Workgroup Color Technology REV 1

7/28/2019 Workgroup Color Technology REV 1

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Workgroup Color Page Printer TechnologyService Authorization and Technician Certification

Version 1.1 Apri l, 2007

Study Guide

Thank you for your interest in acquiring Service Authorization on Oki Data's Workgroup Color PagePrinter Technology Products. We hope that the information within OKI University will help you to providethe best possible service and support to your OKI Customers.

What must I do to pass the Workgroup Color Page Printer Technology Service AuthorizationExam?

You must score at least 80% out of the 25 questions correctly to successfully complete the exam. Yourexam answers will be automatically graded, and you will receive the results simultaneously. If you fail tosuccessfully complete the exam, you may take it again, but must wait a day for your exam results to bereset.

Your Service Profile will be automatically updated within 24 hours of successfully completing the exam toreflect your service authorization status. In addition, you should receive a Certificate of Completion bymail within thirty days.

Hands-on C-Series Service Training SeminarOnce you have successfully completed the Workgroup Color Page Printer Technology Exam, werecommend that you enroll in and attend one of OKI's Hands-on "C-Series" Service Training Seminars.

These optional two-day service-training seminars will teach you to troubleshoot, service, and repair OKI'sadvanced Workgroup Color Products. Please note that if you have previously attended the Service

Training Seminar, it is not necessary to attend a second time.

To enroll in, or learn more about the Workgroup Color Page Printer Service Seminar, please choose the"Hands-On Training" option from the Main Menu.

Studying for theWorkgroup Color Page PrinterTechnology Service Authorization ExamPlease refer to the following references when studying for and completing the exam. All of the referenceslisted below are available in the Study for an Exam section of OKI UNIVERSITY, or in the BusinessPartner Exchange.

OKI Product Knowledgebase (For Workgroup Color Page Printers) C7200 / C7400 Service Manuals and User Manuals

C7350 Service Manual and User Manuals C7550 Service Manual and User Manuals C9300 / C9500 Service Manuals and User Manuals C9600 Service Manual and User Manuals C9800 Service Manual and User Manuals

For your convenience, a hardcopy version of the exam is appended to this Study Guide. We recommend that youresearch the questions on this exam, mark your answers on the hardcopy exam, and then transfer your answers tothe Online Exam.


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WORKGROUP COLOR PAGE PRINTER

TECHNOLOGY EXAM

1) According to the OkiDoc Knowledge Base, if a customer is receiving a "Fatal Error 140, 141, or 142"on the LCD Display of a C9500 printer, what are the probable causes of this error condition?

1. The drums are not seated correctly.

2. Paper is jammed in the fuser.3. The lift arms on the transfer belt are not engaging properly.4. The drum contact assembly is either dirty, or the spring-loaded contact is jammed.

A. 1, 2, and 3B. 1, 2, and 4C. 1, 3, and 4D. 2, 3, and 4

2) You are feeding paper in your C9800n using the Multi-purpose (MP) Tray. Unexpectedly, printing

stops and the operator panel displays ERROR 643. After consulting OKI Knowledgebase Document#3600, you determine there is a paper jam in the ________________________.

A. Multi-Purpose TrayB. FinisherC. InverterD. Duplexer

3) You inadvertently install a C7400 Duplexer in your C7550 Printer. According to the OKIKnowledgebase Article -Addi tional Er ror Codes - C73/C75/C93/C95 Ser ies Printer Options -

which of the following Fatal Errors will be displayed?

A. Fatal Error112B. Fatal Error110C. Fatal Error 111D. Fatal Error113

4) An end-user can replace which of the following C7300/C7500/C9300/C9500 items?

1. Toner Cartridge

2. Image Drum3. Oil Roller4. Toner Waste Box5. Transfer Belt6. Fuser

A. 1, 2, 3, 4, and 5 (only)B. 1, 2, 3 and 4 (only)C. 1, 2, 3, 4, 5 and 6D. 1, 2, 5 and 6 (only)


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5) There are two sensors for detecting color registration in all OKI Workgroup Color printers.

A. TrueB. False

6) You have replaced the Engine Board in a C9600 and inadvertently left the EEPROM on the bad boardwhich you have already returned to OKI. According to Knowledgebase Article #3656 EEPROMPart Numbers for Color Products, which of the following part numbers should you order to replacethe missing EEPROM?

A. Part Number 55951001B. Part Number 55943501C. Part Number 55983601D. Part Number 55943701

7) Which alignments are corrected by the auto registration feature in all OKI Workgroup Color printers?

1. Color misalignment in Y-axis direction (Positional error caused by I/D unit and LED head)2. Color misalignment in X-axis direction (Positional error caused by LED head)3. Color misalignment in slanting direction (Positional error caused by LED head)

A. 1 onlyB. 2 onlyC. None of the aboveD. All of the above

8) How much standard Random Access Memory (RAM) is in the C9300n?

A. 128 MBB. 192 MBC. 256 MBD. 512 MB

9) How do you enter the System Maintenance Mode on a C9300?

A. Press and hold CANCEL while powering on the printer.B. Press and hold the 0, 1, 6 & 7 switches while powering on the printer.

C. Press and hold the 1 and 5 switches while powering on the printer.D. There is no System Maintenance Mode on a C9300.


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10) Which consumables in the C7300/7500 series printers have a "fuse conduction" circuit to indicate anew versus used condition?

A. The image drum / fuser unit / transfer beltB. The image drum / toner cartridge / image drumC. The transfer belt / fuser unit / waste toner collection tankD. None of the Above

11) In order to add an optional hard disk drive to a C7350/7550 series printer, you must:

A. Open the top cover; remove the right side cover panels and install the hard drive on theControl Board.

B. Remove the image drum tray: Remove the transfer belt assembly and install the hard drive onthe supplied frame / connector.

C. Slide the Controller Board out from the rear of the printer: Install and mount the hard drive inthe space indicated on the Controller Board.

D. None of the above - The C7000 does not support a non-factory installed hard disk drive.

12) Which of the following are reasons why an image displayed on a computer monitor may neverexactly match the same image printed from a color printer?

1. Monitors are based on RGB. Printers are based on CMYK.2. Color Management Systems ensure a better match between the input data and printed result, but

cannot always allow for monitor adjustment or a variation in paper stock.3. The inks used in printing have imperfections; the type of paper used affects color appearance.4. Some colors can be displayed on a monitor, but not printed, while other colors can be printed, but not

displayed on a monitor.

A. 1 and 2 (only)

B. 2 and 4(only)C. 1, 2, 3 and 4D. 1, 2 and 4 (only)

13) According to the Printer Setup Section of the C9600n Setup Manual, OKI strongly recommends thatyou connect this product to an uninterruptible power supply (UPS).

A. TrueB. False

14) According to the C9500 Users Guide, the USAGE MENU will not display which of the followinginformation?

A. the TOTAL number of pages printed by the printerB. the number of pages printed from the MP TrayC. the number of pages printed in ColorD. the amount of black toner used


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15) When would a Toner Low condition prevent the C7300/7500 from printing?

1. When the menu is set to stop on Toner Low condition2. When approximately 1,000 pages have printed after a toner low condition3. When the incorrect toner is installed in an OPC drum4. With the default menu settings, on a toner low condition

A. 1 and 2B. 3 and 4

C. 1, 2 and 3D. All of the above

16) When you load 20 lb. Bond in Tray 1 of the C9300, the Paper Weights and Media Settings sectionof the Users Guide recommends that the Media Weight be set to:

A. MediumB. HeavyC. LightD. Medium - Heavy

17) When printing color, which of the following are true?

1. Dithering is a technique where pixels of different colors are placed in close proximity to give the illusion ofanother color as perceived by human vision.

2. Registration problems, such as color shifts or "blurred" colors, occur when the colors do not print in thespecified positions.

3. Half-toning is the spacing of pixels (the dots that make up a printed image), which gives the illusion of shade ortone. Increasing the spacing of dots lightens the shade so that it tends towards white (the color of the page).

4. Paper stock / print media choice has NO affect whatsoever on the appearance of color.

A. 1 onlyB. 1 and 2C. 1, 2, and 3D. 1, 2, 3, and 4

18) Which of the following emulations are available with the C7300/7500 series printers?

1. HP PCL5c2. Adobe PostScript 33. IBMPro Printer II

4. Epson FX

A. 1 and 2B. 1 and 3C. 2 and 4D. 3 and 4


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19) The C7300/7500 series printers have an integrated waste toner collection system that only needs tobe replaced after the printer is used for 300,000 pages?

A. TrueB. False

20) A potential customer has called you to ask which printer emulations are provided by the OKI C9600.

According to the specifications, the correct answer is ________________________.

A. PCL 5cB. PCL 6C. PostScript 3D. All of the above

21) Which of the following statements are true?

1. Printing at 5% density, a C9300 replacement toner cartridge will produce about 15,000 pages.

2. Printing at 5% density, a C9500 replacement toner cartridge will produce about 18,000 pages.3. A toner cartridge in the C7300 will produce an average of about 15,000 pages at 5% print density.4. Each of the C7500 image drums should normally last up to 30,000 pages with continuous printing. These

numbers are approximate, since job page counts may vary, along with the environmental conditions and papertypes used.

A. 1 (only)B. 1 and 2 (only)C. 1, 2, and 3 (only)D. 1 and 4 (only)

22) A customer states there is a repeating black mark (spaced 3.7 inches apart) on every page of theirC7300 printer output. Which item should you replace?

A. Black Image DrumB. Fuser UnitC. Transfer BeltD. Toner Cartridge

23) When replacing a C9300/9500 Engine Controller Board, you must remember to remove theEEPROM from the old board and install it in the new board?

A. TrueB. False


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24) Which of the following statements are true about toner consumption detection in theC7300/C7500/C9300/C9500 series printers?

1. The used toner amount is detected by counting the number of dots printed.2. The sum of the counted values is stored in EEPROM.3. Upon detection of toner low, the amount used is automatically set to 10%.4. When the equivalent of 1,000 pages on A4 and 5% duty is reached, toner-empty occurs and the printing stops.

A. 1, 2, and 3

B. 1, 2, and 4C. 1, 3, and 4D. 2, 3, and 4

25) According to the C9600 Users Guide, the Print Feed Rollers should be cleaned with a soft clothlightly moistened with water.

A. TrueB. False

Workgroup Color Technology REV 1

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