Ricoh Aficio SP C820DN Support Question
Ricoh Aficio SP C820DN Support Question
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Question posted by paularomano on June 13th, 2013
Red Dots Appearing On Printouts
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Current Answers
Answer #1: Posted by freginold on June 14th, 2013 3:04 AM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
If the red dots appear randomly, they are likely caused by the magenta developer unit, either starting to wear down or having a lot of paper dust in it. If the red dots always appear at the same spots in the same intervals, they are probably caused by the magenta drum unit. In either case, replacing the magenta PCU should fix the problem.
Related Ricoh Aficio SP C820DN Manual Pages
Design Guide - Page 3
... 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 Considerations...
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
...(e.g.
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...
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...
Design Guide - Page 11
...)
Controls engine operations for scanning and printing.
Principal Machine Functions
Print Controller Design Guide for Information Security
1-2 Software Configuration
SDK
Copier
Scanner
FAX
Web DocBox
Printer
GW WS
WebSys
EAC
VAS
ECS
MCS OCS
FCS
NCS
DCS
UCS
CCS
NRS
LCS
MIRS DESS
SCS
S
Shared Service Layers
SRM libc
IMH
Engine...
Design Guide - Page 12
... the MFP/LP's access logs (e.g. Secondary data, such as that converts the printer language into image data, which is handled via a telecommunications line. Print Controller ... protocols between SP settings and machine operations. Address Book, Document Server, MFP/LP functions). Controls the encryption and decryption functions.
1-2-2 Principal Machine Functions
Copier Printer
Scanner FAX
...
Design Guide - Page 13
... stored on the MFP/LP.
This includes the ability to view and make changes to user information and machine configuration settings, as well as store Printer documents to change some MFP/LP functionality to be peformed on models capable of 86 In addition, this module also makes it possible to the...
Design Guide - Page 17
...options.
Files are widely available for Information Security
1-4 Protection of model and target machine functions (Copier, Printer, etc .)
2. Decryption Public key
M D2
If MD1 = MD2
"MD": Message Digest
6. ...not
3. The MFP/LP checks the firmware to generate the value MD1. System, Printer, FAX, LCD).
The basic identifying information of firmware into the MFP/LP via this...
Design Guide - Page 18
... user
1. Generate digital signature
Private key
3. The process for remote updates is virtually the same as well.
Verification of model and target machine functions (Copier, Printer, etc.)
3. Print Controller Design Guide for some cases, routed through multiple servers before reaching their destination, it is necessary to use the authentication process described...
Design Guide - Page 22
... by the Administrator using the following types of characters, while Level 2 requires that the password contain three or more of that do this, however, the Printer/Scanner option must be used for LDAP Authentication and LDAP searches. Note: These two features apply to general user accounts authenticated through Basic Authentication (performed...
Design Guide - Page 32
... who registered the entry. It is possible to prohibit all users registered in the ACL from the Address Book ACL, it is stored if the Printer/Scanner option is stored in the Address Book, as well as viewing, editing, or deleting existing entries. Print Controller Design Guide for Information Security
1-7-3 Protection...
Design Guide - Page 33
Print Controller Design Guide for Information Security
*1: This item does not appear in the Address Book on this data by general users, groups, owners, and User Administrators. Access Privilege Management Structure for the Address Book
Make
View ...
Design Guide - Page 35
... occurs, after which the data is stored in an MSDE or SQL Server database. In addition, these administrators are the only persons who are : SMC printout, log-in, log-out, storage or deletion of a file in the Document Server (MFP HDD), deletion of all Document Server documents in a single operation, HDD...
Design Guide - Page 40
...memory LAN FAX transmission
Storage of LAN FAX file to HDD for later transmission
Transmission of LAN FAX file stored in HDD
Printer
Printing out of LAN FAX transmission file stored in HDD File printed out with Remote Print
Scanner
Desk Top Editor For ... Top Editor For Production to HDD Printing out of 86
Normal Print, Locked Print, Sample Print) Storage of Printer file to the MFP HDD.
Design Guide - Page 42
... for Information Security
1-9-4 Security Considerations
Three transfer protocols are available for sending captured documents to authenticate the target ScanRouter server. Protocol selection is necessary to SP Mode without authorization from the user. In addition, the operator can also perform the following (MFP models only):
Only the user who initiated the job...
Design Guide - Page 47
...converted (beginning from the host computer is performed by page. The former is performed by the printer language processing subsystem, while the latter is interpreted by page. Once this , the data is... in the HDD page by the printing subsystem.
• Once the data sent from the printer driver (e.g. The data is sent to image data page by the
language processing subsystem, after ...
Design Guide - Page 49
...is managed and maintained by the Printer function itself . The username and password are sent along with the file. When the printer receives the file, the printer language processing subsystem (PDF interpreter) ...the Sample Print, Locked Print, Hold Print, and Stored Print printing methods, and also appears in the printing history. Once the file is recognized as an encrypted PDF file, the...
Design Guide - Page 61
...appear on FAX jobs is job cancellation. Since this information.
• In order to guard against the reception of unnecessary or unwanted data, such as SPAM e-mail, it is possible to register a list of performing on the printout... Operations
• By setting restrictions on the document (e.g. the user who appears in the MFP.
• It is possible to assign access restrictions to...
Design Guide - Page 74
...be replaced with a vertical line pattern Note: The detection aspect is prohibited. Then, on the printout, the original image is installed on an MFP (incl. Users can be embedded in the pattern).... of the image is provided as "Copying of this vertical line pattern can select from the printer driver, a pre-defined pattern will be saved to the superimposition of the selected pattern on ...
Design Guide - Page 75
...the image, the Copy Data Security Unit examines the data for the presence of 86
The exact appearance of the optional text string (size, image density, etc.) will depend on which the document... was created, or the name of the user who created the document. The printer language-encoded data sent from the host computer is then combined with the vertical line pattern. ...
Design Guide - Page 84
... a special tool, Ricoh generates a unique key file for the digital signature. These applications are not disclosed to Type 2 applications. Page 84 of the SDK application appears on the installation screen and the application can be installed on the SD card.
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