Page 1 Shared Maintenance Offering: Troubleshooting 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 Introduction................................. 8 1. Before You Begin About This Manual............................. 9 About the Display for Options.........................10 Before You Change a Setting..........................11 About Printing Surfaces............................12 Note about Vertical (In-track) and Horizontal (Cross-track) Directions............14 2. Specifying and Checking Paper Settings Adjusting Paper Settings..........................
Page 4 Uneven Density within 90 mm (3.5 inches) of the Trailing Edge............. 59 Faint Small Solid-Fill Images........................60 Faint Black / White Streaks in the Areas Using Only Black..............61 Mottling (Paper with Indentations and Other Textured Paper)..............64 Glossy Ghosting (Horizontal Glossy Streaks)................... 66 Multiple Horizontal Glossy Streaks (Glossy Ghosting)................
Page 5 Waves: Trailing Edge (A4 and larger)....................135 White Stains/Ghosting When Printing on Transparent Film..............135 5. Image Quality Problem: Lines/Streaks Bands................................143 Banding (General)............................ 143 Banding: 189 mm (7.5 inches) Intervals....................144 Banding Occurring Every 3 mm (0.1 inches) after Solid-Fill Image............. 146 Banding at Random Pitch (Metallic Paper).....................
Page 6 Stains appear on the back of the paper approximately every 205 mm (8.1 inches) in the paper feed direction..............................197 7. Fanning the Paper/Cleaning Fanning the Paper............................199 Clean the Paper Edges..........................201 8. Troubles Related to Paper Feeding and Delivery (Main) Cleaning the Parts of the Machine.......................
Page 7 13 mm (0.5 inches) Wide Roller Marks Appearing on the Leading Edge of Paper Delivered Face Down................................237 Toner Stains like Roller Marks (after Continuous Large Volume Printing on Coated Paper)....238 Vertical White Streak Roller Marks......................239 White Spots or Scratches due to Paper Dust..................241 White Streaks of Stains Appearing when Feeding Dark-Color Paper after White Coated Paper..242 Paper Jam...............................243 Frequent Paper Misfeeds..........................
Page 8 Cleaning the Wide LCT Connection Unit....................283 Using the Paper Retainer Correctly......................283 Paper Jam Occurs in the Paper Transfer Unit..................285 11. Post-Processing Option Troubleshooting Buffer Pass Unit...............................287 Roller Marks Appearing When Feeding Dark-Color Paper after Feeding White Paper....287 Glossy banding approximately 14 mm (0.6 inches) wide occurs at an area 33 mm (1.3 inches) from the center in the paper feed direction......................287 The Buffer Pass Unit's Fan is Noisy......................292 Cleaning the Buffer Pass Unit........................
Page 9 12. Problems Related to Throughput Waiting Time Prior to Printing is Too Long....................319 Waiting Time Prior to Printing is Too Long (Other than Envelope)............319 Waiting Time Prior to Printing is Too Long (Envelope)................320 Insufficient Fusibility............................321 Insufficient Fusibility........................... 321 Throughput Reduced When Printing Jobs with Mixed Paper Type or Thickness, or After Changing Paper Type or Thickness............................324 When Printing Jobs with Mixed Paper Type or Thickness..............324...
Page 10: Introduction
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 11: Before You Begin
1. 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 color 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: About The Display For Options
1. Before You Begin About the Display for Options This machine displays all of the adjustment items in the Adjustment Settings for Operators menu and advanced settings for custom paper regardless of whether or not the items are for options. Note that any modifications to the option settings do not take effect unless the applicable options are installed on this machine.
Page 13: Before You Change A Setting
Before You Change a Setting Before You Change a Setting • If the problem persists despite the setting being changed, restore the value you made a note of. • Operating the machine with the changed setting may cause problems such as reduced print quality.
Page 14: About Printing Surfaces
1. Before You Begin About Printing Surfaces 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 after side 1 has been printed during duplex printing. Single-sided printing: Printed side face down DFP406 A.
Page 15 About Printing Surfaces Single-sided printing: Printed side face up DFP408 A. Side 1 B. Paper feed direction of Side 1 Duplex printing: Printed side face up DFP409 A. Side 1 B. Paper feed direction of Side 1 C. Side 2 D.
Page 16: Note About Vertical (In-Track) And Horizontal (Cross-Track) Directions
1. Before You Begin Note about Vertical (In-track) and Horizontal (Cross-track) Directions In this manual, with regard to the paper feed direction, the vertical and horizontal directions are as shown below: DFP311 1. Paper feed direction 2. Horizontal (Cross-track) 3. Vertical (In-track)
Page 17: Specifying And Checking Paper Settings
2. Specifying and Checking Paper Settings Adjusting Paper Settings Paper Setting Flowchart Is there a problem you want to solve? Paper Delivery Image quality in fusing and image Image position/density transfer Specify the corresponding setting in Adjustment Settings for Operators and Custom Paper Settings.
Page 18 2. Specifying and Checking Paper Settings • To adjust the following settings, pre-register the type of paper in use as a custom paper. For details about registering custom papers, see "Changing Tray Paper Settings", Paper Settings. Solution: Carry out the following sequence of procedures. Terminate the sequence as soon as the problem is resolved.
Page 19 Adjusting Paper Settings Procedure 2: Changing the print speed This will slow down the printing to give the toner more time to fuse. However, because of this, throughput will be reduced. In [Detailed settings] for the custom paper you are using, select 1231: [Print Speed], and then decrease the value in the following corresponding settings by one step.
Page 20: Improving Transferability
2. Specifying and Checking Paper Settings • If one or more of the above side effects occurs, adjust the fusing temperature and process speed by decreasing the fusing temperature and increasing the process speed. • After performing the solution, it is recommended to perform the color calibration of the external controller.
Page 21: Troubleshooting Image Quality Problems
3. Troubleshooting Image Quality Problems Image Index Large Classification: Lines/Streaks Line/streaks thinner than 1mm in width that appear either as a result of contamination or incomplete toner transfer. DFP701 Middle classification: Lines/Streaks A smudge or a white area inside an image, in a linear shape with 1mm or smaller width. DFP755...
Page 22 3. Troubleshooting Image Quality Problems Small classification Sample image Description Vertical black (color) streaks Black (color) streaks appearing in the paper feed direction. DFP754 Vertical white streaks • See page 177 "White Streaks Parallel to the Paper Feed Image missing in the shape of streaks Direction".
Page 23 Image Index Small classification Sample image Description Vertical glossy streaks • See page 163 "Vertical (In- track) White Streaks (Glossy)". Glossy streaks appearing in the paper feed direction. • See page 179 "Vertical Glossy (In-track) Streaks (Due to the Toner Wax on the Image)". DFP706 Horizontal white streaks •...
Page 24 3. Troubleshooting Image Quality Problems DFP756 Small classification Sample image Description Jitter • See page 159 "Paper Transfer Shock Jitter / Shock Jitter Blurred area visible as bands in the (When the Positions of K and S direction perpendicular to the paper Toners Have Been Switched)".
Page 25 Image Index Small classification Sample image Description Vertical white bands • See page 163 "Vertical (In- track) White Streaks (Glossy)". White bands appearing in the paper feed direction. DFP711 Horizontal white bands • See page 144 "Banding: 189 mm (7.5 inches) Intervals". White bands appearing in the direction perpendicular to the paper feed direction.
Page 26: Large Classification: Spots
3. Troubleshooting Image Quality Problems Small classification Sample image Description Fuzzy lines Blurred images in the shape of slightly winding bands in the paper feed direction. DFP715 Roller tracks Stains on the transport rollers transferred to paper. DFP716 Large classification: Spots An image quality problem either exhibiting white spots on solid areas, or black spots on the background.
Page 27 Image Index DFP757 Small classification Sample image Description Black (color) spots • See page 183 "Black Spots (Granular Toner Clotting)". Stains are visible as crisp black (color) spots. DFP717 White spots • See page 189 "White Spots/ Toner Blasting". White spots are visible inside solid image or halftone image area •...
Page 28: Large Classification: Full Page
3. Troubleshooting Image Quality Problems Small classification Sample image Description White spots with toner cores White spots with pieces of aggregated toner in the center visible in solid color area. Pieces of aggregated toner may be irremovable. DFP719 Fish-shape stains •...
Page 29 Image Index DFP721 Small classification Sample image Description All black Copied paper is all black. DFP721 Blank No image is reproduced. DFP722 Middle classification: Unprinted Parts of the developed images and letters are not reproduced. DFP759...
Page 30 3. Troubleshooting Image Quality Problems Small classification Sample image Description White zone • See page 93 "Hazing on the Sides / Arched Glossy Streaks". Part of a solid image or halftone is missing. • See page 112 "Faint Color at the Leading Edge of the Paper (White Spots)".
Page 31 Image Index Small classification Sample image Description Halo There is a white line around a solid object. DFP725 Negative residual image Previously copied image pattern is reproduced (density difference in white) in the halftone part on the next page. DFP726 Positive residual image Previously copied image pattern is reproduced (density difference in...
Page 32 3. Troubleshooting Image Quality Problems Small classification Sample image Description Missing image Developed image slid in the subscan direction or missing. DFP729 Middle classification: Unevenness The density of the developed image is uneven. DFP760 Small classification Sample image Description High density Image density higher than configured.
Page 33 Image Index Small classification Sample image Description Uneven density • See page 59 "Uneven Density within 90 mm (3.5 Image density is uneven within the inches) of the Trailing Edge". same page. • See page 73 "Uneven Density between the Left and Right Sides (at 40 mm (1.6 inches) Intervals)".
Page 34 3. Troubleshooting Image Quality Problems Small classification Sample image Description Uneven glossiness • See page 66 "Glossy Ghosting (Horizontal Glossy The glossiness is uneven inside a Streaks)". dark solid image. Check it by looking at the paper from different angles. •...
Page 35 Image Index Small classification Sample image Description Rough image • See page 64 "Mottling (Paper with Indentations and Color is uneven and small white Other Textured Paper)". spots are visible inside a solid image. With color copiers, white spots may not appear when two colors are overlapped.
Page 36 3. Troubleshooting Image Quality Problems DFP743 Small classification Sample image Description Background stains • See page 50 "White Toner Stains on the Background on Granular stains are visible in Black Paper (Banding-Shape)". unprinted areas of the paper. DFP741 Backside stains •...
Page 37 Image Index Small classification Sample image Description Edge stains • See page 50 "Granular Toner Stains on the Paper Edges The side edges of paper are stained. (When Printing on Thick Paper)". • See page 53 "Stains at the Edge of the Paper". DFP744 Middle classification: Disturbed image Image/text are disturbed and do not replicate the original.
Page 38 3. Troubleshooting Image Quality Problems Small classification Sample image Description Image contraction Image contracted abnormally in comparison with the original DFP747 Skew The corners of an image copied from a rectangle original are not square. DFP748 Middle classification: Scratches Stains in the shape of vertical streaks which seem to result from being scratched by the guide plate ribs or other parts.
Page 39 Image Index DFP751 Small classification Sample image Description Vertical image shift Images and lines shifted in the paper feed direction. DFP750 Horizontal image shift Images and lines shifted in the direction perpendicular to the paper feed direction. DFP751 Vertical color shift Color shifted in the paper feed direction where colors should be overlaid.
Page 40 3. Troubleshooting Image Quality Problems Small classification Sample image Description Horizontal color shift Color shifted in the direction perpendicular to the paper feed direction where colors should be overlaid. DFP753 Others • For details see, page 130 "Insufficient Gloss: Clear Image". •...
Page 41: Image Quality Problem: Full Page
4. Image Quality Problem: Full Page Dirtied Printouts Stains on the Area up to 204 mm (8 inches) Away from the Leading Edge of the Paper (Transparent Film, etc.) When printing is performed on transparency film, stains may appear from the leading edge to 204 mm (8 inches) inwards.
Page 42: Toner Blasting (Lines)
4. Image Quality Problem: Full Page • 1237-02: Print Speed (Sheet Interval Adj): FCS: Clear/Special • 1237-03: Print Speed (Sheet Interval Adj): FCS: White • 1237-04: Print Speed (Sheet Interval Adj): FCS: Metallic For example, if the present value is "100%", change it to "80%". Print 2 or more sheet.
Page 43 Dirtied Printouts Solution: If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1212: [Image Transfer Output], and then check the present value in the following corresponding settings. •...
Page 44 4. Image Quality Problem: Full Page Finished! Adjust the value for the intermediate (image) transfer output until the side effect is no longer noticeable. Select 1341: [Motor Speed], and then increase the value of 01: [Transfer Timing Roller] by 0.1%. •...
Page 45: Toner Blasting (Trailing Edge)
Dirtied Printouts 1239-01: Margin: BW/FC/FCS/S: Leading Edge 1239-03: Margin: FCS: Leading Edge: Clear/Special 1239-04: Margin: FCS: Leading Edge: White 1239-05: Margin: FCS: Leading Edge: Metallic By increasing the value, the image moves in the direction to increase the leading edge margin (and decrease the trailing edge margin).
Page 46 4. Image Quality Problem: Full Page In [Detailed settings] for custom paper, Select 1212: [Image Transfer Output], and then check if the value for the intermediate (image) transfer output for the mode you use is set to "+10" (upper limit). •...
Page 47: Toner Blasting (When Printing In 2 Colors)
Dirtied Printouts High Quality • 1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS • 1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special • 1231-12: Print Speed: FCS: Fuser Setting HQ: White • 1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic •...
Page 48 4. Image Quality Problem: Full Page Occurrence conditions: • When toner adhesion is high • When printing on slippery paper • Paper is stored at low temperature or humidity Solution: If the paper is not registered as custom paper, register the brand of the paper. Check to see if there is a margin to reduce the line speed, and if reducing throughput causes any problems.
Page 49 Dirtied Printouts In [Detailed settings] for custom paper, select 1232: [Fusing Temperature] and decrease the temperature setting for the fusing heat roller by 5°C according to the color mode you wish to use. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp •...
Page 50 4. Image Quality Problem: Full Page • 1232-71: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-72: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: White • 1232-73: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Metallic In [Detailed settings] for custom paper, select 1232: [Correct Temp: Initial Feed], and then set the temperature adjustment for the initial paper feeding to "0"...
Page 51 Dirtied Printouts • 1232-61: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Pre-Feed: Metallic • 1232-79: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Pre-Feed: Clear/Special • 1232-80: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Pre-Feed: White • 1232-81: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Pre-Feed: Metallic Print the image.
Page 52: Granular Toner Stains On The Paper Edges (When Printing On Thick Paper)
4. Image Quality Problem: Full Page No further improvement is likely. • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
Page 53: Toner Stains Of Mixed Colors (Horizontal Streaks)
Dirtied Printouts Solution: If the paper is not registered as custom paper, register the brand of the paper. In the [Machine: Image Quality] group on the [Operator Adjust.] menu, select 0201: [Execute Image Quality Adjustment] and execute 04: [Adjust Image Density (Including special color)].
Page 54 4. Image Quality Problem: Full Page DXT862 Cause: If printing starts after the machine is left in a low temperature environment for a while, the toner accumulated on the cleaning blade of the intermediate transfer belt cleaning unit is not sufficiently removed, resulting in mixed-color toner stains.
Page 55: Stains At The Edge Of The Paper
Dirtied Printouts Go to the next step. Set Energy Saver mode and other energy-saving modes to "Off". Print the image. Has the problem been resolved? Finished! Go to the next step. Replace ITB Cleaning Unit. For details, see "98 ITB Cleaning Unit", Regular Maintenance Guide. Print the image.
Page 56 4. Image Quality Problem: Full Page • 1232-52: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: White • 1232-53: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Metallic • 1232-71: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Clear/Special •...
Page 57 Dirtied Printouts Print and check if the stain on the edge of the paper is within the acceptable range. (Print 10 or more sheets.) Finished! Go to the next step. Change the print speed to "Low". Print and check if the stain on the edge of the paper is within the acceptable range. (Print 10 or more sheets.) Finished! Go to the next step.
Page 58: Disturbed Image
4. Image Quality Problem: Full Page Disturbed Image Deterioration of Graininess in Halftone Areas DXT864 Cause: This may occur if: • Printing is performed after the machine is left idle for a while. • Printing is done at high temperature or humidity •...
Page 59 Disturbed Image Print the image. Has the problem been resolved? Finished! No further improvement is likely. Contact your service representative.
Page 60: Uneven Density
4. Image Quality Problem: Full Page Uneven Density The Areas around the Images Using the Special Toner (clear) Blur Blurring occurs around a clear image. M0EBIC0091 Cause: A slight gap is created near the areas with uneven density between the images using the special toner (clear) and those using the color toner, preventing the reverse transfer of images using the color toner, resulting in slightly thicker images using color toner around the images using the special toner (clear).
Page 61: Uneven Density Within 90 Mm (3.5 Inches) Of The Trailing Edge
Uneven Density Start over from Step 2. If the problem persists even after decreasing the value to "-10", there is no other solution. Select the best sample printout and print under that condition. Uneven Density within 90 mm (3.5 inches) of the Trailing Edge Printing in the area extending approximately 90 mm (3.5 inches) from the trailing edge is fainter or denser.
Page 62: Faint Small Solid-Fill Images
4. Image Quality Problem: Full Page • If the problem worsens, conversely increase the line speed of the transfer timing roller in steps of 0.1% within the range up to 0.5%, and then apply the optimal result. • If the print result is unsatisfactory even after adjusting the value within ±0.5%, there is no other solution.
Page 63: Faint Black / White Streaks In The Areas Using Only Black
Uneven Density Go to the next step. Has the image quality improved? • If uncertain, set the prior value of 1212: [Image Transfer Output] to "+5", and then confirm the image quality. • Depending on the paper, it may be difficult to see the effect of just increasing the value by one step.
Page 64 4. Image Quality Problem: Full Page M0EBIC0093 Cause: The electricity charge for the black toner is lower than that for other colors, so the color may become faint when transferred to paper. In addition, the paper transfer bias in full color mode is higher than in black-and-white mode, so the transferability of the low-charged black toner is prone to be low.
Page 65 Uneven Density Check if the density has improved. Go back to Step 2 and increase the image transfer output by one more step. Print again to check the adjustment result. • Depending on the paper, increasing the image transfer output by one step may not be sufficient to achieve the effect.
Page 66: Mottling (Paper With Indentations And Other Textured Paper)
4. Image Quality Problem: Full Page If improvement is observed, apply the most effective image and paper transfer output settings, and then go to Solutions (b) to (d). (b) Execute Toner Refreshing. Print 30 sheets of solid-fill images with 100% density for each color of CMYK. (c) Increase the amount of black toner adhesion.
Page 67 Uneven Density Solution: (a) Execute Toner Refreshing. Print 30 sheets of solid-fill images with 100% density for each color of CMYK. • The page yield decreases as a side effect. (b) Adjust the image transfer output. If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1212: [Image Transfer Output], and then decrease the value by 5.
Page 68: Glossy Ghosting (Horizontal Glossy Streaks)
4. Image Quality Problem: Full Page Adjust the paper transfer voltage while printing and checking the image. White spots or toner blasting 1. Change the paper transfer voltage to "-2" • 1214-03: Paper Transfer Output: BW: Side 1: AC • 1214-04: Paper Transfer Output: BW: Side 2: AC •...
Page 69 Uneven Density Cause: If there are areas, in which the toner fails to be on the fusing belt, such as the interval between sheets, the margins at the leading and trailing edges of the paper and areas with white spots, such areas have less toner wax adhesion and less glossiness, resulting in ghosting.
Page 70 4. Image Quality Problem: Full Page • 1231-06: Print Speed: S: Clear/Special • 1231-07: Print Speed: S: White • 1231-08: Print Speed: S: Metallic High Quality • 1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS • 1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special •...
Page 71 Uneven Density • 1232-71: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-72: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: White • 1232-73: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Metallic Print 10 or more A3 sheets. Has the problem been resolved? Proceed to Step 3.
Page 72 4. Image Quality Problem: Full Page • 1232-55: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: Clear/ Special • 1232-56: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: White • 1232-57: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: Metallic •...
Page 73: Multiple Horizontal Glossy Streaks (Glossy Ghosting)
Uneven Density Start over from Step 5. Is the toner fusibility within the permissible range? • The required level of fusibility is as follows. • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. •...
Page 74 4. Image Quality Problem: Full Page Cause: When continuous printing of images with high coverage is performed, the toner components (toner wax) adheres to the fusing belt, causing the glossy ghosting in the margins at the leading and trailing edges of the paper to remain on the fusing belt.
Page 75: Uneven Density Between The Left And Right Sides (At 40 Mm (1.6 Inches) Intervals)
Uneven Density • If there is no room to reduce the print speed (interval between printing each sheet), there is no other solution. Print and check if the issue is within the acceptable range. (Print 50 or more A3 sheets.) Finished! Start over from Step 6.
Page 76: Uneven Density (Textured Paper)
4. Image Quality Problem: Full Page If the problem persists, increase the room temperature (to 20°C or higher) and leave the machine idle for 30 minutes or longer. • Increasing the room temperature eases the increase in resistance of the charge roller and reduces the lack of charge, thereby reducing the potential difference.
Page 77 Uneven Density Cause: White spots on indentations are caused by setting the paper transfer voltage too low. Excessive density on indentations is caused by setting the paper transfer voltage too high. Occurrence conditions: • Heavily textured paper is used. • Thick paper is used. •...
Page 78 4. Image Quality Problem: Full Page Go to next step. Check to see if the mottling has been resolved. Finished! Go to next step. Check to identify the problem (white spots or higher density on indentations). • White spots 1. Increase the value for [Paper Transfer Output] by one step. 1214-03: Paper Transfer Output: BW: Side 1: AC 1214-04: Paper Transfer Output: BW: Side 2: AC 1214-07: Paper Transfer Output: FC/FCS: Side 1: AC...
Page 79 Uneven Density 1214-08: Paper Transfer Output: FC/FCS: Side 2: AC 1214-11: Paper Transfer Output: FCS: Side 1: AC 1214-12: Paper Transfer Output: FCS: Side 2: AC 1214-21: Paper Transfer Output: S: Side 1: AC: Clear/Special 1214-22: Paper Transfer Output: S: Side 1: AC: White 1214-23: Paper Transfer Output: S: Side 1: AC: Metallic 1214-25: Paper Transfer Output: S: Side 2: AC: Clear/Special 1214-26: Paper Transfer Output: S: Side 2: AC: White...
Page 80 4. Image Quality Problem: Full Page • 1214-15: Paper Transfer Output: S: Side 1: Metallic • 1214-17: Paper Transfer Output: S: Side 2: Clear/Special • 1214-18: Paper Transfer Output: S: Side 2: White • 1214-19: Paper Transfer Output: S: Side 2: Metallic (d) Adjust the image (intermediate) transfer output.
Page 81: Uneven Density (Metallic Paper Or Textured Paper)
Uneven Density • Increasing the toner adhesion affects the page yield. • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. Uneven Density (Metallic Paper or Textured Paper) Vertical Band of Uneven Density in Two-Color Solid-Fill Images. DXT851 Cause: On metallic and textured papers, the image transfer area is narrower.
Page 82 4. Image Quality Problem: Full Page Print the image. Has the problem been resolved? Finished! Go to the next step. • Increasing the value increases the density. If it becomes too thick by the abovementioned adjustment, increase the value by one step at a time. •...
Page 83: Uneven Density: Mixed-Color Images
Uneven Density • 1214-11: Paper Transfer Output: FCS: Side 1: AC • 1214-12: Paper Transfer Output: FCS: Side 2: AC • 1214-13: Paper Transfer Output: S: Side 1: Clear/Special • 1214-14: Paper Transfer Output: S: Side 1: White • 1214-15: Paper Transfer Output: S: Side 1: Metallic •...
Page 84: Mottling Of Uneven Density On Half-Tone Images
4. Image Quality Problem: Full Page DXT847 Cause: When the temperature of the environment is low, such as on a wintery morning, the resistance of the paper transfer bias roller increases, resulting in insufficient transfer current in the paper transfer unit, causing a paper transfer failure.
Page 85: Uneven Glossiness Occurring Partly
Uneven Density Cause: Occurs when the speed of the intermediate transfer belt and the speed of the paper feed are different. Solution: If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for custom paper, select 1341: [Motor Speed] and check the value in 02: [Paper Transfer Belt].
Page 86 4. Image Quality Problem: Full Page Cause: The fusing belt is stained by the toner wax. Occurrence conditions: • When printing on coated paper with a thickness of medium thickness or more • When printing images covering a high image area Solution: In the printer driver screen of Fiery Command WorkStation, set Fuser Setting HQ mode.
Page 87 Uneven Density • 1231-12: Print Speed: FCS: Fuser Setting HQ: White • 1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic • 1231-15: Print Speed: S: Fuser Setting HQ: Clear/Special • 1231-16: Print Speed: S: Fuser Setting HQ: White • 1231-17: Print Speed: S: Fuser Setting HQ: Metallic If the present value is [High], select [Middle].
Page 88 4. Image Quality Problem: Full Page Start over from Step 1. Is the toner fusibility within the permissible range? • The required level of fusibility is as follows. • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. •...
Page 89 Uneven Density Set the value in the following corresponding settings to 5°C. Productivity Priority • 1232-03: Fusing Temperature: BW/FC/FCS: Correct Temp: Pre-Feed • 1232-14: Fusing Temperature: FCS: Correct Temp: Pre-Feed: Clear/Special • 1232-15: Fusing Temperature: FCS: Correct Temp: Pre-Feed: White •...
Page 90: Wavy Uneven Glossiness (On Thin Coated Paper)
4. Image Quality Problem: Full Page • The toner does not come off even if it is rubbed by the cloth for cleaning the contact glass. Finished! Contact your service representative. • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver.
Page 91 Uneven Density Solution: On the printer driver dialog box of Fiery Command WorkStation, set the fusibility throughput setting to Fuser Setting HQ mode. • When using paper with a thickness of Paper Weight 6 to 9, throughput may be reduced. Print 10 or more A3 sheets.
Page 92 4. Image Quality Problem: Full Page When decreasing the Go to "(a) Changing the fusing temperature (If [Print Speed] is set to print speed to [Middle] [Middle])". When decreasing the Go to "(b) Changing the fusing temperature (If [Print Speed] is set to print speed to [Low] [Low])".
Page 93 Uneven Density • The toner does not come off even if it is rubbed by the cloth for cleaning the contact glass. Finished! Change the print speed to "Low". Go to "(b) Changing the fusing temperature (If [Print Speed] is set to [Low])". (b) Changing the fusing temperature (If [Print Speed] is set to [Low]) Select 1232: [Fusing Temperature], and then decrease the value in the following corresponding settings by 20°C.
Page 94 4. Image Quality Problem: Full Page • 1232-35: Fusing Temperature: S: Correct Temp: Pre-Feed: White • 1232-36: Fusing Temperature: S: Correct Temp: Pre-Feed: Metallic High Quality • 1232-48: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Correct Temp: Pre-Feed • 1232-59: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Pre-Feed: Clear/ Special •...
Page 95: Hazing On The Sides / Arched Glossy Streaks
Uneven Density • When printing many sheets of images with high coverage, substantial toner wax adheres to the fusing belt and worsens the ghosting. In such a case, the ghosting can be reduced by executing 02: "Uneven Gloss (Short Time)" in 0508 "Manually Smooth Fusing Belt" in Adjustment Settings for Operators 1 to 5 times.
Page 96 4. Image Quality Problem: Full Page Arched glossy streaks appear due to contact with unfused images in the paper path, causing partial fluctuation to the gloss. Solution: (a) Voids appear on the first 8 sheets of A3 paper during initial feeding In the [Machine: Maintenance] group on the [Operator Adjust.] menu, execute 0512-01: [Fuser Unit Speed Adjustment].
Page 97: Uneven Glossiness On Side 2 (Back Of The Paper)
Uneven Density Uneven Glossiness on Side 2 (Back of the Paper) Uneven glossiness appears on side 2 in duplex printing. M0EBIC0094 Cause: Due to the paper curl happening during the feeding of Side 1 (front), the paper is lifted, and when Side 2 (back) enters the fusing nip, the trailing edge of the paper comes into contact with the fusing belt, resulting in uneven glossiness.
Page 98 4. Image Quality Problem: Full Page • 1231-08: Print Speed: S: Metallic High Quality • 1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS • 1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special • 1231-12: Print Speed: FCS: Fuser Setting HQ: White •...
Page 99 Uneven Density • 1232-73: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Metallic Print 10 or more A3 sheets. Has the problem been resolved? Go to the next step. Start over from Step 1. Is the toner fusibility within the permissible range? •...
Page 100 4. Image Quality Problem: Full Page • 1232-57: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: Metallic • 1232-75: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Initial Feed: Clear/Special • 1232-76: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Initial Feed: White •...
Page 101: Uneven Glossiness When Printing On Thick Paper
Uneven Density Is the toner fusibility within the permissible range? • The required level of fusibility is as follows. • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. •...
Page 102 4. Image Quality Problem: Full Page Occurrence conditions: • Printing is done at low temperature • Paper with a thickness equivalent to Paper Weight 8 or higher is used • Coated paper with a thickness equivalent to Paper Weight 5 or higher is used •...
Page 103 Uneven Density Print 3 or more A3 sheets. Has the problem been resolved? Finished! Go to the next step. If there is room to reduce the print speed (from "High" or from "Middle"), and if the reduced throughput does not cause a problem, go to the next step. Otherwise, perform the procedure from Step 14.
Page 104 4. Image Quality Problem: Full Page • 1232-28: Fusing Temperature: S: Heat Roller Temp: Metallic High Quality • 1232-46: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Heat Roller Temp • 1232-51: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Clear/Special •...
Page 105 Uneven Density • 1232-34: Fusing Temperature: S: Correct Temp: Pre-Feed: Clear/Special • 1232-35: Fusing Temperature: S: Correct Temp: Pre-Feed: White • 1232-36: Fusing Temperature: S: Correct Temp: Pre-Feed: Metallic High Quality • 1232-48: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Correct Temp: Pre-Feed •...
Page 106: River Marks (Worm Tracks)
4. Image Quality Problem: Full Page Print 3 or more A3 sheets. Has the problem been resolved? Go to the next step. Start over from Step 14. Is the toner fusibility within the permissible range? • The required level of fusibility is as follows •...
Page 107 Uneven Density Cause: Synthetic paper, film media (transparencies), clear files This occurs when the paper ripples at the fusing nip entrance and exit and the image comes into non-pressure contact with the fusing belt. Thin paper The paper ripples in the paper grain direction, resulting in uneven heat applied to the paper at the fusing nip entrance and exit.
Page 108 4. Image Quality Problem: Full Page • 1231-02: Print Speed: FCS: Clear/Special • 1231-03: Print Speed: FCS: White • 1231-04: Print Speed: FCS: Metallic • 1231-06: Print Speed: S: Clear/Special • 1231-07: Print Speed: S: White • 1231-08: Print Speed: S: Metallic High Quality •...
Page 109 Uneven Density • 1232-51: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-52: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: White • 1232-53: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Metallic • 1232-71: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Clear/Special •...
Page 110 4. Image Quality Problem: Full Page High Quality • 1232-47: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Correct Temp: Initial Feed • 1232-55: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: Clear/ Special • 1232-56: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Initial Feed: White •...
Page 111: Worm Marks, Creases, And Fusing Errors On Envelopes
Uneven Density Print 10 or more A3 sheets. Has the problem been resolved? Proceed to Step 7. Start over from Step 5. Is the toner fusibility within the permissible range? • The required level of fusibility is as follows. • The printed image does not come off. •...
Page 112 4. Image Quality Problem: Full Page DFP435 Cause: • Worm marks and creases occur when envelopes containing moisture is used and lose rigidity is lost due to storage conditions or the conditions in which the envelopes are fed. • Fusing errors may be caused by the envelope nip width value in the initial setting being specified incorrectly.
Page 113 Uneven Density Solution: (Fusing Errors on Envelopes) If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for custom paper, check 1244-01: [Fusing Pressure Roller On Before Fusing]. If it is set to "On", set it to "Off", go to the next step. If it is already set to "Off", proceed to Step 4.
Page 114: Unprinted
4. Image Quality Problem: Full Page Unprinted Faint Color at the Leading Edge of the Paper (White Spots) Insufficient transfer current Density fluctuation-like faint prints appear. DXT856 Excessive transfer current Small white spots appear. DXT857 Cause: • Insufficient transfer current is prone to occur when using thin paper is used. •...
Page 115 Unprinted Solution: 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 116: Faint Color At The Trailing Edge Of The Paper (White Spots)
4. Image Quality Problem: Full Page Start over from Step 4. If the problem persists even after increasing the value to the upper limit, there is no other solution. • Increasing or decreasing the current applied to the leading edge of the paper may increase the occurrence of white spots at the leading edge.
Page 117 Unprinted Solution: Measure the length (in mm) of the area from the trailing edge of the paper where the print is faint. If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1216: [Paper Transfer Output Correction: Paper Edge], and then adjust the values in the following settings to "area where the print is faint + 10 mm"...
Page 118: When Using Transparent Film
4. Image Quality Problem: Full Page • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. When Using Transparent Film White spots appear at the trailing edge when printing is performed on a transparent film. M0EBIC0097 Cause: This may occur when toner is compressed and causes blotching at the sides of the paper (transparent...
Page 119: White Spots (Unprinted: Around Clear-Toner Images)
Unprinted • After performing the solution, it is recommended to perform the color calibration of the external printer controller. White Spots (Unprinted: Around Clear-toner Images) Colorless spots appear around clear-toner images. Normal DFP424 Unprinted DFP484 Cause: Uneven density occurs due to overlaying a special color (clear) on a CMYK toner image. Due to this uneven density, some toner fails to be transferred during paper transfer from the intermediate transfer belt [B] to the paper [A], resulting in white spots.
Page 120 4. Image Quality Problem: Full Page M0EBIC0098 1. Clear Occurrence conditions: • When printing in FCS mode or FCS mode with higher priority to image quality • When there is a CMYK toner image around a special toner (clear) image (blue is especially prone to white spots) •...
Page 121: White Streaks When Printing On Cast-Coated Paper
Unprinted • 1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS • 1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special • 1231-12: Print Speed: FCS: Fuser Setting HQ: White • 1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic • 1231-15: Print Speed: S: Fuser Setting HQ: Clear/Special •...
Page 122 4. Image Quality Problem: Full Page M0EBIC0127 Cause: This is caused by condensation. The following are possible causes. • Since the printed surface is impervious to moisture, a lot of water vapor is generated from the opposite side (back of the paper). •...
Page 123: White Spots Caused By Fingerprints
Unprinted checking the printed image. It is recommended to keep the temperature within +50 °C from the default and to not exceed it. White spots caused by fingerprints M0EDIC1354 Cause: Fingerprints stick on paper, which changes the electrical resistance of the paper and the quality of image transfer changes, causing white spots.
Page 124 4. Image Quality Problem: Full Page M0EDIC1334 Cause: The part of the paper feed tray exposed to the fan's blown air is dry, causing a difference in the moisture (friction) on the paper surface. The lack of paper transfer bias at the dried part of the paper feed tray exposed to the fan's blown air causes paper transfer failure.
Page 125: Rippling, Uneven Streaks, Or White Spots (Caused By Condensation)
Unprinted Rippling, Uneven Streaks, or White Spots (Caused by Condensation) Waves, irregular lines DXT853 Voids DXT854 Cause: At the upper frame of the heat pipe and the scanning part of the detection unit, steam from the paper adheres to the low-temperature part as condensation. The condensation turns to water droplets, which fall on or adhere to the paper.
Page 126: Patchy Images On Text Or At The Edge Of The Image
4. Image Quality Problem: Full Page Solution: • Do not store paper in a high humidity environment. • Store paper in moisture-proof packaging materials. Patchy Images on Text or at the Edge of the Image Dropouts (character voids) occur when characters or lines are printed in color mode. DFP356 Cause: The amount of toner adhesion is greater on colored text and on the edge of solid-fill images, which may...
Page 127 Unprinted Solution: (a) Adjusting the image density Enable image processing. 1. Launch Fiery Command WorkStation. 2. Click the job properties for the print image. 3. Click the color tab. 4. Click the color input. 5. Check the CMYK source setting. If it is set to "ColorWise OFF", change it to another setting. When printing images with high toner adhesion and density, enable Toner Reduction.
Page 128: Patchy Image (Clear Toner Image)
4. Image Quality Problem: Full Page • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. • Doing this may cause color tones to change. (b) Adjusting the paper transfer speed If the paper is not registered as custom paper, register the brand of the paper.
Page 129 Unprinted DFP431 DFP432 Cause: This may occur when layered special toner (clear) is compressed by pressure during transfer. Occurrence conditions: • High toner adhesion • Printing is done at high temperature or humidity • Printing solid fills • Slippery paper is used •...
Page 130 4. Image Quality Problem: Full Page Solution: (a) Adjusting the image density Enable image processing. 1. Launch Fiery Command WorkStation. 2. Click the job properties for the print image. 3. Click the color tab. 4. Click the color input. 5. Check the CMYK source setting. If it is set to "ColorWise OFF", change it to another setting. When printing images with high toner adhesion and density, enable Toner Reduction.
Page 131 Unprinted • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. • Doing this may cause color tones to change. (b) Adjusting the paper transfer speed If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1341: [Motor Speed], decrease the value in 02: [Paper Transfer Belt] by 0.1%.
Page 132: Faintness And Other Problems
4. Image Quality Problem: Full Page Faintness and Other Problems Images Stretching (Margin Narrow at the Trailing Edge of the Paper) The margin at the trailing edge of the paper becomes narrow or disappears. DXT863 Cause: The fusing speed is too high for the transfer speed, causing the image to stretch and the margin at the trailing edge of the paper to become narrow.
Page 133 Faintness and Other Problems M0EBIC0075 [A] Normal [B] When blurred Cause/Occurrence conditions: The fusing temperature is too low and the gloss is insufficient in the areas using the special toner (clear). This is prone to occur when printing is performed in the mode for the special toner (clear) on thick paper such as that with Paper Weight 7 or 8.
Page 134 4. Image Quality Problem: Full Page • 1232-53: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Metallic • 1232-71: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-72: Fusing Temperature: S: Fuser Setting HQ: Heat Roller Temp: White •...
Page 135: Excessive Gloss
Faintness and Other Problems Excessive Gloss The printed image is excessively glossy. Cause: Due to toner characteristics, the sensitivity to gloss and temperature is prone to be high. The gloss is prone to be high especially on thick or matte paper. •...
Page 136 4. Image Quality Problem: Full Page Is the paper curled? Check if the curl is within the acceptable range. Finished! Go to the next step. In [Detailed settings] for custom paper, select 1321: [Correct Paper Curl], and then execute decurling. To correct curls facing up, specify "U Curl Correction Level: Large"...
Page 137: Waves: Trailing Edge (A4 And Larger)
Faintness and Other Problems Finished! • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. Waves: Trailing Edge (A4 and larger) Waves appear on the trailing edge of the paper perpendicular to the feed direction. M0EBIC0109 Cause: If fusing is performed too quickly for paper delivery, the resulting slack at the trailing edge of the paper...
Page 138 4. Image Quality Problem: Full Page M0EBIC0087 [A]: Ghosting occurs at an interval of 278 mm (10.9 mm) (one rotation of the fusing belt). [B]: White stains on the entire image Cause: Because of the heat on the fusing unit, the surface profile of the fusing belt may be transferred to the transparent film, causing white ghosting on the part of the transparent film where images are not printed.
Page 139 Faintness and Other Problems • 1231-10: Print Speed: BW/FC/FCS: Fuser Setting HQ: BW/FC/FCS • 1231-11: Print Speed: FCS: Fuser Setting HQ: Clear/Special • 1231-12: Print Speed: FCS: Fuser Setting HQ: White • 1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic •...
Page 140 4. Image Quality Problem: Full Page Is the toner fusibility within the permissible range? • The required level of fusibility is as follows. • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. •...
Page 141 Faintness and Other Problems • 1232-12: Fusing Temperature: FCS: Correct Temp: Initial Feed: Metallic • 1232-30: Fusing Temperature: S: Correct Temp: Initial Feed: Clear/Special • 1232-31: Fusing Temperature: S: Correct Temp: Initial Feed: White • 1232-32: Fusing Temperature: S: Correct Temp: Initial Feed: Metallic •...
Page 142 4. Image Quality Problem: Full Page In [Detailed settings] for the custom paper you are using, select 1232: [Fusing Temperature], and then decrease the value in the following corresponding settings by 5°C. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp •...
Page 143 Faintness and Other Problems • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
Page 144 4. Image Quality Problem: Full Page...
Page 145: Image Quality Problem: Lines/Streaks
5. Image Quality Problem: Lines/ Streaks Bands Banding (General) Density fluctuation occurs periodically in the vertical direction to the paper feed direction. CWH407 Cause: Density fluctuation occurs when the pitch phase between the charge roller, developing roller, paper transfer roller, and photoreceptor is different. Solution: The solution depends on the length of intervals whereby the density fluctuation occurs.
Page 146: Banding: 189 Mm (7.5 Inches) Intervals
5. Image Quality Problem: Lines/Streaks Print the image. Has the problem been resolved? Finished! Go to the next step. Print a full-page, half-tone A3 sheet for each of cyan, magenta, yellow, and black, and then measure by a ruler, etc., the intervals between the spots affected by density fluctuation.
Page 147 Bands 189 mm (7.5 in.) DFP395 Cause: When the operating environment changes (from high temperature to low temperature, or from low temperature to high temperature), or when the printer is used after it is left idle for a while, the photoconductor fails to be uniformly charged due to the temperature difference at the parts that come into contact with the photoconductor's developing/cleaning units (marked with in the figure below), causing uneven density to occur.
Page 148: Banding Occurring Every 3 Mm (0.1 Inches) After Solid-Fill Image
5. Image Quality Problem: Lines/Streaks Solutions: In the [Machine: Maintenance] group on the [Operator Adjust.] menu, execute 0501: [Execute Process Adjustment] 3 times. Print the image. Has the problem been resolved? Finished! Start over from Step 1. Banding Occurring Every 3 mm (0.1 inches) after Solid-Fill Image When printing an image including solid-fill parts is performed, jitters appear in the area from the solid-fill parts to a point 95 mm (3.7 inches) away from the trailing edge of the paper, extending approximately 20 mm (0.8 inches) at intervals of 3 mm (0.1 inches).
Page 149 Bands Solutions: If printing an original including both solid-fill and half-tone parts on the same page Can you rotate the original by 90 or 180 degrees? DXT832 • A: Rotation by 90 degrees • B: Rotation by 180 degrees Rotate the original by 90 or 180 degrees. Proceed to Step 3.
Page 150 5. Image Quality Problem: Lines/Streaks • 1231-12: Print Speed: FCS: Fuser Setting HQ: White • 1231-13: Print Speed: FCS: Fuser Setting HQ: Metallic • 1231-15: Print Speed: S: Fuser Setting HQ: Clear/Special • 1231-16: Print Speed: S: Fuser Setting HQ: White •...
Page 151 Bands Solutions: If printing an original that has solid-fill images at the trailing edge of a page and half-tone images at the leading edge of the next page Can you rotate the original by 90 or 180 degrees? DXT832 • A: Rotation by 90 degrees •...
Page 152: Banding At Random Pitch (Metallic Paper)
5. Image Quality Problem: Lines/Streaks Print the image. Has the problem been resolved? Finished! No further improvement is likely. • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. Banding at Random Pitch (Metallic Paper) When printing is performed on metallic paper, white streaks 5 to 40 mm (0.2 to 1.6 inches) long appear all over the paper perpendicular to the paper feed direction.
Page 153: Banding In Solid-Fill Areas Printed With Metallic (Gold) Toner
Bands • 1214-06: Paper Transfer Output: FC/FCS: Side 2 • 1214-09: Paper Transfer Output: FCS: Side 1 • 1214-10: Paper Transfer Output: FCS: Side 2 • 1214-13: Paper Transfer Output: S: Side 1: Clear/Special • 1214-14: Paper Transfer Output: S: Side 1: White •...
Page 154: Horizontal Black Streaks In The Area 9 Mm (0.3 Inches) From The Leading Edge Of The Paper
5. Image Quality Problem: Lines/Streaks Solutions: You can resolve the problem by decreasing the line speed of the paper transfer belt. In [Detailed settings] for custom paper, select 1341: [Speed Adjustment], and then make adjustments in 01: [Transfer Timing Roller] and 02: [Paper Transfer Belt] in the following combinations, print the image to check the results, and then select the best combination among them.
Page 155 Bands 9 mm (0.35 in.) DXT838 Cause: The leading edge of the paper slackens and bumps into the intermediate transfer belt, causing black streaks to appear in the area 9 mm (0.3 inches) from the leading edge of the paper. This is prone to occur to coated or other smooth paper.
Page 156: Horizontal Black Bands In The Area 60 Mm (2.3 Inches) From The Leading Edge Of The Paper (Metallic Paper)
5. Image Quality Problem: Lines/Streaks Horizontal Black Bands in the Area 60 mm (2.3 inches) from the Leading Edge of the Paper (Metallic Paper) Halftone black bands perpendicular to the paper feed direction appear in the area 60 mm (2.3 inches) from the leading edge of the paper.
Page 157: Horizontal Streaks (Synthetic Paper)
Bands Horizontal Streaks (Synthetic Paper) When printing halftone images is performed synthetic paper, multiple white streaks appear perpendicular to the paper feed direction. DXT841 Cause: The electrical charge on high-resistance paper is high. When such paper enters the fusing nip, toner blasting occurs due to electrical discharge, resulting in horizontal streaks.
Page 158: Horizontal Streaks Of Uneven Density (Low-Resistance Paper)
5. Image Quality Problem: Lines/Streaks • 1214-13: Paper Transfer Output: S: Side 1: Clear/Special • 1214-14: Paper Transfer Output: S: Side 1: White • 1214-15: Paper Transfer Output: S: Side 1: Metallic • 1214-17: Paper Transfer Output: S: Side 2: Clear/Special •...
Page 159 Bands Cause: The paper transfer current tends to be transferred from the paper surface to the transfer timing roller and results in fluctuations in the paper transfer bias, causing streaks and uneven density. Solutions: If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1214: [Paper Transfer Output], and then adjust the values in the following settings in steps of ±1 according to the mode in use.
Page 160: Horizontal Streaks In The Area 280-300 Mm (11-11.8 Inches) From The Leading Edge Of The Paper (Shock Jitter When Using Stiff Paper)
5. Image Quality Problem: Lines/Streaks • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. Horizontal Streaks in the Area 280-300 mm (11-11.8 inches) from the Leading Edge of the Paper (Shock Jitter When Using Stiff Paper) When printing is performed on very stiff paper, a streak appears in the area 280-300 mm (11-11.8 inches) from the leading edge of the paper.
Page 161: Paper Transfer Shock Jitter / Shock Jitter (When The Positions Of K And S Toners Have Been Switched)
Bands In [Detailed settings] for the custom paper you are using, select 1341: [Motor Speed], and then check the present value in 02: [Paper Transfer Belt]. Is it lower than 0.5%? Go to the next step. No further improvement is likely. Increase the value in [Paper Transfer Belt] by 0.1%.
Page 162 5. Image Quality Problem: Lines/Streaks Cause: Vibration of the intermediate transfer belt due to paper transfer shock jitter occurs, resulting in image transfer fluctuation and one or more horizontal bands. • This occurs on the second and later sheets due to the intermediate transfer belt vibration made when the leading edge of the paper enters the paper transfer nip and when the trailing edge of the paper exits from the paper transfer nip (except for banner sheets).
Page 163 Bands Proceed to Step 7. Switch the positions of K and S toners. (back to their normal positions) Print the image. Has the problem been resolved? Finished! Go to the next step. If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for custom paper, select 1237: [Print Speed (Sheet Interval Adj)], and then decrease the values of the following items according to the mode you use.
Page 164 5. Image Quality Problem: Lines/Streaks • 1212-07: Image Transfer Output: FC/FCS: White • 1212-08: Image Transfer Output: FC/FCS: Metallic • Increasing the value may increase the density. As required, execute process Setting and calibration. • The page yield becomes affected. •...
Page 165: Vertical (In-Track) White Streaks (Glossy)
Bands If presently set to [Middle], lower it to [Low], and then print again to see if there is any improvement. If the problem persists even after decreasing the value to "Low", there is no other solution. • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver.
Page 166 5. Image Quality Problem: Lines/Streaks Feed blank paper. The problem is resolved by feeding approximately 50 sheets.
Page 167: Streaks
Streaks Streaks Horizontal (Cross-track) Black Streaks at the Edge of the Image The horizontal column density fluctuates at 11 mm (0.4 inches) intervals on the right edge perpendicular to the paper feed direction. This fluctuation does not occur in the area that is 90 mm (3.6 inches) or less from the trailing edge.
Page 168: Glossy Lines At The Edge Of The Paper
5. Image Quality Problem: Lines/Streaks Go to the next step. Increase the line speed of the transfer timing roller by 0.1%. Print the image. Has the problem been resolved? Finished! Start over from Step 4. • Increasing the speed of the transfer timing roller may cause a change in density in the area 90 mm (3.6 inches) from the trailing edge of the paper.
Page 169 Streaks Print the image. Has the problem been resolved? Go to the next step. Start over from Step 1. If the problem persists even after executing [Belt Scratches] 5 times, go to the next step. If the fuser unit can be replaced, replace the fusing unit, and then go to Step 5. For details, see "123 Fuser Unit", Regular Maintenance Guide.
Page 170 5. Image Quality Problem: Lines/Streaks • It is recommended to feed the paper by separating the jobs into the following number of sheets (because the interval of automatic polishing execution is close to this number of sheets). • Frequently: 1 job = up to 2000 sheets •...
Page 171 Streaks 170°C or less Go to the next step. 171°C or higher Go to the troubleshooting "Unacceptable Fusibility / The Problem Persisting Even after Increasing the Fusing Heat Roller Temperature to 185°C". Increase the temperature setting for the fusing heat roller by 15°C. Print on 20 or more sheets of A4 paper, short edge feed (SEF), to check if the image is within the acceptable range.
Page 172 5. Image Quality Problem: Lines/Streaks Unacceptable Fusibility / The Problem Persisting Even after Increasing the Fusing Heat Roller Temperature to 185°C Check if it is permissible to reduce throughput. Go to the next step. In [Detailed settings] for custom paper, select 1241-01: [Fusing Nip Width Adjustment: Other than Envelope], and then restore the value to the fusing nip width 1.
Page 173 Streaks Select 1232 [Fusing Temperature], and then check the fusing heat roller temperature settings for every mode except for the mode for the special color (clear). • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp • 1232-07: Fusing Temperature: FCS: Heat Roller Temp: White •...
Page 174 5. Image Quality Problem: Lines/Streaks • The toner does not come off even if the image is wiped with an optical cloth. Go to the next step. Except for the mode for the special toner (clear), increase the fusing heat roller temperature by 5°C, then retry from Step 7.
Page 175 Streaks 196°C or higher In [Detailed settings] for custom paper, select 1243: [Fusing Belt Smoothing], select [Interval] 02: [For Belt Scratches], and then increase by one step the interval for polishing the fusing belt by the fusing belt smoothing roller. For example, if the present value is "Frequently", change it to "More Frequently".
Page 176: Horizontal (Cross-Track) White Streaks Across The Paper
This procedure is complete. • The throughput is reduced if you decrease the print speed. As a reference, the throughput for printing on A4 LEF paper is as follows. High Middle Pro C7500/ Pro C7500H 85ppm 69ppm 40ppm When using Productivity Upgrade...
Page 177 Streaks CEZ604 Cause: This is caused by an abnormal electrical discharge in a low temperature and low humidity environment due to the stains on the charge roller. Occurrence conditions: • When printing single-color dot image • When printing is performed in a low-temperature environment (the problem is resolved as the temperature inside the machine increases) •...
Page 178: White Stain At The Trailing Edge Of The Image Using The Special Toner (White)
5. Image Quality Problem: Lines/Streaks Replace the charge unit. For details, see "13 Charger Unit (Black)/27 Charger Unit(Cyan)/41 Charger Unit (Magenta)/55 Charger Unit (Yellow)/69 Charger Unit (Special)", Regular Maintenance Guide. • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
Page 179: White Streaks Parallel To The Paper Feed Direction
Streaks 3. Magenta 4. Cyan 5. Appearing whitish 6. Insufficient fusing 7. Transparent sheet Occurrence conditions: • When printing an image overlaying the white toner with the cyan, magenta, yellow, or black toner • When using transparent paper • When the cyan, magenta, yellow, or black toner overlaying with the white toner is thick •...
Page 180 5. Image Quality Problem: Lines/Streaks M0EBIC0083 Cause: A trace of abrasive streaks produced by the fusing belt smoothing operation remains on the fusing belt. This is prone to occur when using paper with a thickness of Paper Weight 7, 8 or 9. Solution: If the paper is not registered as custom paper, register the brand of the paper.
Page 181: Vertical Glossy (In-Track) Streaks (Due To The Toner Wax On The Image)
Streaks Print 20 or more A4 sheets. Has the problem been resolved? Finished! Start over from Step 2. If the problem persists even when the fusing heat roller's temperature is increased the upper limit, contact your service representative. • The upper limit for the fusing heat roller's temperature depends on the print speed •...
Page 182 5. Image Quality Problem: Lines/Streaks Solution: (a) Execute Smooth Fusing Belt In the [Machine: Maintenance] group on the [Operator Adjust.] menu, select 0508: [Manually Smooth Fusing Belt], and then execute 02: [Uneven Gloss (Short Time)]. Print the image. Has the problem been resolved? Go to the next step.
Page 183 Streaks • 1231-17: Print Speed: S: Fuser Setting HQ: Metallic Select 1232: [Fusing Temperature] and decrease the fusing heat roller's temperature by 20°C. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp • 1232-06: Fusing Temperature: FCS: Heat Roller Temp: Clear/Special •...
Page 184 5. Image Quality Problem: Lines/Streaks Select 1232 [Correct Temp: Initial Feed] and set the temperature adjustment at the time of initial paper feeding to "5°C". • 1232-03: Fusing Temperature: BW/FC/FCS: Correct Temp: Pre-Feed • 1232-14: Fusing Temperature: FCS: Correct Temp: Pre-Feed: Clear/Special •...
Page 185: Image Quality Problem: Spots
6. Image Quality Problem: Spots Spots Black Spots (Granular Toner Clotting) Paper is stained with toner spots of 0.5–1 mm (0.02–0.04 inches) in diameter. CEZ538 Cause: This is caused by toner slipping through the cleaning web and adhering to the paper. Occurrence conditions: •...
Page 186 6. Image Quality Problem: Spots In [Detailed settings] for the custom paper you are using, select 1232: [Fusing Temperature], and then increase the value in the following corresponding settings by 5°C. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp • 1232-06: Fusing Temperature: FCS: Heat Roller Temp: Clear/Special •...
Page 187 Spots In [Detailed settings] for the custom paper you are using, select 1231: [Print Speed], and then set the value in the following corresponding settings to [Middle]. • 1231-01: Print Speed: BW/FC/FCS: BW/FC/FCS • 1231-02: Print Speed: FCS: Clear/Special • 1231-03: Print Speed: FCS: White •...
Page 188: White Spots, Colored Streaks
6. Image Quality Problem: Spots • 1238-02: Fusing Cleaning: FCS/S: Cleaning Interval: Clear/Special • 1238-03: Fusing Cleaning: FCS/S: Cleaning Interval: White • 1238-04: Fusing Cleaning: FCS/S: Cleaning Interval: Metallic Print the image. Has the problem been resolved? Print 20 sheets of the image, then another 10. Finished! Repeat Steps 10 and 11.
Page 189: Medaka (White Spots)
Spots Occurrence conditions: • If the machine or toner has been left idle at high temperature (due to long vacation, etc.) • If the machine has received strong impact • When moving the machine • When printing solid-fill images • Due to the strong impact of the machine, the toner adhering to the PCDU drops into the developer and becomes coagulated.
Page 190 6. Image Quality Problem: Spots 189 mm (7.5 in.) CEZ548 Cause: The photoconductor unit is stained. Solution: To identify the affected color, print three full-page, solid-fill A3 or DLT sheets for each of cyan, magenta, black, and green. • Because it is difficult to identify white spots on yellow, green is used instead of yellow. Detach the photoconductor unit of the affected color and check the drum surface.
Page 191: White Spots/Toner Blasting
Spots Replace the PCU cleaning unit. "4 PCU Cleaning Unit (Black)/18 PCU Cleaning Unit (Cyan)/32 PCU Cleaning Unit (Magenta)/46 PCU Cleaning Unit (Yellow)/60 PCU Cleaning Unit (Special)", Regular Maintenance Guide White Spots/Toner Blasting White Spots White spots of 0.2 - 0.3 mm in diameter appear. M0EBIC0102 Toner Blasting Toner is scattered around a solid-fill print.
Page 192 6. Image Quality Problem: Spots Solution: If the paper is not registered as custom paper, register the brand of the paper. If the problem occurs only on Side 2 of the paper, go to Step 5. If not, go to the next step. In [Detailed settings] for custom paper, adjust the paper transfer output in 1214: [Paper Transfer Output].
Page 193: Blister-Like White Spots
Spots As with Side 1, increase the value by two steps in the case of toner blasting or decrease the value by 2 steps in the case of white spots. Print the image. Has the problem been resolved? Finished! Start over from Step 6. •...
Page 194 6. Image Quality Problem: Spots Solution: On the printer driver dialog box of Fiery Command WorkStation, set the fusibility throughput setting to Fuser Setting HQ mode. • When using paper with a thickness of Paper Weight 6 to 9, throughput may be reduced. Print 10 or more A3 sheets.
Page 195 Spots When decreasing the print speed to [Middle] Go to "(a) If [Print Speed] is set to [Middle]". When decreasing the print speed to [Low] Go to "(b) If [Print Speed] is set to [Low Speed]". (a) Changing the fusing temperature (If [Print Speed] is set to [Middle]) Select 1232: [Fusing Temperature], and then decrease the value in the following corresponding settings by 5°C.
Page 196 6. Image Quality Problem: Spots • The toner does not come off even if it is rubbed by the cloth for cleaning the contact glass. Finished! Change the print speed to "Low". Go to "(b) Changing the fusing temperature (If [Print Speed] is set to [Low])".
Page 197 Spots • 1232-34: Fusing Temperature: S: Correct Temp: Pre-Feed: Clear/Special • 1232-35: Fusing Temperature: S: Correct Temp: Pre-Feed: White • 1232-36: Fusing Temperature: S: Correct Temp: Pre-Feed: Metallic High Quality • 1232-48: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Correct Temp: Pre-Feed •...
Page 198: White Bird Tracks
6. Image Quality Problem: Spots • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
Page 199 Spots If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for the custom paper you are using, select 1239: [Margin], and then move the image closer to the trailing edge in the following setting according to the measured length 1239-01: Margin: BW/FC/FCS/S: Leading Edge 1239-03: Margin: FCS: Leading Edge: Clear/Special...
Page 200 6. Image Quality Problem: Spots Solution: Clean the pressure roller separation pawl. For details, see page 221 "Cleaning the Pressure Separation Pawls".
Page 201: Fanning The Paper/Cleaning
7. Fanning the Paper/Cleaning Fanning the Paper Fan the stack of paper to load. D0CMIC1421 Holding its shorter ends, flex the stack back and forth to create space between the sheets. Repeat this several times. D0CMIC1422 D0CMIC1423...
Page 202 7. Fanning the Paper/Cleaning Make sure there is space between the sheets. D0CMIC1424 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. D0CMIC1425 • If you cannot fan the paper well by the above method, use the following method. •...
Page 203: Clean The Paper Edges
Clean the Paper Edges Clean the Paper Edges Wipe off the dust with your finger, and wipe off the stain area with a dry cloth. M0EBIC0130 M0EBIC0131 1. Stained Paper Edges 2. Waste Cloth...
Page 204 7. Fanning the Paper/Cleaning...
Page 205: Troubles Related To Paper Feeding And Delivery (Main)
8. Troubles Related to Paper Feeding and Delivery (Main) Cleaning the Parts of the Machine Cleaning the Machine's Trays 1 and 2 • For details on removing Trays 1 and 2 and cleaning the paper guide plates, see "151 Tray 1: Paper Path"...
Page 206 8. Troubles Related to Paper Feeding and Delivery (Main) Remove the 2 screws. Push the tray in while lifting its front part slightly, disengage the lock, and then detach the tray. M0EBIC0185 Clean the pick-up roller [A] and guide plate [B]. M0EBIC0134 Lifting Tray 2, remove it, and then clean the pick-up roller [A] and guide plate [B].
Page 207: Cleaning The Paper Feeding Section Of The Bypass Tray
Cleaning the Parts of the Machine Lowering the A1 lever, open the vertical transport paper feed guide plates. M0EBIC0186 Clean each guide plate. M0EBIC0137 Cleaning the Paper Feeding Section of the Bypass Tray • For details on removing the cover, see "228 Bypass Tray" in the Regular Maintenance Guide. Clean the side fences and front guide.
Page 208: Cleaning Around The Photoconductor
8. Troubles Related to Paper Feeding and Delivery (Main) Remove the paper feed unit's pick-up roller cover [A] and switchback roller cover [B]. M0EBIC0138 Clean the paper feed rollers. M0EBIC0139 Clean the guide board. M0EBIC0188 Cleaning around the Photoconductor • For details on cleaning, see "73 Development Unit (Black): Case/74 Development Unit (Cyan, Magenta, Yellow): Case/75 Development Unit (Special): Case"...
Page 209 Cleaning the Parts of the Machine (Black): Cooling Sheet/77 Development Unit (Cyan, Magenta, Yellow): Cooling Sheet/ Development Unit (Special): Cooling Sheet" in the Regular Maintenance Guide. Pull out the PCDU until it stops. Wipe the cooling sheet [A] with a dry cloth or a cloth dampened with water and wrung well.
Page 210: Clean The Transfer Entrance Guide Plate
8. Troubles Related to Paper Feeding and Delivery (Main) Clean the toner adhering around the development unit with a dry cloth. Clean the Transfer Entrance Guide Plate Wipe the toner from the film sheet and metal plate of the transfer entrance guide plate. •...
Page 211: Cleaning Contact Image Sensor Back Plate
Cleaning the Parts of the Machine Insert the cleaning brush until it stops in the hole on the inner cover, and then pull the brush toward you. Repeat this action three times. M0EBIM0327 Cleaning Contact Image Sensor Back Plate • For details on cleaning, see "160 Right Drawer: CIS" in the Regular Maintenance Guide. Push the upper part of the inner cover to the left, and pull the cover toward you to remove M0EBIM0328 Pull Contact Image Sensor Back Plate out of the machine.
Page 212: Cleaning The Machine's Transfer Unit
8. Troubles Related to Paper Feeding and Delivery (Main) Using the optical cleaning cloth, wipe the paper dust off Contact Image Sensor Back Plate. M0EBIM0330 Cleaning the Machine's Transfer Unit • For details on cleaning, see "158 Right Drawer: Paper Dust Case", "120 Paper Transfer Unit: Paper Path"...
Page 213 Cleaning the Parts of the Machine Push and turn the lever on the paper dust collector clockwise, and remove it from the machine. M0EBIM0324 Remove paper dust from the paper dust collector. M0EBIC0140 Aligning the pins on the right and left sides of the paper dust collector with the holes on the drawer unit, attach the case back in its original position, and turn the lever counterclockwise to secure it.
Page 214 8. Troubles Related to Paper Feeding and Delivery (Main) Pressing a dry cloth against the driven transfer timing roller [A], wipe the surface of the roller while turning the knob [B]. M0EBIC0183 Lifting the paper transfer unit, remove it. Clean the drive transfer timing roller [A] with a dry cloth. M0EBIC0144 Open the transparent guide plate [A], and then clean the guide plate.
Page 215: Cleaning The Rollers In The Paper Exit
Cleaning the Parts of the Machine Open the entrance guide plate [A], and then clean the guide plate. M0EBIC0147 Lowering the lever, open the vertical transport paper feed guide plates. M0EBIC0148 Clean the guide plate. M0EBIC0149 Cleaning the Rollers in the Paper Exit •...
Page 216 8. Troubles Related to Paper Feeding and Delivery (Main) Cleaning the registration entrance transport roller Wipe the registration entrance transport roller (drive) [A] and registration entrance transport roller (driven) [B] with a cloth moistened with alcohol. Pressing the cloth against the roller, wipe the surface of the roller while turning the knob [C].
Page 217 Cleaning the Parts of the Machine M0EBIC0158 Cleaning the Output roller Wipe the output roller with a cloth moistened with alcohol. Wipe the roller [A] and [B] with a cloth moistened with alcohol. Pressing the cloth against the roller, wipe the surface of the roller while turning the gear [C]. M0EBIC0164 Cleaning the switchback roller Pull down and open the cover D5.
Page 218: Cleaning The Double-Feed Sensor
8. Troubles Related to Paper Feeding and Delivery (Main) Pressing the cloth against the roller [A], wipe the surface of the roller while turning the gear [B]. M0EBIC0159 Wipe the switchback roller [A] with a cloth moistened with alcohol. M0EBIC0161 Cleaning the Double-Feed Sensor •...
Page 219: Cleaning The Turned-Over Delivery Unit
Cleaning the Parts of the Machine M0EBIC0182 Clean the double-feed sensor [A] with a blower brush. M0EBIC0181 Cleaning the Turned-Over Delivery Unit • For details on cleaning, see "155 Right Drawer: Paper Path 1" in the Regular Maintenance Guide. Release and pull down duplex transport path plate (Z3). M0EBIC0150...
Page 220: Cleaning The Cooling Belt Of The Turned-Over Delivery Cooling Unit
8. Troubles Related to Paper Feeding and Delivery (Main) Clean the guide plate. M0EBIC0189 • Duplex guide plate rib position 25 68 113 146 M0EBIC0126 [A] Rib position [B] Distance from the center in the paper feed direction [C] Reproduced sample Cleaning the Cooling Belt of the Turned-Over Delivery Cooling Unit •...
Page 221 Cleaning the Parts of the Machine M0EBIC0151 • Since wax adheres to the machine's cooling belt, it is recommended to clean it with alcohol every 100K sheets of printing. • If toner stains or paper dust are found on the surrounding guide plates, clean the guide plates too. Remove the Fuser Unit.
Page 222: Cleaning The Switchback Guide Plate
8. Troubles Related to Paper Feeding and Delivery (Main) Repeat steps 2 and 3 16 times. • By repeating the 30° rotation and wiping 16 times, you can clean the entire cooling belt. Cleaning the Switchback Guide Plate • For details on cleaning, see "159 Left Drawer: Paper Path 1" in the Regular Maintenance Guide. Open the cover.
Page 223: Cleaning The Pressure Separation Pawls
Cleaning the Parts of the Machine Cleaning the Pressure Separation Pawls • For details on removing Fuser Unit and cleaning, see "130 Fuser Unit: Paper Path" in the Regular Maintenance Guide. Wipe off the pressure Separation Pawls [A] with a dry cloth. M0EBIC0155...
Page 224: Double Feeding
8. Troubles Related to Paper Feeding and Delivery (Main) Double Feeding J099 Appears Cause: • The paper size is not specified correctly. • The paper tray's side fences or end fence are not set correctly. Solution: • Specify the paper size correctly. •...
Page 225 Double Feeding Cleaning the Double-Feed sensor For details, see page 216 "Cleaning the Double-Feed Sensor". If the problem still persists, contact your service representative.
Page 226: Paper Misfeeding
8. Troubles Related to Paper Feeding and Delivery (Main) Paper Misfeeding Paper Misfeeding (Main Tray) Cause: Poor quality paper is being used, causing the surface of the paper roller to slip, resulting in a paper jam. Solution: To prevent such a problem, each paper tray is attached with a device for adjusting the separation pressure of the reverse roller.
Page 227 Paper Misfeeding Main Tray 1 M0EBIC0052 Main Tray 2 M0EBIC0053 • Increasing the separation pressure can resolve paper jams, but doing so is likely to cause double- feeding.
Page 228: Streaks, Scratches, Disturbed Image, Crease
8. Troubles Related to Paper Feeding and Delivery (Main) Streaks, Scratches, Disturbed Image, Crease Streaks or Scratches (How to Identify the Cause) If streaks or scratches occur on an image, identify the cause using the following flow chart. Print the image on the front, back, and both sides using the paper on which the streaks or scratches occur.
Page 229: Image Deformation, Scratches, Streaks, Paper Creases Or Bent Corners
Streaks, Scratches, Disturbed Image, Crease Image Deformation, Scratches, Streaks, Paper Creases or Bent Corners Cause: • The paper exit roller is stained. • The line speed of the exit motor or the paper feed speed at the switchback entrance/exit is too fast or too slow.
Page 230 8. Troubles Related to Paper Feeding and Delivery (Main) In [Detailed settings] for custom paper, select 1341: [Motor Speed] and then increase the value for the applicable setting by 0.1%. If this problem occurs with single-sided printing 1341-09: Motor Speed: Speed Adjustment: Paper Output Roller If this problem occurs with duplex printing 1341-10: Motor Speed: Speed Adjustment:...
Page 231 Streaks, Scratches, Disturbed Image, Crease Start over from Step 2. If the problem persists even after decreasing the value to the lower limit, there is a possibility of another cause. Since there is no other solution, restore the previous settings. (b) Scratches or Streaks on the Back of the Paper / Chattering Noise If the paper is not registered as custom paper, register the brand of the paper.
Page 232: Paper Jams, Sheets Becoming Bent Or Damaged At The Corners Occurring With Turned-Over Paper Delivery Of Synthetic Paper And Plastic Sheets
8. Troubles Related to Paper Feeding and Delivery (Main) Change the paper loading method, and then check if the curl is straightened. Finished! There is a possibility of another cause. Since there is no other solution, restore the previous setting. Paper Jams, Sheets Becoming Bent or Damaged at the Corners Occurring with Turned-Over Paper Delivery of Synthetic Paper and Plastic Sheets Paper jams (JAM085, JAM086) and problems such as sheets becoming bent or damaged at the...
Page 233: Creases On Thin Coated Paper
Streaks, Scratches, Disturbed Image, Crease Creases on Thin Coated Paper M0EBIC0122 [A] Skew creases (skew paper bending or creases) [B] Branching creases (alternating skew creases in a vertical direction) Cause: The difference in speed between the fusing roller and the pipe cooling unit's cooling roller causes the paper to sag, resulting in paper bending and creases perpendicular to the paper feed direction.
Page 234 8. Troubles Related to Paper Feeding and Delivery (Main) [A] Crease (Paper bent) [B] Worm track (No creases but white ghosting on solid-fill parts) Cause: When solid-fill images are printed on both sides of thin paper, the paper has difficulty spreading in the main scan direction at the fusing nip on Side 2, resulting in creases or worm tracks.
Page 235 Streaks, Scratches, Disturbed Image, Crease Check to see if the fusibility is within the acceptable range. • The required level of fusibility is as follows. • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. •...
Page 236 8. Troubles Related to Paper Feeding and Delivery (Main) • The toner does not come off even if it is rubbed by the cloth for cleaning the contact glass. Go to the next step. Proceed to Step 7. Check to see if creases and worm marks have disappeared. Finished! Go back to "Troubleshooting Flow A", and repeat the procedure until the problem is resolved or until the fusibility becomes unacceptable.
Page 237: Stains On The Paper Edges
Streaks, Scratches, Disturbed Image, Crease Check to see if the fusibility is within the acceptable range. Go to the next step. No further improvement is likely. Check to see if creases and worm marks have disappeared. Finished! Go back to "Troubleshooting Flow A", and repeat the procedure until the problem is resolved or until the fusibility becomes unacceptable.
Page 238 8. Troubles Related to Paper Feeding and Delivery (Main) Solution: If the Buffer Pass Unit is attached, go to the next step. If not, go to Step 5. Check to see if the stain is located at an area between 33 mm (1.3 inches) and 14 mm (0.6 inches) from the center of the paper.
Page 239: Mm (0.5 Inches) Wide Roller Marks Appearing On The Leading Edge Of Paper Delivered Face Down
Streaks, Scratches, Disturbed Image, Crease In [Detailed settings] for custom paper, check the decurling level in 1321-01: [Correction Mode]. Decrease the line speed to match the decurling level. If set to "Correction Off" 1321-02: Correct Paper Curl: Speed Adjustment: Decurler: Correction Off If set to "Correction 1321-03: Correct Paper Curl: Speed Adjustment: Decurler:...
Page 240: Toner Stains Like Roller Marks (After Continuous Large Volume Printing On Coated Paper)
8. Troubles Related to Paper Feeding and Delivery (Main) Cause: When paper is continuously fed face-down, the contact/separation roller of the exit switchback roller becomes stained as it repeats contact and separation, and the stain adheres to the paper when the contact/separation roller comes into contact with the paper.
Page 241: Vertical White Streak Roller Marks
Streaks, Scratches, Disturbed Image, Crease Solution: Clean the paper exit roller and relay exit roller. For details, see page 213 "Cleaning the Rollers in the Paper Exit". Vertical White Streak Roller Marks When duplex printing of halftone images is performed, roller marks may appear as vertical white streaks on Side 1.
Page 242 8. Troubles Related to Paper Feeding and Delivery (Main) Solution: If the paper is not registered as custom paper, register the brand of the paper. In [Detailed settings] for custom paper, select 1232: [Fusing Temperature] and increase the temperature setting for the fusing heat roller by 5°C according to the color mode you wish to use.
Page 243: White Spots Or Scratches Due To Paper Dust
Streaks, Scratches, Disturbed Image, Crease In [Detailed settings] for custom paper, select 1321: [Correct Paper Curl], and then specify [Correction Mode]. To correct curls facing up, specify "U Curl Correction Level: Large" or "U Curl Correction Level: Small". To correct curls facing down, specify "П Curl Correction Level: Large" or "П Curl Correction Level: Small".
Page 244: White Streaks Of Stains Appearing When Feeding Dark-Color Paper After White Coated Paper
8. Troubles Related to Paper Feeding and Delivery (Main) White Streaks of Stains Appearing when Feeding Dark-Color Paper after White Coated Paper When feeding black or other dark-color paper after white paper, white streaks may appear. M0EBIC0114 Cause: The coating material on the coated paper may stick to the tip of the switchback guide plate’s ribs on the machine's left drawer unit, and this may be transferred to dark-color paper, causing dirty streaks.
Page 245: Paper Jam
Paper Jam Paper Jam Frequent Paper Misfeeds Depending on the cause of the problem, do one of the following: Cause Solution Coated or another type of unsupported paper is Load paper not supported by the machine's loaded in the machine's tray. paper tray (Trays 1-2) in the wide LCT or another paper tray supporting the paper.
Page 246: Useful Functions For Determining The Cause Of A Paper Jam (Without Purging)
8. Troubles Related to Paper Feeding and Delivery (Main) Useful Functions for Determining the Cause of a Paper Jam (without Purging) If a paper jam occurs, the paper remaining in the machine is delivered to the purge unit and ejected forcibly.
Page 247 Paper Jam Solution: (a) When using papers other than envelopes Change the orientation of the paper in the tray. Print the image. Has the problem been resolved? Finished! Go to the next step. Turn the paper in the paper tray upside down. Print the image.
Page 248: J033 / J034 / J083 (Paper Jam At The Fusing Unit During Solid-Fill Image Printing)
8. Troubles Related to Paper Feeding and Delivery (Main) Print the image. Has the problem been resolved? Finished! Contact your service representative. J033 / J034 / J083 (Paper Jam at the Fusing Unit during Solid-Fill Image Printing) Cause: If a solid fill image is printed, the paper may stick to the fusing belt when the paper is separated at the fusing nip exit.
Page 249 Paper Jam Occurrence conditions: • Solid-fill and other images with a large amount of toner adhesion on the paper • High temperature environments (due to weakening of paper stiffness) Solution: If the paper is not registered as custom paper, register the brand of the paper. Make sure there is room to reduce the line speed and that reduced throughput will not cause any problems.
Page 250 8. Troubles Related to Paper Feeding and Delivery (Main) In [Detailed settings] for custom paper, select 1232: [Fusing Temperature] and decrease the temperature setting for the fusing heat roller by 5°C according to the color mode you wish to use. •...
Page 251 Paper Jam In [Detailed settings] for custom paper, select 1232: [Fusing Temperature] and decrease the temperature setting for the fusing heat roller by 20°C according to the color mode you wish to use. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp •...
Page 252 8. Troubles Related to Paper Feeding and Delivery (Main) • 1232-77: Fusing Temperature: S: Fuser Setting HQ: Correct Temp: Initial Feed: Metallic Select 1232: [Correct Temp: Initial Feed], and then set the temperature adjustment before paper feeding to "5°C" according to the color mode you wish to use. •...
Page 253 Paper Jam Decrease the fusing heating roller temperature. In [Detailed settings] for custom paper, select 1232: [Fusing Temperature] and decrease the temperature setting for the fusing heat roller by 5°C according to the color mode you wish to use. • 1232-01: Fusing Temperature: BW/FC/FCS: Heat Roller Temp •...
Page 254: Paper Jams Occur With Crumpling Of The Leading Edge When Thin Paper Is Used
8. Troubles Related to Paper Feeding and Delivery (Main) • Select "Clear/Special" when using Neon Yellow, Neon Pink, or Invisible Red. Select "Metallic" when using Gold or Silver. • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
Page 255 Paper Jam • When duplex printing too much toner is applied to the trailing edge of the paper on the front (Side 1) for a solid-fill image, etc. • When duplex printing is performed, the trailing edge of the paper on the front (Side 1) has some areas with insufficient margins (larger magnification).
Page 256: J048 Appears
8. Troubles Related to Paper Feeding and Delivery (Main) In [Detailed settings] for custom paper, select 1239: [Margin] and increase the margin width by + 0.5 mm. 1104-02: Machine: Image Position: Image Position Gap: Image Position: Side 1: With Feed 1104-04: Machine: Image Position: Image Position Gap: Image Position: Side 2: With Feed Print the image and check if the paper jam has been resolved.
Page 257 Paper Jam Cause Solution Registration marks and printed image overlap. In [Detailed settings] for custom paper, select 1239: [Margin], and then adjust the margins at the leading and trailing edges in "01", "02", "03", "04", "05", "07", "08", and "09". •...
Page 258 8. Troubles Related to Paper Feeding and Delivery (Main) Cause Solution Registration mark concealed by paper becoming • Straighten curled paper before loading it in bent at a corner. the paper tray. • Load paper in the paper tray with its other side up.
Page 259: J080 Appears
Paper Jam M0EBIC0116 • The lines perpendicular to the mark [A] may be printed. The lines parallel to it cannot be printed. • [B]: Printable • [C]: Not printable • [D]: Space of 2 mm or more from the line •...
Page 260: Paper Bending Or Paper Jams (J034 / J035 / J036 / J084 / J085 / J086)
8. Troubles Related to Paper Feeding and Delivery (Main) Paper Bending or Paper Jams (J034 / J035 / J036 / J084 / J085 / J086) Cause: There is a lever on the left drawer unit of the main unit to switch when feeding small paper of length 179 mm (7.1 inches) or less.
Page 261 Paper Jam M0EBIC0184 If small paper is fed with the setting for large paper (with the lever raised), paper fails to be fed, resulting in a paper jam (J034). Solution: Switch the lever correctly according to the paper size.
Page 262: Skew
8. Troubles Related to Paper Feeding and Delivery (Main) Skew J097 (Excessive Skew) M0EBIC0077 Cause: • The side fences of the paper feed tray are not positioned correctly. • The paper type is not specified correctly. • Colored paper or envelopes are being fed. •...
Page 263 Skew Proceed to Step 7. Clean the CIS sensor surface (dust-proof glass) and the CIS light-shielding material (black felt). For details, see page 208 "Cleaning the CIS Glass" and page 209 "Cleaning Contact Image Sensor Back Plate". Print and check if J097 has been resolved. Finished! Go to the next step.
Page 264: J098 (Shifting)
8. Troubles Related to Paper Feeding and Delivery (Main) J098 (Shifting) M0EBIC0078 Cause: • The side fences of the paper feed tray are not positioned correctly. • The paper size, orientation, or paper type is not specified correctly. • Paper other than white (colored paper, slightly creamy white, etc.), envelopes, or transparencies are being fed.
Page 265 Skew Clean the CIS sensor surface (dust-proof glass) and the CIS light-shielding material (black felt). For details, see page 208 "Cleaning the CIS Glass" and page 209 "Cleaning Contact Image Sensor Back Plate". Print and check if J098 has been resolved. Finished! Go to the next step.
Page 266 8. Troubles Related to Paper Feeding and Delivery (Main)
Page 267: Related To Paper Feeding And Delivery (Main/Buffer Pass Unit)
9. Related to Paper Feeding and Delivery (Main/Buffer Pass Unit) Roller Marks Appearing When Dark-Color Paper Is Fed after White Paper Roller Marks Appearing When Dark-Color Paper is Fed after White Paper When black or other dark-color paper is fed after white paper, roller marks may appear. Roller marks appear at the following positions.
Page 268 9. Related to Paper Feeding and Delivery (Main/Buffer Pass Unit) • Clean the approximately 14 mm (0.6 inches) wide roller circled in red at an area 33 mm (1.3 inches) from the center of the paper. • Clean the approximately 28 mm (1.1 inches) wide roller circled in blue at an area 26 mm (1.0 inches) from the center of the paper.
Page 269: Vacuum Feed Lcit Rt5150
10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) Vacuum Feed LCIT RT5150 Common Troubleshooting If trouble occurs, first check the following. 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.
Page 270 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) Solution: Perform the common troubleshooting procedure. For details, see page 267 "Common Troubleshooting". Check if the double feeding is resolved. Finished! Go to the next step. If using paper with a thickness of Paper Weight 5 or below, extend the paper retainer. M0EDIC1386 If using paper with a thickness of Paper Weight 6 or above, go to the next step.
Page 271 Vacuum Feed LCIT RT5150 To feed paper from Extension output banner sheet tray, attach the side fences and end fence for extra-long paper. For details, see page 279 "Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper)". Otherwise, go to the next step.
Page 272: Paper Misfeeds (J430, 431, 445, 446, 460, 461)
10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) There is no other solution, so do not feed paper. • If the double feeding still persists after performing the above procedure, do as follows. • If paper misfeeds persist even after performing the abovementioned procedure, enable 307: [Auto Continue Paper Feeding] in [Operator Adjust.] in order to resolve the problem of reduced operation rate due to paper jam detection.
Page 273 Vacuum Feed LCIT RT5150 When using paper with a thickness of Paper Weight 6 or above, move the paper retainer away. M0EDIC1375 If using paper with a thickness of Paper Weight 5 or below, extend the paper retainer. M0EDIC1386 For details, see page 283 "Using the Paper Retainer Correctly". With a paper weight of 350.1 gsm to 360 gsm, check if it is registered to the Master Library.
Page 274 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) For details, see page 279 "Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper)". To feed paper from Extension output banner sheet tray, attach the side fences and end fence for extra-long paper.
Page 275: Excessive Skew/Shifting (J097, J098)
Vacuum Feed LCIT RT5150 Remove a sheet of paper, measure its thickness with a micrometer or vernier caliper, and then enter the measured value in 1303-05: [Tray Elevation Assist] [Paper Thickness] in [Detailed settings] for custom paper. • Measure the thickest part of the envelope. Check if the paper misfeed is resolved.
Page 276 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) Solution: Perform the common troubleshooting procedure. For details, see page 267 "Common Troubleshooting". Check if the skew is resolved. Finished! Go to the next step. If using paper with a thickness of Paper Weight 5 or below, extend the paper retainer. M0EDIC1386 If using paper with a thickness of Paper Weight 6 or above, go to the next step.
Page 277 Vacuum Feed LCIT RT5150 Check if the skew is resolved. Finished! Go to the next step. To feed paper from Extension output banner sheet tray, attach the side fences and end fence for extra-long paper. For paper with a length of 487.8 mm (19.2 inches) or above, change the maximum stack height from 50 mm to 40 mm (2.0 inches to 1.6 inches).
Page 278: Attaching The Side Fences And End Fence Correctly
10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) There is no other solution, so do not feed paper. Attaching the Side Fences and End Fence Correctly The side fences and end fence are attached correctly Check if the side fences and end fence are attached correctly. M0EDIC1365 The side fences are not attached correctly The side fences are positioned too widely.
Page 279 Vacuum Feed LCIT RT5150 M0EDIC1367 Solution: Lifting the paper with it arched horizontal to the paper feed direction, measure with a scale the gap between the paper and side fences. D0EDIC1368 Position the side fences so that the gap between them and the paper is 1 mm to 2 mm. •...
Page 280 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) M0EDIC1369 The end fences are positioned too narrowly. The end fence is positioned too narrowly so that the paper is arched, causing the paper's resistance to be lifted at the front edge which results in paper misfeeds. M0EDIC1370 Solution: Lifting the paper with it arched vertical to the paper feed direction up to the bottom part of the end...
Page 281: Attaching The Small Tab End Fence To The Wide Large Capacity Tray
Vacuum Feed LCIT RT5150 • "Loading Paper into the Paper Tray", Introduction and Basic Operations Attaching the Small Tab End Fence to the Wide Large Capacity Tray "Loading Paper into the Paper Tray", Introduction and Basic Operations Attaching the Tab Fence in the Wide Large Capacity Tray "Loading Paper into the Paper Tray", Introduction and Basic Operations Attaching the Side Fences, Auxiliary Side Fence, and End Fence (for Long Paper)
Page 282: Measuring The Curl / Decurling
10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) Paper Fences to use 1. Long end fence (1) 487.8 mm – 1260.0 mm (19.2-49.6 inches) (With the Extension output banner sheet tray attached) M0EDIC1380 • Use the auxiliary side fence and side fences as deemed appropriate. •...
Page 283: Cleaning The Vacuum Feed Lcit Rt5150
Vacuum Feed LCIT RT5150 Acceptable curl A curl within ±10 mm throughout the sheet is acceptable. Decurling Place the sheet on a flat surface with the curl facing downward. Holding an edge of the paper, curl it in the opposite direction to decurl it. M0EDIC1373 •...
Page 284 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) M0EBIC0160 [A] Paper Feed Belt Cleaning the Paper Path • For details on cleaning, see "238 2-Tray LCT: Paper Path 1" in the Regular Maintenance Guide. Open the guide plate [A], and then clean the guide plate. M0EBIC0166...
Page 285: Cleaning The Wide Lct Connection Unit
Vacuum Feed LCIT RT5150 Cleaning the Wide LCT Connection Unit Open the front cover of the relay unit, open the guide plate [A], and then clean the guide plate. M0EBIC0167 Close the guide plate, and then close the front cover of the relay unit. Pull out the horizontal duplex paper transfer unit, open the guide plate [A], and then clean the guide plate.
Page 286 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150) For Paper Weight 6 or above Move the paper retainer Away M0EDIC1375 M0EDIC1376 M0EDIC1377 For Paper Weight 5 or below Press the lever and extend the paper retainer.
Page 287: Paper Jam Occurs In The Paper Transfer Unit
Vacuum Feed LCIT RT5150 M0EDIC1378 M0EDIC1386 Paper Jam Occurs in the Paper Transfer Unit To feed paper with a paper weight of 350.1 gsm or above and length of 205 mm or below (when using the top tray) or 248 mm (9.8 inches) or below (when using the bottom tray), load the paper in the short edge feed (SEF) orientation.
Page 288 10. Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150)
Page 289: Post-Processing Option Troubleshooting
11. Post-Processing Option Troubleshooting Buffer Pass Unit Roller Marks Appearing When Feeding Dark-Color Paper after Feeding White Paper For details, see page 265 "Roller Marks Appearing When Dark-Color Paper Is Fed after White Paper". Glossy banding approximately 14 mm (0.6 inches) wide occurs at an area 33 mm (1.3 inches) from the center in the paper feed direction.
Page 290 11. Post-Processing Option Troubleshooting • When printing solid-fill images Solution: If the paper is not registered as custom paper, register the brand of the paper. Check to see if there is a margin to reduce the line speed, and if reducing throughput causes any problems.
Page 291 Buffer Pass Unit • 1232-08: Fusing Temperature: FCS: Heat Roller Temp: Metallic • 1232-26: Fusing Temperature: S: Heat Roller Temp: Clear/Special • 1232-27: Fusing Temperature: S: Heat Roller Temp: White • 1232-28: Fusing Temperature: S: Heat Roller Temp: Metallic • 1232-46: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Heat Roller Temp •...
Page 292 11. Post-Processing Option Troubleshooting • 1232-28: Fusing Temperature: S: Heat Roller Temp: Metallic • 1232-46: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Heat Roller Temp • 1232-51: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-52: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: White •...
Page 293 Buffer Pass Unit • 1232-36: Fusing Temperature: S: Correct Temp: Pre-Feed: Metallic • 1232-48: Fusing Temperature: BW/FC/FCS: Fuser Setting HQ: Correct Temp: Pre-Feed • 1232-59: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Pre-Feed: Clear/ Special • 1232-60: Fusing Temperature: FCS: Fuser Setting HQ: Correct Temp: Pre-Feed: White •...
Page 294: The Buffer Pass Unit's Fan Is Noisy
11. Post-Processing Option Troubleshooting • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. • The toner does not come off even if the image is wiped with an optical cloth. Finished! No further improvement is likely.
Page 295 Buffer Pass Unit Wipe the guide plates (especially the ridgelines of the bends and the cut-and-bent portions) with a cloth moistened with alcohol. CNT018...
Page 296: Finisher/Booklet Finisher
11. Post-Processing Option Troubleshooting Finisher/Booklet Finisher The Leading Edge of Paper Rolls Up (JAM607 / JAM609) Cause: A3 or larger paper with a thickness of Paper Weight 1 (cross-grain direction) or Paper Weight 2 (grain direction) are delivered with a face-up curl (approximately 15 mm (0.6 inches)), resulting in the leading edge of the paper riding up and rolling upward.
Page 297 Finisher/Booklet Finisher The leading edge of the paper rides up and curls downward M0EDIC1359 The sheets that are delivered thereafter collide with the rolled paper, blocking the paper exit due to a stacking error, and resulting in a paper jam (JAM607 / JAM609). Solution: For paper with a thickness of Paper Weight 0, attach Output banner sheet tray.
Page 298: Not Stacked Properly (Carbonless Paper Of Paper Weight 0/1)
11. Post-Processing Option Troubleshooting Not Stacked Properly (Carbonless Paper of Paper Weight 0/1) Cause: The Z-fold support tray was attached to lower the angle against the exit tray and reduce the transport resistance, but as a result, the jogger could not reach the paper surface to perform alignment in the direction of the paper width.
Page 299: Envelopes With Triangular Flaps Are Not Stacked Properly
Finisher/Booklet Finisher Due to the Z-fold support tray, the contact position of the leading edge of the paper and exit tray becomes farther, and the timing for the trailing edge of the paper to drop is delayed. If a side of the jogger comes into contact with the delivered paper, the paper goes out of alignment in the direction of the paper width, and the alignment accuracy is further worsened.
Page 300 11. Post-Processing Option Troubleshooting M0EDIC1385 [A]: End fence 3. The flap is thinner than other parts of the envelope, so the height of the tray is prone to be higher than the paper exit roller as more envelopes are stacked. The angle of paper delivery becomes steep, resulting in increased resistance, and failure to deliver the envelope.
Page 301: Trailing Edge Of Stapled Sheets Close To The Paper Exit
Finisher/Booklet Finisher Trailing Edge of Stapled Sheets Close to the Paper Exit Cause: If the stapled sheets are curled strongly or become limp after delivery, the trailing edge of the sheets may be too close to the paper exit when the paper is stacked. Trailing edge too near exit Paper exit...
Page 302: Stapled Sheets Are Scratched Or Jammed
11. Post-Processing Option Troubleshooting • For details about attaching the Z-fold support tray for multi-folding unit, see "Special Notes When Using External Options", Specifications. • If the Z-fold support tray for multi-folding unit is attached, the trailing edge of the ejected sheets will not be too close to the paper exit, so no problem will occur.
Page 303: Stitching Missing, Incorrect Stitching Position, Ear-Fold, Or Misaligned Occurs
Finisher/Booklet Finisher Check if the paper thickness is Paper Weight 2 or less. Go to the next step. The problem is likely to be a problem other than the problem described here. Check if the paper is curled downward. Go to the next step. The problem is likely to be a problem other than the problem described here.
Page 304: Paper Stitched Inside Is Stained
11. Post-Processing Option Troubleshooting Paper Stitched inside is Stained Paper stitched inside is stained. Cause: The folding rollers of the booklet staple unit are stained. Solution: Clean the folding roller of the booklet staple unit. Pull the booklet staple unit. Clean the rollers while turning the Rb11 knob.
Page 305: Punched Holes Are Torn And A Paper Jam Occurs
Finisher/Booklet Finisher M0EDIC1379 Occurrence conditions: • A high-image-density image (such as a solid fill) is on the folds of paper. • Printing in a low temperature and low humidity environment. Solution: • Select magazine as the booklet folding type. • Set the binding margin to 5 mm (0.2 inches) or longer. (Set the binding margin to 5 mm (0.2 inches) at the left on the front and 5 mm (0.2 inches) at the right on the back.) M0EDIC1391 Punched Holes are Torn and a Paper Jam Occurs...
Page 306: Paper Is Stained (Clean Rollers And Paper Guides)
11. Post-Processing Option Troubleshooting Solution: Turn the power off and then back on. Then check if the problem is resolved. If the problem persists, contact the service representative. Paper is Stained (Clean rollers and paper guides) If paper with high image density is fed or the fusing is insufficient, the paper feed roller (driven roller) and paper guides may become stained with toner, causing stains on paper.
Page 307: Interposer
Interposer Interposer Paper Misfeeds or Double-Feeding Occurs Cause: If special paper is fed or fed in a different condition from general paper when generic settings are applied, it may cause paper misfeeds or double-feeding. Occurrence conditions: • Coated paper is set •...
Page 308: Horizontal Streaks Occur When Loading A Full-Page, Solid-Fill Sheet
11. Post-Processing Option Troubleshooting Proceed to Step 5. Go to the next step. Place the curled surface down on a flat surface. Hold the end of the paper and straighten it in the opposite direction to the curl direction so that the paper is rounded. Check if the curl has been reduced.
Page 309 Interposer Solution: Clean the paper guides (in the two areas as shown below). M0EDIC1389 M0EDIC1388 Wipe the paper guides with a soft dry cloth. If the stain cannot be removed with a dry cloth, wipe with a cloth dampened with water and wrung well. Then wipe with a dry cloth until no moisture remains.
Page 310: High Capacity Stacker
11. Post-Processing Option Troubleshooting High Capacity Stacker Sheets Are Curled Cause: With sheets that are curled downward and sheets that are not curled, the leading edge of the sheet being delivered rubs against the top sheet of the stack, there being no air gap between the sheets, and the sheet being delivered is therefore prone to get stuck.
Page 311: Sheets Are Not Aligned
High Capacity Stacker Solution: Straighten out the sheet. Load the sheets the other way up. Print the image. Has the problem been resolved? Finished! Go to the next step. In [Detailed settings] for the custom paper you are using, select 1321: [Correct Paper Curl], and then specify "П...
Page 312 11. Post-Processing Option Troubleshooting Paper exit Paper edge stopper Paddle Stacker shift tray Paper feed direction CEZ579 Paper exit Paper edge stopper Paddle Stacker shift tray Paper feed direction CEZ580 Occurrence conditions: • Paper with thickness of Paper Weight 1 (52.3 to 63 gsm) in low temperature and humidity environments •...
Page 313: The Machine Wrongly Detects That The Tray Is Full
High Capacity Stacker Print the image. Has the problem been resolved? Finished! Go to the next step. In [Detailed settings] for the custom paper you are using, select 1321: [Correct Paper Curl], and then specify "П Curl Correction Level: Large". Print the image.
Page 314 11. Post-Processing Option Troubleshooting Check for side upward curls. Go to the next step. Not possible to resolve the problem Load the sheets the other way up. Print the image. Has the problem been resolved? Finished! Go to the next step. In [Detailed settings] for the custom paper you are using, set 1321: [Correct Paper Curl] to [Off].
Page 315: Paper Edges Are Stained
High Capacity Stacker In [Detailed settings] for the custom paper you are using, set 1321: [Correct Paper Curl] to [П Curl Correction Level: Large]. Print the image. Has the problem been resolved? Finished! Cannot be solved by this flow. Paper Edges Are Stained The leading edge of paper is stained [A] for a width of 10 mm (0.4 inches) at the area 25 mm (0.1 inches) and 94 mm (3.7 inches) away from its center.
Page 316: Other Post- Processing Options
11. Post-Processing Option Troubleshooting Other Post- Processing Options Thin Paper may have Problems such as Curling, Stacking Error, Paper Jam, and Sheets being Bent at the Corners Thin paper and other paper that requires high fusing temperatures are prone to curl due to the large temperature difference between the fused and pressurized sides.
Page 317 Other Post- Processing Options Is the finisher shift tray selected to the output tray? Proceed to Step 6. Go to the next step. Select the finisher shift tray to the output tray. Print the image. Has the problem been resolved? Finished! Go to the next step.
Page 318: Metallic Paper And Synthetic Paper May Have Problems Such As Curling, Stacking Error, Paper Jam, And Sheets Being Bent At The Corners
11. Post-Processing Option Troubleshooting • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. • The toner does not come off even if the image is wiped with an optical cloth. Go to the next step.
Page 319 Other Post- Processing Options Solution: • You need to register the paper as custom paper in advance. Load the sheets the other way up. Print the image. Has the problem been resolved? Finished! Go to the next step. In the printer settings, change the paper to be output in faced up. Print the image.
Page 320 11. Post-Processing Option Troubleshooting • 1232-51: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Clear/Special • 1232-52: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: White • 1232-53: Fusing Temperature: FCS: Fuser Setting HQ: Heat Roller Temp: Metallic •...
Page 321: 12. Problems Related To Throughput
12. Problems Related to Throughput Waiting Time Prior to Printing is Too Long Waiting Time Prior to Printing is Too Long (Other than Envelope) After receiving a print job, the machine usually stops to let the fusing temperature reach an appropriate level for printing.
Page 322: Waiting Time Prior To Printing Is Too Long (Envelope)
12. Problems Related to Throughput In 0403: [Fusing Temperature on Standby] in [Operator Adjust.], decrease the values of the following items by 10°C. 01: Heat Roller: On Standby 02: Heat Roller: On Panel Off 07: Pressure Roller: Before Process In [Detailed settings] for custom paper, increase the value for 1235: [Fusing Temperature Range] by +3.
Page 323: Insufficient Fusibility
Insufficient Fusibility Insufficient Fusibility Insufficient Fusibility Cause: • The paper type, paper thickness, or coating type is not specified correctly in the paper settings. • The type or thickness of the paper being used differs from that of the paper specified in the settings. •...
Page 324 12. Problems Related to Throughput • The printed image does not come off. • The toner does not come off even if it is lightly rubbed by a nail. • The toner does not come off even if the image is wiped with an optical cloth. Finished! If the fusing heat roller temperature has not yet reached 185°C, start over from Step 2.
Page 325 Insufficient Fusibility Go back to 1232: [Fusing Temperature] and increase the fusing heat roller's temperature by 5°C. Print and check if the issue is within the acceptable range. (Print 3 or more A3 sheets.) Finished! Start over from Step 8 until the fusing heat roller temperature reaches 200°C. If the problem persists even after reaching 200°C, there is no other solution.
Page 326: Throughput Reduced When Printing Jobs With Mixed Paper Type Or Thickness, Or After Changing Paper Type Or Thickness
12. Problems Related to Throughput Throughput Reduced When Printing Jobs with Mixed Paper Type or Thickness, or After Changing Paper Type or Thickness When Printing Jobs with Mixed Paper Type or Thickness When jobs with mixed paper type or thickness are performed, the temperature is adjusted in order to depressurize the fusing nip to reach the specified fusing temperature, resulting in reduced throughput due to longer waiting time.
Page 327 Throughput Reduced When Printing Jobs with Mixed Paper Type or Thickness, or After Changing Paper Type or Thickness • After performing the solution, it is recommended to perform the color calibration of the external printer controller.
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Pro c7500h

Ricoh Pro C7500 Original Instructions Manual

1 Before You Begin

2 Specifying and Checking Paper Settings

3 Troubleshooting Image Quality Problems

4 Image Quality Problem: Full Page

5 Image Quality Problem: Lines/Streaks

6 Image Quality Problem: Spots

7 Fanning the Paper/Cleaning

8 Troubles Related to Paper Feeding and Delivery (Main)

9 Related to Paper Feeding and Delivery (Main/Buffer Pass Unit)

10 Troubles Related to Paper Feeding and Delivery (Vacuum Feed LCIT RT5150)

11 Post-Processing Option Troubleshooting

12 Problems Related to Throughput

Quick Links

Troubleshooting

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Summary of Contents for Ricoh Pro C7500