the next step.
Page 38 4. Troubleshooting Image Quality Problems Cause: A shock jitter occurs when the trailing edge of the paper leaves the paper guide during paper transfer and causes toner scattering. This may occur if paper with a thickness equivalent to Paper Weight 4 or higher is used. •...
Page 39 Toner Scatter Repeat Steps 1 to 3. If the problem persists even though you have increased the value to 100 A, contact your service representative.
Page 40 4. Troubleshooting Image Quality Problems Color Loss White Spots White spots of 0.2–0.3 mm (0.008–0.01 inches) in diameter appear. Cause: This may occur if printed at low temperature or humidity. • To adjust the following settings, pre-register the type of paper in use as a custom paper.
Page 41 Color Loss (a) If the problem occurs on side 1 1. Adjust the setting for the side 1 of the paper. In [Advanced Settings] for the custom paper in use, decrease the absolute value of 5 A in 016: [Paper Transfer Output: Side 1].
Page 42 4. Troubleshooting Image Quality Problems Cause: This may occur if a solid image is printed on coated paper, if a solid image is printed during duplex printing, or if printing is done at low temperature. Solution: If blister-like white spots appear, carry out the procedure in page 64 "Insufficient Toner Fusing".
Page 43 Color Loss Cause: The transfer electric field on the concave portion of paper is weakened to cause a decrease in transcription. This may occur if: • Using paper with a rough surface • Continuously printing an image that consumes little toner •...
Page 44 4. Troubleshooting Image Quality Problems Density Problems Uneven Image Density The density is uneven. Solution: The solution depends on the type of unevenness. Carry out the appropriate procedure from those in the following table: (A) The density is uneven across the entire image. Affected area Solution The density...
Page 45 Density Problems (B) The density is uneven in a part of the image. Affected area Solution The leading In the [Main Unit: Image Quality] edge is fainter. group on the [Adjustment Settings for Skilled Operators] menu, select 0202: [Image Density] and execute [Image Density Adjustment: Manual Execute].
Page 46 4. Troubleshooting Image Quality Problems (C) The density is uneven in the direction perpendicular to the paper feed direction at regular intervals. Affected area Solution Periodic In the [Main Unit: Image Quality] vertical density group on the [Adjustment Settings for Skilled Operators] menu, select fluctuation 0202: [Image Density] and execute [Image Density Adjustment: Manual...
Page 47 Density Problems Solution: 1. In the [Main Unit: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0206: [Density Difference: Across Feed]. Decreasing the value makes the area above the center denser and that below fainter. Increasing the value makes the area above the center fainter and that below denser. 2.
Page 48 4. Troubleshooting Image Quality Problems At high temperature, this may occur if the paper transfer current is excessive. • This solution only works when the thickness of the paper is equivalent to Paper Weight 4 or higher. Do not try this as a solution when using paper with a thickness equivalent to Paper Weight 3 or lower, as it may cause paper misfeeding.
Page 49 Density Problems 6. If the problem is not resolved by repeating the steps from Step 4 to increase the value of [Paper Transfer Output: Leading Edge] to "200", reset it to the value noted in Step 1 and go to Step "(b) Decrease the current value". 7.
Page 50 4. Troubleshooting Image Quality Problems Cause: This may occur because of insufficient or excessive paper transfer current when using paper weighing approximately 160 g/m (60 lb. Cover) or heavier at low temperature or humidity. • To adjust the following settings, pre-register the type of paper in use as a custom paper.
Page 51 Density Problems 6. Repeat Step 5. If the problem persists even though you have increased the scaling factor by 50 percentage points, restore the value noted in Step 3 and go to the next step. 7. Decrease the scaling factor in the above setting by 10 percentage points. 8.
Page 52 4. Troubleshooting Image Quality Problems Solution: The solution depends on whether the area within 90 mm (3.5 inches) of the trailing edge is denser or fainter. <If the area within 90 mm (3.5 inches) of the trailing edge is fainter> 1.
Page 53 Density Problems Solution: Before you perform the solution procedure, make sure that the environmental conditions where you are using the machine meet those recommended for use. For details on the environmental conditions for use, see"Where to Put Your Machine", Maintenance. The solution depends on the interval.
Page 54 4. Troubleshooting Image Quality Problems Cause: This may occur if: • Continuously printing an image that consumes little toner • The machine has not been used for a long time • The machine is located somewhere very humid and has not been used for a while Solution: 1.
Page 55 Density Problems Color Is Too Dense The entire image is denser than normal. Cause: This may occur if: • Continuously printing an image that consumes much toner • The machine has not been used for a long time • The machine is located somewhere very humid and has not been used for a while Solution: 1.
Page 56 4. Troubleshooting Image Quality Problems Broken Thin Lines Thin lines (1 dot lines in 1200 dpi images) break. Cause: Oblique (approximately 45°) thin lines or thin lines printed in faint colors are likely to contain breaks. Solution: 1. In the [Main Unit: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0202: [Image Density] and execute [Image Density Adjustment: Manual Execute].
Page 57 Density Problems Blurred Images Lens-shaped blurred images appear at 314 mm (12.4 inches) intervals. Cause: If the machine is left unattended for a long period in an environment where temperature and humidity are high, corona products on the drum absorb moisture to prevent a buildup or removal of static electricity on the drum.
Page 58 4. Troubleshooting Image Quality Problems Cause: This may occur if: • Continuously printing an image that consumes much toner • The machine has not been used for a long time • The machine is located somewhere very humid and has not been used for a while Solution: 1.
Page 59 Density Problems Cause: This may occur when the image record on the intermediate transfer belt has largely changed. For example, this may occur when a solid-fill image is printed after horizontal lines are printed continuously. A potential difference occurs between an image portion and non-image portion on the intermediate transfer belt as a result of continuous printing of horizontal lines, causing the horizontal lines to become obvious on the next solid-fill image.
Page 60 4. Troubleshooting Image Quality Problems 3. In [Advanced Settings] for the custom paper in use, and decrease the value of 016: [Paper Transfer Output: Side 1] or 017: [Paper Transfer Output: Side 2] by 10 Example: -200 A to -190 A 4.
Page 61 Density Problems Solution: 1. In [Advanced Settings] for the custom paper in use, select 021: [Paper Transfr Out: Trailing Edge Length]. 2. Check the present value. Is it the upper limit? Go to Step 5. Go to the next step. 3.
Page 62 4. Troubleshooting Image Quality Problems Cause: Horizontal black streaks might occur at the position 270 mm from the leading edge of the paper due to the shock when the paper is inserted being transmitted to the paper transfer part. This may occur if: •...
Page 63 [Process Speed Setting]. Depending on the model in use, the number for [Process Speed Setting] may differ. Select “101” for Pro 8420S/ Pro 8420, “102” for Pro 8410S/ Pro 8410 and “103” for Pro 8400S. 7. Decrease the value of [Process Speed Setting]. Is it okay that productivity will be reduced? Go to the next step.
Page 64 4. Troubleshooting Image Quality Problems Gloss Problems Vertical Glossy Lines Glossy lines perpendicular to the paper feed direction appear. Cause: Glossy lines perpendicular to the paper feed direction may appear 251 mm (10 inches) from the boundary of the margin and the solid image (in the paper feed direction). Solution: 1.
Page 65 Gloss Problems 4. Check the toner fusion. Is it satisfactory? Finished! Restore the previous setting and contact your service representative. Insufficient Gloss The image is not glossy enough. Solution: If the gloss of the image is not glossy enough, carry out the procedures in Procedure 1, "Changing the fusing temperature"...
Page 66 4. Troubleshooting Image Quality Problems Fusing Problems Insufficient Toner Fusing This section explains how to resolve the problem of insufficient toner fusing on printed copies. • To adjust the following settings, pre-register the type of paper in use as a custom paper.
Page 67 Perform Procedure 2, "Changing the process speed". Procedure 2: Changing the process speed This procedure is available only for Pro 8420S, Pro 8410S, Pro 8420, and Pro 8410. This will slow down the printing to give the toner more time to fuse. However, because of this, throughput will be reduced.
Page 68 4. Troubleshooting Image Quality Problems Improving Image Quality When Using Different Types of Paper Because different types of paper vary in terms of quality, thickness and other factors, various sets of fusing conditions are configured to ensure better print quality. However, using certain types of paper may result in glossy streaks or poor fusing, depending on the combination of the paper type and the image being printed.
Page 69 5. Troubleshooting Paper Delivery Problems Possible Problems to Check for First If trouble occurs, first check the following. 1. Check if the specified paper length matches that of the loaded paper. Go to the next step. Specify the paper size correctly, and then load the paper. 2.
Page 70 5. Troubleshooting Paper Delivery Problems 3. Make sure there is space between the sheets. 4. Hold the stack of paper in both hands and tap the long and short edges of the paper against a flat surface to align them.
Page 71 Possible Problems to Check for First Attaching the Side Fences and End Fence Correctly (Two-tray Wide LCT) The side fences and end fence are attached correctly The side fences and end fence are attached correctly Check if the side fences and end fence are attached correctly. The side fences and end fence are attached correctly The side fences are not attached correctly.
Page 72 5. Troubleshooting Paper Delivery Problems Lifting the paper with it arched horizontal to the paper feed direction, measure with a scale the gap between the paper and side fences. Position the side fences so that the gap between them and the paper is 1 mm to 2 mm. The end fences are not attached correctly The end fences are positioned too widely.
Page 73 Possible Problems to Check for First Position the end fence so that the gap between it and the paper is 1 mm to 2 mm. Measuring the Curl/Decurling Measuring the curl Place a sheet of curled paper on a flat surface. Apply the scale to the edges of the paper to measure the curls at the 4 edges.
Page 74 5. Troubleshooting Paper Delivery Problems Decurling 1. Place the sheet on a flat surface with the curl facing downward. 2. Holding an edge of the paper, curl it in the opposite direction to decurl it. • Decurl the paper until the curl is within the acceptable range. •...
Page 75 Frequent Paper Misfeeds Frequent Paper Misfeeds Depending on the cause of the problem, do one of the following: Coated or another type of unsupported paper is loaded in the machine's tray. Load paper not supported by the machine's paper tray (Trays 1-3) in the wide LCT or another paper tray that supports the paper.
Page 76 5. Troubleshooting Paper Delivery Problems • Stacking too many sheets may cause the sheets on top to curl greatly. If this happens, reduce the number of stacked sheets. Sheets absorbed moisture and became limp. Sheets that will not be used for a long time should be protected from moisture by, for example, storing them in a sealed bag.
Page 77 Frequent Paper Misfeeds Contact your service representative. 2. Is it okay not to print some part of the image on the leading edge of the paper? Go to the next step. Go to Step 6. 3. In [Advanced Settings] for the custom paper in use and increase the value for 032: [Erase Margin: Leading Edge] by 0.5 mm.
Page 78 5. Troubleshooting Paper Delivery Problems Messages Reporting Paper Misfeeds Paper misfeeds are reported by messages and jam codes. Resolve the problem according to the jam code. If (J033) Appears Cause: Paper is skewed. Solution: Depending on the cause of the problem, do one of the following: The side fences in the paper tray are too far apart.
Page 79 Messages Reporting Paper Misfeeds 1. In [Advanced Settings] for the custom paper in use, make a note of the present value in 086: [Illumination Mode for Color Paper Detection]. 2. Increase the value in [Illumination Mode for Color Paper Detection]. 3.
Page 80 5. Troubleshooting Paper Delivery Problems 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators]menu, increase the value in 0305: [Skew Detection Level]. Increase the value to reduce the detection level. 2. Print the image. Is the problem resolved? Finished! Keep increasing the value until the problem is resolved.
Page 81 Messages Reporting Paper Misfeeds 4. To feed paper from Vacuum Feed Banner Sheet Tray Type S9, attach the end fence for long paper. For details, see page 118 "Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper)". •...
Page 82 5. Troubleshooting Paper Delivery Problems Solution: Depending on the cause of the problem, do one of the following: The side fences in the paper tray are too far apart. If the side fences are too far apart, the paper may shift. Adjust the side fences to match the paper width.
Page 83 Messages Reporting Paper Misfeeds Contact your service representative. • When you set [Deactivate Adjustment Across Feed] to [Deactivate Only Jam Detection], the printed image may become misaligned. Sheets of mixed type, thickness, or color are loaded in the paper tray. Load identical sheets in the paper tray.
Page 84 5. Troubleshooting Paper Delivery Problems 4. To feed paper from Vacuum Feed Banner Sheet Tray Type S9, attach the end fence for long paper. For details, see page 118 "Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper)". •...
Page 85 Messages Reporting Paper Misfeeds If (J051) Appears Cause: The paper feed is delayed. This may occur if slippery paper with a low paper-to-paper friction coefficient is used. Solution: 1. In [Advanced Settings] for the custom paper in use, set 088: [Registration Jam Detection with Feed Direction] to [Off].
Page 86 5. Troubleshooting Paper Delivery Problems 2. Open the front cover, then pull out the drawer unit. The lever is located in the recess of the drawer unit. 3. Lower the lever in the direction of the arrow. 4. Check that the indicator decal on the back of the lever is visible. The height of the paper transfer unit is changed to allow the applicable types of paper to be fed.
Page 87 Messages Reporting Paper Misfeeds 5. Print the image. Is the problem resolved? Finished! Contact your service representative. • To feed paper other than the target paper after printing, return the lever to its original position. When lever operation is performed when feeding paper other than the target paper, it may cause a paper jam in the post-processing device.
Page 88 5. Troubleshooting Paper Delivery Problems 2. Check if the double feeding is resolved. Finished! Go to the next step. 3. If using paper with a thickness of Paper Weight 5 or below, extend the paper retainer. If using paper with a thickness of Paper Weight 6 or above, go to the next step. 4.
Page 89 Messages Reporting Paper Misfeeds small tab end fence to the two-tray wide LCT", Introduction and Basic Operations. 8. Check if the double feeding is resolved. Finished! Go to the next step. • If set to [Prevent Double Feed (Weaker Blow)], paper misfeeds may be prone to occur with paper with a width of 182 mm to 225 mm (7.2 inches to 8.9 inches).
Page 90 5. Troubleshooting Paper Delivery Problems • To adjust the following settings, pre-register the type of paper in use as a custom paper. For details about registering custom papers, see "Registering a Custom Paper", Paper Settings. Solution: 1. Perform the common troubleshooting procedure. For details, see page 67 "Possible Problems to Check for First".
Page 91 Messages Reporting Paper Misfeeds 5. With a paper weight of 350.1 gsm to 360 gsm, check if it is registered to the Master Library. Go to the next step. In [Advanced Settings] for custom paper, select [2-Tray LCT: Vacuum Fan Level] and change the value to 10% above the default setting.
Page 92 5. Troubleshooting Paper Delivery Problems 14. Check if the paper misfeed is resolved. Finished! Go to the next step. 15. Cleaning the Paper Feed Belt. For details, see 2-Tray LCT: Tray T1, T2: Feed Belt/ 2-Tray LCT: Tray T3, T4: Feed Belt/ 2-Tray LCT: Tray T5, T6: Feed Belt.
Page 93 Paper Skew Paper Skew Depending on the cause of the problem, do one of the following: The side fences in the paper tray are too far apart. If the side fences are too far apart, the paper may be skewed. Adjust the side fences to match the paper width.
Page 94 5. Troubleshooting Paper Delivery Problems Solution: Two-tray Wide LCT 1. Perform the common troubleshooting procedure. For details, see page 67 "Possible Problems to Check for First". 2. Check if the skew is resolved. Finished! Go to the next step. 3. If using paper with a thickness of Paper Weight 5 or below, extend the paper retainer.
Page 95 Paper Skew 7. Remove the tab sheet holder or small tab end fence. 8. In [Advanced Settings] for the custom paper you are using, set 071: [2-Tray LCT: Paper Feed Mode (Fan Level)] to [Prevent Double Feed (Weaker Blow)]. 9. Check if the skew is resolved. Finished! Go to the next step.
Page 96 5. Troubleshooting Paper Delivery Problems Wrong Detection of Skew Depending on the cause of the problem, follow the procedure below: An envelope is used. If an envelope flap at the trailing edge is oblique, a skew may be wrongly detected when the envelope is transferred with its flap open.
Page 97 Double Feeding Double Feeding Depending on the cause of the problem, do one of the following: Is the paper feed roller covered with paper dust? Paper dust may decrease the traction of the paper feed roller and result in double feeding due to paper slippage or insufficient separation.
Page 98 5. Troubleshooting Paper Delivery Problems Paper weight Curl amount Paper Weight 9 Face curl: 10 mm Back curl: 0 mm Correcting curl 1. Place the curled surface down on a flat surface. 2. Hold the end of the paper and straighten it in the opposite direction to the curl direction so that the paper is rounded.
Page 99 Double Feeding <If custom paper is used> 1. In [Advanced Settings] for the custom paper in use, increase the value in 036: [3-Tray LCT: Fan Level]. <If custom paper is not used> 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, increase the value in 0306: [Wide LCT: Fan Level].
Page 100 5. Troubleshooting Paper Delivery Problems • For paper with a length of 560.0 mm to 700.0 mm (22.0 inches to 27.6 inches), attach the 1 long end fence. If Vacuum Feed Banner Sheet Tray Type S9 is not used, go to the next step. 5.
Page 101 Double Feeding There is no other solution, so do not feed paper. <When using thin paper that is easy to blow with air such as recycled paper> In addition to changing the setting of [2-Tray LCT: Paper Feed Mode (Fan Level)], perform the following procedure.
Page 102 5. Troubleshooting Paper Delivery Problems Wrong Detection of Double Feeding Depending on the cause of the problem, do one the following: Paper with high paper-to-paper adhesion is used. Paper with high paper-to-paper adhesion may be wrongly detected as double feeding. Ruffle the paper well before use.
Page 103 Paper Misfeeding Paper Misfeeding Depending on the cause of the problem, do one of the following: Have you ruffled the paper properly? Not ruffling the paper properly may cause paper misfeeding. Remove the paper, ruffle it, and reload it. For details about ruffling paper, see page 67 "Possible Problems to Check for First". The side fences in the paper tray are too close together.
Page 104 5. Troubleshooting Paper Delivery Problems Paper weight Curl amount Paper Weight 9 Face curl: 10 mm Back curl: 0 mm Correcting curl 1. Place the curled surface down on a flat surface. 2. Hold the end of the paper and straighten it in the opposite direction to the curl direction so that the paper is rounded.
Page 105 Paper Misfeeding <If two or more misfeeds occur in a day for the same tray> 1. Set the separation pressure level for the tray to level 2 by moving the adjuster one level from the default position toward you. <If two or more misfeeds occur in a day for the same tray with separation pressure level 2 set>...
Page 106 5. Troubleshooting Paper Delivery Problems For details about cleaning the paper feed roller of the wide LCT, see page 121 "Cleaning the Paper Feed Path". Two-tray wide LCT does not have paper feed rollers. An envelope is used. Depending on the type of envelope, air trapped inside may be squeezed out when the paper feed roller picks up the envelope and cause slippage leading to a misfeed.
Page 107 Paper Feed Problems Affecting Image Quality Paper Feed Problems Affecting Image Quality Image Is Positioned Incorrectly Cause: Depending on the paper thickness, floppiness, edge roughness, and curl, the image may become mispositioned. Solution: Adjust the image position. • When using a custom paper, in [Advanced Settings] for the custom paper in use and specify the following for [Image Position] to adjust the image position.
Page 108 5. Troubleshooting Paper Delivery Problems If the problem persists even though you have adjusted the setting to its maximum and minimum values, contact your service representative. • For details about specifying settings in the [Adjustment Settings for Skilled Operators] menu and [Advanced Settings] menu, see Adjustment Item Menu Guide. Image Scaling Error on the Side 1 of Paper Cause: An image scaling error may occur because of expansion or contraction of the paper.
Page 109 Paper Feed Problems Affecting Image Quality If the problem persists even though you have adjusted the setting to its maximum and minimum values, contact your service representative. Image Scaling Error on the Side 2 of Paper Cause: An image scaling error on the side 2 of the paper may occur because the paper expands or contracts after the image on the side 1 of the paper has been fused.
Page 110 5. Troubleshooting Paper Delivery Problems Paper Edges Are Soiled (1) Cause: The exit rollers in the drawer are soiled. Solution: Clean the exit rollers in the drawer. For details about cleaning the exit rollers, see page 26 "Two 14-mm Wide Streaks". Paper Edges Are Soiled (2) Cause: The antistatic brushes in the exit transport and invert transport of the drawer are soiled...
Page 111 Paper Feed Problems Affecting Image Quality Solution: Carry out the following sequence of procedures. Terminate the sequence as soon as the problem is resolved. Procedure 1: Cleaning the antistatic brushes in the exit transport and inverter transport of the drawer Clean the antistatic brushes in the exit transport and inverter transport of the drawer with a blower brush.
Page 112 5. Troubleshooting Paper Delivery Problems Contact your service representative. 5. Is this setting essential? Contact your service representative. Change the setting so that the sheets are delivered with their printed side facing down. 6. Print the image. Is the problem resolved? Finished! Contact your service representative.
Page 113 Paper Feed Problems Affecting Image Quality 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, check the present degree of decurling (Weak, Medium, or Strong) in 0310: [Correct Output Paper Curl]. 2. In [Advanced Settings] for the custom paper in use, adjust the paper feed speed of the decurler unit.
Page 114 5. Troubleshooting Paper Delivery Problems • For duplex printing Reduce the value in 096: [Switchback Entrance Roller Feed Speed] by 0.1%. • For one-sided printing (delivery of inverted paper) Reduce the value in 097: [Switchback Exit Roller Feed Speed] by 0.1%. 2.
Page 115 Paper Feed Problems Affecting Image Quality • To adjust the following settings, pre-register the type of paper in use as a custom paper. For details about registering custom papers, see "Registering a Custom Paper", Paper Settings. Solution: <If scratches or streaks appear on the side 2 of the paper or continuous noise results>...
Page 116 5. Troubleshooting Paper Delivery Problems • If the degree of decurling is set to "Strong", increase the value in 100: [Decurler Feed Speed: Adj Strong] by 0.5%. 3. Print the image. Is the problem resolved? Finished! Keep increasing the value by 0.5% until the problem is resolved. If the problem persists even though the value has reached its maximum value, contact your service representative.
Page 117 Paper Feed Problems Affecting Image Quality 1. In [Advanced Settings] for the custom paper in use, reduce the value by 0.5 mm in 032: [Erase Margin: Leading Edge]. 2. Reduce the value by 0.5 mm in 033: [Erase Margin: Trailing Edge]. 3.
Page 118 5. Troubleshooting Paper Delivery Problems Ear-fold When using the decurler unit, the corner of the paper is folded. Cause: If paper U curls during П curl correction, the paper may be in contact with the roller inside the decurler unit. Solution: (a) Check the paper 1.
Page 119 Paper Feed Problems Affecting Image Quality (c) Correcting П curl 1. In the [Main Unit: Paper Feed/ Output] group of [Adjustment Settings for Skilled Operators], set [Adjust П Curl: Medium] for 0310: [Correct Output Paper Curl]. 2. Print the image. Is the problem resolved? Finished! Go to the next step.
Page 120 5. Troubleshooting Paper Delivery Problems Notes on the Two-Tray Wide LCT Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper) Paper Fences to use 420.0 – 559.9 mm (16.5-22 inches) 1. Short end fences (2) (With the LCT banner sheet tray attached) 560.0 –...
Page 121 Notes on the Two-Tray Wide LCT Paper Fences to use • Use the auxiliary side fence and side fences as deemed appropriate. • Attach the auxiliary side fence for paper length of 487.8 mm (19.2 inches) or longer. • Attach the auxiliary side fence parallel to the side fence flush against the side of the paper.
Page 122 5. Troubleshooting Paper Delivery Problems For Paper Weight 5 or below Press the lever and extend the paper retainer.
Page 123 Cleaning the Paper Feed Path Cleaning the Paper Feed Path Paper dust sticking to the paper transfer guide board, roller, paper feed roller, or sensor may cause white spots, paper jam, or double feeding. Clean the paper feed path from the paper tray to the paper exit in the drawer.
Page 124 5. Troubleshooting Paper Delivery Problems Cleaning the Paper Feed Path in the Drawer 1. Open the front covers. 2. Pull down the levers C1 and C2, and then pull the drawer out completely until it stops. 3. Pull up and open the cover B6.
Page 125 Cleaning the Paper Feed Path 4. Clean the rollers while turning the knob B2. Clean the sensors and guide boards also. 5. Close the cover B6. 6. Clean the rollers and sensors.
Page 126 5. Troubleshooting Paper Delivery Problems 7. Pull down and open the cover B3. 8. Clean the rollers while turning the knob B1. Clean the sensors and guide boards also. 9. Close the cover B3.
Page 127 Cleaning the Paper Feed Path 10. Remove the 2 screws, and then remove the cover. The cover has tabs on it. Remove the cover while releasing the tabs. 11. Remove the screws (2 screws), and then remove the paper dust case, taking care not to drop the paper dust.
Page 128 5. Troubleshooting Paper Delivery Problems 13. Clean the dust catcher. 14. Clean the roller while turning the knob B5. Clean the sensor, guide board, and roller in the paper transfer unit also. 15. Attach the dust catcher, and then secure it with the 2 screws.
Page 129 Cleaning the Paper Feed Path 16. Attach the cover, aligning the notch on the cover with the claw, and then secure it with the 2 screws. 17. Pull down the levers Z2 and Z3. 18. Clean the left-hand side rollers while turning the knob Z1. Clean the left-hand side sensors and guide boards also.
Page 130 5. Troubleshooting Paper Delivery Problems 19. Clean the right-hand side rollers, sensors, and guide boards. 20. Pull up the levers Z2 and Z3. 21. Clean the sensor and guide board on the entrance of the fusing unit.
Page 131 Cleaning the Paper Feed Path 22. Pull up and open the cover D2. 23. Clean the sensor and guide board. 24. Close the cover D2.
Page 132 5. Troubleshooting Paper Delivery Problems 25. Pull up and open the cover D3. 26. Clean the rollers while turning the knob D1. Clean the sensors and guide boards also. 27. Close the cover D3.
Page 133 Cleaning the Paper Feed Path 28. Pull down and open the cover D4. 29. Clean the rollers, sensor, and guide boards. 30. Clean the antistatic brushes.
Page 134 5. Troubleshooting Paper Delivery Problems 31. Close the cover D4. 32. Push the drawer back into the machine. 33. Pull up the levers C1 and C2.
Page 135 Cleaning the Paper Feed Path 34. Close the front covers. Cleaning the Paper Transfer Roller If normal paper is printed after continuously fed carbonless paper, toner stains or black streaks may appear on the back of the normal paper. If toner stains or black streaks appear, wipe the paper transfer roller with a rag or other dry cloth.
Page 136 5. Troubleshooting Paper Delivery Problems Paper transfer unit needs replacing 1. Rotating the roller by turning the deep side of the drive axis clockwise (1), wipe the roller in the direction of the arrow from the front to the back. Clean the roller until there is no visible dirt or dust on the entire circumference of the paper transfer roller.
Page 137 Cleaning the Paper Feed Path 3. Clean the guide board of the paper feed unit. 4. Clean the guide board interior. 5. After cleaning, restore the machine so that it resumes operation. • For details about detaching and reattaching the parts, see Wide LCT: Tray 4: Feed Roller (A3LCT)/Wide LCT: Tray 5: Feed Roller (A3LCT)/Wide LCT: Tray 6: Feed Roller (A3LCT).
Page 138 5. Troubleshooting Paper Delivery Problems 2. Clean the paper feed rollers. 3. Clean the guide board of the paper feed unit. 4. Clean the guide board interior. 5. After cleaning, restore the machine so that it resumes operation. • For details about detaching and reattaching the parts, see LCT: Tray 4: Feed Roller (A4LCT)LCT: Tray 4: Feed Roller (A4LCT) LCT: Tray 5: Feed Roller (A4LCT)LCT: Tray 4: Feed Roller (A4LCT) or LCT: Tray 6: Feed Roller (A4LCT).
Page 139 Cleaning the Paper Feed Path 2. Clean the paper feed rollers. 3. Clean the guide board. 4. After cleaning, restore the machine so that it resumes operation. • For details about detaching and reattaching the parts, see Bypass Tray (Tray A Roller Assembly).
Page 140 5. Troubleshooting Paper Delivery Problems 3. Open the cover of the paper feed rollers. 4. Remove the paper feed rollers. 5. Clean the paper feed rollers. 6. Open the interposer right cover and clean the guide board.
Page 141 Cleaning the Paper Feed Path 7. Clean the inside of the interposer. 8. After cleaning, restore the machine so that it resumes operation. Cleaning the Rollers and Guide Boards in the Finisher When a sheet with a high-density image on it is delivered or when the toner is not fused well, toner may stick to the rollers and guide boards in the finisher, where it may stain the transfer surface or sheet edge.
Page 142 5. Troubleshooting Paper Delivery Problems...
Page 143 6. Post-Processing Option Troubleshooting Finisher SR5130/Booklet Finisher SR5140 Delivered Sheets Are Not Stacked Properly Solution: Depending on the cause of the problem, do one of the following: Coated paper is being used. <If the decurler unit is used> In the [Main Unit: Paper Feed/ Output] group of [Adjustment Settings for Skilled Operators], select 0310: [Correct Output Paper Curl] to correct П...
Page 144 6. Post-Processing Option Troubleshooting To correct curls facing down, specify "Adjust П Curl". Select "Strong" or "Medium" depending on the degree of decurling required. <If the decurler unit is not used> 1. Load the sheets the other way up. There are too many stacked sheets. Reduce the number of the stacked sheets.
Page 145 Finisher SR5130/Booklet Finisher SR5140 Paper deflection Because of high paper friction, the delivered sheet may arch up and become crimped. Solution: Depending on the cause of the problem, do one of the following: <Sheet bending> There is airflow in the room. Minimize the airflow.
Page 146 6. Post-Processing Option Troubleshooting <If the decurler unit is not used> 1. Load the sheets the other way up. Paper of Paper Weight 0 is being used. If limp paper such as thin paper is being used, set the finisher upper tray to the paper output tray.
Page 147 Finisher SR5130/Booklet Finisher SR5140 This is likely to occur if: • There is a tight curl on a delivered set of stapled sheets. • Limp paper such as thin or recycled paper is used. Solution: 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, set 0310: [Correct Output Paper Curl] to "Adjust U Curl".
Page 148 6. Post-Processing Option Troubleshooting Solution: When the paper width direction is not aligned neatly 1. In the [Finishing: Finisher 2] group of [Adjustment Settings for Skilled Operators], select 0701: [Paper Alignment for Stapling: Across Feed] and adjust the width of the paper alignment jogger for stapling.
Page 149 Finisher SR5110/Booklet Finisher SR5120 Finisher SR5110/Booklet Finisher SR5120 Delivered Sheets Are Not Stacked Properly Solution: Depending on the cause of the problem, do one of the following: Coated paper is being used. If coated paper is being used, attach the Z-fold support tray for multi-folding unit. For details about attaching the Z-fold support tray for multi-folding unit, see "Specifications"...
Page 150 6. Post-Processing Option Troubleshooting Large Delivered Sheets Are Not Stacked Properly Cause: When using large-size or coated and paper-to-paper friction is very high, a sheet may push against another or paper deflection may occur. This is likely to occur if: •...
Page 151 Finisher SR5110/Booklet Finisher SR5120 Solution: Depending on the cause of the problem, do one of the following: <Sheet bending> There is airflow in the room. Minimize the airflow. For instance, turn the air conditioner off. Sheets are curled upward. <If the decurler unit is used> 1.
Page 152 6. Post-Processing Option Troubleshooting <One sheet pushing out another or sheets becoming crimped> Sheets are curled downward. <If the decurler unit is used> 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, set 0310: [Correct Output Paper Curl] to "Adjust П Curl". To control the level of decurling, select "Medium"...
Page 153 Finisher SR5110/Booklet Finisher SR5120 • There is a tight curl on a delivered set of stapled sheets. • Limp paper such as thin or recycled paper is used. Solution: 1. Attach the Z-fold support tray for multi-folding unit. 2. Print the image. Is the problem resolved? Finished! Go to the next step.
Page 154 6. Post-Processing Option Troubleshooting When coated or other paper producing higher paper-to-paper friction is used, the paper edges are not aligned properly, resulting in misaligned stapling. This is likely to occur if: • Coated or other paper producing higher paper-to-paper friction is used. •...
Page 155 Finisher SR5110/Booklet Finisher SR5120 Solution: The leading edge of Paper Weight 1 or Paper Weight 2 is rolled 1. In the [Machine: Paper Feed / Output] group on the [Adjustment Settings for Skilled Operators] menu, select 0310: [Correct Output Paper Curl] and adjust the degree of decurling.
Page 156 6. Post-Processing Option Troubleshooting paper delivery fan touches the swollen portion, causing succeeding sheets to collide with the sheets already in the stack and be added to the stack obliquely. Sheet buckling The tip of an easily-bent sheet may hang down as it is delivered. Depending on the angle at which the tip is hanging, the sheet may be caught on the shift tray, preventing it from being fed.
Page 157 Finisher SR5110/Booklet Finisher SR5120 Select [Output Fan Setting] to [On]. 4. Print the image. Is the problem resolved? Finished! When all of the necessary printing is complete, configure [Output Fan Setting] back to [Auto]. Proceed to the procedure (b) "Resolving the problem according to the cause".
Page 158 6. Post-Processing Option Troubleshooting 4. Print on a smaller number of sheets. If the problem persists, configure [Output Fan Setting] back to [Auto] and contact your service representative. <Tip curling-up> 1. Is it possible to flip the printed side by delivering the paper inverted? Go to the next step.
Page 159 Finisher SR5110/Booklet Finisher SR5120 Cause: It may occur when printing on thin paper of 64.0 g/m or less. Solution: 1. Load the sheets the other way up. 2. Print the image. Is the problem resolved? Finished! Go to the next step. 3.
Page 160 6. Post-Processing Option Troubleshooting Paper jam occurs on thin coated paper of Paper Weight 2 or less Cause: Paper jam may occur when stapling or saddle stitching with thin coated paper of Paper Weight 2 or less. Solution: • A paper strengthening rib is not included. When using a paper strengthening rib, contact your service representative.
Page 161 Finisher SR5110/Booklet Finisher SR5120 Paper jam occurs while saddle stitching Paper jam occurs when 21 or more sheets of 80 g/m or less are stapled together. Cause: When the paper curls backward, paper deflection may occur during paper transferring in the booklet staple unit and a paper jam may occur.
Page 162 6. Post-Processing Option Troubleshooting Multi-Folding Unit Inaccurate Folding (Folding Deviation) Cause: Depending on paper hardness, inaccurate folds may result. This is referred to as folding deviation. Solution: Change the folding position by adjusting the position of the paper edge stopper for folding.
Page 163 Multi-Folding Unit • For details about specifying settings in the [Adjustment Settings for Skilled Operators] menu, see Finishing: Fold. Folding Deviation Cause: Depending on paper hardness, folding deviations (skewed folding) may appear. A deviation may appear if the edge dimensions of the parts between folds are different. For example, in the following illustration, the dimensional difference between the top (L2[2]) and bottom (L2[1]) edges is a deviation.
Page 164 6. Post-Processing Option Troubleshooting The screws adjust the folding deviations of the following parts: Z-fold...
Page 165 Multi-Folding Unit Half Fold Letter Fold-in Letter Fold-out Double Parallel...
Page 166 6. Post-Processing Option Troubleshooting Gate Fold mark indicates the leading edge (relative to the paper feed direction), and the mark indicates the trailing edge. <How to adjust the folding deviation> This procedure is the same for L1, L2, and L3. 1.
Page 167 Multi-Folding Unit Folds soiled by multi-sheet folding Cause: If multi-sheet folding is performed after a large number of Z-folds have been performed, the tip of the blade used for the multi-sheet folding may be soiled, resulting in soiled paper. This will produce paper soil of 1-3 cm (0.4-1.2 inches) in width (equal to the width of the blade) in the fold in the center of paper.
Page 168 6. Post-Processing Option Troubleshooting 4. Wipe the tip and top of the blade with a soft dry cloth. Be careful not to damage the blade. 5. After cleaning, restore the machine so that it resumes operation. Apply multi-sheet folding and print 3-5 copies. The paper soil will disappear. Edges of letter fold bent When letter folding is applied, the edge of the inner flap may become bent.
Page 169 Multi-Folding Unit <When letter folding is applied to multiple sheets> 1. Load the paper the other side up. 2. Print the image. Is the problem resolved? Finished! Go to the next step. 3. In the [Finishing: Fold] group on the [Adjustment Settings for Skilled Operators] menu, set 0810: [Letter Fold-in Position 1: Multi-sheet Fold] to "0.0 mm".
Page 170 6. Post-Processing Option Troubleshooting Solution: 1. In the [Main Unit: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, set 0310: [Correct Output Paper Curl] to [Adjust U Curl: Medium]. 2. Print the image. Is the problem resolved? Finished! Go to the next step.
Page 171 Multi-Folding Unit • Thick, relatively stiff paper is used. As a bundle is delivered, its folded edge may droop and catch on the stacked bundles, causing the delivered bundle to flip over. Solution: Use the Z-fold support tray for multi-folding unit. This will reduce the angle of stacked bundles and prevent bundles flipping over as they are delivered.
Page 172 6. Post-Processing Option Troubleshooting High Capacity Stacker Delivered Sheets Are Severely Curled Cause: Sheets with downward curls cause strong friction on the leading edges. This may result in paper misfeeds. Sheets will not be ejected completely and the trailing edges will be left inside the paper exit.
Page 173 High Capacity Stacker 3. The trailing edge of the sheet, while delivered, is left in the paper exit. 4. The next sheet to be delivered slips under the sheet still in the paper exit and bends back. Solution: Straighten out the sheet by decurling it upward. 1.
Page 174 6. Post-Processing Option Troubleshooting Go to the next step. 7. Is the sheet curled downward? Contact your service representative. Load the sheets the other way up, and then repeat the steps from Step 3. The Machine Wrongly Detects That the Tray Is Full Cause: Depending on the paper size, the machine may detect that the shift tray has reached the maximum number of sheets that can be stacked on it.
Page 175 High Capacity Stacker 7. Set 0310: [Correct Output Paper Curl] to [Adjust U Curl: Strong]. 8. Print the image. Has the problem been resolved? Finished! Go to the next step. 9. Set 0310: [Correct Output Paper Curl] to [Adjust П Curl: Medium]. 10.
Page 176 6. Post-Processing Option Troubleshooting Paper of Paper Weight 1 does not align correctly Cause: This may occur if: • Thin paper of Paper Weight 1 is used • Printing is done at low temperature or humidity Solution: 1. Set the reverse side of the paper. 2.
Page 177 Interposer Interposer Paper jam due to paper misfeeding or double feeding occurs Cause: This may occur if: • Coated paper is set • Paper with high smoothness is set • Printing is done at low temperature or humidity • The paper curl is large Solution: 1.
Page 178 6. Post-Processing Option Troubleshooting 2. Is the paper curl within the curl standard? Proceed to Step 6. Go to the next step. 3. Place the curled surface down on a flat surface. 4. Hold the end of the paper and straighten it in the opposite direction to the curl direction so that the paper is rounded.
Page 179 Interposer Weight Weight Weight Weight Weight Weight Weight Weight 52.3 – 63.1 – 80.1 – 105.1 163.1 220.1 256.1 300.1 63.0 80.0 105.0 – – – – – 163.0 220.0 256.0 300.0 350.0 Initial 50 % 50 % 80 % 80 % 10 % 10 %...
Page 180 6. Post-Processing Option Troubleshooting Solution: Clean the guide plate inside the interposer. For details about how to clean the interposer, see page 121 "Cleaning the Paper Feed Path".
Page 181 7. Improving Throughput Reducing the Waiting Time Prior to Printing After receiving a print job, the machine usually stops to allow the fusing temperature to reach an appropriate level for printing. Conversely, when thinner sheets are used, the fusing unit needs longer to cool down to the specified temperature. By decreasing the fusing temperature during standby, you can reduce the waiting time.
Page 182 Speed Setting] by one step. Depending on the model in use, the number for [Process Speed Setting] may differ. Select “101” for Pro 8420S/ Pro 8420, “102” for Pro 8410S/ Pro 8410 and “103” for Pro 8400S. • If it is presently set to [Low], change it to [Middle].
Page 183 Improving Throughput When Printing on Coated Paper with a Thickness Equivalent to Paper Weight 7 or Higher 111 ppm (Pro 8420) • [Low] 96 cpm (Pro 8410S/Pro 8420S) 96 ppm (Pro 8410/Pro 8420)
Page 184 7. Improving Throughput Reducing the Waiting Time When Different Types of Paper are Used When different types of paper are used, the machine switches between different sets of fusing temperature conditions for each paper type. This may result in a delay while the machine switches between different paper types, resulting in decreased productivity.
Page 185 Reducing the Waiting Time When Different Types of Paper are Used The waiting time cannot be reduced. Change the setting back to the original value. You can use this setting. If the sheets used are thin, excessive gloss, glossy streaks, or blistering may result.
Page 186 1. In the [Main Unit: Image Quality] group on the [Adjustment Settings for Skilled Operators] menu, select 0207: [Fusing Temperature on Standby] and configure [Temperature on Low Power Mode] as follows: • Pro 8400S: 160 degree(s) • Pro 8410S/Pro 8410: 165 degree(s) • Pro 8420S/Pro 8420: 170 degree(s) D0EZ7226-EN...

This manual is also suitable for:

Pro 8420 Pro 8400s Pro 8410s Pro 8420s