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Ricoh Aficio SP C820DN Support Question

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Question posted by MAFA on February 6th, 2012

A Gray Color Gradients Got Broken And Appered With White Lines.

Any time I need to print some with gray color gradients the print came with white lines.

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Answer #1: Posted by freginold on February 15th, 2012 7:40 PM

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freginold

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There are two things that can typically cause white (or void) lines on gray or black print: a dirty laser slit glass and toner built up on the developer blade.

You can clean the slit glass easily to see if that fixes the problem. Open the front door, and use the long thin blue brush lying in the front cover to clean the slit glass beneath the black drum unit. (There is a rectangular opening beneath the drum unit -- slide the brush, with the white tip first, into this opening all the way and slide it back and forth a couple of times.) If the void lines go away, then that's all it was.

If the void lines are still there, then you may have toner built up on the doctor blade in the black development unit. You can either have a technician come out and clean the doctor blade, or you can have the development unit replaced completely. Depending on whether or not you have a service contract, it will be easier to replace the unit but it will be more expensive if you don't have a contract.

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Related Ricoh Aficio SP C820DN Manual Pages

Design Guide - Page 2

... only 33 1-8 Job/Access Logs...35 1-9 Capture (MFP Models Only 39 1-9-1 Overview of Capture Operations 39 1-9-2 Operations that Generate Captured Images 39 Page 2 of 86 Print Controller Design Guide for Information Security TABLE OF CONTENTS 1.

Design Guide - Page 3

... Considerations 42 1-9-5 Captured Documents and Log Data 42 1-10 Additional Methods for Each Individual User 45 2-1-7 Job/Access Log Data Collection 45 2-1-8 Print Backup ...45 2-2 Printer ...47 2-2-1 Overview of Printer Operations 47 2-2-2 Data Flow...47 2-2-3 Data Security Considerations 51 2-3 Scanner (MFP Models Only 54 2-3-1 Overview of Scanner Operations 54 2-3-2 Data Flow Security...

Design Guide - Page 4

... 4-2 Data Flow...80 4-2-1 Scanning Functions: Sending Data Over the Network with the Copier and Scanner Page 4 of Copy Data Security Operations 74 3-2-2 Data Flow...75 4. Print Controller Design Guide for Information Security 2-4-2 Data Security Considerations 60 2-4-3 Protection of the Journal and Documents in Document Server Storage 61 2-4-4 Protection of FAX Transmission...

Design Guide - Page 5

Print Controller Design Guide for Information Security (MFP models only) ...80 4-2-2 FAX Functions (MFP models only 80 4-2-3 Network Functions 81 4-2-4 Printer Functions 81 4-2-5 Machine Administrative Functions (MFP models only 81 4-2-6 Authentication Functions 81 4-3 Data Security Considerations 83 4-3-1 Preventing the Installation of Illegal Applications 83 4-3-2 Authentication of ...

Design Guide - Page 6

... SP C820DN SP C821DN Pro 907EX Pro 1107EX Pro 1357EX Pro 907 Pro 1107 Pro 1357 AFICIO MP 6001 MP 6001 SP MP 7001 MP 7001 SP MP 8001 MP 8001 SP MP 9001 MP 9001 SP AFICIO ...machine. For these details, please refer to the Operating Instructions for the multi-functional products and laser printers listed below (herein referred to as the information security of image data and other information handled ...

Design Guide - Page 7

Image data - data Flash ROM Operation Panel Engine Image Processing Scanning Image Processing Printing FCU FAX comm. Firmware Encryption Processor HDD - Line External Charge Device I/F USB TypeA USB TypeB Ethernet Host I/F Optional I/F: Parallel Gigabit Ethernet Wireless LAN Bluetooth IEEE 1394 External Charge Device IC Card Reader Pict ...

Design Guide - Page 8

.... • TPM (Trusted Platform Module): When the MFP/LP main power is turned on, this security module (chip) performs a verification on the validity of 86 Print Controller Design Guide for Information Security • Serial communication between the external charge device I/F and external coin/card-operated devices. • External controller I/F board: Acts...

Design Guide - Page 9

... LAN Bluetooth IC Card Reader Pict Bridge Compatible Device RC Gate Internet SD Card I/F Page 9 of 86 data Flash ROM Operation Panel Engine Image Processing Printing TPM NVRAM - Page memory - Print Controller Design Guide for Information Security 1-1-2 LP RAM - Firmware Encryption Processor HDD -

Design Guide - Page 10

Print Controller Design Guide for Information Security • RC Gate: Intermediary device connected to the LP via an Ethernet connection for performing remote diagnostic operations including ...

Design Guide - Page 11

...Security 1-2 Software Configuration SDK Copier Scanner FAX Web DocBox Printer GW WS WebSys EAC VAS ECS MCS OCS FCS NCS... S Shared Service Layers SRM libc IMH Engine I/F Scanning Engine Printing Engine MFP only NetBSD FCU MFP only HDD Software Configuration 1-2-1...telecommunications lines. Transfers data between the controller and engine. the HDD...

Design Guide - Page 12

... the image creation process. Secondary data is handled via a telecommunications line. Also receives FAX data and prints it out from the printing engine. Mediates communication between the driver UI and the host I /F. Controls the encryption and decryption functions. 1-2-2 Principal Machine Functions Copier Printer Scanner FAX Activates the scanning engine, which then sends the data...

Design Guide - Page 13

... Allows operations to be peformed on Document Server documents stored in the MFP (viewing, downloading, printing, deleting) via a Web interface. Page 13 of supporting an external controller. VAS: An ...to view and make changes to user information and machine configuration settings, as well as store Printer documents to function with the MFP/LP. GWWS also acts as a client to external Web...

Design Guide - Page 14

... the MFP/LP, thereby preventing access by specified machine function(s). In addition, this arrangement prevents illegal access to networks and internal programs from an outside line. 3. Print Controller Design Guide for Information Security 1-3 Data Security 1-3-1 External I/F The MFP/LP is equipped with the following external interfaces: • Serial I/F for connection of external...

Design Guide - Page 15

... IEEE1284 parallel I/F, USB I/F (Type B), and Bluetooth I /F, and are limited to the MFP internal modules until after the MFP/LP has recognized the peripheral device. PictBridge printing functions (color MFP/LPs only): After the identity of the image data stored in which case the device and MFP exchange the relevant information...

Design Guide - Page 45

...-color, two-color and single-color modes for each user. In addition, it is possible to set to "Level 2", changes to print out black and white originals. As this minimizes the amount of color toner...the Machine Administrator. In addition, it is possible to prohibit Full Color printing and instead enable Auto Color Detection, which contains information on this has the added benefit of...

Design Guide - Page 59

... from the scanner engine to the other party's machine via a telecommunications line as a G3 or G4 FAX. Print Controller Design Guide for Information Security 2-4 FAX (MFP Models Only) 2-4-1...forwarded on to the printer engine for printing out. • For Internet FAX transmission, the scanned image data is converted into a format for printing out at a later time. Operational log entries...

Design Guide - Page 60

...communication and the connection will not be registered with a terminal that does not use these lines. • Internet FAX supports TIFF files and text-based e-mail only, which the MFP... accordance with the SIP server, this as a communication failure and terminate the connection. Print Controller Design Guide for both reception and transmission. With servers using SMTP reception/delivery,...

Design Guide - Page 74

...time from the printer driver, a pre-defined pattern will be embedded in the pattern). If a user attempts to make a copy of an image containing the embedded pattern (or store the image to a solid gray image. In addition, if the user entered a text string to discourage unauthorized copying of confidential documents. Print... replacing image with the vertical line pattern, but will sound. Then...

Design Guide - Page 75

...The data flow for when the Copy Data Security feature is selected at the time a print job is performed is no need to remove the unit to further deter the unauthorized copying of documents. By ... image with vertical line pattern: The optional Copy Data Security Unit functions as "Copying of this , an entry for the event itself is replaced with the username. The printer language-encoded data ...

Design Guide - Page 76

Strong deterrent MFP ・ MFP with vertical line pattern (before data is stored). date) is printed over image and clearly visible Page 76 of 86 Print Controller Design Guide for Information Security Special pattern embedded when image is printed out MFP with optional Copy Data Security Unit installed and enabled Contract When pattern is detected...