Ricoh AFICIO 200 Service Manual ADFAX

FAX UNIT

(Machine Code: A639)

July 31st, 1996 Subject to change

Table of Contents

OVERALL MACHINE INFORMATION

1.SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

2.FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2.1FEATURES LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2.2CAPABILITIES OF PROGRAMMABLE ITEMS. . . . . . . . . . . . . . . . . . . . . . . . . 1-5

2.3POSSIBLE COMBINATIONS OF OPTIONAL IC CARDS. . . . . . . . . . . . . . . . . 1-6

3.OVERALL MACHINE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3.1SYSTEM CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3.2POWER DISTRIBUTION AND CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

3.3MEMORY BACK-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

4.VIDEO DATA PATH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

4.1TRANSMISSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

4.2RECEPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

DETAILED SECTION DESCRIPTIONS

1.AUTOMATIC SERVICE CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

1.1SERVICE CALL CONDITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

1.2PERIODIC SERVICE CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

1.3PM CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

1.4EFFECTIVE TERM OF SERVICE CALLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2.PARALLEL MEMORY TRANSMISSION . . . . . . . . . . . . . . . . . . . . . 2-4

3.TRANSFER BROADCASTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

4.ORIGINAL SCAN PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

4.1MAIN SCAN DIRECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

4.2SUB SCAN DIRECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

5.PAGE SPLIT TRANSMISSION (BOOK TRANSMISSION) . . . . . . 2-10

6.IMAGE ROTATION BEFORE TRANSMISSION . . . . . . . . . . . . . . . 2-11

7.SMOOTHING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

8.PAPER SIZE SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

8.1WIDTH PRIORITY AND LENGTH PRIORITY. . . . . . . . . . . . . . . . . . . . . . . . . 2-13

8.2IMAGE ROTATION BEFORE PRINTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

8.3SUB SCAN REDUCTION AND PAGE SEPARATION. . . . . . . . . . . . . . . . . . 2-14

8.4PAGE REDUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

8.5TWO IN ONE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

8.6PAPER SIZE SELECTION PRIORITIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

9.TWO-SIDED (DUPLEX) PRINTING . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

10.PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

10.1FCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

10.2NCU (US). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

10.3NCU (Europe/Asia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

10.4NCU (France). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

INSTALLATION

1.FAX UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1.1INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1.2INITIAL PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

2.ISDN G4 UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

2.1INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

2.2INITIAL PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

3. HARD DISK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3.1INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

3.2INITIAL PROGRAMMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

4.HANDSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

4.1INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

5. IC CARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

5.1INSTALLATION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

5.2ITEMS INITIALIZED WHEN FUNCTION UPGRADE CARD IS INSTALLED OR

REMOVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

SERVICE TABLES AND PROCEDURES

1.SERVICE LEVEL FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

1.1HOW TO ENTER AND EXIT THE FAX SERVICE MODE. . . . . . . . . . . . . . . . 4-1

1.2BIT SWITCH PROGRAMMING (FUNCTION 01). . . . . . . . . . . . . . . . . . . . . . . 4-1

1.3SYSTEM PARAMETER LISTS (FUNCTION 02). . . . . . . . . . . . . . . . . . . . . . . . 4-2

1.4ROM VERSION DISPLAY (FUNCTION 02). . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

1.5ERROR CODE DISPLAY (FUNCTION 03). . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

1.6SERVICE MONITOR REPORT (FUNCTION 04). . . . . . . . . . . . . . . . . . . . . . . 4-5

1.7G3 PROTOCOL DUMP LIST (FUNCTION 05). . . . . . . . . . . . . . . . . . . . . . . . . 4-5

1.8G4 PROTOCOL DUMP LIST (FUNCTION 05). . . . . . . . . . . . . . . . . . . . . . . . . 4-5

1.9RAM DISPLAY AND REWRITE (FUNCTION 06). . . . . . . . . . . . . . . . . . . . . . . 4-6

1.10NCU PARAMETERS (FUNCTION 06). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

1.11RAM DUMP (FUNCTION 06) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

1.12RAM CLEAR (FUNCTION 07). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

1.13HARD DISK (FUNCTION 08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

1.14SERVICE STATION FAX NUMBER (FUNCTION 09). . . . . . . . . . . . . . . . . . . 4-8

1.15SERIAL NUMBER (FUNCTION 10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

1.16MODEM TEST (FUNCTION 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

1.17DTMF TEST (FUNCTION 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

1.18MODEM SIGNAL DETECTION TEST (FUNCTION 11). . . . . . . . . . . . . . . . 4-10

1.19RINGER TEST (FUNCTION 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

1.20STAMP TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

1.21G4 PARAMETER PROGRAMMING (FUNCTION 12). . . . . . . . . . . . . . . . . . 4-11

1.22FILE PRINTOUT (FUNCTION 13). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

1.23TCR/JOURNAL PRINTOUT (FUNCTION 14). . . . . . . . . . . . . . . . . . . . . . . . 4-11

1.24USAGE LOG PRINTOUT (FUNCTION 15). . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

1.25SOFTWARE DOWNLOAD (FUNCTION 16) . . . . . . . . . . . . . . . . . . . . . . . . 4-13

1.26SOFTWARE UPLOAD (FUNCTION 16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

1.27SRAM DATA DOWNLOAD (FUNCTION 16) . . . . . . . . . . . . . . . . . . . . . . . . 4-16

iii

2.BIT SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

2.1SYSTEM SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

2.2SCANNER SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

2.3PRINTER SWITCHES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

2.4COMMUNICATION SWITCHES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40

2.5G3 SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47

3.NCU PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

4.DEDICATED TRANSMISSION PARAMETERS . . . . . . . . . . . . . . . 4-63

4.1PROGRAMMING PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

4.2PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64

5.SERVICE RAM ADDRESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67

6.SPECIAL TOOLS AND LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . 4-77

REMOVAL AND REPLACEMENT

1.PRECAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

2.NCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

3.FCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

TROUBLESHOOTING

1.ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

2.FAX SC CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

2.1SC1201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

2.2SC1701 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

2.3FAX SC CODE TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

SECTION 1

OVERALL MACHINE

INFORMATION

July 31st, 1996 SPECIFICATIONS

1. SPECIFICATIONS

Type

Desktop type transceiver

Circuit

PSTN, PABX, ISDN (optional)

Connection

Direct couple

Original Size (Book) Maximum Length:

432 mm

Maximum Width:

297 mm

Original Size (ADF) Length:

105 - 1200 mm [4.1 - 47.2 ins] Width: 105 - 297 mm [4.1 - 11.7 ins]

Thickness:

0.05 to 0.2 mm [2 to 8 mils] (equivalent to 40 - 90 g/m

Note:

The maximum original length varies in immediate tx mode, depending on the scan width and resolution. Refer to the ”Video Data Path” later in this chapter for more details.

Scanning Method

Flat bed, with CCD

)

Memory Capacity ECM: 128 kbytes

SAF: Standard: 1 Mbytes: 73 pages With 2 Mbyte option: 219 pages With 4 Mbyte option: 365 pages With 80 Mbyte HDD option: 1200 pages With 80 Mbyte HDD plus Function Upgrade Card: 3000 pages

Measured using an ITU-T #1 test document (Slerexe letter)

Compression

MH, MR, EFC, MMR, SSC (MMR only with ECM and G4) SAF storage for memory tx: MMR and raw data

Protocol

Group 3 with ECM Group 4 (ISDN G4 option required)

Modulation

V.17(TCM), V.29 (QAM), V.27ter (PHM), V.21 (FM)

Data Rate (bps) G3: 14400/12000/9600/7200/4800/2400,

Automatic fallback

G4 (option): 64 kbps/56 kbps

Overall

Machine

Information

Scan Width

210 mm [8.64 ins] ± 1% (A4) 216 mm [8.5 ins] ± 1% (8.5" x 11") 256 mm [10.2 ins] ± 1% (B4) 279 mm [11.0 ins] ± 1% (11" x 17"r) 296 mm [12.2 ins] ± 1% (A3)

Resolutions

8 x 3.85 lines/mm 8 x 7.7 lines/mm 8 x 15.4 lines/mm (G3 only) 16 x 15.4 lines/mm 200 x 100 dpi 200 x 200 dpi 400 x 400 dpi

Note:

To use the 8 x 15.4 lines/mm, 16 x 15.4 lines/mm and 400 x 400 dpi resolutions, an optional page memory card is required.

I/O Rate

With ECM: 0 ms/line Without ECM: 2.5, 5, 10, 20, or 40 ms/line

Transmission Time G3: 6 s at 14400 bps; Measured with G3

ECM using memory for an ITU-T #1 test document (Slerexe letter) at 8 resolution G4 (option): 3 s at 64 kbps; Measured with an ITU-T #1 test document (Slerexe letter) at 200

1-1

X 200 dpi resolution

X 3.85 l/mm

FEATURES July 31st, 1996

2. FEATURES

2.1 FEATURES LIST

KEY: O = Used, X = Not Used, A = Optional memory 2M/4M required B = Optional hard disk required C = Optional page memory required D = Optional function upgrad e card required E = Optional G4 kit required

Video Processing Features

Automatic image density selection O Contrast O Halftone (Basic & Error Diffusion) O MTF O Reduction before tx (B4 -> A4) O Reduction before tx (A3 -> B4) O Reduction before tx (A3 -> A4) O Scanning Resolution - Standard O Scanning Resolution - Detail O Scanning Resolution - Fine C Scanning Resolution - Superfine C Smoothing to 400 x 400 dpi when

printing

Communication Features - Automatic

AI short protocol O Automatic fallback O Automatic redialing

(Memory tx only) Confidential reception A or B Dual Access O Substitute reception O

Communication Features -

User Selectable

90° Image Rotation before tx O Action as a transfer broadcaster A or B AI Redial (last ten numbers) O Answering machine interface X Authorized Reception O Auto-answer delay time X

Communication Features -

User Selectable

Automatic dialing (pulse or DTMF) O Auto Document O Automatic Voice Message X Batch Transmission A or B Book Original tx O Broadcasting O Chain Dialing O Communication Record Display O Confidential ID Override O Confidential Reception A or B Confidential Transmission O Direct Fax Number Entry O Economy Transmission A or B Fax on demand X Forwarding A or B Free Polling O Groups (9 groups) O Group Transfer Station A or B Hold X ID Transmission O Immediate Redialing O Immediate transmission O Keystroke Programs O Length Reduction O Memory transmission O Multi-step Transfer A or B Next Transfer Station X Non-standard original size

specification OMR X On Hook Dial O Ordering Toner X Page Count O Page separation mark O Parallel memory transmission O Personal Codes O Personal Codes with Conf. ID X Partial Image Area Scanning X Polling Reception O Polling Transmission O Polling tx file lifetime in the SAF O Quick Dial (Standard: 56 stations) O

1-2

July 31st, 1996 FEATURES

Communication Features -

User Selectable

Reception modes (Fax, Tel) O Remote control features X Remote Transfer X Resolutions available for reception

Standard Detail Fine (16 x 15.4 l/mm only) Superfine

Restricted Access O Secured Polling O Secured Polling with Stored ID

Override Secure Transmission X Send Later O Silent ringing detection X Speed Dial

(Standard: 100 stations) Telephone Directory O Tonal Signal Transmission O Transfer Request O Transmission Deadline (TRD) O Turnaround Polling X Two-step Transfer X Two in one O Voice Request (immed. tx only) X

Communication Features -

Service Selectable

AI Short Protocol O Auto-reduction override option O Busy tone detection O Cable Equalizer PSTN O ISDN E Closed Network (rx) O Continuous Polling Reception O Dedicated tx parameters O ECM O EFC O Inch-mm conversion before tx O mm-inch selection when printing O Page retransmission times O Protection against wrong conn. O Resol’n stepdown override option X Short Preamble X Well log O

Other User Features

Area code prefix X Center mark O Checkered mark O Clearing a memory file O Clearing a polling file O

O O C C

Clock O Confidential ID A or B Counters O Daylight Saving Time O Destination Check X Direct entry of names O File Retention Time O File Retransmission O Function Programs (F1 - F4) O Hard Disk Filing System X ID Code O Label Insertion ("To xxx") O Language Selection SP

mode Manual service call O Memory Lock A or B Modifying a memory file (tx) O Multi Sort Document Reception A or B Own telephone number O Energy Saver (Night Timer and

standby mode) Print density control O Printing a memory file O RDS on/off O Reception Mode Switching Timer X Reception time printing O Remaining memory indicator O Reverse Order Printing A or B RTI, TTI, CSI O Speaker volume control O Specified Cassette Selection O Substitute reception on/off O Telephone line type O Toner Saving Mode X TTI/CIL on/off O User Function Keys (4 keys) O User Parameters O Wild Cards O

Overall

Machine

Information

1-3

FEATURES July 31st, 1996

Reports - Automatic

Charge Control Report X Communication Failure Report O Confidential File Report A or B Error Report O Fax On Demand Report X Memory Storage Report O Mode Change Report X Polling Clear Report O Polling Reserve Report O Polling Result Report O Power Failure Report O TCR (Journal) O Toner Cassette Order Form X Transfer Result Report A or B Transmission Result Report O

Reports - User-initiated

Authorized Reception List O Charge Control Report X File List O Forwarding List A or B Group List O Hard Disk File List X Personal Code List O Program List O Quick Dial List O Specified Cassette Selection List B Speed Dial List O TCR O Transmission Status Report X User Function List X User Parameter List O

Service Mode Features

File Transfer O Hard Disk Utilities (Format etc.) B LCD contrast adjustment SP

mode Line error mark O Memory file printout (all files) O Modem test O NCU parameters O Periodic service call O PM Call O Printing all communication

records kept in memory Programmable attenuation X Protocol dump list O RAM display/rewrite O RAM dump O RAM test O RDS

- RAM read/write

- Dial data transfer (Quick/Speed)

- Software transfer Ringer test O ROM version display O Serial number O Service monitor report O Service station number O Software Download O Software Upload O SRAM data download O System parameter list O Technical data on the TCR O

O O O

Service Mode Features

Back-to-back test O Bit switch programming O Buzzer test O Cable equalizer O Comm. parameter display O Counter check O Country code O DTMF tone test O Echo countermeasure O Effective term of service calls O Error code display O Excessive jam alarm O

1-4

July 31st, 1996 FEATURES

2.2 CAPABILITIES OF P ROG RAMMABLE ITEMS

The following table shows how the capabilities of each programmable item will change after the optional funct ion upgrade card is installe d.

Item Standard With function

upgrade card

Maximum number of memory files plus polling rx files

Maximum number of memory files 200 1000 Maximum number of destinations per file 200 200 Maximum number of destinations overall 500 2000 Maximum number of pages overall 1200 3000 Number of Quick Dials 56 56 Number of Speed Dials 100 1000 Number of Groups 9 30 Maximum number of destinations per Group 200 200 Maximum number of destinations dialed from

the ten-key pad overall Maximum number of programs 56

(programmed in 56

Maximum number of destinations per program

Maximum number of destinations used for all programs

Maximum number of Auto Documents 6

(programmed in 6

Maximum number of communication records for the TCR (Journal) stored in the memory

Maximum number of addresses specified for features such as Authorized Reception and Specified Cassette Selection

Maximum number of personal codes 20 50

200 1000

100 1000

Quick Dial keys)

200 200

300 2000

Quick Dial keys)

256 1000

30 50

(programmed in 56

Quick Dial keys)

(programmed in 18

keys)

Overall

Machine

Information

1-5

FEATURES July 31st, 1996

2.3 POSSIBLE COMBIN ATIONS OF OPTI ONAL IC CARDS

The following table shows which optional IC cards can be or cannot be installed at the same time. "Yes" in the table indicates that these two opt ion al IC cards can be installed at the same time. “No” in the table indicate s tha t th ese tw o optional IC cards cannot be insta lled at the same time.

ABCDE

A: Feature Expander 2M/4M No Yes Yes Yes B: Feature Expander 80M (HDD) No Yes Yes Yes

C: Function Upgrade Card Yes Yes Yes No D: Page Memory Card Yes Yes Yes Yes E: Flash/SRAM Data Copy Tool

(Service Tool)

Yes Yes No Yes

1-6

July 31st, 1996 OVERALL MACHINE CONTROL

3. OVERALL MACHINE CONTROL

3.1 SYSTEM CONTROL

Overall

Machine

Information

Flash ROM

(2MB)

Function

Upgrade

Card

Lower Left

CPU BUS

Feature

Expander

2M/4M

SRAM

(128kB)

HDD

Interface

Upper Lower Right

SCP

R144EFXL

Modem

80MB

HDD

DRAM

(2.5MB)

DMA BUS

Page

Memory

Card

VIF

FCU

Bus Interface Parallel Interface Serial Interface

Monitor

Speaker

Analog Circuit

1-7

NCU

BiCU

A194V500.wmf

OVERALL MACHINE CONTROL July 31st, 1996

The basic Fax Unit consists of two PCBs: an FCU and an NCU. The FCU controls all the fax communications and fax feature s, in coo pe rat ion with the base copier’s main board, the BiCU. The NCU switches th e analo g line between the fax unit and the optional external telephone.

Fax Options

1. G4 unit: This allows the Fax Unit to communicate over an ISDN (Integrated Services Digital Net work) line .

2. Function Upgrade Card: This expands the system’s SRAM capacity to hold programmed telephon e numbe rs, com m unication records, etc.

3. Feature Expander - 2M/4M: This expands the DRAM’s capacity to hold up to 3MB or 5MB of received data or data for transmission. Also, some additional feat ure s beco me a vailable when the Feature E xpan de r is installed.

4. Feature Expander - Hard Disk: This extends the image data capacity to 80MB. Also, some addition al features become available when th e Fea tu re Expander is installed.

5. Page Memory Card (High Resolution Card): This enhances the scan and receive resolutions to up to 400 x 400 dpi. Witho ut this card , only ’Standard’ and ’Detail’ resolutions are available for both tra nsm issio n an d reception.

3.2 POWER DISTRIBUTIO N AND CONTROL

The FCU is supplied from the base copier’s B iCU (+24V , +12 V, -12V , and +5VE) and PSU (+5V). Refer to the base copie r’s ser vice manual for de tails.

3.3 MEMORY B ACK-UP

The system parameters and programmed items in th e SRAM on th e FCU and the SRAM on the Function Upgrade Card are backed up by a battery (long-term backup), in case the the base copier’s ac switch is turned off.

Note: The data in the SRAM is not guaranteed if th e card is disco nnected

from the machine. Whenever the Function Upgrade Card needs to be removed, follow the instructions in the software upload and download procedures in the Service Level Functions section to avoid any data loss.

The SAF memory DRAM on the FCU and the Feature Expander Card are backed up by a rechargeable battery for 1-hour.

1-8

July 31st, 1996 VIDEO DATA PATH

4. VIDEO D ATA P ATH

4.1 TRANSMISSION

Scanner

Sub Scan Magnification

Memory Tx

Auto Shading Gamma Correction MTF Graduation Processing Main Scan Reduction

- 400 to 200 dpi Thresholding

Memory Tx Image Rotation Immediate Tx

DCMMR

FCU

SAF Memory

SCP

(DCR)

BiCU

Page Memory

(Rotation)

SCP

(DCMMR)

Decompression Compression (Main Scan Reduction)

Immediate Tx

Auto Shading Gamma Correction MTF Graduation Processing Main Scan Reduction

- 400 to 200 dpi

- Inch-mm Conversion

- A3 to B4, A3 to A4, B4 to A4 Thresholding

Page Memory

SCP

(DCR)

Compression

Overall

Machine

Information

Modem

NCU CiG4 CiG4

Analog G3 ISDN G3 ISDN G4

1-9

A194V501.wmf

VIDEO DATA PATH July 31st, 1996

Memory Transmission and Parallel Memory Transmission

The base copier’s scanner scans th e origina l at th e sele cte d reso lution in inch format. The BiCU processes the data and transfe rs it to the FCU.

Note When scanning a fax ori gin al, the BiCU uses th e MT F and

Thresholding parame te r sett ings p rogram me d in th e scan ne r bit switches, not the copier’s SP modes.

Then, the FCU converts the data to mm format, and compresses th e data in MMR+raw format to store it in the SAF memory. If image rotation is possible, the image is rotated in page memory before compression.

At the time of transmissio n, the FCU decomp resse s the store d data , th en re-compresses and/or reduces th e data if nece ssary for tran sm ission . Eit her the NCU or CiG4 (optional) transmit s the data to the line.

Immediate Transmission

The base copier’s scanner scans th e origina l at th e reso lut ion agre ed with the receiving terminal. The BiCU video processes th e data and tran sfe rs it to the FCU.

Note When scanning a fax ori gin al, the BiCU uses th e MT F and

Thresholding parame te r sett ings p rogram me d in th e scan ne r bit switches, not the copier’s SP modes.

Then the FCU stores the data in page memory, and compresses the data for transmission. Either the NCU or CiG4 (option al) tra nsmi t s the data to the line.

The maximum transmittable page size for immediate transmission varie s depending on the resolution selected and the size of page memor y available . This is becuse the scanned dat a is store d in th e pa ge me mo r y befo re transmission, not the SAF memory. Refer to the following table for details.

Width Resolution Without optional

Page Memory card

Standard 1200 mm (47.2") 1200 mm (47.2")

A4 (210 mm)/

8.5"

B4 (256 mm)/

10.1"

A3 (297 mm)/

11"

Detail 600 mm (23.6") 1200 mm (47.2")

Fine Not usable 1200 mm (47.2")

Superfine Not usable 600 mm (23.6")

Standard 1000 mm (39.4") 1200 mm (47.2")

Detail 500 mm (19.7") 1200 mm (47.2")

Fine Not usable 1000 mm (47.2")

Superfine Not usable 500 mm (19.7")

Standard 800 mm (31.5") 1200 mm (47.2")

Detail 432 mm (17.0") 1200 mm (47.2")

Fine Not usable 800 mm (31.5")

Superfine Not usable 432 mm (17.0")

With optional Page

Memory card

1-10

July 31st, 1996 VIDEO DATA PATH

4.2 RECEPTION

Analog G3 ISDN G3 ISDN G4

NCU CiG4 CiG4

Modem

SAF Memory

FCU

Overall

Machine

Information

Decompression

Image Rotation

SCP

(DCR)

Page Memory

Data: 6 bits (64 levels) Phase Control: 2 bits

BiCU

Printer

SCP

(DCR)

Error Check

A194V502.wmf

First, the FCU stores the data from either an analog line or an ISDN line to the SAF memory. (The dat a goes in pa ralle l t o th e SCP , an d is checke d fo r error lines/frames.)

The FCU then decompresses the data and transfers it to page memor y. If image rotation is possib le, the image is rotated in page memor y. The data is transferred to the BiCU in the 8-b it format (6-bits level/2-bits ph ase ) used by the base copier’s laser engine for print ing.

1-11

SECTION 2

DETAILED SECTION

DESCRIPTIONS

July 31st, 1996 AUTOMATIC SERVICE CALLS

1. AUTOMATIC SERVICE CALLS

1.1 SERVICE C ALL CONDITIONS

The fax unit makes an automatic service call when an SC code, other than the following, is informed from th e base cop ier’s BiCU.

Note The service station’s fax number ha s to be program med in

advance, for the machine to make a ser vice call.

Exceptions

Address (H) Definition Default SC code

49FB64 1st SC code - High byte (BCD) 01 192 49FB65 1st SC code - Low byte (BCD) 92 49FB66 2nd SC code - High byte (BCD) 01 193 49FB67 2nd SC code - Low byte (BCD) 93 49FB68 3rd SC code - High byte (BCD) 03 390

49FB69 3rd SC code - Low byte (BCD) 90 49FB6A 4th SC code - High byte (BCD) 03 393 49FB6B 4th SC code - Low byte (BCD) 93 49FB6C 5th SC code - High byte (BCD) 06 691 49FB6D 5th SC code - Low byte (BCD) 91

49FB6E 6th SC code - High byte (BCD) 09 980

49FB6F 6th SC code - Low byte (BCD) 80

49FB70 7th SC code - High byte (BCD) FF Not programmed

49FB71 7th SC code - Low byte (BCD) FF

49FB72 8th SC code - High byte (BCD) FF Not programmed

49FB73 8th SC code - Low byte (BCD) FF

49FB74 9th SC code - High byte (BCD) FF Not programmed

49FB75 9th SC code - Low byte (BCD) FF

49FB76 10th SC code - High byte (BCD) FF Not programmed

49FB77 10th SC code - Low byte (BCD) FF

SBU adjustment error

APS sensor error

TD sensor error 1

TD sensor error 2

BiCU/FCU

communication error

BiCU program load error

Detailed

Section

Descriptions

To add additional SC codes, program them in the blank addresses. The fax unit cannot make an automatic service call when a Fax SC code

condition has occurred. Refer to Trouble sho ot ing f or Fax SC code details.

Manual Service Call

If the service station needs a report, the user can make a service call manually, by setting bit 7 of User Parameter 14 (0E) to ’1’.

2-1

AUTOMATIC SERVICE CALLS July 31st, 1996

A Sample Auto Service Report Format

* * * Auto Service Report (Date and Time) * * *

Problem S C Latest 10 copier's SC codes J A M BJ A M 2FEED SIZE005 0708

Service Monitor Report Contents

System Parameter List Contents

Reason of the call - "SC Code" or "PM Call"

Last 4 digits of the total print counter

Paper Size Code

Paper Feed Station

Jam Location

A194D508.wmf

Paper Size Code Table

Code Size Code Size

005 A4 sideways 038 8.5 x 11" sideways 006 A5 sideways 044 5.5 x 8.5" sideways 014 B5 sideways 160 11 x 17" lengthwise 031 Non-standard 164 8.5 x 14" lengthwise 132 A3 lengthwise 166 8.5 x 11" lengthwise 133 A4 lengthwise 172 5.5 x 8.5" lengthwise 141 B4 lengthwise 142 B5 lengthwise 159 Non-standard

2-2

July 31st, 1996 AUTOMATIC SERVICE CALLS

1.2 PERIODIC SERVICE CALL

The periodic service call notifies the service station of the machine’s condition. The call is made at a time inter val progra mmed in the follo wing RAM addresses:

Parameters Address (H)

Call interval: 01 through 15 month(s) (BCD)

00: Periodic Service Call Disabled

Date and time of the next call

Year: last two digits of the year (BCD) 48037A Month: 01 through 12 (BCD) 48037B Day: 01 through 31 (BCD) 48037C Hour: 00 through 23 (BCD) 48037D

To change these settings after programming, change the call interval. The machine then automatically changes the remaining parameters by referring to the interval and the current date and time.

480379

Detailed

Section

Descriptions

1.3 PM CALL

If PM alarm is enabled by the base copie r’s SP mode and PM call is ena ble d by system switch 01, the machine will make an automatic service call when the base copier’s PM counter reaches the PM interval.

Cross reference

PM service call on/off: System s witch 01, bit 0 PM alarm on/off: SP mode 5-501-2 (default: enabled) PM interval: SP mode 5-501-1 (default: 45k prints)

1.4 EFFECTIVE TERM OF SERV ICE CALLS

If a time limit for the effectiveness of service calls is programmed, the machine stops making auto mat ic service calls after the time limit.

Program the time limit at the following addresses. This f un ctio n is disab led when all of these addresses are 00(H).

Address (H)

Year: last two digits of the year (BCD) 480383 Month: 01 through 12 (BCD) 480384 Day: 01 through 31 (BCD) 480385

2-3

PARALLEL MEMORY TRANSMISSION July 31st, 1996

2. PARALLEL MEMORY TRANSMISSION

Using basic memory transmission, normally the machin e starts dialing after the document has been comp let e ly scan ned. Using Parallel Memory Transmission, the machin e starts dialing at the same tim e th e mach ine starts scanning. If the document has mu ltip le page s, th e mach ine scans th em int o memory and sends them while scanning continu es.

Note This function is only usable when sending an original from the

ADF.

The following table shows the differences between normal memory transmission and parallel memory transmission.

Normal memory tx Parallel memory tx

File Reserve Report Printed, if automatic report

printout is enabled.

If the other terminal is busy Tries to resend the message

later.

If transmission failed Tries to resend the remaining

pages later.

If memory overflows during scanning

If a document jam occurred during scanning

How and when the scanned message is erased from memory

Memory threshold to start scanning into memory

Meaning of the stamp mark Successfully stored. Successfully stored. Batch numbering (P. x/x) Enabled Not available unless the

Including a sample of the image on reports

Stops scanning and erases all the scanned pages from memory, or sends all the scanned pages (user’s choice).

Stops scanning and deletes all the scanned pages from memory.

The complete message is erased after all the pages have been sent.

Depends on the setting of communication switch 0D. Default setting - 24kB

Possible Possible

Not printed.

Continues scanning the document into memory, and tries to resend it later.

Tries to resend the remaining pages later.

Stops scanning and hangs up the communication when memory overflow is detected. Then erases all the scanned pages from memory without notifying the user.

Stops scanning and hangs up the communication when a document jam is detected.

Same as memory transmission.

Depends on the setting of system switch 10. Default setting - 512 kB

number of pages is programmed manually.

2-4

July 31st, 1996 PARALLEL MEMORY TRANSMISSION

In the following cases, the machine uses normal memory transmission even if parallel memory transmission is enabled .

• Send later transmission

• Broadcasting

• Transmission of an Auto Document only

• Transfer request transmission

• When Image Rotation before Tx is enabled, and an A4 sidewa ys or

8.5 x 11" sideways original is detected

• If the other terminal is busy

• If the external telephone connecte d to the machin e is in use

• When communication switch 0A, bit 0 is set to 1, and the machine is

using memory transmission when redialing

• When remaining memo r y space is less than the thre sho ld fo r parallel

memory transmission (default = 512 kB)

• When the original is located on the expo sure glass

Detailed

Section

Descriptions

When using G4 transmission, parallel memory transmission is normally disabled, becau se tra nsm issio n using G4 is much faster than scanning. As a result, G4 transmission using parallel memory transmission takes about twice as long as normal memory transmission (using an ITU-T #1 test cha rt).

If the document contains pages with complicate d im ages or it is a pho to document using halftone, para llel memo r y transmission may be faste r tha n normal memory transm issio n. If th e use r common l y sends this t ype of fa x message, enable parallel memory transmission for G4 transmission by changing system switch 11, bit 7 to 1.

Cross Reference

Parallel memory tx (G3) On/Off - User parameter 07, bit 2 Parallel memory tx (G4) On/Off - System switch 11, bit 7 Memory threshold for enabling parallel memory tx

- System switch 10, bits 0 to 7 Point of resumption of memory transmissio n upon redia ling

- Communication switch 0A, bit 0

2-5

TRANSFER BROADCASTING July 31st, 1996

3. TRANSFER BROADCASTING

This machine uses a new algorithm to identify the requester’s fax number to send back the transf er resu lt rep ort. Previously, th e tra nsf er resu lt report did not sometimes reach the requeste r with the old algorith m. In a transfer broadcast ing ope rat ion , th e tra nsf er requester informs its own fax number to the transfer station. The transfer station uses that number to identify the request er’s fax numb er, which th e tra nsf er sta tio n must dial to send the transfer result report ba ck to th e reque ste r. Transmission of the tran sfe r result repo rt an d sele ctio n of the numb er to dial depends on the following three set tin gs.

Setting Switch

Conditions required for transfer result report transmission

Action when there is no fax number in the programmed Quick/Speed dials which matches the requester’s own fax number

Number of digits compared to find the requester’s fax number from the programmed Quick/Speed dials.

Communication switch 0B, bit 3 0: Always 1: Only if there is an error

Communication switch 0B, bit 5 0: Transfer is cancelled 1: Transfer is continued

Communication switch 0C, bits 0 to 4 (default setting = 5 digits)

The requester’s fax number f orm a t is norm a l l y as follo ws. [ International access code ] [ Count r y cod e ] [ Are a code ] - [ Local tel. no.] A pause (“-”) must be programmed between area code and local te l. no.

Before the machin e tra nsf ers the message, the machine compares the last few digits of the requester’s own fax number wit h all the progra mmed Quick/Speed Dials as shown in the following diagram. Starting from Quick Dial 01 to the end of the Speed Dial codes. (Th e defa ult sett ing f or th e number of digits compared is 5; see the above table.)

If the machine find s a numb er in which the compared digits ma tch tho se of the requester’s own fax numbe r, th e mach ine choo ses th e numbe r as the destination for sending t he repo rt back. H o wever, depen din g on the numb er of digits compared, the machine may choose the wrong destination, as shown in the example diagram on the next page.

Note that the machine does not compare the following:

• Pause (“-”)

• ISDN sub-address (“/aaaa”, “aaa a” is a sub-a ddress numbe r)

With a G4 transfer request, the G4 and G3 own fax numbers are informed from the requeste r, then the machine comp are s the G4 nu mber f irst, and the G3 number second.

2-6

July 31st, 1996 TRANSFER BROADCASTING

Example

Requester's Own Fax No.

0111201-2223456

No. of digits to compare

4 5 6 7 8

9 10 11 12 13

Result

Q01 Q05 Q05 Q05 Q08 Q08 Q08

S07 No match No match

In this example: Transfer Requester: USA (international dial access code 011) Transfer Station: UK (international dial access code 00)

Q01 Q02 Q03 Q04 Q05 Q06 Q07 Q08 Q09 Q10

Q56

071-441-3456

020-4773456 020-4776666

00-81454771748

2223456

00-4961969063456

0569723456

201-2223456

00-31204564569

013453456

0875558888

With

Function Upgrade Card

S00 S01 S02 S03 S04 S05 S06 S07 S08 S09

S99

S999 0454771759

1223456 5413654

00-4126567878

0454771748 0634558989

07474125899 00-85226356541 00-12012223456

02212301564

6524555

00-496158756452

2223456S100

A194D501.wmf

Detailed

Section

Descriptions

In the above example:

• If the requester is within the same area, Quick Dial 05 or Quick Dial 08 is

the correct destination, depending on the required dialing method for numbers in the same countr y or area. The mach ine select s Quick Dial 05 if it compares from 5 to 7 digits, and selects Quick Dial 08 if it compares from 8 to 10 digits.

• If the requester is in ano ther country, Speed Dial 07 is the correct

destination. The mach ine select s this nu mber if it compa res 11 di gits. An y setting higher than this will result in no match, due to the differen t internationa l access cod es at the start of the number s.

• If the machine com p are s less tha n 4 digits, it select s Quick Dial 01.

• If the number of digits to compare is set to zero, the machine sends the

report to the first Quick or Speed Dial number programmed in.

Note that the resu lt can be cha nged depending on the locat ions where the candidates are progra mmed . For exam ple , if “00 -1-2 01 2223 456” is programmed in Quick Dial 01, the machine always selects this number for sending back the report , e ven if th e tra nsfer request is from within the same country.

2-7

TRANSFER BROADCASTING July 31st, 1996

When programming the mach ine to act as a Transfer Stat ion , the combination of th e communication s witch 0C sett ing (num b er of di git s) and the programmed locatio n of the requ est er’s fa x number ha s to be consid ere d carefully.

If the machine can no t fin d th e de stination for the rep ort , it eit he r:

• Stops the transfer operation and prints a report locally (if bit 5 of

communication switch 0B is 0).

• Or, continues the transfer operatio n an d prin ts a result report locally after

finishing all the transfer operat ion s (if bit 5 of communicat ion s witch 0B is

1).

Cross Reference to other par am ete rs

ID code programming - Key operator mode Use of economy transmission during a tra nsf er opera tion to end receivers

- Communication switch 0B, bit 0 Use of economy transmission during a transfer operation to next tran sfe r stations

- Communication switch 0B, bit 1 Use of label insertion for the end receivers in a transfer operation

- Communication switch 0B, bit 2 Printout of the message when acting as a transfer stat ion

- Communication switch 0B, bit 4

2-8

July 31st, 1996 ORIGINAL SCAN PROCESS

4. ORIGINAL SCAN PROCESS

The machine scans at 400 dpi. The other end may have a different paper size or may not be able to print at 400 dpi. The base copier’s scanner and BiCU work together to get the required resolution and size for transmission.

4.1 MAIN SCAN DIRECTION

The base copier’s scanner al ways scans at 40 0 dpi (ma in scan direct ion ). Then, the BiCU processes the scanned data to get the re quired resolution and data width. This is the sam e proce ss as Redu ctio n in cop y mode .

dpi: dots per inch, dpm: dots per mm

Reduction 400 dpi 200 dpi 16 dpm 8 dpm

No reduction 100.0% 50.0% 101.5% 51.0% A3 to B4 86.5% 43.0% 88.0% 44.0% A3 to A4 70.5% 35.0% 71.5% 36.0% B4 to A4 81.5% 41.0% 83.0% 41.5%

Detailed

Section

Descriptions

4.2 SUB SCAN DIRECTION

In the sub scan directio n, the base machine’s scanner changes the moto r speed to get the required resolution. Howe ver, if the reduction rate requ ires a faster speed than th e scan ne r mo to r’s m a xim um (37% reduction rate when using the ADF), the scanner and the BiCU (IPU) work together to get the required resolutio n as shown in the second table bel o w.

Reduction 400 lpi 200 lpi 100 lpm 15.4 lpm 7.7 lpm 3.85 lpm

No reduction 100.0% 50.0% 25.0% A3 to B4 86.5% 43.2% 21.6% A3 to A4 70.5% 35.2% B4 to A4 81.5% 40.8% 20.4%

lpi: lines per inch, lpm : lines per mm

Notes Mode Reduction by Scanner Reduction by BiCU

Case 1 (35.2%) 52.8% 66.7% Case 2 (25.0%) ADF 50.0% 50.0%

Book 25.0% Case 3 (21.6%) 43.2% 50.0% Case 4 (17.6%) 52.8% 33.3% Case 5 (20.4%) 40.8% 50.0% Case 6 (34.5%) 51.9% 66.7% Case 7 (24.5%) ADF 48.9% 50.0%

Book 36.8% 66.7% Case 8 (21.2%) 42.4% 50.0% Case 9 (17.3%) 51.9% 33.3% Case 10 (19.9%) 39.8% 50.0%

17.6%

97.8% 48.9% 24.5%

84.6% 42.3% 21.2%

69.0% 34.5%

79.7% 39.8% 19.9%

7 8

17.3%

2-9

PAGE SPLIT TRANSMISSION (BOOK TRANSMISSION) July 31st, 1996

5. PAGE SPLIT TRANSMISSION (BOOK TRANSMISSION)

Page 1Page 1

Page 2

B4 A4

8.5" x 11"

11" x 17"

Page 2

A194D502.wmf

This function allows a B4, A4/8. 5 x 11", or A3/11 x 17" size book original to be sent on two separate pages.

When this function is selecte d, the machine scans the or igin al t wice , an d transmits the scan ne d pa ge s in the same seque nce as the pages were scanned.

In the above example, the page with number ’2’ is sent first, and the page with number ’1’ is sent next. To send page ’1’ first, the original should be placed so that page ’1’ is at th e lef t.

Notes • Memory transmission is use d whene ver th is f un ctio n is

selected.

• This funct ion is onl y possible whe n sen din g a book origina l

from the exposure glass.

• If this fu nct ion is used fo r an A3 or 11 x 17" ori ginal, the

pages may be transmitted in a lengthwise direction, depending on the setting of "Image Rotation bef ore Transmission" (see the next page).

2-10

July 31st, 1996 IMAGE ROTATION BEFORE TRANSMISSION

6. IMAGE ROTATION BEFORE TRANSMISSION

DF Mode

1st Pixel

1st Line

90°

(< 210mm/8.5")

Main Scan

(297mm/11")

Sub Scan

Scanned Image

Book Mode

1st Pixel

90°

Scanned ImageOriginal Transmitted Image

A194D503.wmf

(< 210mm/8.5")

Main Scan

(297mm/11")

Original Transmitted Image

Sub Scan

1st Line

This function avoids the un int en tio na l reduction of an A3 or 11" width original. When the machine detects an A4 or 8.5 x 11" original pla ced sid e ways in the ADF or on the exposure gla ss, th e fa x unit rotates the scanned image clockwise by 90 degrees before tran sm ission , as sho wn ab o ve.

Detailed

Section

Descriptions

Notes • The orientations of the tran sm itt ed ima ge from th e ADF an d

from the exposure glass are different.

• Even if Paralle l Memor y Transm ission is enabled , th e

machine uses normal memory transmission to send an A4 or

8.5 x 11" sideways original.

• If the machine carries out this function while prin tin g, the

machine stops printin g until scanning is completed.

Cross Reference

Image rotation before tx on/off - Scanner switch 0F, bit 0

2-11

SMOOTHING July 31st, 1996

7. SMOOTHING

When the fax unit prints a recei ved fa x image, the FCU converts the data into 400 x 400 dpi, 16 x 15.4 l/mm, or 15.4 x 16 l/mm (im age rotation) resolution, and smooths the image. The FCU then sends the smooth ed data to the printer in the 64 gradation levels + 3 laser pu lse positions format used by the base copier.

200 dpi

100 dpi

200 dpi

Received Image

200 dpi

Calculated Pattern

for pixel "A"

400 dpi

Printed Image

(Smoothed)

400 dpi

Received Image

Calculated Pattern

for pixel "A"

Printed Image

(Smoothed)

A194D504.wmf

Note The FCU does not smooth the received data in the following

instances:

• Halftone data is received in NSF mode

• The data is recei ved at 400 x 400 dpi or 16 x 15.4 l/mm

resolution.

• When image rotation is done, if the received data is at 200 x 100

dpi, 200 x 200 dpi, 8 x 3.85 l/mm, or 8 x 7.7 l/mm.

2-12

+ 196 hidden pages