Ricoh ap204 Service Manual ap206c

POMELO-P3 (G063)
SERVICE MANUAL
[Controller]
17 January, 2001 INSTALLATION

1. INSTALLATION

Refer to the following materials.
For options: Operating Instructions – Setup Guide
Installation
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17 January, 2001 PERIODIC MAINTENANCE

2. PERIODIC MAINTENANCE

Refer to Section 2. Periodic Maintenance in the G063 engine service manual.
Preventive
Maintenance
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17 January, 2001 REPLACEMENT AND ADJUSTMENT

3. REPLACEMENT AND ADJUSTMENT

3.1 CONTROLLER BOARD REPLACEMENT

G063R092.WMF
1. Remove the printer controller board [A] (2 screws).
The following must be done after changing the board.
Store the Printer ID (controller service mode S8)
Store the network printer name (user mode)
Do the gamma calibration (controller service mode S7)

3.2 REGISTRATION ADJUSTMENT

You can adjust the registration in the following three ways:
A. Controller’s user menu (Menu Maintenance 4. Registration);
refer to the operating instructions for more details B. Controller’s SP mode (S5. Registration) C. Engine SP mode (43 Margin Adjust)
[A]
Adjustment
Replacement
For tray 1, the leading edge and left side registrations can be adjusted either with engine SP mode 43 or with controller SP mode S5 (Registration).
For tray 2, leading edge and left side registrations can be adjusted with engine SP mode 43. The left side registration can also be adjusted with the controller user mode, and the leading edge registration can be adjusted with controller SP mode 5 (Registration).
For how to adjust the registration, refer to ‘5. Service Tables – 5.5.1. Adjusting the Leading Edge and Left Side Registrations’ in the engine service manual.
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REPLACEMENT AND ADJUSTMENT 17 January, 2001

3.3 IMAGE ADJUSTMENT

3.3.1 OVERVIEW

The table below lists the adjustable image parameters, with their corresponding adjustment procedures.
Item Procedure
Brightness, Contrast, Saturation, Color Balance
LD Power
Density
Development Bias
Transfer Bias
Service Gamma
In the Print Quality tab of the Windows printer properties, select the ‘Custom’ button and click ‘Setting’. A range of adjustments is displayed. The results of the adjustments are reflected in the image data processing by the driver and controller.
Use either the user menu [Menu] [Maintenance] [Toner Level] or engine SP mode 45-1 (LP Tune Up). You can adjust the power for each CMYK color within a range of -1 to +13 with the user menu and in ±4 steps in engine SP mode. (For the actual procedures, refer to the operating instructions and the engine service manual). See ‘5.Service tables – 5.1.4 SP Mode Details’ in this manual for the relationship between the settings in each of these modes.
The settings made for this item are transferred to the engine and stored in NVRAM on the MCTL board. Note that the customer is able to adjust this.
Use engine SP mode 45-3 (DBV Tune Up); refer to the engine service manual. You can adjust the bias for each CMYK color in ±4 steps. The settings made for this item are transferred to the engine and stored in NVRAM on the MCTL board.
Use either controller SP mode S4 (Transfer Bias) or engine SP mode 45-2 (THV Tune Up). You can adjust in ±4 steps for plain paper, OHPs, and labels. Use controller SP mode S7 (Gamma Calib.). You can adjust each color for both text and photograph modes. The results of the adjustment are reflected in the gamma correction done by the controller (see ‘3. Replacement and Adjustment –
3.3.2 Service Gamma Adjustment’ and 6. Detailed Descriptions – 6.1.2 Controller Gamma’ in this manual for more information on how the controller does this).
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17 January, 2001 REPLACEMENT AND ADJUSTMENT

3.3.2 SERVICE GAMMA ADJUSTMENT

NOTE: For problems related to color quality and gradation, clean the engine and
replace supplies and other parts at first. Use this mode only when the customer insists on further fine adjustments (e.g., matching colors between machines).
Adjustment Menu (Controller SP, S7. Gamma Calibration)
The menu items under Gamma Calibration in controller SP mode are organized as shown below. See “5. Service tables – 5.1.3 SP Mode Menu Hierarch,” in this manual for instructions on how to access the “S7. Gamma Calib. Color Correction” menu.
Layer 3 Layer 4 Layer 5 Layer 6
Load Setting
Print Setting Gamma Setting
Default Setting-Old Setting-Current 1 bit/PhotoMode Setting 1 bit/Text
Black
Cyan Same as above Same as above Magenta Same as above Same as above Yellow Same as above Same as above Save Settings
K/01th.[xxx] K/01th.=xxx/255
↓↓
K/15th.[xxx] K/15th.=xxx/255
(continued on the next page)
Adjustment
Replacement
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REPLACEMENT AND ADJUSTMENT 17 January, 2001
Adjustment Overview
To carry out this adjustment, select the print mode to adjust (text or photograph), then print out a color adjustment sheet. Make the gradation scales on the printout smooth from the lowest to the highest density. Adjust the CMY gradation scale at the top of the chart by balancing the density of the C, M, and Y gradation scales – the CMY gray scale should change smoothly from minimum to maximum, and there should be no coloration.
The color adjustment sheet is as follows.
[C]
[B]
[A]
G063R503.BMP
For each color, you can adjust 15 points (example [A]) between 0 (lowest density) [B] and 255 (highest density) [C]. For each point, you can adjust the density within 0 and 255.
The gradation scales marked ‘Default’ are printed according to the default gamma settings in the flash ROM in the controller. The gamma adjustment changes the densities at the adjustable points in the gradation scale. The gradation scale marked “Current” sho ws th e current settings.
During the adjustment procedure, compare the “Current” gradation scale with the ‘Default’. Select the density for each of the 15 adjustable points, excluding points 0 and 255, from the ‘Default’ gradation scale.
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17 January, 2001 REPLACEMENT AND ADJUSTMENT
The NVRAM holds three controller gamma settings, those saved this time (Setting­Current), those saved in the preceding adjustment (Setting-Old), and the factory settings (Default).
Adjustment Procedure
1. Select “Load Setting” and load the settings that will serve as the base for the adjustment.
2. Select “Mode Setting”, and select the print mode that you are going to adjust (text or photograph).
3. To review the image quality for these settings, choose “Print Setting” to print out a color adjustment sheet (Gamma Calibration at the top of the page).
4. Select “Gamma Setting”. Then select a color (K, C, Y, or M).
5. Adjust the color density at each of the 15 points. NOTE: To decide what density value to input, do the following.
1. Look at the color adjustment sheet.
2. For the color you are adjusting, look at the gradation scale entitled ‘Default’.
3. Go along the scale until you reach the density that you wish to input.
4. Read off the value on the scale and store it in the machine.
5. Do the same for all 15 points.
6. When the density setting is complete for all colors, print out a color adjustment sheet again and make sure that the gradation scale for each printed color is smooth and that the CMY gradation scale is gray. Repeat the adjustment if there is an anomaly (normally, repeat this procedure 3 to 5 times).
7. If the adjustment results prove satisfactory, do the following:
1) Execute “Save Settings”.
2) Reset the controller (press the [Reset] key when the machine is off line”) to
use the new settings.
NOTE: The new settings will not be saved in the controller NVRAM unless you
reset the controller.
Adjustment
Replacement
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REPLACEMENT AND ADJUSTMENT 17 January, 2001

3.3.3 SOFTWARE UPGRADE PROCEDURE

Required Tool
- IC card Adapter (G0319350)
- IC card containing new firmware
The controller, RICOH-SCRIPT2 and network interface boards have a flash ROM for storing control software. This allows version upgrades using an IC card.
NOTE: Before starting an upgrade procedure, make sure that the software in the
IC card is newer than the software in the controller, RICOH-SCRIPT2, or network interface board. To check, print out a configuration page (user mode).
Follow the procedure shown below to upgrade the software:
1. Turn off the machine, and then unplug all cables from the parallel interface board(s) and network interface board, if connected.
2. Install IC card into IC card adapter.
3. Remove the controller board. Then install the IC card adapter in either optional bus I/F slot 1 or slot 2.
4. Put the controller board back in the machine.
5. Turn on the machine. The machine automatically copies the firmware from the IC card to the appropriate flash ROM (controller, RICOH-SCRIPT2, or network interface board).
CAUTION: 1) Do not turn off the machine while the software is being updated.
Otherwise, the controller, NIB, or RICOH-SCRIPT2 module ma y be damaged.
2) Do not turn off the machine until at least 30 seconds after the message “OK!!OK!!” or “DOWNLOAD OK.” appears.
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17 January, 2001 REPLACEMENT AND ADJUSTMENT
For the controller or RICOH-SCRIPT2:
The LCD display on the operation panel changes as shown below as the rewrite procedure proceeds. (‘MELT’ is displayed during the software upgrade for RICOH-SCRIPT2 since it involves a decompression process.)
(MELT ->) ERASE -> WRITE -> VERIFY -> OK!!OK!!
The appearance of the message “OK!!OK!!” indicates that the controller has received the data from the IC card. However, note that it takes about 30 seconds to rewrite the data in the controller or RICOH-SCRIPT2 after this message is displayed. The message NG!!NG!!” is displayed if an error occurs during the rewrite process. If this condition occurs, reinstall the IC card and turn the power off and on again.
For the network interface board:
The appearance of the message “DOWNLOAD OK.” indicates that the controller has received the data from the IC card. However, note that it takes about 30 seconds to rewrite the data in the network interface board after this message is displayed.
Adjustment
Replacement
DOWNLOAD -> ############ -> DOWNLOAD OK.
The message “DOWNLOAD NG.” is displayed if an error occurs during the rewrite process. If this condition occurs, reinstall the IC card and turn the power off and on again.
4. When the rewrite ends, turn off the main unit, reset all DIP switches to OFF, and remove the IC card.
5. Replace the IC card cover. Turn the power on again and print the user mode
configuration page.
6. Check the new software version and make sure that it matches the version on
the IC card.
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17 January, 2001 TROUBLESHOOTING

4. TROUBLESHOOTING

4.1 TYPES OF PROBLEMS

The problems can be classified as follows.
Printer-side Print Settings
Operation
Hardware
Printer-side Initial Settings
Host-side Application Settings
Faulty Engine
Faulty Controller
Hardware Limitations
Main Unit
Option
Consumables Main Unit
Option
Software
Operating conditions
Bug in Controller ROM
Bug in Emulation Module Software Controller Limitations
Bug in Host-side Application
Host-side Application Limitations
Environment (power, temperature and humidity,
dust, noise, vibration)
Consumables
G063T500.WMF
Trouble-
shooting
4-1
TROUBLESHOOTING 17 January, 2001

4.2 TROUBLESHOOTING PROCEDURE

4.2.1 HARDWARE TESTS

1. Power-up self-diagnostics
Turn on the power and check that an error code is not displayed. After the system starts, check for error messages on the configuration page that is automatically printed.
2. Detailed diagnostic test
See “4.Service Tables - Detailed Self-diagnostics Mode” in this manual for the procedure.
3. Checking the configuration page output.
Print out from the user menu: [Menu] [List Print] [Config. Page]. If error messages are included, check the relevant part of the machine and replace any defective components.
4. Connectivity test
Make a test print from a computer.
Check that the correct cable is used (and connected properly).
Check the cable continuity.
Check the cable length (is it too long?).
Do not connect the printer to the computer through a printer selector switch
– connect the printer to the computer directly.
If the optional parallel interface is installed, connect the computer to the parallel interface board that is being tested.

4.2.2 OPERATION-RELATED TESTS

Check the print conditions and initial settings. Check the printer settings against the application settings. Check whether the
current settings match the settings on the configuration page that the customer keeps.
NOTE: Ask the customer to print a configuration page at some time when the
controller is working normally, and keep it for reference.
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17 January, 2001 TROUBLESHOOTING

4.2.3 SOFTWARE-RELATED TESTS

Obtain information about the following:
PC model
OS type and version
Configuration page
Application software used, and the version
Data file being printed when the problem occurred (if obtainable)
RICOH-SCRIPT2 data file when the problem occurred
Sample printouts when the error occurred and when the printer is normal
Detailed operating procedure
Controller system and emulation module version
Firmware versions (engine, controller, NIB)
Trouble-
shooting
4-3
TROUBLESHOOTING 17 January, 2001

4.3 ERROR MESSAGES

4.3.1 OVERVIEW

The error messages that this unit can issue are classified as follows:
1. Controller Self -diagnostics Errors Errors detected while the unit performs power-up self-diagnostics/detailed self­diagnostics on the controller hardware.
2. Controller User Errors Errors caused because the controller software cannot process the job because of, for example, insufficient memory.
3. Internal Errors Errors caused because the controller’s control function fails to function normally.
4. Engine User Errors (Cautionary) Errors that do not require user intervention to continue printing (the printer can still communicate with the PC over the interface). However, for the best printing quality, the user should correct the problem as soon as possible.
5. Engine User Errors Severe errors that cause the unit to stop printing, requiring the user to fix the problem before printing again.
6. Engine Service Codes (SCs) Severe errors that cause the unit to stop printing, requiring a technician to fix the problem before printing again.
Only one error message can be displayed at once. There is an order of priority for displaying the errors. This is as follows, starting with the highest priority: Internal Errors, Controller Se lf-diagnostics Errors, En gine Service Codes (SCs), Engine User Errors, Engine User Errors (Cautionary), Controller User Errors.
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17 January, 2001 TROUBLESHOOTING

4.3.2 CONTROLLER SELF-DIAGNOSTICS ERRORS

When a contro ller self-diagnostics error occurs, the error code is displayed on the first line of the operation panel LCD.
The second line contains an 8-digit code that gives details of the error for designers to debug the error. For a memory error, the second line of the LCD indicates the address in which the error occurred. For errors other than memory errors, the second line always reads “FFFFFFFF”.
Code Description Location
00XX Exception processing error Controller
0101 Flash ROM sum check error Controller 0201 Standard memory read/write error Controller
0301/0401 Optional memory read/writ e error
Non-fatal error (printed as B0 in the error log.)
060X CPU exception self-diagnostics error Controller 0D0X ASIC timer error Controller 0F0X ASIC engine interface error MCTL/Controller 11XX ASIC Centronics interface error
Non-fatal error (printed as B1 in the error
log.) 1401 NVRAM error Controller 1601 Font ROM error Controller 170X IC card error
1703 represents a non-fatal error (printe d as
B4 in the error log.)
1B0X Optional Interface 1 Error Controller 1C0X Optional Interface 2 Error Controller 1D0X Optional par allel interface board
Non-fatal error (printed as B6 in the error
log.) 250X Optional emulation module error
Non-fatal error (printed as B5 in the error
log.) 400X FPU error Controller 450X ASIC compression/decompression error Controller
Optional memory
Controller
IC card/Controller
Optional paralle l int e rface board
Emulation module/Contr oller
Trouble-
shooting
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TROUBLESHOOTING 17 January, 2001

4.3.3 CONTROLLER USER ERRORS

Display Description Location/action
85: Error 86: Error 91: Error 94: Error
A3: Error A6: Error Overflow during compression Install additional memory. A7: Error
A8: Error
AB: Error Print overrun Install additional memory. B0: Error B1: Error Standard parallel interface err or Interface cable/controller
B3: Error
B4: Error IC card slot error Controller/IC card B5: Error
B6: Error B7: Error
Graphics environment i nit ialization error
Invalid control code paramet er Incorrect printer driver or Font/image environ me nt initialization
error Download data error Incorrect ‘total memory size’
Receive buffer overflow Increase the I/O buffer size
Error during drawing processing
Error during library drawing Switch the machine off/on. If
Optional memory error Reinstall/replace optional
Invalid initial setup setting Reset the printer settings using
Optional emulation mo dule error Reset/replace emulat ion Optional parallel int e rface board
error Optional network interface board
error
Optional memory/Controller
incorrect cable installed Install additional memory.
setting in the driver using the system menu (user
mode)
Use a smaller font size or a less complex font, or replace the controller
that does not work, replace the controller.
memory.
‘Menu reset’ in the Maintenance menu (user mode).
module. Reset/replace optional parallel
interface board Reinstall/replace net w ork
interface board
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17 January, 2001 TROUBLESHOOTING

4.3.4 INTERNAL ERRORS

When an internal error occurs, the message “Err Power Off/On” is displayed on the first line of the operation panel LCD. The internal error code is on the second line in the format “Error XXYY-ZZZZZZZZ” (“XX” denotes a classification code; “YY” denotes a process number, and “ZZZZZZZZ” indicates the program address where the error occurred).
The classification code portions (XX) and their descriptions are shown below. The “YY” and “ZZZZZZZZ” portions are for designer use only (for debugging).
Code (XX) Description
00 Error in the TLB user area. 01 CPU TLB update exception 02 CPU mis match exception (load or fetch) 03 CPU mis match exception (store) 04 CPU addres s error exception (load or fetch)
05 06 CPU bus error exc ept i on (load or fetch)
07 CPU bus error exc ept i on (st ore) 08 CPU sy stem call exception 09 CPU break point exception 10 CPU reserv ed instruction exception 11 CPU coproc essor disabled exception 12 CPU operati on overflow exception 13 CPU trap exception 14 Coherency (instruction) error 15 CPU float ing-point operation exception 16 CPU timer interrupt 17 EAGLE level 4 interrupt (ART or Tim) 18 EAGLE level 3 interrupt (CP) 19 EAGLE level 2 interrupt (XINT1 or XINT0) 20 EAGLE level 1 interrupt (CBE, DBE, Dtc0, Verr, F in, Vdtc, Fout) 21 EAGLE level 0 interrupt (Debug) 22 Software interrupt 23 Software interrupt 24 Other CPU exceptions 25 Memory allocation error 26 Overflow error 27 Frame allocation error 28 Card eject error 29 Printer engine error 30 Option board error 31 Session-to-net w ork interface board communications error
CPU address error exception (store)
Trouble-
shooting
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TROUBLESHOOTING 17 January, 2001

4.3.5 ENGINE USER ERRORS (CAUTIONARY)

The unit can continue printing even when one of the messages listed below is encountered.
Display Description
Low on: XXX Toner near end
XXX denotes the color name (CMYK or their combination).
Chg. Cleaner Fusing cleaner replacement
time arrived Fusing Oil Fusing oil near end 30 Change PCU Photoconductor unit
replacement time arrived Change 120K 120k maintenan ce requested Information only Change Fuser
Fusing unit replacement time
arrived.
Number of sheets until warning
500 at a 5% image ratio (300 sheets for Black).
1,000 at a 5% image ratio
Information only
Information only
state
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17 January, 2001 TROUBLESHOOTING

4.3.6 ENGINE USER ERRORS

The unit can no longer continue printing when one of the following messages is displayed:
Display Description
Add Toner XXX Toner end (XXX: Cyan, magenta, yellow, or black) Waste Toner is
Full Fusing Oil Fusing oil end Paper Size Error Paper size error Change Fuser
Cleaner Paper Type Error Media mismatch Load YYY tray
XXX Reset Paper Tray
Correctly Close Top Cover Paper exit cover open Close Front Cover Front cover open Reset XXX Toner
Correctly Close Rear Cover Rear cover open Reset Fusing Unit
Correctly Reset PCU
Correctly Reset Cleaning
Roller Correc tly Remove Misfeed
from Tray XXX
Waste toner bottle full
Fusing cleaner needs replacement.
Paper end (XXX denotes a tray name and YYY a paper size.)
No tray
No toner cartridge (XXX denotes a color name.)
No fusing unit
No photoconductor unit
No fusing cleaner
Paper jammed
Trouble-
shooting
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TROUBLESHOOTING 17 January, 2001

4.3.7 ENGINE SERVICE CODES

When an engine service call (SC) erro r occurs, an error me ssage is displayed on the operation panel LCD in the format “Call Service SC: XX” where XX denotes an error code. The engine SC error codes and their descriptions are shown below.
For the troubleshooting procedures, refer to the engine service manual.
Display Description
SC: EC
SC: 22 SC: 23 SC: 24 SC: 25 SC: 31 SC: 33 SC: 34 SC: 35 SC: 41 SC: 42 SC: 43 SC: 44 SC: 45 SC: 51 SC: 52 SC: 53 SC: 54 SC: 55 SC: 61 SC: 62 SC: 63 SC: 64 SC: 65 SC: 66 SC: 71 SC: 72 SC: 73 SC: 74 SC: 75 SC: 76 SC: 81 SC: 83 SC: 84 SC: 85 SC: 86
Engine communication error Development motor error Main motor error Polygon mirror motor error Charge corona voltage (CHV) error Fusing thermistor error Fusing temperature error (warming-up time error) Fusing temperature error (temperature too low) Fusing temperature error (temperature too high) Beam sensor error Laser power error NVRAM error (MCTL) Engine controller MCTL hardware error Process timing clock error (main motor clock error) Quenching lamp error Toner end sensor error Control fan error Ozone fan error Fusing fan error Yellow development clutch error Magenta development clutch error Cyan development clutch error Black development clutch error HPSI signal error (retraction error for the black and yellow toner cartridges) HPSI signal error (retraction error for the cyan and magenta toner cartridges) Transfer drum rotational error Transfer roller contact solenoid error Cleaner contact solenoid error Cleaner clutch error Fusing unit clutch error Belt sensor error Duplex unit controller error Duplex unit lower solenoid error Duplex unit motor error Duplex unit upper solenoid error Duplex unit fan motor error
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17 January, 2001 SERVICE TABLES

5. SERVICE TABLES

5.1 SP MODES

5.1.1 OVERVIEW

The printer has two types of SP modes:
1. Engine SP modes
2. Controller SP modes
This section deals with controller SP modes.

5.1.2 ENGINE SP MODE

Refer to the service manual for the engine for how enter engine SP mode and use the engine SP modes.

5.1.3 CONTROLLER SP MODE

Entering and Exiting Controller SP Mode
[A]
[B]
Power
Error
Media
G063S000
On Line
EscapeMenu
Enter
#
Data in
Reset
[A]
[B]
#
G063S001
To enter controller SP mode: Turn on the printer while holding down the [On Line] [A] and [Reset] [B] keys on the operator panel. Hold the keys down until all
of the LEDs and the LCD turn on. Then after the printer completes its cycling, press the [Menu] key.
Tables
Service
To exit controller SP mode: Turn the main switch off and, after a brief period,
back on. NOTE: When accessing controller SP mode, “SP” is displayed in the upper right
corner of the display. Do not forget to exit SP mode after servicing. If inadequately left in controller SP mode, users could change settings or clear all settings by accident.
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SERVICE TABLES 17 January, 2001
SP Mode Menu Hierarchy
The table below shows the controller SP mode menu hierarchy. The individual layers in the table below can be accessed in the controller SP mode by pressing the [Enter] key. When in SP mode, S1 to Sa are added to the Maintenance menu.
Layer 1 Layer 2 Layer 3 Layer 4
Maintenance
1.Toner Level Cyan Magenta Yellow Black
2.Reinstall Fuser Cleaner Photoconductor Unit
3.Menu Reset
4. Registration L:Tray 2
5. Menu Protect Off On
S1.Maint. Page S2.Color Chart S3.Maint. Clear Fusing Unit
120k
S4.Transfer Bias Plain paper
Thick paper OHP paper
S5.Registration W:Tray 1/2
L:Tray 1
S6.Clear All Memo S7.Gamma Calib. Load Setting Default
Mode Setting 1 bit/Photo
Print Setting Gamma Setting Black
S8.Printer ID S9 Toner Limiter Text
Photograph
Sa Meter Click Off
Print/Jam Develop. Count Print Count
It can also be accessed if the [Enter], [Escape], and [Menu] key s ar e pressed in sequence when the printer is on line.
Setting-Old Setting-Current
1 bit/Text
Cyan Magenta Yellow Save Settings
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17 January, 2001 SERVICE TABLES

5.1.4 SP MODE DETAILS

S1. Maintenance Page
The table below explains the contents of the engine maintenance list printout. The controller obtains the data from the engine (MCTL).
Item Description
MCTL firmware
Registration setting
Toner density setting
Total counter Indicates the total number of printouts and the total number of toner images
Maintenance counter
The MCTL board firmware version number.
For tray 1, the leading edge and left side registrations can be adjusted either with engine SP mode 43 (Margin Adjust) or with controller SP mode 5 (Registration). For tray 2, the leading edge and left side registrations can be adjusted with engine SP mode 43 (Margin Adjust). The left side registration can also be adjusted with a controller user mode (Registration Adjustment), and the leading edge registration can be adjusted with controller SP mode 5 (Registration). For how to use this adjustment, see ‘5.Service Tables – 5.5.1 Adjusting the Leading Edge and Left Side Registrations’ in the engine service manual. The registration values can be adjusted in 0.5 mm increments in either the controller or the engine SP mode. Whichever mode is used, the settings are stored in the NVRAM on the MCTL.
Indicates the following:
LD power setting for each toner color (CMYK) Transfer roller voltages for plain paper, thick paper, and OHPs
Development bias for each toner cartridge (CMYK) These values can all be adjusted with engine SP mode. LD power can also be changed with the user menu (Density Setup) and the transfer bias values can be changed in controller SP mode (S4. Transfer Bias). See the explanation after this table for more about this part of the printout.
made in each of the CMYK toners. The counter is incremented when the paper exit sensor detects the completion of paper exit (regardless of paper size, type, and mono/color mode).
Indicates the following for the fusing cleaning roller, fusing unit, and 120k maintenance parts:
Next life limit counter (expected number of prints remaining) Current value of the total counter Lifetime of the part (fixed), divided by 100 to get a % value on the report Amount of expected life time remaining
Indicates the following for the belt cartridge:
Next life limit counter (expected number of images remaining) Sum of the current values of the CMYK image counters Lifetime of the part (fixed), divided by 100
Amount of expected life time remaining The formula used is as follows: (Next Life Limit - Total Counter)/Life Period = Life remaining (%) The values of the next life limit counters, except for 120k maintenance, vary according to the image ratio or the job sizes during the life of the part. For
details, see ‘5.Service Tables – 5.5.3 Setting the Next Life Limit Value’ in the engine service manual.
Tables
Service
Meter Click The selected Meter Click mode is shown. SC Logging The latest 6 SC codes are shown.
The codes in square brackets are internal engine error codes.
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SERVICE TABLES 17 January, 2001
Item Description
Jam Logging The latest 6 jam codes are shown.
00: No Error (Initial stored data) 01: Entrance 02: Internal 03: Around the transfer drum 04: Exit 05: Duplex (Upper) 06: Duplex (Lower)
Toner density setting
The displayed value of the laser power when it is set in engine SP mode differs from when it is set from the user menu. Both values are included in the printout, as shown below. The following is an example for cyan (C).
C (Laser Power: SP [Usr]) +1 [08]
Value displayed in engine SP mode
Value displayed in user mode
The table below compares the density settings that are set from the user menu (“Toner level”) with those set in engine SP mode.
As seen from the table, finer adjustments are possible with user mode.
User Mode
Display Value
-1 -4 0-3 1-3 2-2 3-2 4-1 5-1 60 70
8* 1*
91
10 2 11 2 12 3 13 4
Engine SP
Mode Display
Value
*: Default setting
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17 January, 2001 SERVICE TABLES
S2. Color Chart
This prints a color test chart, so that the image quality can be tested for all colors at various densities. This chart can be printed on all paper sizes supported by the machine (the layout of the print pattern varies from paper size to paper size).
S3. Maintenance Clear
This mode resets the maintenance counters for the fusing unit replacement or 120k maintenance parts (these counters are in the NVRAM on the MCTL board). Use it after doing the PM required for these units. See ‘4.Service Tables – Setting the Next Life Limit Value’ in the engine service manual for information about how to use this SP mode.
S4. Transfer Bias
This mode adjusts the transfer roller voltages used for the three paper types (plain paper, thick paper and OHP transparency) supported by this unit. For each paper type, you can set the value in 4 increments. The settings are stored in the NVRAM on the MCTL board.
Default value: 0
S5. Registration
This mode adjusts the leading edge registration for trays 1 and 2 and the left side registration for tray 1. You can set each value in ±7 increments (1 step = 0.5 mm). The values are stored in the NVRAM on the MCTL board. See ‘4.Service Tables – Adjusting the Leading Edge and Left Side Registrations’ in the engine service manual for information about how to use this SP mode.
NOTE: Engine service mode 43 (Margin Adjust) can be used to adjust all of the
registrations, whereas controller SP mode S5 can only adjust a few of them.
S6. Clear All Memory
Executing this function resets the following user settings, stored in the NVRAM on the controller, to their initial values:
Emulation/system initial setup items
Printer ID
Printer name on the network
Gamma calibration
The “Menu Reset” clear function in the user menu only resets the emulation/system initial setup items to their initial values.
Tables
Service
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SERVICE TABLES 17 January, 2001
S7. Gamma Calibration
This mode adjusts the gamma tables used in text and photograph modes.
NOTE: For problems with color quality and gradation, clean the engine and
replace consumables and other parts at first. Use this mode only when the customer insists on further fine adjustments (e.g., matching colors between machines)
See “3. Replacement and Adjustment – 3.3.2 Service Gamma Adjustment” in this manual for the adjustment procedure.
S8. Printer ID
The printer ID allows the RICOH-SCRIPT2 emulation module to identify the printer main unit. It is programmed in the NVRAM on the controller at the factory.
When replacing the controller, it is necessary to use this SP mode to re-input the printer ID since the printer ID for the old controller is required.
Follow the procedure given below to input the printer ID:
1. Select the first digit using the [!!!!] and [""""] keys.
2. Input the number by pressing the [Enter] key (you can use the [Escape] key to cancel the setting if you input an incorrect number).
3. Repeat these steps until the last digit is entered. Pressing the [Enter] key on the last digit returns you to the “S8. Printer ID” menu.
4. Print a configuration page and verify that the correct printer ID is defined.
5. Turn the power off and on again to exit SP mode.
S9. Toner Limiter
The maximum toner values can be adjusted from 100 to 400% for both Text and Photo Modes. The default value for both is 250%.
If this value is set high, the printed image appears more true to the original data. However, since a greater amount of toner is used, it is easy to scatter the toner around lines and text areas. If the value is set low, the color balance of low-density areas varies, however toner does not scatter as easily.
5-6
17 January, 2001 SERVICE TABLES
Sa Meter Click
In this mode, the counting method can be selected depending on the type of service contract.
When meter click mode is activa ted, the machine is affected as follows:
1. A new user mode, “Show Counter” displays the counter values.
2. The printer will stop printing when toner has run out. In addition, “Toner Empty” disappears from the Maintenance menu.
3. The configuration sheet includes the value for the counting method selected in Meter Click mode, not the total counter value. Both counter values are included in the engine maintenance sheet.
4. After selecting meter click mode, the counter value for the selected counting method is automatically set to 0. However, it cannot be reset to 0 after the machine begins counting.
5. All developments/prints are counted at paper exit.
6. Counting method:
1) By developments
B/W Image
Color Counter +1 +2 +3 +3 Black Counter +1 +1
1C image 2C image 3C image Full color
2) By prints
B/W Image
Color Counter +1 +1 +1 +1 Black Counter +1
1C image 2C image 3C image Full color
7. The following are not counted:
1) The final page when printing an odd number of pages in duplex mode.
2) The engine maintenance sheet, color chart and gamma calibration sheets in
controller SP mode.
3) All sheets printed out in engine SP mode.
4) The Low-Memory Error Sheet.
5) A list of settings (B/W) if a non-fatal error is detected during Self-Diagnostics.
Tables
Service
5-7
SERVICE TABLES 17 January, 2001

5.2 DETAILED SELF-DIAGNOSTICS MODE

Overview
In this mode, the controller tests components that are not tested during the power­up self-diagnostics. These are the memory, standard parallel interface, and options (optional interfaces, Memory slot and DIMM slot), if the devices are installed.
The following special tools are required to execute this mode:
Parallel Interface Loopback Connector
Part No. Type of Interface Remarks
G0219350 For the standard parallel
interface board
G0109350 For the optional parallel
interface board
NOTE: A decal with the part number is attached to each connector, to avoid
confusing the two types.
If not used, the controller continues t he test to the end, but flags a non-fatal error.
If an interface board is inst alled but the loopback connector is not, the cont roller continues the test to the end, but fl ags a non-fatal error.
Operating Procedure
[A]
Power
Error
On Line
EscapeMenu
[A]
Data in
Reset
[B]
[B]
#
Media
G063S000.WMF
Enter
#
G063S001.WMF
To enter the detailed self-diagnostics mode, make sure that the devices that you wish to test are installed. Then do the following.
1. Switch off the power.
2. Connect the loopback connector to the parallel port. If the optional additional
parallel interface has been installed, connect the loopback connector for this port also.
3. Turn on the power while simultaneously pressing and holding down the [On
Line] [A] and [Enter] [B] keys on the operation panel. Hold the keys down until all of the LEDs and the LCD turn on.
5-8
17 January, 2001 SERVICE TABLES
Operation Panel Behaviour during Detailed Self-diagnostics
Immediately after power is turned on
The controller turns on all LEDs and the LCD.
During detailed self-diagnostics
When the controller starts the self-diagnostics, it turns off all LEDs except the Power LED and causes the Power LED to blink. It displays the message “Service diag” on the LCD.
When the tests terminate normally
When an error does not occur during the self-diagnostic test, the controller causes the blinking Power LED to stay on and turns off all the other LEDs and the LCD. The controller starts the system immediately afterward and prints out a list of settings in color mode.
When an error is detected
Errors are divided broadly into non-fatal errors and fatal errors. The controller takes different actions and gives different status information for different types of errors.
When a non-fatal error (user error) is detected
The controller turns the blinking Power LED on, turns off all of the other LEDs and the LCD, and restores the standby display. Since non-fatal errors do not adversely influence any print operation, the controller starts the system immediately after it takes these actions.
The system turns on the Error LED and prints out a list of settings with error descriptions in monochrome mode (see 4. Troubleshooting – 4.3.3 Controller User Errors in this manual for the error codes).
After printing a list of settings, the system returns to the normal state and sets up all devices except the failed device.
When a fatal error is detected
Since there is no guarantee that the system can generate a list of settings after detecting a fatal error, the system turns off the Power LED and turns on the Error LED. At the same time, it displays an error message on the LCD until the power turns off.
The first line of the LCD contains a 4-digit code that identifies the error and the second line contains an 8-digit code that gives details of the error for designers to debug the error (see 4. Troubleshooting – 4.3.2 Controller Self-diagnostics Errors in this manual for a description of the error codes).
Tables
Service
5-9
SERVICE TABLES 17 January, 2001
Detailed Self-diagnostics Flow Chart
Turn On Power
Code ROM sum check
Tests the timer functions of the EAGLE 2
Read/write test
Operation test
Tests the engine interface functions of the EAGLE 2 and KOTO; makes a loopback test on the standard Centronics interface
Read/write test
Code ROM sum check
IC card sum check (if card is installed)
Test Code ROM
Test Timer
Test Memory
Test CPU
Test ASIC
Test NV-RAM
Test Font ROM
IC Card installed?
Yes
Test IC Card
Fatal Error Detected
Fatal Error Detected
Fatal Error Detected
Fatal Error Detected
Fatal Error Detected
Display error on panel
No
DIMM (emulation module) sum check
Optional parallel interface board loopback test (if board is installed)
Yes
Test DIMM
Optional Parallel
I/F installed?
Yes
Test Optional Parallel I/F
Start System
Generate list of
settings
No
G063M503.WMF
5-10
17 January, 2001 SERVICE TABLES
Test Results Printout when No Fatal Errors Occur
If a non-fatal error occurred, the report is printed in black and white. The “Error Log” section at the bottom of the printout explains the non-fatal errors that occurred.
If no error occurred, the report is printed in color. The “Error Log” section contains “None”.
The right side of the sample printout contains gradation patterns in the following colors, from the top, C, M, Y, K, R, G, B, and CMY.

5.3 BRAND SETTING

Operating Procedure
Power
Error
On Line
Data in
Reset
[C]
[B]
EscapeMenu
[A]
#
Media
G063S000
Enter
#
G063S001
1. Press the [!!!!][A], [""""] [B], and [Menu] [C] keys sequentially.
2. Select “S1. Brand” in the Maintenance menu.
Layer 1 Layer 2 Layer 3 Layer 4
Maintenance S1.Brand RICOH JPN
RICOH EXP(Default) SAVIN Gestetner NRG
[C]
[B]
[A]
Tables
Service
3. Press the [Reset] key to reboot the machine.
5-11
17 January, 2001 FUNCTIONAL OVERVIEW

6. DETAILED DESCRIPTIONS

6.1 FUNCTIONAL OVERVIEW

6.1.1 PRINT DATA PROCESSING

The diagram below shows the print data processing path. The boxes in the diagram represent function blocks and the text next to the arrows indicates the data type. The diagram is followed by a brief description of color processing by the printer driver.
IPDL-C Driver
BG/UCR
CMYK 8bit
Gamma
Correction
CMYK 8bit
Maximum
Toner Control
Dithering
CMYK 1/2bit
Amount
CMS
Controller
CMYK 8bit
Gamma
Correction
Table
Maximum
Amount Value
(for service)
1/2bit
Text/Photo
Dither
PS Driver
RGB 8bit CMYK 8bitRGB 8bit
RPS2 Module
(including CMS)
BG/UCR
Manual Gamma
Correction
Detailed
Descriptions
MCU
Printer Engine
Operation Panel
G063D500.WMF
NOTE: 1-bit color for 600 x 600 dpi printing and 2-bit color for 1200 x 600 dpi
mode printing
6-1
FUNCTIONAL OVERVIEW 17 January, 2001
CMS (Color Management System)
CMS adjusts the RGB values of the colors in the application data in preparation for RGB to CMYK conversion, which is done in the controller.
A file known as a ‘profile’ (filename extension ‘prf’) is automatically installed in the \windows\system\ folder during printer driver installation. This file contains instructions for CMS on how to convert the colors in the print data produced by the application.
CMS is used whenever the color correction setting in the printer driver is set to any value other than “Off”.
Color Adjustment by the Driver
The driver adjusts the following parameters in accordance with the driver settings made by the user: Brightness, Contrast, Saturation, and Color Balance.
The driver does not perform RGB to CMYK color conversion.
Color Conversion, Gamma Conversion, and Dithering by the Controller
The controller performs gamma conversion (see Gamma Correction), RGB-to­CMYK conversion, and dithering.

6.1.2 GAMMA CORRECTION

Gamma correction in this model has two components: controller gamma (non­adjustable) and service gamma (adjustable).
Controller gamma
This gamma is programmed into the flash ROM in the controller. If there has been no service gamma adjustment in the machine so far since installation, the controller gamma is the only gamma that is used (i.e., service gamma = 0).
Service gamma
This gamma is stored in the NVRAM in the controller. It can be adjusted using controller SP mode (S7. Gamma Calibration). See “3. Replacement and Adjustment – 3.3.2 Service Gamma Adjustment” in this manual for the adjustment procedure.
The controller combines the service gamma (the default setting is zero) with the controller gamma when doing gamma correction.
6-2
17 January, 2001 FUNCTIONAL DESCRIPTION

6.2 FUNCTIONAL DESCRIPTION

6.2.1 CONTROLLER LAYOUT

VIDEO I/F
DIP SW
ASIC
KOTO
CPU
RM5261
Optional Memory I/F
Optional BUS I/F 1 Optional BUS I/F 2
ASIC
EAGLE 2
Flash
Font ROM
NVRAM
Detailed
Descriptions
IEEE 1284 I/F
6-3
G063D501.WMF
FUNCTIONAL DESCRIPTION 17 January, 2001

6.2.2 FUNCTIONS OF COMPONENTS

Device Function
CPU RM5261-250 ASIC EAGLE 2 This ASIC controls the following:
Memory mapping
Reset
DRAM
Data received from the parallel
Video DMA
PvDMA
Interrupt
Serial communication with engine
IEEE1284 interface
Timer
I/O Port
ASIC KOTO Video da t a interface FLASH ROM Stores program (2 MB) The flash ROM is programmable via an IC
card.
NVRAM FONT ROM Stores internal printer fonts. Program ROM RICOH-SCRIPT2 Emulat ion Modul e DIP SW
Stores the initial settings and printer parameters. (8 KB EEPROM)
(One 64-Mbit mask ROM) The emulation module is progra mmable by IC card.
1234
5678
OFF
G063C004.WMF
SW No. Setting Content
1OFF 2ON
3-8 OFF
Set this switch ON when downloading MCTL firmware. Do not touch these switches in the field.
Video I/F Interface the controller with the pr int er engine. IEEE1284 I/F Provides an interface that connects to a local host (IEEE1284
compliant).
Option Bus I/F
Two slots; each can hold either an optional network interface or a parallel interface board. You cannot install two boards of the same type.
IC card adapter for downloading the Controller and MCTM firmware.
Option RAM I/F A slot for accommodating the memory.
6-4
17 January, 2001 POWER-UP SELF-DIAGNOSTICS

6.3 POWER-UP SELF-DIAGNOSTICS

6.3.1 OPERATION PANEL DISPLAY DURING POWER-UP SELF­DIAGNOSTICS
The controller starts power-up self-diagnostic tests when the printer power is turned on. It shows the test status on the panel as the self-diagnostics proceed.
Immediately after turning the power on
The controller turns on all LEDs and the LCD.
During power-up self-diagnostics
When the controller starts the self-diagnostics, it turns off all LEDs except the Power LED, which it causes to blink. It displays the message “Warming UP” on the first line of the LCD.
If the test terminates normally
If an error is not detected during the self-diagnostic test, the controller turns the blinking Power LED on and turns off all the other LEDs and the LCD. The controller starts the system immediately afterwards.
If an error is detected
Errors are divided broadly into fatal and non-fatal (user) errors. The controller takes different actions and gives different status information for different types of errors.
See section 4 (Troubleshooting) for tables o f the di ffer ent ty pes of err ors .
Detailed
Descriptions
6-5
POWER-UP SELF-DIAGNOSTICS 17 January, 2001
Non-fatal error (user error) detected
The controller causes the blinking Power LED to stay on, turns off all of the other LEDs and the LCD, and restores the standby display state. Since non-fatal errors do not adversely affect any print operation, the controller starts the system immediately after it takes these actions.
The system turns on the Error LED and prints out a list of settings with error descriptions, in monochrome mode (see section 4 Troubleshooting – 4.3.3. Controller User Errors in this manual for the error codes).
After printing the above list of settings, the system returns to the normal state and enables all devices except the failed device.
Fatal error detected
Since there is no guarantee that the system can generate a list of settings when the error detected is fatal, the system turns off the Power LED and turns on the Error LED. At the same time, it displays and keeps an error message on the LCD until the power is turned off.
The first line of the LCD contains a 4-digit code that identifies the error. (see section 4 Troubleshooting – 4.3.2 Controller Self-diagnostics Errors in this manual for a description of the error codes).
6-6
17 January, 2001 POWER-UP SELF-DIAGNOSTICS FLOW CHART

6.4 POWER-UP SELF-DIAGNOSTICS FLOW CHART

Turn on power
Fatal Error
Code ROM sum check
Tests the timer functions of the EAGLE 2
Operation check
Tests the engine interface functions of the EAGLE 2 and KOTO
Font ROM sum check
Test Code ROM
Test Timer
Test CPU
Test ASIC
Test Font ROM
Detected
Fatal Error Detected
Fatal Error Detected
Fatal Error Detected
Fatal Error Detected
IC card sum check, if IC card is installed
IC card installed?
YES
Test IC card
YES
Test DIMM
Non-fatal Error
(user error)?
YES
Start System
Generate List of
Settings
NO
NO
Display Error on
Panel
Detailed
Descriptions
Start System
6-7
G063M057.WMF
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