C7528N Manual |[Full PDF]

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We have 4 Ricoh Aficio C7528n manuals available for free PDF download: Maintenance Manual, Setup Manual, Product Support Manual. By parts code you can check what other devices it is used. You can print your Parts List or export to Excel to further work with it. We only help you to create your parts list for request from your suppliers. Add your headers and comments. Use saved Parts Lists as templates to create new lists. Change the contents of the old list and save it as new. You can add, delete list items, change headers, comments and quantity of spare parts. Please contact us for options. Precision Roller is in no way affiliated, sponsored or endorsed by these copyright owners or their affiliates or dealers This website uses a secure server to encrypt all sensitive information. Russian Federation, Moscow RU EN FOR COMPANIES Add company Add prices Smart cart (Empty) Search optimal sellers for your cartridges Read more. Try checking the product description for more information.Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Please try again.Please try again.Tested prior to packaging to ensure maximum page yield.In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account Please try your search again later.To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. See all our Ricoh They are completely guaranteed to work equally or better than the To date, we are experiencing a 100 success rate with.
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c7528n manual.

This content is provided “AS IS” and is subject to change or removal at any time. Amazon, the Amazon logo, Endless, and the Endless logo are trademarks of Amazon.com, Inc. or its affiliates. This blog is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. 2016 Wpsoul.com Design. All rights reserved. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Report this Document Download Now save Save C7528n For Later 0 ratings 0 found this document useful (0 votes) 326 views 389 pages C7528n Uploaded by Matej Skrt Description: Full description save Save C7528n For Later 0 0 found this document useful, Mark this document as useful 0 0 found this document not useful, Mark this document as not useful Embed Share Print Download Now Jump to Page You are on page 1 of 389 Search inside document Browse Books Site Directory Site Language: English Change Language English Change Language. This driver enables users to use various printing devices. The availability of functions will vary by connected printer model. Ricoh CL7200: User Guide. Aficio CL7200 Printer pdf manual download. Also for: Aficio cl7300, Cl7200dt2 - aficio color laser printer 402413, Aficio clp135, Aficio c7535n, Aficio lp335c, Aficio clp128, Aficio c7528n,. Buy Ricoh Aficio CL7300 toner from 4inkjets for low prices backed by a 100 Satisfaction Guarantee. Toner ships FREE on orders to the contiguous U.S. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Untrained and uncertified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal injury, damage to property or loss of warranty protection. Page 22 Page 23 ?
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IMPORTANT SAFETY NOTICES PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the printer and peripherals, make sure that the printer power cord is unplugged. 2. The wall outlet should be near the printer and easily accessible. 3. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components. 4. Page 24 SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate toner bottles or used toner. The diagrams show the necessary space. Page 34 PRINTER 1.3 PRINTER 1.3.1 POWER SOCKETS FOR PERIPHERALS ?CAUTION Rating voltage for peripherals. Make sure to plug the cables into the correct sockets. 1. Duplex unit Rating voltage output connector for accessory Max. DC24V 2. Finisher Rating voltage output connector for accessory Max. DC24V G130I504. Page 35 PRINTER Installation 1.3.2 INSTALLATION FLOW CHART The flow chart shows the installation procedure. Start A B Unpack the printer. The paper feed unit or LCT to be installed. The two-tray finisher or booklet finisher to be installed. Yes Yes Place the printer on the paper feed unit or LCT, and install it. The punch unit to be installed. No Yes The controller options to be installed. Install the punch unit. No Yes No Install the controller options. Install the finisher. Page 36 PRINTER 1.3.3 INSTALLATION AND SETTINGS Refer to the Operating Instructions for the installation procedure. Make the necessary settings for the service contract after you install the printer. Use caution when you make the settings. 1. Check the contract type carefully before you do steps 2 and 3. You cannot change some settings back again if you make an incorrect setting. 2. You must enable Meter Charge (SP5-930-001) for any meter click counter contract. The default is “OFF” (disabled). 3. Page 37 1.3.4 MOVING THE MACHINE ?
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CAUTION Make sure that the transfer belt is in its correct position before you move the printer. Otherwise the transfer belt and the black PCU can get damaged. NOTE: This section assumes that you manually move the machine to a different floor in the same building. See section 1.3.5 if you use transportation equipment. The supports on the paper feed unit or LCT make it difficult to move the machine. You can remove them when necessary. 1. Page 38 PRINTER 1.3.5 TRANSPORTING THE MACHINE Read this section when you use transportation equipment to move the machine. Page 39 Preparing the Printer ?CAUTION Make sure that the transfer belt is in its correct position before you move the printer. If not, the transfer belt and the black PCU can get damaged. 1. Check that the transfer belt is in its correct position. 2. Remove the supports ( 1.3.4). 3. Remove the toner bottles to not let toner flow into the toner supply tubes when you move the machine. NOTE: The release lever lifts the transfer belt up and presses it against the black PCU. Page 41 OPTIONAL TRAY UNIT Installation 1.4 OPTIONAL TRAY UNIT 1.4.1 TWO-TRAY FINISHER Accessory Check Check the accessories and their quantities against the following list. 1. 2. 3. 4. 5. 6. Description Q’ty Duplex-unit support. 1 Tray. 1 Link rail. 1 Link-rail holder. Description Q’ty 1. Punch unit.1 2. Sensor arm.1 3. Spring.1 4. Screw M3 x 6.2 5. Step screw. Page 45 Installation Procedure ?CAUTION Switch off the main machine and unplug its power cord. NOTE: The spacers are used to adjust the horizontal positioning of the punch holes. 12. Reassemble the finisher and check the punch operation. Page 48 OPTIONAL TRAY UNIT 1.4.3 BOOKLET FINISHER Accessory Check Check the quantity and condition of the accessories. Page 52 OPTIONAL TRAY UNIT 11. Page 53 OPTIONAL TRAY UNIT Installation 1.4.4 OPTIONAL PUNCH UNIT Accessory Check Check the quantity and condition of the accessories.
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Kit A B C D E F H Component Color PCU (3 PCUs for CMY) Color Development Unit (3 units for CMY) Fusing Unit (without Oil Supply Unit) Black Development Unit and Dust Filter Waste Toner Bottle Black PCU Paper Feed Rollers Expected Yield (Prints) 40 k 80 k 80 k 80 k 40 k 40 k 150 k NOTE: The yield is calculated for these conditions: A4 (LT) LEF, 5 image coverage ratio, 3 prints per job. Page 61 SERVICE MAINTENANCE 2. Page 62 Page 63 REPLACEMENT AND ADJUSTMENT Page 64 Page 65 SPECIAL TOOLS 3. REPLACEMENT AND ADJUSTMENT ?CAUTION Turn off the main switch and unplug the machine before you do the procedures in this section. So A make sure that the registration is adjusted within the adjustment standard range as described below. Side- to- Side Adjusts the side-to-side registration for each paper feed station. Page 68 IMAGE ADJUSTMENT 3.2.3 PRINTER GAMMA NOTE: Normally, the printer gamma is enough to adjust the color balance to achieve the optimum print output. The gamma correction is only required for fine-tuning to meet the user requirements. Adjustment Overview Make the gradation scales on the printout smooth from the highlight to the shadow density.Laser beams can cause serious eye injury. 3.6.1 CAUTION DECAL LOCATIONS The caution decals locations are shown below. Make sure that the cables from the laser diode board are not caught by the brackets when you do this. Page 86 PCU AND DEVELOPMENT UNIT 3.7 PCU AND DEVELOPMENT UNIT NOTE: Do not touch the PCU drum.Page 94 TRANSFER AND PAPER TRANSPORT UNIT 3.9 TRANSFER AND PAPER TRANSPORT UNIT 3.9.1 TRANSFER UNIT NOTE: Grasp the central areas of the front and rear frame when you remove or install the transfer unit. Reset the maintenance counter, (SP7-804-17).Page 98 TRANSFER AND PAPER TRANSPORT UNIT 3.9.4 TRANSFER BELT NOTE: Do not touch the transfer belt. NOTE: Clean the drive rollers with a damp cloth if they are dirty.Page 102 FUSING 3.11 FUSING ?CAUTION Be careful when you handle the fusing unit.

The machine starts initialization for the new unit. Make sure that the screw is positioned as shown above. Static electricity can damage NVRAM data. 2) Make sure the NVRAM is correctly installed on the board. Page 119 ELECTRICAL COMPONENTS 3.12.5 NVRAM REPLACEMENT PROCEDURE NVRAM on the BCU 1. Make sure that you have the SMC report (factory settings). This report comes with the machine. 2. Output the SMC data ( SP5-990-001) if possible. 3. Turn the main switch off. 4. Install an SD card into SD card slot 3. Then turn the main power on. 5. Copy the NVRAM data to an SD card ( SP5-824-001) if possible. Replacement and Adjustment 6. Turn off the main switch. Then unplug the power cord. 7. Page 120 ELECTRICAL COMPONENTS NVRAM on the Controller 1. Make sure that you have the SMC report (factory settings). This report comes with the machine. 2. Output the SMC data ( SP5-990-001) if possible. 3. Turn the main switch off. Then put a blank formatted SD card into SD card slot 3. 4. Turn the main switch on. 5. Copy the NVRAM data ( SP5-824-001) to an SD card if possible. Then install the bushing. Page 129 TONER SUPPLY UNIT 3.14 TONER SUPPLY UNIT NOTE: 1) Do not touch the PCU drum. Do not let metal objects touch the development sleeve. 2) Cover the PCUs with paper or cloth after you remove them. Keep them in a dark place.Possible Causes When initializing only the black developer, the initialization result becomes “1000”. 0 1 Successfully Developer completed initialization is successfully completed. Page 138 PROCESS CONTROL ERROR CONDITIONS No. Page 139 PROCESS CONTROL ERROR CONDITIONS 4.1.2 PROCESS CONTROL SELF-CHECK RESULT SP3-975-001 (Process Control Self-check Result) 0 1 Result Not performed Successfully completed ID sensor adjustment error Description Process control selfcheck is not done. Process control selfcheck successfully completed.

Page 143 PROCESS CONTROL ERROR CONDITIONS Possible Action Error Code The machine is not in the condition to execute the line position adjustment; The machine is in the toner near end 13 Replenish toner.Page 144 SERVICE CALL CONDITIONS 4.2 SERVICE CALL CONDITIONS 4.2.1 SUMMARY Section 4.3 shows the SC codes for controller errors and other errors. The latter (not controller errors) are put into four types. The type is determined by their reset procedures. The table shows the classification of the SC codes. Key Controller errors CTL A B Other errors C D Definition The error has occurred in the controller. The error involves the fusing unit. The machine operation is disabled. The user cannot reset the error. Page 147 SC TABLE SC No. Item Definition Possible Cause SC 220 Synch. Page 148 SC TABLE SC No. Page 149 SC TABLE SC No. Then it sends the signal to the LD units. The LD units send a feedback signal to the BCU. When the LD units start emitting laser beams, the feedback signal changes from High to Low. Page 150 SC TABLE SC No. C SC 285 Line position adjustment (MUSIC) error Line position adjustment fails four consecutive times. Page 151 SC TABLE SC No. Page 152 SC TABLE SC No. Item Definition SC 391 Charge AC: output error 391-01: K 391-02: Y 391-03: M 391-04: C The high voltage supply board sends the feedback signal (CN203-2 to 5; MCYK). The BCU checks these feedback signals every 8 ms. If the average of the sampled data is not within the control target 20 consecutive times, this SC code is generated. Page 154 SC TABLE SC No. Page 155 SC TABLE SC No. If this condition occurs three consecutive times, the SC is generated. Page 157 SC TABLE SC No. SC 503-02 Item Tray 3 error (Paper Feed Unit or LCT) Definition This SC is generated if the following condition occurs 3 consecutive times. Page 158 SC TABLE SC No. Page 159 SC TABLE SC No. Page 160 SC TABLE SC No. Page 162 SC TABLE SC No. Stapling does not finish within 150 ms after the staple hammer motor turns on.
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The stack feed-out belt H.P. Page 163 SC TABLE SC No. Page 164 SC TABLE SC No. Item Definition Possible Cause Related SCs Troubleshooting Procedure Type B SC 731 Two-tray finisher exit guide plate motor error The exit guide plate open sensor is not activated within a specified time after the exit guide plate motor turns on. Page 165 SC TABLE SC No. Page 166 SC TABLE SC No. Page 167 SC TABLE SC No. Page 168 SC TABLE SC No. Page 169 SC TABLE SC No. Page 170 SC TABLE SC No. However, the home position sensor does not turn on. Page 171 SC TABLE SC No. Page 172 SC TABLE SC No. Page 173 SC TABLE SC No.Page 174 SC TABLE SC No. Page 175 SC TABLE SC No. Item Definition Possible Cause SC 854 Wireless LAN card not detected SC 855 Wireless LAN card error The wireless LAN card is not detected after communication is established, though the wireless LAN board is detected. An error is detected in the wireless LAN card. SC 856 Wireless LAN card error An error is detected in the wireless LAN board. SC 857 USB interface error HDD: Initialization error HDD: Reboot error The USB interface cannot be used due to a driver error. Page 176 SC TABLE SC No. Item SC 867 SD card error SC 868 SD card access error 243-252: File system error 253: Device error Address book error SC 870 Definition Possible Cause The SD card is ejected from the slot. An error is detected in the data copied to the address book over a network. Page 177 SC TABLE SC No. Page 178 SC TABLE SC No. SC 998 Item Application start error Definition No applications start within 60 seconds after the power is turned on. Page 179 TROUBLESHOOTING GUIDE 1 4.4 TROUBLESHOOTING GUIDE 1 4.4.1 IMAGE QUALITY Work-flow The following workflow shows the basic troubleshooting steps for the considerable image quality problems on this product. Start Verification of problem reported from users Can the problem be duplicated. No Ask customer to duplicate it. Yes No Troubleshoot using the service manual or technical bulletin.

Troubleshooting Image Quality. Yes Make a test pattern in SP5-997. Page 180 TROUBLESHOOTING GUIDE 1 (From previous page) A Possible Symptoms y Colour shift Check the level of the colour shift and follow the troubleshooting guide if required. Yes All colour? No Check Points y Connection of flat cable between the controller and laser optic housing unit.Page 181 TROUBLESHOOTING GUIDE 2 4.5 TROUBLESHOOTING GUIDE 2 4.5.1 IMAGE QUALITY Detailed Explanation The table below shows the troubleshooting procedure for the considerable image problems. Subject Symptom Cause Action Symptoms not related to color Vertical white dotted lines If the paper transfer bias is excessive for the paper type used in the low humidity condition, vertical white dotted lines may appear. In the low humidity condition, the electrical resistance of paper tends to increase. Page 182 TROUBLESHOOTING GUIDE 2 Subject Symptom Cause Action Smeared image When making prints of an original with a solid image near the trailing, a smeared image may appear. The paper’s trailing edge tends to flip up and come very close to the fusing belt after it passes the paper transfer unit. The static electricity built up on the fusing belt may cause toner to move, resulting in the smeared image. This is most noticeable with 600x600dpi printing. Please instruct users to select 1800x600 or 1200x1200dpi. Page 183 TROUBLESHOOTING GUIDE 2 Subject Symptom Cause Action Symptoms related to color Faint image (black) Only black becomes lighter. The transfer belt position is not in the correct position. Black toner moves on the paper during transport to the fusing section, due to discharge from the toner to the surrounding guide plates. Toner blasting (2)-2 Black toner may blast on the 1st side of paper under the low temperature at color print mode. Page 185 TROUBLESHOOTING GUIDE 2 Subject Toner blasting (2)-4 Symptom Black toner may blast on the 2nd side of paper under the low temperature at color print mode.

Cause Black toner moves on the paper during transport to the fusing section, due to discharge from the toner to the surrounding guide plates. Action Decrease the paper transfer current and paper attraction roller current in SP data from the default setting to a recommended value depending on the mode selected as shown below. Page 186 TROUBLESHOOTING GUIDE 2 Subject Symptom Cause Action When the machine is tuned on in the morning (having been unused for a while), the ID of the initial outputs may be relatively low or high, in which case the machine needs to compensate by raising or lowering the ID during machine operation. When the machine is off, the environmental conditions can begin to affect the machine’s development capability. To correct the line position, the machine fusing unit pressure roller. The motor speed is automatically does the line position adjustment when the adjustable in the SP mode. Page 188 TROUBLESHOOTING GUIDE 2 As explained on the previous page, there are several types of color shift problem. Adjust the skew image for each color. SP2-908-002:C SP2-908-003:M SP2-908-004:Y ?If the left side of each image is skewed in trailing edge direction against an image of BK, increase the value of these SPs. Page 190 TROUBLESHOOTING GUIDE 2 A Shifted by 1.4 mm or less Check the color shift at the center of the image Adjust the main scan registration. SP5-993-10 to 21 Shifted by 1.4 mm or more Set the factory settings with the following SPs: SP5-993-10 to 21 No shift Execute the line position adjustment. SP5-993-002 Adjust the color development motor Leading edge Print out a 1 dot grid (F) pattern. Page 191 TROUBLESHOOTING GUIDE 2 D Shift Input the following values for each SP. Page 192 TROUBLESHOOTING GUIDE 2 Direction Sub-scan Area Leading edge Symptom Color shift, especially 100 mm from the leading edge.

Page 193 TROUBLESHOOTING GUIDE 2 Direction Sub-scan Area Entire image Symptom Color shift on the entire image, and the amount of shift from leading to trailing edge is almost the same. Page 194 TROUBLESHOOTING GUIDE 2 Direction Area Main-scan Entire image Symptom Color shifts on the entire image, and the amount of shift differs at front, center, and rear. Possible Cause Main-scan magnification is not correctly adjusted. Page 195 TROUBLESHOOTING GUIDE 2 Direction Area Main-scan Entire image Symptom Color shifts on the entire image and amount of shifts is almost the same at front, center, and rear sides. Possible Cause Action Required Output Mode Main-scan registration is not correctly adjusted. SP5-993010 (Y) SP5-993011 (M) SP5-993012 (C) SM The amount of color shift at the front and rear sides becomes gradually bigger toward the trailing edge. Measure the distance between the same sides of the two lines. For example (see the illustration), measure between the left edges of the lines. Magnification scope Pattern 1 Black line Color line G130T508.WMF Color shift in the sub-scan direction at the leading edge This illustration shows that the colored (dotted) line is above the black line. Page 197 TROUBLESHOOTING GUIDE 2 Pattern 3 Color shift (magnification change) in the main-scan direction Troubleshooting Fig. 1 and 2 shows that the colored (dotted) line has shifted away from the black line. The amount of shift is not the same as at the front, center, and rear. Both Fig. 1 and Fig. 2 show that the color grid is larger than the black grid. Yellow becomes larger from left to right in Fig. 1. Cyan and magenta become larger from right to left. Mode Normal color 600 dpi Tray selection 2 SP5-997 (Test Pattern) Setting Single Pattern Color Mode Resolution Color 12 6 (Black) Single Color 600x600 3. A horizontal band may show at 60 mm (2. Page 201 TROUBLESHOOTING GUIDE 2 4.5.

4 BLACK OVER PRINT Black over print does not let unexpected white lines show when black letters or lines are printed with color background. You can enable or disable this feature from the printer driver (default: disabled). Page 203 ELECTRICAL COMPONENT DEFECTS Component Toner end sensor CN K: 209-A2 Y: 206-A7 C: 206-A4 M: 206-A1 Drum gear position sensor K: 213-13 CMY: 210-B12 Belt mark sensor 215-3 Condition Open Shorted Open Shorted Open Shorted Open Waste toner sensor 213-4 Shorted Symptom Toner near end may not be detected even when the toner near end condition is satisfied. Toner near end may be detected even when the toner near end condition is not satisfied. SC440 Dancing control does not function. Page 204 BLOWN FUSE CONDITIONS 4.7 BLOWN FUSE CONDITIONS Main PSU The table lists the fuses on the main power supply unit. Page 205 SERVICE TABLES Page 206 Page 207 SERVICE PROGRAM MODE 5. SERVICE TABLES 5.1 SERVICE PROGRAM MODE ?CAUTION Before you start the service program mode, make sure that the printer is not processing data. The Data In LED lights or blinks when the printer is processing data. 5.1.1 HANDLING SERVICE PROGRAM MODE ?IMPORTANT Do not let the user get access to the service program mode. If a person other than service representatives gets access to the service program mode, the machine quality is not guaranteed. The value stored in this SP mode is different from SP1-004-004 (see the note for SP 1-004). This SP does not change the transfer belt speed. During a multi print job, the fusing temperature tends to slightly overshoot around the 10th sheet and then stabilize. The fusing section is already warmed up when the last print job was completed. If prints are made on OHP or thick paper at this time, the fusing temperature tends to be higher than the target, causing exit roller marks or a paper jam in the fusing section.

Charge bias (DC component) is automatically adjusted during process control; therefore, adjusting these settings does not effect while process control mode (SP3-125 Default: ON) is activated. When deactivating process control mode with SP3-125, the values in these SP modes are used for printing. Laser power is automatically adjusted during process control; therefore, adjusting these data has no effect while Process Control (SP3-125 Default: ON) is activated. This may cause the attraction force between toner and carrier to increase, resulting in low image density on outputs. When near-end is detected, the pixels in the images are counted. The machine detects toner end when the following happens, and the machine stops printing even during a print job. This corrects the Vcnt value for the current humidity. When small paper is used for printing, the transfer current flows to the drum at the non-image areas where the transfer belt touches the OPC drum. Changing this affects the mirror position, which corrects the optically skewed image; however, this will be automatically corrected at the next line position adjustment. NOTE: If the line position adjustment does not work properly, the line position can be adjusted manually with this SP mode as a temporary measure. All colors are displayed. Values show in the order K Y C M. e.g., 1 1 2 1: Initialization of Cyan failed but the others succeeded See the troubleshooting section for details. The auto toner density adjustment consists of three steps: detecting the development gamma, supplying or consuming toner, and detecting the development gamma again. When these three steps are all complete, it means a single auto toner density adjustment is complete. This value is effective when SP3-125-2 “LD Control” is set to “LD Power”. Adjusting this data effects the image reproduction especially in highlight areas.

The non-use time process control self-check is automatically done after the number of prints set with this SP mode has been made and no prints have been made for the time set with SP3-906-4 since the last print job. The charge roller generates NOx (nitrogen oxides), and these contaminate the OPC drum surface and may cause a smeared image. When the developer has deteriorated or when prints are made in a very low humidity condition, dirty background may appear continuously. When this kind of dirty background appears, check whether or not the development gamma is within the target (SP3-120 and 121). If the development gamma is not within the target, do this SP mode. NOTE: Make sure that both SP5-307-3 and 4 are correctly set. There are 8 digits in this SP. This SP is for use with NRS. Resets or deletes the engine-related data. Clears the system settings. Clears IMH data. DFU Clears MCS data. DFU Clears the printer application settings. Clears the netfile application management files and thumbnails, and initializes the job login ID. This number is printed on the Counter List, which can be printed with the user’s “Counter” menu. This can be up to 20 characters (both numbers and alphabetic characters can be input). 5812 002 FAX TEL No. Sets the fax or telephone number for a service representative. The machine checks if the communication with the peripherals is OK or NG; then displays the result. SP 5-993-4 must be enabled. The polygon motor speed is different between the 1200 dpi printing mode and other dpi printing modes. NOTE: If this mode is disabled, new unit detection also does not function. Use this mode as a temporary measure, only when the micro-switches are defective. Punch 1 US: 2 punch holes Europe: 2 punch holes North Europe: 4 punch holes Punch 2 US: 3 punch holes Europe: 4 punch holes Increment: Holes move toward the paper center.

If the amount of time required for the drum to revolve to print 1 copy increases, this data combined with the number of copies can be used to analyze problems and could be useful for future product development. Target revolution) ? 100, where “Current revolution” is the values of SP7803-18 through 27 and “Target revolution” is the fixed values. This shows how much of the unit’s expected lifetime has been used up. The R counter is based on rotations, not prints. This SP mode displays the “coverage ratio” of the output, i.e. the ratio of the total pixel area of the image data to the total printable area on the paper. Note that this value is not directly proportional to the amount of toner consumed, although of course it is one factor that affects this amount. Page 281 ENGINE SERVICE MODE SP8-XXX (Data Log 2) The counters in Data Log 2 are commonly used by multiple machines. Data Log 2 includes the counters of the functions or units that are not supported by the machine. The counters in Data Log 2 are cleared by SP5-801 (Memory Clear). Other application programs can magnify or reduce the print images on their own. Page 291 ENGINE SERVICE MODE 5.3. Page 292 ENGINE SERVICE MODE 5.3.3 INPUT CHECK TABLE When entering the Input Check mode, 8 digits display the result for a section. Each digit corresponds to a different device as shown in the table. Bit No.