Konica Minolta bizhub PRO C6501 Troubleshooting Manual
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- User manual (629 pages) ,
- Additional information (28 pages) ,
- Setup instructions (19 pages)
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Summary of Contents for Konica Minolta bizhub PRO C6501
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Page 1: Troubleshooting Guide
TROUBLESHOOTING GUIDE C6501/C6501P/C5501 C6500/C6500P/C5500 2008.9 Ver.2.0 CS Operations... -
Page 2: Table Of Contents
Table of contents Low density (under low humidity environment) ・・・・・・・・・・・・・・・・・・・・ 3 White spot ・・・・・・・・・・・・・・・・・・・・ 4 Carrier attachment to the image ・・・・・・・・・・・・・・・・・・・・ 5 Poor transfer ・・・・・・・・・・・・・・・・・・・・ 6 Background ・・・・・・・・・・・・・・・・・・・・ 7 Repeater Mark ・・・・・・・・・・・・・・・・・・・・ 8 Toner spilling ・・・・・・・・・・・・・・・・・・・・ 9 White lines (to sub-scan direction) ・・・・・・・・・・・・・・・・・・・... -
Page 3: Low Density (Under Low Humidity Environment)
1 Low density (under low humidity environment) [Symptom] The density is low at solid and highlighted part. [Probable cause] Increase of toner charge in developer under low humidity environment. Decrease of developing ability due to the toner charge increase in developer due to the too high or too low coverage original. -
Page 4: White Spot
2 White spot [Symptom] White spot appears on the image. Spot with core Spot without core When symptom occurs only for single color, see probable cause A. If the symptom is solved when changing the paper type to the recommended paper, see probable cause B. -
Page 5: Carrier Attachment To The Image
3 Carrier attachment to the image [Symptom] Carrier attaches to the paper and image turns to the leopard-print-pattern with the rough texture. [Probable cause] Environment changes and conditions to cause carrier attachment are satisfied. [Solution] To reduce the carrier attachment, adjust the following. 1) Service mode =>... -
Page 6: Poor Transfer
4 Poor transfer [Symptom] Regardless of the color, white spots appear entire image area or in the band area. A: If the symptom occurs in single color, see probable cause A. B: If the symptom occurs in all colors, see probable cause B. C: If the symptom disappears after changing the paper, see Probable cause C. -
Page 7: Background
5 Background [Symptom] Toner attached to the overall white area and background is slightly colored. A: If the background is created at the process section, see probable cause A. B: If the background contains the data (like following figure), see probable cause B. Background appears from approx 3mm inside from the paper edge. -
Page 8: Repeater Mark
6 Repeater Mark [Symptom] On the output image, cyclic soilage or white area appears. [Cause] Failed mechanical part. ・Approx 188mm pitch: Damage on the drum surface. ・Approx 251mm pitch: Damage on the fusing belt ・Approx 53mm pitch: Developer conveyance failure of developing sleeve. ・Approx 95mm pitch: Soiled second transfer roller [Solution] Clean or replace the failed part or unit. -
Page 9: Toner Spilling
7 Toner spilling [Symptom] Toner spills and attaches on the output irregularly. [Probable cause] Due to the toner scattering or background (see Background), the inside of the machine is soiled then toner falls on the paper path from the separation claws etc, causing the soil. [Solution] 1) Check the status of dust proof filter/1 assembly (A03UR70100) at the right side of main body. - Page 10 Drum cartridge stay Fig 3: Drum cartridge stay 2) After taking out the process carriage, if inside of the machine is very dirty, replace the dust proof filter/2 assembly (65AAR71800) at the main body rear side. Rear side 3) Clean around the paper conveyance section and separation claws etc. After cleaning, feed around 10 sheets of blank A3 paper to remove the dust in the paper path.
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Page 11: White Lines (To Sub-Scan Direction)
8 White lines (to sub-scan direction) [Symptom] White lines to sub-scan direction (paper feeding direction) Paper feeding direction A: White band appears at the single color, A-a Charging corona problem A-b Developing unit problem A-c Scratched drum B: Sharp white band appears at the single color, see probable cause B. B. - Page 12 Replace drum cartridge. B: Sharp white band appears at the single color (foreign material on the laser path) [Probable cause] Dust, toner and so son attaches to the light path for the image wiring and locks the laser beam, causing white band to appear. [Solution] Clean the soil and dust which block the light path with the Hydrowipe.
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Page 13: Uneven Gloss
9 Uneven gloss [Symptom] Oval shape uneven gloss appears at the image part. [Probable cause] Foreign material attaches to the fusing belt (dust, carrier). It is presumed that the dust attaches while replacing the fusing belt. (Though it is not reproduced during the in-house test but it is the possible factor for the dust entrance.) [Solution] Replace fusing belt... -
Page 14: Paper Waving
10 Paper waving [Symptom] The edge of the paper becomes wavy. [Probable causes and solutions] The paper shrinks ratio at the fusing unit is different between the center and edges of the paper. To correct it, change Dipswitch 1-0 (To display process adjustment to user screen) from 0(Default) to 1. -
Page 15: How To Maintain Consistent Color During Continuous Printing
11 How to maintain consistent color during continuous printing [Symptom] Inconsistent color [Solution] C6500 series have 3 correction items to adjust the color. Aim the stable color optimum for the target depending on the job size and machine usage by combining correction items and interval. -
Page 16: Darker At The Trailing Edge Of Image
12 Darker at the trailing edge of image [Symptom] The image density increases at the trailing edge of the paper to the paper feeding direction [Probable cause] Developing sleeve rotation direction and drum ration direction is opposite. [Solution] ► Solution 1: Change the screen. -
Page 17: Problem With Non-Recommended Paper
13 Problem with non-recommended paper [Symptom] When non-recommended types paper is used, paper jam, blister, or 2 transfer problem occurs. [Symptom in detail] A-a : J31-01, 02 (fusing wrapping jam) occurs with thin coated paper (128g/m or less) (Probable cause A-a) A-b : J16-01, 02 (no feed) occurs with very smooth paper (Probable cause A-b) B: Blister occurs with coated paper (Probable cause B) C: Transfer failure occurs (Probable cause C) -
Page 18: How To Adjust Side1/2 Image Registration
14 How to adjust side1/2 Image registration [Symptom] How to adjust the image position difference between side 1 and side 2 in duplex print. [Solution] 2 types of adjustment methods are available. 1) Perform image registration adjustment based on the difference of each machine 2) Perform fine adjustment according to the tray and paper type Adjustment 1) Perform image registration adjustment based on the difference of each machine Service =>... - Page 19 (Front side adjustment) Print the chart and measure the specified part and input the value and press [Adjustment Start] (Back side adjustment) Check the difference from front side at the［ +］ positions and input the value, press [Adjustment Start]. Table of contents...
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Page 20: Thin Paper Jams Wrapping Around The Fusing Belt (Separation Failure)
Thin paper jams wrapping around the fusing belt (separation failure) [Symptom] When printing image where 2 or more colors (red, blue, green, etc.) are overlapped and much amount of toner attaches on coated paper, paper wraps around the fusing belt and jams. [Available thin paper with C6500 series] Under NN environment, paper that can be separated with no problem with 2 or more overlapped color (red, blue, green) solid image is as follows. -
Page 21: Blurred Image
16 Blurred image [Symptom] Toner scatters around color characters as if the characters are blurred. [Probable cause] More toner is attached on multiple-color character than on single color character. As toner layer is thick, discharge may occur during image transfer process, causing toner scattering to occur. -
Page 22: Change Of Color
17 Change of color [Symptom] When ambient environment or media changes, color changes. [Probable cause] Image forming process features changes due to the change of environment (temperature and humidity) and media and effect of previous job coverage. [Solution] Perform Auto gamma Adjustment from utility menu or service mode then calibration. ・... -
Page 23: White Streaks (Drum Memory)
18 White Streaks (drum memory) [Symptom] In main scan direction, light white streaks appear at approx. 190mm interval. Approx. 190mm Paper feeding direction [Probable cause] If the humidity on the drum surface is different at enclosed space of the cleaning section and other part, the symptom appears by the cycle of drum rotation. -
Page 24: Waste Toner Packing
19 Waste toner packing [Symptom] Image is soiled in paper feed direction (sub-scan direction) [Probable cause] The rear duct filter is packed with dust or toner and the machine internal temperature rises. As the result, waste toner in the belt cleaning unit melts and then hardens up, causing the belt cleaning failure to occur. -
Page 25: Pfu, Lu Paper No Feed Under Low Temperature Environment (J16-02)
20 PFU, LU paper no feed under low temperature environment (J16-02) [Symptom] Under low temperature environment, PFU no feed jam (J16-02) occurs with coated paper. [Probable cause] Plastic component of coated paper attaches on the paper feed roller, separation roller and pick-up roller of PFU. - Page 26 LU202 Improved type has been installed to the LU from A03X0Y0000945. For the first time replacement, it is recommended to replace by the following unit A03WA5621 Feed roller assy A03WA5641 Feeding roller assy LU-202 Feeding shaft A03W5603 Pick up roller collar 56UA4060 Pick up roller A03X5652...
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Page 27: Gloss Unevenness On Side2 Of Coated Paper (Pfu, Lu)
21 Gloss unevenness on side2 of coated paper (PFU, LU) [Symptom] Gloss becomes uneven at the central part on the side 2 of coated paper fed from PFU. [Probable cause] Plastic component of coated paper attaches on the paper feed roller, separation roller and pick-up roller of PFU. - Page 28 For the first time replacement, it is recommended to replace by the following unit A03WA5621 Feed roller assy A03WA5641 Feeding roller assy LU-202 Feeding shaft A03W5603 Pick up roller collar 56UA4060 Pick up roller A03X5652 Paper feed roller A03X5653 Separation roller A03X5654 Table of contents...
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Page 29: Sc28-01 To 04 When Machine Is Powered Up
22 SC28-01 to 04 when machine is powered up [Symptom] SC28-01, 02, 03 or 04 occurs when machine is powered up after option HDD installation or replacement. [Probable cause] The connectors of option HDD are not properly connected. CAUTION: Originally, SC28-01 to 04 occurs if a patch for adjustment is not created during Dmax correction in the automatic gamma adjustment. -
Page 30: Sc28-31 To 34 (Charging Potential Correction (Vm) Error)
23 SC28-31 to 34 (Charging potential correction (Vm) error) [Symptom] Under low humidity environment, SC28-31 to 34 occurs after displaying "Adjusting" on the operation panel or performing auto gamma adjustment manually. [Probable cause] If performing auto gamma adjustment under low humidity (humidity inside machine is around 10%), due to the photoconductor drum humidity characteristic, LD Power becomes saturated. -
Page 31: White (Meandering) Line (Dust Attach On Pet Sheet)
24 White (meandering) line (dust attach on PET sheet) [Symptom] On the halftone for each color, white (meandering) line appears. [Probable cause] The dust attaches on the PET sheet which is equipped as the countermeasure against ozone. (under high humidity) [Solution] Remove charging corona for all colors and remove process carriage. -
Page 32: Pfu Centering Error (Image Suddenly Shifts By 5Mm)
25 PFU centering error (image suddenly shifts by 5mm) [Symptom] During continuous printing using Tray 4 and Tray 5, the image on the paper suddenly shifts by around 5 mm. [Probable causes and solution] The centering sensor located at the PFU exit detects paper edge and calculates the off-center amount. - Page 33 (How to check the PFU and main body connection position) Check point 1 If the hole center position The center of the holes on Positioning pin at front is different, adjust the the front side panel and side caster height with the inner side panel should be lever.
- Page 34 3) Centering adjustment value (for Tray 4 and/or Tray 5) is wrong To correct it, readjust the centering adjustment of “Tray 4” and “Tray 5”. Service mode => [01 Machine Adjustment] => [01 Printer Adjustment] => [02 Centering Adjustment]: Print the pattern and measure the off-center amount with the sale. [CAUTION FOR THE WORK] * For the “Tray 4”, “Tray 5”...
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Page 35: Centering Error, Skew (How To Set Paper In Pfu)
26 Centering error, skew (how to set paper in PFU) [Symptom] Centering error or paper skew occurs when using PFU [Probable causes and solution] Side guide plate is set improperly. 1) Side guide plate is not set symmetric at the center. To correct it, check the scale on the side guides front and rear. - Page 36 (1) Adjust the side guides with both hands If only one hand is used, only one side is moved and the side guide at the opposite sides does not move smoothly and the center of the loaded papers may slightly moves. Be sure to use both hands during moving side guides Read the indication and ensure...
- Page 37 (2) Adjust the space between paper and side guides. If there is too narrow gap, paper is caught with the side guide and no feed occurs. The paper should move to the arrowed direction without any resistance. Good sample Paper The gap between paper and side guide should be 0.1 to 0.2mm Side guides...
- Page 38 (3) How to load paper Since side guides were already adjusted, do not move them. Move only trailing edge guide. Because side guides were already adjusted, do not move them. Move only trailing edge guide to load paper. Table of contents...
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Page 39: Print Job Is Not Accepted While Machine Indicates Dehumidifying
27 Print job is not accepted while machine indicates dehumidifying [Symptom] The machine indicates dehumidifying and print job is not accepted for a while. Optional HT-50X is equipped. [Probable cause] When dehumidifier heater is installed to the tray to enhance coated paper feeding ability under high humidity environment (humidity is 56% or over), printing is not accepted until the sensor in the tray detects certain temperature with the default setting. -
Page 40: Transfer Shifts With Halftone On Thick Paper Under High Humidity
28 Transfer shifts with halftone on thick paper under high humidity [Symptom] Under high humidity environment (70%Rh and over) and when thick paper is used, density change appears on halftone at 2 points (at 225mm and at 380 mm from leading edge). Leading edge Approx. -
Page 41: Drum Drive Error C-22Xx
29 Drum drive error C-22xx [Symptom] C-22xx Drum drive error occurs [Probable causes and solutions] 1) Difference of line speed between intermediate transfer belt and drum is too large. As the result, the torque becomes lighter. To correct it, perform following a) Check the value of belt line speed Service mode =>... -
Page 42: Depletion Of Developer After Continuous Printing
30 Depletion of developer after continuous printing [Symptom] After printing low coverage continuously (5% or less coverage, 10,000 prints or more), the color used for the low coverage and continuous printing partially becomes too light. When checking the developer in the developing unit sleeve, the developer is not conveyed partially. [Probable cause] During continuous printing of low coverage, the toner in the developing unit was not consumed and the fluidity of toner becomes too low. -
Page 43: Abnormal Image
31 Abnormal Image [Symptom] During printing multiple sets of a job, the abnormal image as shown in below suddenly appears and it continues until the end of job. => When power switch of main body is turned OFF/ON, the machine returns to the normal printing. -
Page 44: Coupling Shaft Breakage Of Transfer Belt Unit Rear Side
32 Coupling shaft breakage of transfer belt unit rear side [Symptom] When removing transfer belt unit at the maintenance and the belt is rotated, the phase of the couplings at the rear side of transfer belt unit and main body becomes different. Consequently, the process carriage cannot be inserted smoothly. -
Page 45: How To Perform Book Printing From Adobe Acrobat (Ic303/Ic305)
33 How to perform book printing from Adobe Acrobat (IC303/IC305) ■ Booklet printing from Adobe Acrobat When you print a booklet job from Adobe Acrobat or Adobe Reader, make the following selections in the printer driver (as shown in the following illustrations): Select the “Choose paper source by PDF page size”... - Page 46 ■ Body page sizes The orientation of custom page sizes is not defined by the settings of Portrait or Landscape, but by the width and height. The width of the custom paper size indicates the binding edge. The height of the custom paper size indicates the cross binding edge.
- Page 47 If the Width is greater than the Height, the output is bound on the long edge (see the following illustration). The paper must be fed as LEF. If the Height is greater than the Width, the output is bound on the short edge (see the following illustration).
- Page 48 ■ Cover page sizes When you create a booklet using custom size paper, you must input the cover size manually or select it from the Paper Catalog. Booklet Maker does not automatically calculate the cover size. ■ Using As Spread option for printing a cover When you print a Perfect Binding job with the Perfect Binding finisher, you can choose to print the cover As Spread, which means that you print the front cover, back cover, and spine as a spread on one sheet of paper.
- Page 49 ■How original document relates to output book If you create a mixed size document and the cover is printed on a larger size paper than the body page, you can choose to print both sides of the cover, or outside of the cover. If you choose both sides of the cover, the following is true: ・...
- Page 50 The following illustration shows an original landscape document with top binding. ■ Using Microsoft Word to create a booklet with As Spread cover from Windows Using Microsoft Word to create a booklet with As Spread cover from Windows This section provides an example of a workflow printing a book from Microsoft Word. The sample book is 8-1/2 x 11 inches and 1-inch thick.
- Page 51 Steps 3 through 6 are shown in the following illustration. Close the Server Properties, Printers, and Control Panel windows. Open Microsoft Word. Choose Page Setup from the File menu, and then click the Paper tab. 10 Choose 11 x 18 from the Paper Size drop-down menu. 11 Click the Margins tab, choose Landscape as the Orientation, and then click OK to close the Page Setup window.
- Page 52 12 In Microsoft Word, create a two-page cover image and insert a section break at the end of the second page. 13 Select the third page and choose Page Setup from the File menu. 14 Click the Paper tab and choose This Section from the Apply To menu. 15 Choose Letter for the Paper Size.
- Page 53 click OK. 17 Create 20 to 600 body pages (10 to 300 sheets) in your document and save the document. 18 Choose Print, select Properties, and open Fiery Printing (or Printing Preferences). 19 In the Fiery Printing window, click the Layout tab and select Booklet. 20 Click Settings to open the Booklet Maker window, and then select the following: ・...
- Page 54 ・ Paper Size and Document Size: 8-1/2 x 11 ・ Orientation: Portrait or Landscape ・ Page Alignment: Enter any value ・ Content Input: As Spread ・ Content: Both Sides of the Cover ・ Cover Size: Define Custom Size ・ Width: 18.2 inches ・...
- Page 55 ■Using Adobe Acrobat to create a booklet with As Spread cover from Windows Using Adobe Acrobat to create a booklet with As Spread cover from Windows This section provides an example of a workflow printing a book from Adobe Acrobat. The sample book is 8-1/2 x 11 inches with 1-inch thickness.
- Page 56 6. Click Properties and open Fiery Printing (or Printing Preferences). 7. In the Fiery Printing window, click the Layout tab, select Booklet, and click Settings. 8. In the Booklet Maker window, make the following selections: ・ Booklet Type: Perfect (left), Perfect (right), or Perfect (top) ・...
- Page 57 ・ Cover Size: Define Custom Size ・ Width: 18.2 inches ・ Height: 11 inches ・ Booklet Cover Source: Tray 3 Close the Booklet Maker window and exit the printer driver. 10 Load 11 x 18.2-inch paper in Tray 3 and 8-1/2 x 11 paper in any tray. 11 Print the document.
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Page 58: Calibration Procedure
34 Calibration procedure [Purpose] Color matching between main body and controller [Solution] For color matching between main body and controller, calibration must be performed periodically. For the customer who is sever to color, it is recommended to perform calibration every morning at the starting up of the machine or just before starting every printing job. Following explains how to perform calibration for each controller. - Page 59 On Command Workstation, select [Server]-[Manage Color] and start up Color Wise Pro Tools. 3. Click [Calibrator] 4. Select [Expert] 5. At [1.Select the Measurement Method], select the method which customer uses. 6. On [3. Generate Measurement Page], click [Print].
- Page 60 7. From Page Type, Paper size, select [34 Sorted Patches] (recommended), [11x17/A3] (recommended) then depending on the customer condition, specify the input tray and screen (at least perform with Dot1 as it is the default print screen) 8. On [4. Get Measurements], click [Measure] button. Chose the same item you choose at step 7.
- Page 61 10. Click [Apply]. (Measurement result can be checked by [6. View Measurements]) [Creo controller] 1. Select calibration from tool. Then Color Calibration starts up. 2. For [Tray], [Media Type] and [Screening], select the item customer frequently uses. 3. Select [Print]. Then Auto gamma adjustment of the engine is automatically started and then calibration sheet is output.
- Page 62 5. When calibration ends successfully, click [Next]. 6. Select the paper type (media type) you actually performed the calibration. (This step is important), then click [Finish]. Table of contents...
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Page 63: C6501 Uneven Density Correction Procedure
35 C6501 uneven density correction procedure [Symptom] When taking halftone sample, the density at the both sides to the main-scan direction is too light than the center. Or, the linear density shift appears to the main-scan direction. [Probable cause] Uneven density to main scan direction appears due to the environment change and dispersion of Write Unit. - Page 64 1. First, press COPY button and confirm that the set number is specified as 8. Select the paper type and tray you want to use. Then print the pattern for the adjustment. Set the [Paper Type] and [Weight] of the Paper Setting correctly. 2.
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Page 65: Sd-506, Tri-Fold Adjustment Procedure
36 SD-506, tri-fold adjustment procedure [Symptom] With SD506 tri-fold, the L2 in Fig 1 variation accuracy is larger than specifications. The variation in the specification is +/-4mm for A4/8.5*11 inch. After performing this adjustment, the variation can be reduced to approx. +/- 2mm. Fig 1 Side view of tri-folded paper [Solution]... -
Page 66: How To Print On Custom Size (Ic303/Ic305/Ic408)
37 How to print on custom size (IC303/IC305/IC408) : MS Word How to print custom size from [Fiery IC303/305/408] using MS Word 1. From Windows control panel, open [Printers and Faxes]. 2. Select [File] – [Server Properties] 3. Select [Forms] tab. 4. -
Page 67: Rippled Uneven Image
38 Rippled uneven image [Symptom] At the secondary colors (red and blue) overlapping solid parts, unevenness appears to the main-scan direction. [Probable cause] At the overlapping colors (red and blue) if the toner charging amount increases due to the previous job or ambient factors, the electric charge flows in to the toner at the first transfer. Consequently, the charge increases in toner layer then peeling discharge occurs after passing the 1 transfer nipping. -
Page 68: Banding On Halftone
39 Banding on Halftone [Symptom] When solid part or blank part appears in the halftone area, the density of halftone becomes darker or lighter. Density of the halftone area Density of the halftone area at the becomes lighter. side of tree becomes darker. [Probable cause] a) If blank area exists in the halftone area, the transfer current concentrates to the halftone where toner is attached.